shark conservation
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2021 ◽  
Vol 4 (3) ◽  
pp. 36-44
Author(s):  
Karina Massei ◽  
Carlos Alberto Isaza Valencia ◽  
Ana Carolina Assis Sampaio ◽  
Rogério dos Santos Ferreira ◽  
Christinne Costa Eloy

This interdisciplinary research has the playful art as a tool to raise awareness about the conservation of sharks and the environmental health of the Ocean, in addition to the search for the demystification of some concepts bringing to light the biological and ecological importance that this emblematic group represents for the natural balance of the Blue Planet. In the months of June and July 2018 at the visiting aquarium in Paraíba, a space for the propagation of non-formal environmental education, it was sought through the theatrical play "Swimming in Safety, a Sea of Hope" to apply the way of doing and teaching the concepts of sustainability and environmental preservation since the choice of the team, the actors and scenographic materials. Through exploratory and participant research, photographic and video records, we investigated the reactions of the audience before, during and after the play. The evaluation process was permanent in order to make constant improvements. The play tried to highlight not only information about the characteristics and importance of preserving sharks, but also the main threats such as the practice of finning, which through a plot between the pirate and the shark and the echinoderms, it was possible to explain the defence systems that each being has, all of which are important, showing that sharks are worth much more alive than dead. The expertise and performance of artistic activities such as juggling, magic and balance contributed to the success of the play. The results prove that this type of multidisciplinary experience, which promotes learning through enchantment, should be encouraged because it will certainly constitute a basis for future attitudes, especially in children, since they will feel encouraged to protect nature, according to the premises of the Decade of Oceanic Science and Ecological Restoration.


PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0253867
Author(s):  
Mireille M. M. Guillaume ◽  
Bernard Séret

Sharks have declined worldwide and remote sanctuaries are becoming crucial for shark conservation. The southwest Indian Ocean is a hotspot of both terrestrial and marine biodiversity mostly impacted by anthropogenic damage. Sharks were observed during surveys performed from April to June 2013 in the virtually pristine coral reefs around Europa Island, a remote Marine Protected Area located in the southern Mozambique Channel. Observation events comprised 67 1-hour scientific dives between 5 – 35m depth and 7 snorkeling inspections, as well as 4 dinghy-based observations in the shallow lagoon. In a period of 24 days, 475 sharks were tallied. Carcharhinus galapagensis was most encountered and contributed 20% of the abundance during diving, followed by C. albimarginatus (10%). Both species were more abundant between 11-14h, and on the exposed sides of the island. Numbers of Sphyrna lewini were highest with 370 individuals windward and leeward, mostly schooling. S. lewini aggregations in the area are hypothesized to be attracted to the seamount archipelago offering favorable conditions for deep incursions and of which Europa Island forms part. C. amblyrhynchos, Galeocerdo cuvier and S. mokarran were uncommon, while there was an additional observation of Rhincodon typus. The lagoon of Europa was a nursery ground for C. melanopterus where it was the only species present. A total of 8 species was recorded, contributing to the shark diversity of 15 species reported from Europa since 1952 in the scientific and gray literature. Overall, with the occurrence of several species of apex predators in addition to that of R. typus, large schools of S. lewini, fair numbers of reef sharks and a nursery of C. melanopterus, Europa’s sharks constitute a significant reservoir of biodiversity, which contributes to preserve the functioning of the ecosystem. Our observations highlight the relevance of Europa Island for shark conservation and the need for shark-targeted management in the EEZ of both Europa and Bassas da India.


2021 ◽  
Author(s):  
Lisa B. Whitenack ◽  
Brady L. Mickley ◽  
Julia Saltzman ◽  
Stephen M. Kajiura ◽  
Catherine C. Macdonald ◽  
...  

AbstractDespite evidence of their importance to marine ecosystems, at least 25% of all chondrichthyan species are estimated or assessed as threatened with extinction. In addition to the logistical difficulties of effectively conserving wide-ranging marine species, shark conservation is believed to have been hindered in the past by public perceptions of sharks as dangerous to humans. Shark Week is a high-profile, international programming event that has potentially enormous influence on public perceptions of sharks, shark research, shark researchers, and shark conservation. However, Shark Week has received regular criticism for poor factual accuracy, fearmongering, bias, and inaccurate representations of science and scientists. This research analyzes the content and titles of Shark Week episodes across its entire 32 years of programming to determine if there are trends in species covered, research techniques featured, expert identity, conservation messaging, type of programming, and portrayal of sharks. We analyzed titles from 272 episodes (100%) of Shark Week programming and the content of all available (201; 73.9%) episodes. Our data demonstrate that the majority of episodes are not focused on shark bites, although such shows are common and many Shark Week programs frame sharks around fear, risk, and adrenaline. While anecdotal descriptions of disproportionate attention to particular charismatic species (e.g. great whites, bull sharks, and tiger sharks) are accurate and supported by data, 79 shark species have been featured briefly at least once. Shark Week’s depictions of research and of scientists are biased towards a small set of (typically visual and expensive) research methodologies and (mostly white, mostly male) scientists, including presentation of many white male non-scientists as experts. While sharks are more often portrayed negatively than positively, limited conservation messaging does appear in 53% of episodes analyzed. Results suggest that as a whole, while Shark Week is likely contributing to the collective perception of sharks as monsters, even relatively small alterations to programming decisions could substantially improve the presentation of sharks and shark science and conservation issues.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
David S. Shiffman ◽  
Catherine C. Macdonald ◽  
S. Scott Wallace ◽  
Nicholas K. Dulvy

AbstractMany species of sharks are threatened with extinction, and there has been a longstanding debate in scientific and environmental circles over the most effective and appropriate strategy to conserve and protect them. Should we allow for sustainable fisheries exploitation of species which can withstand fishing pressure, or ban all fisheries for sharks and trade in shark products? In the developing world, exploitation of fisheries resources can be essential to food security and poverty alleviation, and global management efforts are typically focused on sustainably maximizing economic benefits. This approach aligns with traditional fisheries management and the perspectives of most surveyed scientific researchers who study sharks. However, in Europe and North America, sharks are increasingly venerated as wildlife to be preserved irrespective of conservation status, resulting in growing pressure to prohibit exploitation of sharks and trade in shark products. To understand the causes and significance of this divergence in goals, we surveyed 155 shark conservation focused environmental advocates from 78 environmental non-profits, and asked three key questions: (1) where do advocates get scientific information? (2) Does all policy-relevant scientific information reach advocates? and (3) Do advocates work towards the same policy goals identified by scientific researchers? Findings suggest many environmental advocates are aware of key scientific results and use science-based arguments in their advocacy, but a small but vocal subset of advocates report that they never read the scientific literature or speak to scientists. Engagement with science appears to be a key predictor of whether advocates support sustainable management of shark fisheries or bans on shark fishing and trade in shark products. Conservation is a normative discipline, and this analysis more clearly articulates two distinct perspectives in shark conservation. Most advocates support the same evidence-based policies as academic and government scientists, while a smaller percentage are driven more by moral and ethical beliefs and may not find scientific research relevant or persuasive. We also find possible evidence that a small group of non-profits may be misrepresenting the state of the science while claiming to use science-based arguments, a concern that has been raised by surveyed scientists about the environmental community. This analysis suggests possible alternative avenues for engaging diverse stakeholders in productive discussions about shark conservation.


Author(s):  
Hollie Booth ◽  
Dale Squires ◽  
Irfan Yulianto ◽  
Benaya Simeon ◽  
Muhsin ◽  
...  

Genes ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 1002
Author(s):  
Narkie Akua Agyeman ◽  
Carmen Blanco-Fernandez ◽  
Sophie Leonie Steinhaussen ◽  
Eva Garcia-Vazquez ◽  
Gonzalo Machado-Schiaffino

Mislabelling of fish and fish products has attracted much attention over the last decades, following public awareness of the practice of substituting high-value with low-value fish in markets, restaurants, and processed seafood. In some cases, mislabelling includes illegal, unreported, and unregulated (IUU) fishing, contributing to overexploit substitute species that are undetectable when sold under wrong names. This is the first study of DNA barcoding to assess the level of mislabelling in fish marketed in Ghana, focusing on endangered shark species. Genetic identification was obtained from 650 base pair sequences within the cytochrome c oxidase I (COI) gene. All except one of 17 shark fillets analysed were wrongly labelled as compared with none of 28 samples of small commercial pelagic fish and 14 commercial shark samples purchased in Europe. Several substitute shark species in Ghana are endangered (Carcharhinus signatus and Isurus oxyrinchus) and critically endangered (Squatina aculeata). Shark products commercialized in Europe (n = 14) did not reveal mislabelling, thus specific shark mislabelling cannot be generalized. Although based on a limited number of samples and fish markets, the results that reveal trade of endangered sharks in Ghana markets encourage Ghanaian authorities to improve controls to enforce conservation measures.


Author(s):  
Paolo Guidetti ◽  
Massimiliano Bottaro ◽  
Alessandro Ciccolella ◽  
Roberto Danovaro

2021 ◽  
Author(s):  
David S. Shiffman ◽  
Catherine Macdonald ◽  
Scott S. Wallace ◽  
Nicholas K. Dulvy

Abstract Current shark conservation and management conflicts represent an underrecognized expression of long-standing debates over whether the goal of modern conservation should be sustainable exploitation of natural resources or maximum possible preservation of wilderness and wildlife. In the developing world, exploitation of fisheries resources can be essential to food security and poverty alleviation, and management is typically focused on sustainably maximizing economic benefits. This approach aligns with traditional fisheries management and the perspectives of most surveyed scientific researchers who study sharks. However, in Europe and North America, sharks are increasingly venerated as wildlife to be preserved irrespective of conservation status, resulting in growing pressure to prohibit exploitation of sharks and trade in shark products. To understand the causes and significance of this divergence in goals, we surveyed 155 shark conservation focused environmental advocates from 78 environmental non-profits, and asked three key questions: (1) where do advocates get scientific information? (2) Does all policy-relevant scientific information reach advocates? and (3) Do advocates work towards the same policy goals identified by scientific researchers? Findings suggest many environmental advocates are aware of key scientific results and use science-based arguments in their advocacy, but a small but vocal subset of advocates report that they never read the scientific literature or speak to scientists. Engagement with science appears to be the key predictor of whether advocates support sustainable management of shark fisheries or bans on shark fishing and trade in shark products. Conservation is a normative discipline, and this analysis more clearly articulates two distinct perspectives in shark conservation. Most advocates support the same evidence-based policies as academic and government scientists, while a smaller percentage are driven more by moral and ethical beliefs, and may not find scientific research relevant or persuasive. A values-based perspective is also a valid approach to conservation, but claiming that it is a science-based approach while misrepresenting the science is problematic. This suggests possible alternative avenues for engaging diverse stakeholders in productive discussions about shark conservation.


Author(s):  
Gustavo A. Castellanos‐Galindo ◽  
Pilar Herrón ◽  
Andrés F. Navia ◽  
Hollie Booth

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