A PRACTICAL GUIDE TO THE EFFECTIVE DESIGN AND MANAGEMENT OF MPAs FOR SHARKS AND RAYS - 2019 REPORT - WWF Sharks
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This project has been a collaboration between the Centre LEAD AUTHOR: for Sustainable Tropical Fisheries and Aquaculture Cassandra L Rigby, James Cook (CSTFA) at James Cook University, Australia, and WWF. University ABOUT WWF AUTHORS: WWF is one of the largest and most experienced Colin Simpendorfer, James Cook independent conservation organizations, with over University 5 million supporters and a global network active in Andy Cornish, WWF-Hong Kong more than 100 countries. WWF´s mission is to stop the degradation of the planet´s natural environment and to build a future in which humans live in harmony with HOW TO CITE THIS WORK: nature, by conserving the world´s biological diversity, Rigby, C.L., Simpfendorfer, C.A. ensuring that the use of renewable resources is and A. Cornish (2019) A Practical sustainable, and promoting the reduction of pollution Guide to Effective Design and and wasteful consumption. WWF works to reverse Management of MPAs for Sharks declining shark populations through Sharks: Restoring and Rays. WWF, Gland, Switzerland. the Balance, a global initiative. www.panda.org DESIGN AND PRODUCTION: sharks.panda.org Evan Jeffries, Catherine Perry – Swim2Birds Ltd www.swim2birds.co.uk ABOUT CSTFA Research within the Centre for Sustainable Tropical Fisheries and Aquaculture (CSTFA) focuses not only Published in May 2019 by WWF on the aquatic and aquaculture systems that produce – World Wide Fund for Nature, food, but also the industries and communities that Gland, Switzerland utilise them. Multidisciplinary collaborations between our researchers provide the synergies to address Any reproduction in full or part substantial research problems in a way that individual must mention the title and credit research groups cannot. CSTFA provides research the above-mentioned publisher as outputs for sustainable food production to local, state, the copyright owner. federal and international resource managers, both in government and in the private sector. Thus, making us a key player in helping secure aquatic food production COVER PHOTOGRAPH: in the tropics for future generations. © naturepl.com / Cheryl-Samantha www.jcu.edu.au/tropical-fisheries-and-aquaculture Owen / WWF WWF and James Cook University would like to thank the Shark Conservation Fund for its financial support of the James Cook University-led project, ‘Maximising outcomes for shark and ray MPAs’, that contributed significantly to the production of content for this Guide. Thanks also to the project’s partner institutions – the Australian Institute of Marine Science, the University of Queensland and Simon Fraser University – and to the project team for their input, comments and thoughts. WWF International, WWF-Germany and WWF-Netherlands provided the financial resources to produce and print this guide.
CONTENTS ABOUT ABOUT THIS GUIDE 5 SECTION 3 SPATIAL FISHERIES 16 SECTION 6 DESIGNING SHARK 32 MEASURES AND RAY MPAS SECTION 1 SECTION 4 DEFINING GOALS 20 SECTION 7 EXISTING MPAS 6 MONITORING AND 40 AND OBJECTIVES FOR EVALUATION SHARK AND RAY MPAS SECTION 2 SECTION 5 INDEX INFORMATION, 44 EFFECTIVE MPA 12 KEY INFORMATION 24 MANAGEMENT REQUIRED FOR ACKNOWLEDGEMENTS PLANNING SHARK AND REFERENCES AND RAY MPAS 3 MPA Guide | Sharks and Rays 2019
DATA The Office of the Comptroller of benefitted from waivers from certain the Currency is warning banks provisions of the SRA Handbook, an to review their risk management extraordinarily dangerous precedent for programs and take necessary a licensing authority, which purports to precautions against escalating be consumer-focused, to establish. attacks by fraud-minded hackers. Once again, the security of the waivers from rules rooted in the LSA and In an alert issued to national banks designed for the protection of the and federal savings associations, the consumer, enables ABSs to operate regulator is warning of Distributed their business and adopt practices ABOUT THIS GUIDE Denial of Service (DDoS) attacks being which are not necessarily consistent used to perpetrate customer account with the best interests of clients. In fraud. A DDoS attack seeks to deny addition, the recent removal of the Internet access to b ‘sunset clause’ in the LSA to allow viser who is ‘tied’ to certain products. ABSs to remain in the Solicitors’ Concentrating on the latter, the new Compensatio Shark and ray numbers are declining globally, rule is dangerous, because it allows and a quarter of all species are believed to be legal practices to absolve themselves threatened with extinction.1 Marine protected of all responsibility by transferring the areas (MPAs) can potentially play a key role risk to the financial adviser. Further, the in protecting and conserving shark and ray absence of any incentive to monitor the populations – but for MPAs to be effective their performance of the financial adviser to planning, design and management need to ascertain whether or not the referral reflect the unique characteristics of these species. was in the client’s best interests could actually encourage lawyers to make MPAs for sharks and rays need clear goals, objectives referrals where the risk transfer is in line and conservation targets. They must incorporate with their own interests. the considerable scientific knowledge on shark and ray movement, biology and habitat use alongside ABS WAIVER POLICY socioeconomic and cultural considerations; and they Another case in point is the treatment must be well managed and enforced in the long term. of Alternative Business Structure (ABS) applications during the SRA’s first 12 This Guide has been produced to provide practical, months as a licensing authority. When science-based advice on how to maximize the the concept of non-lawyer ownership effectiveness of both new and existing shark and ray was unveiled, legitimate concerns were MPAs, to ensure these animals are protected now raised over the SRA’s ability to properly and far into the future. While it will be of interest to assess the suitability of prospective, anyone wanting to know more about the subject, it’s and in some cases, international, particularly aimed at: investors in ABSs. In response, the © Jarrett Corke / WWF-Canada SRA asserted that it was acutely aware ● Authorities responsible for marine habitat and of the risks posed to consumers by species protection complex structures and the involvement ● N ational fisheries managers of external investors. However, the ● Regional fisheries management organizations regulator’s credibility was subsequently (RFMOs) called into question when three of ● N GOs and other conservation practitioners the first seven ABS licences granted ● Shark and ray tourism operators. 5 MPA Guide | Sharks and Rays 2019
SECTION 1 EXISTING MPAS ● Introduction to MPAs ● Shark and ray species suited to MPAs ● Key features of effective shark and ray MPAs
SECTION 1 © Daniel Versteeg / WWF EXISTING MPAS SHARKS AND RAYS IN CRISIS Sharks and rays are facing a global crisis. Many species are in decline due to overfishing,2 while populations are also being impacted by habitat degradation and loss.3 To compound these pressures, sharks and rays tend to be slow to recover when their numbers fall: they typically grow slowly, mature at a late age, and have few young. The conservation of sharks and rays is urgent and crucial. Many species play vital roles in the marine ecosystem, and their loss would cause major long- term issues for the environment.4 They’re also important for food security, and they generate income in many countries through fishing and tourism.5 © Ethan Daniels / WWF INTRODUCTION: fishing and retention of shark and ray The majority of these shark and ray MPAs encompass countries’ entire products, and sometimes a ban on all SPATIAL MANAGEMENT trade of shark and ray products, all within a exclusive economic zones (EEZs), AND MPAS clearly defined area. They may also include and are sometimes referred to as Support is growing for the use of seasonally closed areas, spatial fishery ‘shark sanctuaries’. Their large size spatial management to protect closures, and fishing gear restrictions. helps ensure they have the potential sharks and rays. Its purpose is to to protect not only inshore coastal protect sharks and rays from major species but also the highly mobile threats, such as overfishing and sharks and rays that range into habitat loss, as well as to reduce open waters offshore. the level of these impacts. Most shark and ray MPAs have Marine protected areas (MPAs) are the only been in place since 2009: as main tool used in spatial management. they’re relatively new, monitoring, They come in many forms – from large, evaluation and adaptive zoned multiple-use areas to small management are particularly important. 38 no-take marine reserves – all aiming to restrict activities that affect marine IN 2018, SOME 38 life within a defined area, thereby There are also many general MPAs EXISTING SHARK benefiting biodiversity and improving that have been implemented to AND RAY MPAS ecosystem resilience.6 MPA governance protect a broad range of marine COVERED A TOTAL varies widely, from government control species and habitats. Although they AREA OF ABOUT 21 to local management. aren’t designed solely for sharks 21 MILLION and rays, they do provide protection Some MPAs have been implemented when they’re large enough and KM2, OR 6% specifically for shark and ray conservation in the right areas to cover key – in this Guide, we refer to them as 6% OF THE movements, critical habitats or life ‘shark and ray MPAs’. These usually OCEAN SURFACE stages, such as nursery areas or incorporate a ban on shark and ray breeding grounds.7 7 MPA Guide | Sharks and Rays 2019
SECTION 1 EFFECTIVE SHARK AND RAY MPAS EFFECTIVE MPAS PROTECT PROTECT POSITIVE REDUCE SPECIES FROM CRITICAL CONSERVATION MORTALITY KEY THREATS HABITATS OUTCOMES habitats for part or all of their © naturepl.com / Doug Perrine / WWF blacknose shark, can be protected lives tend to benefit the most. by inshore MPAs.8 Aside from reefs, inshore habitats important for These reef-dwelling species include: sharks and rays include mangroves, rey reef shark ● G seagrass beds and sand flats.9 hitetip reef shark ● W n Inshore MPAs can also protect iger shark ● T sawfishes which inhabit shallow, lacktip reef shark ● B coastal areas including estuarine and freshwater habitats.10 calloped hammerhead ● S ide-ranging species that predictably n W urse shark ● N use an open water area can benefit ilvertip shark ● S from appropriately placed offshore harptooth lemon shark ● S MPAs. These can protect habitat alapagos shark ● G hotspots or migratory corridors, lacktip shark ● B such as the corridor between the aribbean reef shark ● C Galapagos Marine Reserve and the Scalloped hammerhead sharks, iant manta rays ● G Cocos Island National Park used by Galapagos Islands eef manta rays ● R a variety of species including silky sharks and scalloped hammerheads.11 The effectiveness of MPAs for However, since most scientific studies sharks and rays depends on ONLINE RESOURCE the overlap between their area have focused on MPAs around reefs of spatial protection and the there may be an element of bias in For interactive information on animals’ movements and critical these findings. Other species can also how different shark and ray habitats. These vary widely by benefit: species’ movement distances and species, meaning MPAs are more mall-bodied shark species that spend n S distribution overlap with existing effective for some types of shark their lives in inshore coastal habitats, MPAs, visit https://rossdwyer. and ray than others – research such as the sharpnose shark and shinyapps.io/sharkray_mpa/. suggests those that use reef 8 MPA Guide | Sharks and Rays 2019
The table below shows some examples of shark and ray species that have responded well to MPA protection, and the benefits and factors involved in each case (other species may also benefit in each MPA, but the data quoted relates to specific studies). GENERAL MPA YEAR SIZE SPECIES EVALUATION BENEFIT FACTOR FOR DESIGNATED (KM2) BENEFITED METHOD BENEFIT COCOS ISLAND 1978 1,997 Scalloped UVC-diver Occurrence Reef-associated site NATIONAL hammerhead, observers increased over fidelity, tiger shark PARK, COSTA tiger shark, over 21 years, time in MPA, long-term residents, RICA12 Galapagos shark, telemetry seasonally resident stop-over for scalloped blacktip shark, hammerheads and whale shark whale sharks GLOVERS 1997 328 Caribbean reef Telemetry Stable population No-take zone REEF MARINE shark, nurse shark & fishery- over time, surrounded by area RESERVE, independent frequently occurring with regulated fishing, BELIZE13 longline survey within MPA habitat connectivity KOMODO 1980 1,520 Reef manta ray Telemetry Predictable feeding Aggregation site NATIONAL & visual and cleaning fidelity in protected PARK, observation aggregation sites area INDONESIA14 in MPA MORETON 2016 3,205 Giant guitarfish Telemetry Sub-adults No-take zone in critical BAY MARINE seasonally seagrass habitat NATIONAL PARK, prevalent AUSTRALIA15 Table 1: General MPA benefits to sharks and rays © naturepl.com/naki Relanzon/WWF Reef edge areas can offer particular conservation benefits for shark and ray species BEHAVIOUR FACTORS Bay, Ningaloo Marine Park, ● Critical habitat (important for Australia.17 Juvenile pigeye a particular species, such as The main shark and ray behaviours sharks spend several years in breeding, nursery and feeding which determine the selection of Cleveland Bay, Great Barrier Reef grounds) New-born and juvenile effective MPA areas include: Marine Park, Australia.18 scalloped hammerheads occur ● Residency and site fidelity seasonally in the Rewa River MPA, Fiji.20 (remaining in a particular ● Philopatry (repeatedly Reef manta rays form regular feeding area) Caribbean reef sharks are returning to a particular area) aggregations in Komodo Marine Park, long-term residents of Glovers Nurse sharks seasonally return Indonesia.21 Whale sharks aggregate Reef Marine Reserve, Belize.16 to breed in the Dry Tortugas in their hundreds every summer to Juvenile sharptooth lemon National Park, Florida, USA.19 feed in the Yucatan Peninsula Whale sharks remain within Mangrove Shark Biosphere Reserve, Mexico.22 9 MPA Guide | Sharks and Rays 2019
SECTION 1 MPAS OFFER VARYING LEVELS OF PROTECTION TO INSHORE REEF SPECIES AND ALSO TO WIDE- RANGING SPECIES THAT REGULARLY AND PREDICTABLY USE A PARTICULAR AREA KEY FEATURES OF © NASA EFFECTIVE SHARK AND RAY MPAS ● Isolated – separated from fished areas by habitat boundaries such as depth. The area doesn’t have to be remote – it could comprise reefs separated by deep water that reef sharks and rays do not frequently cross.23 ● Old age – long-term protection. Time is needed for benefits to accrue. This is particularly important for many shark and ray species, which are long-lived, mature late and have few young – as such, their populations are slow to rebuild. ● No-take or reduced fishing pressure – decreased shark and ray mortality helps reduce population decline and can help depleted populations rebuild. ● High-value habitat – nursery areas (for both juvenile feeding and protection from predators),24 breeding areas and feeding areas for a variety of life stages are particularly Individual reefs separated by deep water. Great Barrier Reef, Australia. Satellite valuable habitats. image courtesy of NASA 10 MPA Guide | Sharks and Rays 2019
MPAs operate most effectively NON-TARGETED TAKE when they combine spatial protection and complementary Sharks and rays may be captured while fishing for other species. They are not fisheries management measures being targeted but are still caught, becoming ‘non-targeted take’ or ‘bycatch’. to reduce mortality. Even if they’re required to be released the animals may be dead when brought to the fishing boat, or die soon after release – non-targeted take mortality is a serious threat to many shark and ray populations worldwide. SEE SECTION 4 MPA SIZE © Hélène Petit / WWF If well designed, all sizes of MPAs can be effective for sharks and rays: ● Large shark and ray MPAs (>100–100,000km2)25 offer protection of a wide range of habitat types used by many shark species at different life stages; protect pelagic sharks whose home ranges extend beyond coastal areas of most MPAs; and encompass a mosaic of ecologically connected habitats beneficial for wide-ranging sharks. ● Small shark and ray MPAs (
SECTION 2 EFFECTIVE MPA MANAGEMENT ● Shark and ray MPA characteristics to enable optimum management ● Good governance and effective management ● Solutions to common management issues
SECTION 2 © Beautiful Destinations EFFECTIVE MPA MANAGEMENT An effective shark and ray GOOD GOVERNANCE30 n Adaptive management MPA will have these essential framework that allows n Clearly defined, legitimate, characteristics:28 performance monitoring equitable and functional and flexible governance, n W ell-defined goals and objectives governance arrangements, with capacity to incorporate n Suitable size, location and design including the political will to improvements and maximize to deliver goals implement the MPA. Transparent effectiveness anagement plan to reach goals decision-making processes n M n Functioning legislative and n Clearly defined, fairly agreed and and clear responsibilities for institutional frameworks implementation legislated boundaries n Permitted extractive activities n Fairly represents and addresses n Support from key local (if any) well managed and stakeholders, particularly fishers the needs of society, rights- regulated n Resources and capacity for holders and stakeholders. n Adequate financial resources implementation. and capacity, including EFFECTIVE personnel This requires good governance and MANAGEMENT31 n Effective and appropriate effective management, usually best compliance investment n A management plan or achieved through a combination equivalent, with a periodic review n Communications strategy to of top-down and bottom-up inform stakeholders, build and amendment process for approaches with community trust and ownership, increase updating objectives, conservation involvement.29 participation. targets and management MANAGEMENT ISSUES AND SOLUTIONS Every shark and ray MPA is unique, but key management issues are common across the board. The most frequent are discussed below. INSUFFICIENT When a shark and ray MPA is designated, particularly at a large scale, it is essential that RESOURCES enough resources are committed for effective management. If not, there’s a risk that it will simply be a ‘paper park’ that fails to properly restrict access and exploitation, or reduce threats.32 Financial resources and technical capacity are both needed for management, monitoring and enforcement.33 Many shark and ray MPAs are in developing countries,34 and external assistance may be required with resources and capacity-building, both initially and on an ongoing basis. This assistance needs to be coordinated with local communities and MPA users, to ensure the support of key local stakeholders, particularly fishers. Buy-in from these groups and others such as tourism operators can also strengthen monitoring and enforcement, especially in remote areas. 13 MPA Guide | Sharks and Rays 2019
SECTION 2 © Antonio Busiello / WWF-US Caribbean reef shark (Carcharhinus perezi) with hook. Roatan, Bay Islands, Honduras. INADEQUATE This is a major issue in some existing shark and ray MPAs, with illegal fishing ENFORCEMENT reported in the Marshall Islands, Palau and Honduras.35 Surveillance is often restricted to patrol boats and fisheries staff, and logistics can mean that response times to reported illegal activities are slow. However, improving technology and decreasing costs for remote surveillance – eg using satellite data and drones36 – could prove useful for enforcement, particularly in large shark and ray MPAs. SEE SECTION 5 14 MPA Guide | Sharks and Rays 2019
POOR PLANNING Despite a prohibition on such activities, inadequate planning has led to continued trade in shark products and sometimes targeted capture within some shark and ray MPAs. In the Maldives shark and ray MPA, cross-institutional arrangements weren’t in place when the ban on shark fishing and trade was abruptly announced, and legislative conflicts meant that trade of shark products was not regulated. There was no formal stakeholder consultation, and little provision for alternative livelihoods for the shark fishers. As a result, and with a lack of education and awareness, many fishers continued shark fishing after the ban.37 Cross-institutional alignment, stakeholder engagement, education, communication and awareness are all essential in planning effective MPAs. Consideration of alternative income sources and livelihoods is important to engage public support.38 Sometimes shark tourism has the potential to generate an alternative non-consumptive revenue stream for the local economy – but not all fishers can easily adapt to such a major change in their way of life, and their needs must be carefully considered and managed.39 FISHING MORTALITY The most effective way of reducing shark and ray mortality is for MPAs to have strictly enforced no-take areas – however, it’s not always practical or socioeconomically and culturally acceptable to completely prohibit fishing, particularly across large areas and in developing countries that depend on marine resources for economic and food security.40 A spatial ban on target shark fishing and trade in shark products is a more tolerable solution in such locations, and should still reduce mortality levels. It’s also feasible to work with the fishing industry and regulators to change fishing practices and gears within MPAs to reduce shark and ray bycatch: this has been an ongoing process in tuna fisheries in the Pacific and other regions,41 although it’s essential that results are monitored to determine how far the threat has been reduced.42 Measures and methods which can reduce shark and ray bycatch mortality include:43 n A ban on wire leaders on tuna longlines and other line fishing gears n U se of circle hooks instead of J-hooks n T rials of permanent magnets, rare earth metals and other electrical measures to reduce shark and ray attraction to baited hooks n T rials of LED lights on gill-nets (see https://sharks.panda.org/stories-from-the-field/ seeing-the-light-in-reducing-wildlife-bycatch) n B est-practice at-vessel handling and release methods n M anagement/retrieval of abandoned fishing gear n F ish aggregation device (FAD) design to eliminate shark entanglement n C hanged night/day setting depending on species behaviour. SHARK AND RAY Shark and ray MPAs can’t always completely protect species from the threat of MOVEMENT BEYOND MPA fishing mortality, because animals often move beyond the MPA boundaries.44 Greater protection and reduction of fishing mortality requires complementary strategies such as ecosystem-based management approaches or fisheries management outside the MPA.45 15 MPA Guide | Sharks and Rays 2019
SECTION 3 SPATIAL FISHERIES MEASURES ● Some shark and ray MPAs are based on fishery management tools – from gear restrictions to closures – within specified areas ● Improved conservation outcomes can be achieved by combining spatial protection and fishery management tools Blacktip reef shark (Carcharhinus melanopterus) hunting at night,Yap, Federated States of Micronesia
SECTION 3 © Simon Lorenz / WWF-Hong Kong SPATIAL FISHERIES MEASURES Spatial protection alone may Some large-scale MPAS – such as the fishing industry, regulatory not be enough to reduce Australia’s Great Barrier Reef Marine agencies and RFMOs. shark mortality to levels Park – integrate a range of fisheries which allow population management measures. Multiple Fishery management measures applied rebuilding, so additional zones ranging from no-take to general in a spatially defined area haven’t regulation and reduction of use exist alongside fisheries effort traditionally been viewed as a type of fishing effort can enhance controls, gear restrictions and size and MPA, but this is changing. The ‘other catch limits to manage and conserve effective area-based conservation conservation outcomes.46 biodiversity (including sharks and rays) measures’ acknowledged in the Aichi Fisheries management and across a large area.47 Such planning Biodiversity Target 11 have a new spatial protection are certainly needs to be carried out in cooperation definition which now includes ‘area-based not mutually exclusive. with relevant stakeholders including fisheries management measures’.48 IUCN DEFINITION: MARINE PROTECTED AREA “A clearly defined geographical space, recognized, dedicated, and managed, through legal or other effective means, to achieve the long- term conservation of nature with associated ecosystem services and cultural values.” Although the IUCN’s widely adopted definition requires an MPA’s primary objective to be conservation, this excludes other types of spatial protection which can also contribute but which have different primary aims – such as area-based fisheries management measures and areas designated under marine spatial planning processes. GEAR RESTRICTIONS © Simon Lorenz / WWF-Hong Kong Fishing gear restrictions in a spatially defined area can provide conservation benefits to sharks and rays, but today MPAs are largely based only on spatial protection. In some regions spatial gear restrictions may be more socially acceptable than complete spatial closures, for example among small-scale fishers whose traditional fishing grounds are coming Silvertip shark (Carcharhinus albimarginatus), Chuuk, Federated States of Micronesia under pressure with increased fishing effort and reduced catches. continues. Many Pacific island countries leaders on tuna longlines, shark and ray with large shark and ray MPAs depend bycatch mortality is reduced. This gear Similarly, gear restrictions within shark economically on commercial tuna restriction is in force in the Marshall and ray MPAs can reduce bycatch fishing, so are in no position to ban Islands, Cook Islands and the Federated mortality while commercial fishing it – but by, for example, banning wire States of Micronesia.49 17 MPA Guide | Sharks and Rays 2019
SECTION 3 SUCCESSFUL GEAR RESTRICTIONS © Jürgen Freund / WWF Whaler sharks (Carcharhinids) benefit from fisheries management measures in a number of tropical MPAS: their biomass has been found to increase in response to restrictions on all fishing gear except for hook and line.50 © Brian J. Skerry / WWF Towed bottom-fishing gear has been prohibited in a 340km2 area on the south coast of the UK since 1978. Both the spotted skate and smalleyed skate have heavier individuals within the restricted gear area, the benefits of the refuge resulting from its coverage of suitable habitat combined with the limited movement of the rays.51 © Simon Buxton / WWF A permanent spatial ban on shark longline and dropline gear is in place in Western Australia. This was implemented in 1993 to protect breeding stocks of large whaler shark species, the sandbar shark and dusky shark.52 Both are important to fisheries, but the gear closure area provides them with a spatial breeding refuge.53 SPATIAL FISHERY bycatch levels, while minimizing n Some pelagic species taken as loss of fishery yield.54 bycatch in tuna fisheries – such as CLOSURES silky sharks, shortfin mako, blue n Seasonal fishery closures in Fixed area seasonal fishery closures shark and great hammerhead fixed areas have been proposed have been suggested to conserve – have been shown to occupy to protect the Endangered some varied species of sharks and predictable areas, or ‘habitat speartooth shark in northern rays: hotspots’.56 Spatial, seasonal Australia. This species migrates fishery closures in these hotspots n A three-year seasonal spatial seasonally, so the proposed could lessen bycatch, although closure was modelled as an closures aim to protect its targeted take would likely be effective way of ensuring most frequently used seasonal reduced too – hence to date no recovery of a thornback skate habitats while maximizing open spatial closures are known to population threatened by high areas for fisheries.55 have been introduced by any 18 MPA Guide | Sharks and Rays 2019
tuna RFMOs. However, with silky sharks there are areas of SUCCESSFUL SPATIAL CLOSURES persistent high non-targeted take of small sharks that are © Boris Pamikova / Shutterstock spatially distinct from high tuna Since 2007, a network of catch areas. These areas could spatial closures has been be appropriate for seasonal designated within a fishery protection, reducing non-targeted in eastern and southern pelagic shark take with the least Australia. This is enabling the loss of targeted tuna catch. recovery of two gulper shark species – Harrisson’s dogfish spatial closure to trawl fishing n A and southern dogfish – both was proposed in Costa Rica to of which were significantly a depth of 100m in an area depleted by fishing. The where fishing grounds overlap closures, implemented © Rudolf Svenson / WWF with habitat for threatened through legislation, sharks and rays. It could be encompass the species’ reasonably enforced through movement within their home the use of the Automatic ranges. Biomass declines have Identification System (AIS) halted, although recovery is vessel tracking system, which is likely to take decades due to a cost-effective solution.57 This the species’ longevity and low later led to a more widespread productivity.58 ban on trawling in Costa Rica. © Brent Stirton / Getty Images / WWF-UK Documenting MPAs and WWF projects in Tanzania, East Africa 19 MPA Guide | Sharks and Rays 2019
SECTION 4 DEFINING GOALS AND OBJECTIVES FOR SHARK AND RAY MPAS ● How to define MPA goals and objectives ● How multiple-zone MPAs help sharks and rays ● Remember the rays! Waisomo villagers prepare to drop anchor for a buoy marking Fiji's first marine protected area
SECTION 4 © Meg Gawler / WWF DEFINING GOALS AND OBJECTIVES FOR SHARK AND RAY MPAS Can other relevant activities be There are a range of reasons for protecting sharks and rays, regulated? Is inshore or offshore and these will influence the nature of the protection that’s put protection more appropriate? in place. Broadly speaking, MPA objectives can be grouped into n What resources are available? three main categories:59 COMMON AIMS The central conservation purpose of spatial management is to maintain viable populations of sharks and rays in their natural surroundings.60 A variety of goals and objectives can address this overall aim in shark and ray MPAs: ECOLOGICAL ECONOMIC SOCIAL AND n Assess and protect from key threats Protect Safeguard human CULTURAL – overfishing, habitat loss and climate change biodiversity, habitats livelihoods and fishery Promote tourism, n Restore and recover depleted and threatened species sustainability education and research populations – reduce shark mortality, protect critical habitat Conserve critical habitats, migration Clearly defining and stating goals and REALISTIC OBJECTIVES: n corridors and critical life stages objectives is an essential first step in creating and managing an MPA. This KEY QUESTIONS n Conserve threatened species or enables focused design, assessment The objectives must be realistic to be subsets of species of effectiveness, and determination effective – and the resources needed n Protect biodiversity and ecosystem of success. to achieve them must be available. health, benefiting multiple species This means being clear on some basic n Protect biodiversity hotspots, questions: prioritizing areas with high EFFECTIVENESS concentrations of endemic species The ability n What shark and ray species need threatened by habitat loss61 and capacity to be protected? Are they inshore n Protect evolutionary distinctness, coastal species, or offshore open- prioritizing irreplaceable species with of an MPA to water species? few close relatives62 accomplish n Ensure sustainability of sharks and its goals n Which fisheries in the area catch rays caught in targeted fisheries and/ sharks and rays? Do people rely on or as non-targeted take SUCCESS them for income or food? Do other n Reduce mortality – to enable human activities (e.g. oil and gas recovery to sustainable levels The extraction) affect sharks and rays? n Improve socioeconomic benefits accomplishment – capitalize on shark and ray of an MPA’s n Which spatial and fisheries measures contribution to cultural, economic goals most effectively minimize threats? and tourism values. 21 MPA Guide | Sharks and Rays 2019
SECTION 4 All these objectives can be enacted at a local, regional and national level. Some contribute directly to higher-level shark and ray policies and conventions, including: International and National Plans of Action The Memorandum of Understanding on Conservation of Migratory Sharks The Convention on Biological Diversity (Aichi Targets 11 and 12) The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) GOALS AND OBJECTIVES Protect sharks and the ecosystem they support…shelter over 100 Western Pacific shark and ray species threatened or near MPA GOALS threatened with extinction…maintain One key question is whether the integrity of our marine ecosystem.” MPA aims to protect all sharks and Palau shark and ray MPA rays in its spatial area, or to focus on a particular threatened species: A refuge for the protection and conservation SINGLE SPECIES of marine mammals and sharks… May be more relevant for highly threatened species such as sawfish. Appropriate measures will be taken to Species-based conservation ensure protection of sharks and their targets are more likely to ensure critical species-specific habitat habitats from the negative impacts of human requirements are addressed.63 activities, whether direct or indirect, actual MULTIPLE SPECIES or potential.” Shark and ray community species Dutch Caribbean shark and ray MPA may respond differently to the same threat depending on their life CASE STUDY: GLOVERS REEF MARINE RESERVE history traits, such as the size of The Glovers Reef Marine Reserve (GRMR) in Belize is a good example of an their home range or the speed of effective general MPA which has achieved success for sharks in line with its recovery once protected.64 Effective clearly stated goals. The Caribbean reef shark is one of the species targeted protection of multiple species for conservation in the GRMR’s management plan,66 and long-term monitoring may increase the conservation over 13 years indicates that populations have remained stable with no contribution of an MPA.65 apparent changes in population size or structure.67 A high proportion of the To decide on the most appropriate sharks are resident, and all life stages are present across a range of habitats. approach, identify the shark and Caribbean reef sharks are more abundant within the GRMR than in fished ray species and life stages that reefs outside its boundaries. are to be conserved, along with the critical habitat(s) required by The MPA’s success is attributed to a combination of its large size, remote the species in question. Then use location, old age, active enforcement regime, and a multi-zoned approach this information to determine where a large no-take zone with diverse and connected habitats is optimal locations where an surrounded by larger zones with regulated fishing that includes gear MPA could be placed to achieve restrictions.68 Research and monitoring along with community participation conservation goals. also contribute to the MPA’s effectiveness. 22 MPA Guide | Sharks and Rays 2019
MULTIPLE ZONED MPA TE L E ON E Z NO - O M P E US C MULTI-USE ZONE NO-TAKE AREA LAND BUFFER ZONE MULTIPLE ZONES its protection of a wider range of habitat RAYS types contributes to conservation of The multiple zone approach incorporates Rays receive less attention than sharks, different shark species and life stages.70 multiple objectives into a single MPA. A yet they’re currently more threatened. good example is Australia’s Great Barrier The most threatened species include Reef Marine Park, which encompasses IUCN PROTECTED sawfishes, wedgefishes, stingrays and a wide range of aims across different areas, from strict biodiversity protection AREA MANAGEMENT guitarfishes.72 Some of the large shark and ray MPAs include ray protection in to sustainable resource management.69 CATEGORIES their regulations, including in the Dutch The zones – based on four of the six 1. Strict nature reserve and Caribbean, the British Virgin Islands, IUCN protected area management wilderness area the Cook Islands, New Caledonia and categories – are like different types of II. National park the Maldives.73 Rays are not, however, MPAs with varying levels of protection, III. Natural monument or feature included in the regulations of large which work together to form a network IV. Habitat/species management MPAs in the Bahamas, Honduras and within one larger MPA. area the Marshall Islands. V. Protected landscape or seascape The multiple zone MPA approach offers VI. Protected areas with sustainable The first nationwide MPA created protection to mobile shark species by use of natural resources71 specifically for ray conservation was reducing their exposure to fisheries, while announced for Belize in October 2017.74 23 MPA Guide | Sharks and Rays 2019
SECTION 5 KEY INFORMATION REQUIRED FOR PLANNING SHARK AND RAY MPAS ●E ffective spatial protection for sharks and rays depends on knowledge of their movement, biology and habitat use75 ●T he conservation contribution of MPAs can be increased by focusing on biodiversity hotspots and threatened species ● I nformation on socioeconomic factors is critical to the ecological success of MPAs76 The Glovers Reef Marine Reserve in Belize, a good example of an effective MPA for sharks.
SECTION 5 © Beautiful Destinations SPATIAL PROTECTION MOVEMENT Source: V. Udyawer unpublished data Australian Institute of Marine Science Movement of sharks and rays is the AVERAGE HOME RANGE WHALE SHARK main type of information needed when considering spatial protection – knowledge of movement patterns BLACKTIP and life stages will determine where REEF SHARK an MPA should be located, and how BLUESPOTTED large an area it should cover, in FANTAIL RAY order to best protect mobile species from fishing and other threats.77 In recent decades acoustic and satellite 0.44 km2 telemetry, as well as conventional tagging, have provided a large amount 316 km2 of information on a wide variety of shark and ray species’ movements, 74,000 km2 some specifically in relation to MPAs.78 There’s a growing understanding of: n The type, scale and timing of Different species have home ranges of different sizes movement patterns n Home range size n Site fidelity n Connectivity distribution and individual movements. BIOLOGY AND These models use environmental n Critical habitat requirements. characteristics from the habitats of ECOLOGY For futher infrmation see Rapid tagged animals to find other similar The biology and ecology of sharks Assessment Toolkit for Sharks and Rays areas of potential species occurrence.80 and rays partly drive their movement patterns. Key aspects include Much of this is available via internet For example: reproduction, feeding and migration searches on a shark or ray species and n Large-scale migration telemetry data – these are linked to site fidelity, movement – and even if information on was used in a habitat selectivity repeated use of critical habitats, a particular species or group of species is model to confirm that a network and ecological connectivity between not available, data from similar species or of MPAs on Australia’s west coast habitats. groups could be used as a proxy source.79 provides important habitat and n A good starting point is www.shark-references.com protection to whale sharks. The data also revealed other large areas of CRITICAL HABITAT n Detailed species-specific movement MPAs are often criticized as being suitable habitat in the wider region data is available at too small to provide effective that could become priority areas for https://rossdwyer.shinyapps.io/ protection to highly mobile, wide- whale shark conservation in future.81 sharkray_mpa ranging shark and ray species. n A species-distribution model was used to project the probability of the However, protection of shark and If the area proposed for protection is presence of Critically Endangered ray habitats critical to life history larger than the area for which tagging or telemetry information is available, angelsharks in the coastal waters (breeding, nursery and feeding movement data models can project of the Canary Islands, providing areas; migratory routes) contributes additional spatial planning information key information for the design of to the conservation of some species on habitat selectivity, species effective spatial protected areas.82 and populations.84 25 MPA Guide | Sharks and Rays 2019
SECTION 5 © Jürgen Freund / WWF Knowledge of migratory movements should be incorporated into existing and future MPAs for a wide variety of species, including the whale shark. Many shark species segregate by closures to protect whaler sharks94 aggregation area has been discovered size and sex, with mature females, n Western Australia – spatial fishery further east along the peninsula:104 juveniles and new-borns residing in closures to protect southern dogfish adaptive management would provide different habitats at times.85 Juveniles and whiskery sharks.95 a mechanism to act on this new and new-borns show site fidelity information. to shallow, inshore habitats, which Other species that show breeding site provide them with feeding grounds fidelity include the blacktip reef shark,96 LIMITED MOVEMENT and shelter from predators.86 Some bull shark,97 grey nurse shark,98 Port Some species – particularly smaller general MPAs around the world have Jackson shark,99 lemon shark100 and skates and rays, and some smaller shown that they can offer significant smooth stingrays.101 sharks – show limited movement protection to these young animals, throughout their lives. Information on for species including grey reef shark,87 Site fidelity – for juveniles and adults the presence of these types of species pigeye shark,88 grey smoothhound,89 alike – is also related to the availability in an area can show if spatial protection lemon shark,90 sharptooth lemon of prey. This can cause aggregations of their habitat will be effective. shark,91 Caribbean reef shark, blacktip of animals (whale sharks and manta Examples of these species include: shark, spinner shark, milk shark, nurse rays are known to aggregate for n The nervous shark – inhabits shark and southern stingray.92 feeding) which may make species more nearshore, shallow waters105 vulnerable to fishing mortality.102 Spatial n The epaulette shark and Pacific Some shark and ray species repeatedly protection can be used to reduce angelshark (and others) – prefer return to the same areas, often for mortality where these aggregations complex bottom habitats106 breeding. This breeding site fidelity has are predictable – the Whale Shark n T he deepwater Kermadac spiny been used in a number of cases as the Biosphere Reserve on Mexico’s dogfish – protected in the Kermadac basis for shark conservation: Yucatan Peninsula, for example, was Islands Marine Reserve, which n Dry Tortugas, Florida – seasonal designated specifically to protect encompasses most of its known closures to protect nurse sharks93 whale sharks aggregating to feed.103 distribution.107 n Western Australia – spatial gear Since the designation, another feeding 26 MPA Guide | Sharks and Rays 2019
MIGRATORY ROUTES n Silky sharks and scalloped hammerheads OCEANIC MPAS migrating between the Galapagos Migratory routes are important Many shark and ray MPAs include Marine Reserve and the Cocos Island habitats for a range of sharks and rays. open ocean areas where highly mobile National Park could be protected by Increasing information is available on species such as the oceanic whitetip a migratory corridor MPA.120 the migratory movements of a wide shark occur: if oceanic MPAs are variety of species,108 including: established and their regulations are ● Whale sharks109 ONLINE RESOURCE respected, then such species will be ● Deepwater leafscale gulper sharks 110 protected. The proposed Galapagos- ● Bull sharks111 MigraVia Cocos migratory corridor (see above) ● White sharks112 For more than a decade, MigraVia would essentially be an oceanic MPA. ● Reef manta rays113 has been generating information ● Silky sharks114 on the movement of migratory Some pelagic sharks – eg shortfin ● Scalloped hammerheads.115 species in the Eastern Pacific. mako, blue shark, great hammerhead You can find out more at http:// – occupy habitat hotspots which These and other studies recommend that migramar.org/hi/en/migravia-2/ vary according to seasonally shifting knowledge of migratory movements ocean temperatures and primary should be incorporated into existing productivity. Dynamic spatial and and future MPAs to increase protection, temporal closures may be more particularly for threatened species.116 appropriate than fixed measures to protect them, leaving room for ECOLOGICAL greater management flexibility. AND HABITAT In the case of the tuna industry, where CONNECTIVITY non-targeted sharks and rays are also Movement of sharks and rays taken, although dynamic closures may between habitats can be essential have economic consequences for the for activities such as feeding and target species industry, they would breeding. It can be challenging to provide protection to wide-ranging MPA NETWORKS deliver a conservation benefit to shark and rays. Dynamic spatial closures adult sharks and rays and species A network of ecologically of this kind have been successfully that don’t show site fidelity, but connected MPAs can enable habitat implemented to limit the catch of non- it is still possible in some cases connectivity – and reduce exposure target species in an Australian longline to include ecological connectivity to fisheries – across a wide area. tuna fishery.121 of habitats in spatial design to improve population viability and © WWF-Indonesia / Amkieltiela conservation outcomes.117 Sometimes this movement occurs on a scale that enables protection of the adults. For example: n Silvertip shark and large male grey reef shark protection could include closely spaced reef habitats (
SECTION 5 CONSERVATION CONTRIBUTION A biodiversity hotspot is often face the highest risk of extinction – in EVOLUTIONARY defined as an area with a high most cases this matches the species concentration of endemic species most threatened by overfishing. DISTINCTIVENESS threatened by habitat loss;122 There’s a general consensus that all although it can also signify an area The most threatened sharks and elements of biodiversity should be of general species richness (not rays tend to be large-bodied, conserved, including evolutionary solely endemic) where habitat loss shallow-water species that are information.126 The ‘evolutionary may not be an issue. most accessible to fisheries. The distinctiveness’ (ED) concept is that most threatened family of all is species on the longest evolutionary the sawfishes, with other mainly branches represent a greater degree of inshore families of large rays also evolution, are more distinct, and have highly threatened – wedgefishes, few close relatives: their loss would guitarfishes, sleeper rays and mean a disproportionately large loss of stingrays. Angel sharks and thresher evolutionary information than in the case sharks are also at great risk.125 If of more recently evolved species with these families can be included in the many close relatives. With this in mind, design of an MPA, its conservation ED may be useful to consider when contribution will be increased. setting MPA conservation priorities.127 ENDEMIC SPECIES EDGE SPECIES only exist in one geographical area Aichi Target 11 of the Convention on Biological Diversity aims to preserve areas of importance for taxonomic biodiversity.123 In the case of sharks and rays, with more than 1,100 species globally, a prioritization of biodiversity hotspots is needed. © Shutterstock / Andrea © LuisMiguelEstevez / © Wild Wonders of Europe / There are biodiversity hotspots for Izzotti / WWF Shutterstock Staffan Widstrand / WWF sharks and rays in nearly all waters of the countries where they’re fished The Edge of Existence programme ( www.edgeofexistence.org) lists most intensively.124 Finding out the top 50 shark and ray species with the highest ED and most threatened the number of species in an area, conservation status. The highest ranked EDGE shark and ray species are and whether they’re endemic or sawfishes, angelsharks and guitarfishes. threatened, helps inform how an MPA can make a contribution to To maximize the conservation regions as prime locations for shark and biodiversity protection. contribution of an MPA, it’s usually best ray conservation. The regions are: to focus on a combination of these ● Southwest Pacific Ocean THREATENED SPECIES hotspot biodiversity metrics – endemics, ● Northwest Pacific Ocean The IUCN Red List of Threatened species richness and ED. A recent ● Southwest Indian Ocean Species ( www.iucnredlist.org) study128 examines these metrics to ● Western Africa identifies which shark and ray species identify 21 countries across five hotspot ● Southwest Atlantic Ocean. 28 MPA Guide | Sharks and Rays 2019
SOCIOECONOMIC FACTORS ● People must be included in Community stakeholders should be In developing countries, community conservation plans engaged from the initial planning governance of MPAs is common. ● Build up social capital and equity stages and through the design and It’s particularly important to explore ● Sharks and rays may contribute management process, since the how to build social capital with to food security and income MPA will regulate and modify their communities, especially trust and ● MPAs need to balance behaviour.130 It’s particularly important transparency in local leadership; protection with economic to understand how local people and long-term support and positive and subsistence needs view the MPA – unless they perceive outcomes will likely depend on benefits, their support is less likely.131 an equitable distribution of MPA benefits.136 Local and traditional WORKING WITH Within communities there may also knowledge may assist in design and COMMUNITIES be different perceptions, depending planning of a shark and ray MPA, on the roles and skills of the people particularly if data is lacking. concerned: for example, some fishers may not feel able to adapt to the Socioeconomic data on communities loss of a fishing way of life, and may affected by MPAs is crucial. It can feel marginalized from the tourist be spatial – such as tenure area, activities replacing their traditional subsistence and artisanal fishing living.132 Social inequity of this kind grounds; or non-spatial – such can cause conflict,133 and needs to as education, livelihood options, be avoided – it’s essential to engage material assets, and perception with all stakeholders to build social of MPAs. Information on all of licence (trust, respect, support). these areas was gathered to create multiple use MPAs in Raja If a proposed MPA will reduce Ampat, Indonesia, which were later income or food security in the local incorporated into the Raja Ampat community, alternative income Shark Sanctuary.137 Stakeholders sources, livelihood options and were given the opportunity to WWF has produced a fair compensation should all be review the draft zoning plans to detailed guide to shark and considered. So too should people’s produce final plans: these both ray tourism, which includes capacity for resilience – their ability satisfied guidelines for resilient MPA guidance on building strong to cope with and adapt to external design, and were supported by the relationships with local change. This is likely to vary between community and government.138 communities. The guide individuals and demographic groups.134 Stakeholder partnerships within is available for free at Socioeconomic and cultural shark and ray MPAs are useful to sharks.panda.org/tools- considerations in MPA planning are promote good fishing practices, publications/tourism-guide likely to vary between developed to gather catch and release and developing countries. In a few information, and to increase STAKEHOLDER of the large shark and ray MPAs – the value of sustainable catches ENGAGEMENT specifically Palau, the Marshall Islands and the British Virgin Islands – the through certification. Direct stakeholder engagement can To achieve effective conservation needs of local communities have also play a critical role in adaptive outcomes in an MPA, the social and been considered and incorporated management, particularly in economic needs of the people it into the regulations, which allow for light of the increasing effects of affects must be taken into account.129 subsistence shark fishing.135 climate change. 29 MPA Guide | Sharks and Rays 2019
SECTION 5 COMPLIANCE AND of a fishing community who’ll apply positive social pressure on their peers ENFORCEMENT to comply; or to build up a sense of The ecological success of MPAs depends stewardship in maintaining shark and heavily on people complying with their ray resources for the community.145 regulations.140 Stronger monitoring and enforcement are known to improve Introducing positive incentives to MPA effectiveness, but these can be change people’s perceptions may challenging and expensive, particularly also achieve compliance more in larger MPAs.141 cost-effectively than monitoring and enforcement.146 Understanding Technology can help. Access to how to apply these incentives can WHO HOLDS A satellite data, vessel monitoring be valuable, whether that involves STAKE IN AN MPA? systems (VMS) or automatic users participating in management Stakeholders can include identification systems (AIS) can all decisions, promotion and education many groups with a vested improve surveillance capacity. Some about the benefits and regulations of interest in an MPA – initiatives that use VMS and AIS, such MPAs, or the promotion of traditional including local community as Global Fishing Watch, provide knowledge.147 Communities can also information in almost real time.142 be engaged to assist with monitoring groups and traditional owners, the fishing industry, and enforcement through education The ability to enforce regulations will and outreach, and with the environmental NGOs, ethical depend on considerations like the development of community-derived investment funds, financial number and capacity of patrol boats, regulations.148 institutions, governments fisheries and MPA staff: assessing and others. and prioritizing these resources Compliance in MPAs is stronger efficiently is important.143 when engaged and empowered fishers and local communities In some circumstances, promoting STAKEHOLDER voluntary compliance may reduce work together with administrators, researchers and NGOs in a co- AWARENESS the need for strict enforcement. management scheme. In areas where AND COMMUNITY This involves focusing on people’s tourism operations regularly occur, EDUCATION behaviour, perceptions and these too can assist in monitoring. motivations; all of which can be In some cases – such as at Fiji’s Raising awareness of the value influenced by social and personal Shark Reef and at Monad Shoal in of protecting sharks and rays – norms. Understanding these norms the Philippines – tourism operators and the role of MPAs in doing can reveal routes towards behaviour have some limited enforcement so – should be an integral part of change: for example, it may be powers, reducing the burden on local MPA planning and management. possible to involve trusted members authorities. In addition, stakeholders need to understand the structure of the MPA’s design and governance, GOVERNANCE and how it will impact them and their community. Complex spatial [Governance is defined as] who makes planning processes may also need to be explained. Ongoing decisions and how those decisions education and outreach is are made. Governance also describes essential to provide communities who has the influence, authority and with the information they require on the MPA process, as well accountability with respect to the rights as updates on monitoring and of all legitimate parties.”149 adaptive management changes.139 30 MPA Guide | Sharks and Rays 2019
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