Publications

Info Sheet: Ethical Catch and Release of Sharks

Info Sheet: Ethical Catch and Release of Sharks

ETHICAL CATCH AND RELEASE OF SHARKS PDF-DOWNLOAD

Connecting post-release mortality to the physiological stress response of large coastal sharks in a commercial longline fishery

Connecting post-release mortality to the physiological stress response of large coastal sharks in a commercial longline fishery

Connecting post-release mortality to the physiological stress response of large coastal sharks in a commercial longline fishery Nicholas M. Whitney, Karissa O. Lear, John J. Morris, Robert E. Hueter, John K. Carlson, Heather M. Marshall ABSTRACT: Bycatch mortality is a major factor contributing to shark population declines. Post-release mortality (PRM) is particularly difficult to quantify,

Secondary predation constrains DNA-based diet reconstruction in two threatened shark species

Secondary predation constrains DNA-based diet reconstruction in two threatened shark species

Secondary predation constrains DNA-based diet reconstruction in two threatened shark species Mark de Bruyn, Matteo Barbato, Joseph D. DiBattista, Matt K. Broadhurst ABSTRACT: Increasing fishing effort, including bycatch and discard practices, are impacting marine biodiversity, particularly among slow-to-reproduce taxa such as elasmobranchs, and specifically sharks. While some fisheries involving sharks are sustainably managed, collateral mortalities

Species-specific search strategies in sympatric apex predatory sharks

Species-specific search strategies in sympatric apex predatory sharks

Comprehensive analytical approaches reveal species-specific search strategies in sympatric apex predatory sharks Hannah J. Calich, Jorge P. Rodríguez, Víctor M. Eguíluz, Neil Hammerschlag, Charitha Pattiaratchi, Carlos M. Duarte, Ana M. M. Sequeira ABSTRACT: Animals follow specific movement patterns and search strategies to maximize encounters with essential resources (e.g. prey, favourable habitat) while minimizing exposures to

The shark meat market threatens elasmobranchs in Brazil

The shark meat market threatens elasmobranchs in Brazil

Biodiversity on sale: The shark meat market threatens elasmobranchs in Brazil Marcelo Merten Cruz, Bruna Elenara Szynwelski, Thales R. Ochotorena de Freitas ABSTRACT: Elasmobranchs are apex predators that play a crucial role in marine ecosystems by regulating the dynamics of food webs, as well as connecting different trophic levels across habitats. The large-scale removal of

Length–weight relations of 46 uncommon sharks and rays in the Mediterranean Sea

Length–weight relations of 46 uncommon sharks and rays in the Mediterranean Sea

Filling in knowledge gaps: Length–weight relations of 46 uncommon sharks and rays (Elasmobranchii) in the Mediterranean Sea Athanassios C. Tsikliras, Donna Dimarchopoulou ABSTRACT: Large sharks and rays are generally understudied in the Mediterranean Sea, thus leading to a knowledge gap of basic biological characteristics that are important in fisheries management and ecosystem modeling. Out of

Evaluating artisanal fishing of globally threatened sharks and rays in the Bay of Bengal, Bangladesh

Evaluating artisanal fishing of globally threatened sharks and rays in the Bay of Bengal, Bangladesh

Evaluating artisanal fishing of globally threatened sharks and rays in the Bay of Bengal, Bangladesh Alifa Bintha Haque, Rachel D. Cavanagh, Nathalie Seddon ABSTRACT: Sharks and rays are at risk of extinction globally. This reflects low resilience to increasing fishing pressure, exacerbated by habitat loss, climate change, increasing value in a trade and inadequate information

Distribution and Abundance of Coastal Elasmobranchs in Tenerife, Canary Islands

Distribution and Abundance of Coastal Elasmobranchs in Tenerife, Canary Islands

Distribution and Abundance of Coastal Elasmobranchs in Tenerife (Canary Islands, NE Atlantic Ocean) with Emphasis on the Bull Ray, Aetomylaeus bovinus Jorge Manuel Moreno Mendoza, Silvio E. Solleliet-Ferreira, R. Riera ABSTRACT: The current status of the elasmobranchs’ populations and distribution in the Canary Islands is uncertain. Here we investigate the abundance and distribution patterns of

Behavioural response of a whale shark during the passage of a typhoon

Behavioural response of a whale shark during the passage of a typhoon

Behavioural response of a whale shark during the passage of a typhoon Itsumi Nakamura, Hiroyuki Tsuchida, Kazuki Tone, Kazuyoshi Komeyama, Akira Sasaki, Ryo Kawabe ABSTRACT: During a behavioural survey of a tagged whale shark (Rhincodon typus) conducted in 2019 in the waters off Kagoshima, Japan, a typhoon passed close to the area under surveillance. As

Numerical Abilities in Grey Bamboo Sharks and Ocellate River Stingrays

Numerical Abilities in Grey Bamboo Sharks and Ocellate River Stingrays

Counting on Numbers—Numerical Abilities in Grey Bamboo Sharks and Ocellate River Stingrays Nils Kreuter, Nele Christofzik, Carolin Niederbremer, Janik Bollé, Vera Schluessel ABSTRACT: Over the last decade, studies examining the cognitive abilities of fish have increased, using a broad range of approaches. One of the foci has been to test the ability of fish to

Overfishing drives over one-third of all sharks and rays toward a global extinction crisis

Overfishing drives over one-third of all sharks and rays toward a global extinction crisis

Overfishing drives over one-third of all sharks and rays toward a global extinction crisis Nicholas K. Dulvy, Nathan Pacoureau, Cassandra L. Rigby, Riley A. Pollom, Rima W. Jabado, David A. Ebert, Brittany Finucci, Caroline M. Pollock, Jessica Cheok, Danielle H. Derrick, Katelyn B. Herman, C. Samantha Sherman, Wade J. Van der Wright, Julia M. Lawson,

Environmental DNA reduces the phantom diversity of sharks and rays in turbid marine habitats

Environmental DNA reduces the phantom diversity of sharks and rays in turbid marine habitats

Seeing through sedimented waters: environmental DNA reduces the phantom diversity of sharks and rays in turbid marine habitats Yin Cheong Aden Ip, Jia Jin Marc Chang, Kelvin K P Lim, Zeehan Jaafar, Benjamin J Wainwright, Danwei Huang ABSTRACT: Background: Sharks and rays are some of the most threatened marine taxa due to the high levels

The Subtle Impacts of Tourist Provisioning on the Social Behavior of Tiger Sharks

The Subtle Impacts of Tourist Provisioning on the Social Behavior of Tiger Sharks

Social Network Analysis Reveals the Subtle Impacts of Tourist Provisioning on the Social Behavior of a Generalist Marine Apex Predator Jacoby David M. P., Fairbairn Bethany S., Frazier Bryan S., Gallagher Austin J., Heithaus Michael R., Cooke Steven J., Hammerschlag Neil ABSTRACT: Shark dive ecotourism is a lucrative industry in many regions around the globe.

Differential horizontal migration patterns of two male salmon sharks tagged in the Bering Sea

Differential horizontal migration patterns of two male salmon sharks tagged in the Bering Sea

Differential horizontal migration patterns of two male salmon sharks (Lamna ditropis) tagged in the Bering Sea Sabrina Garcia, Cindy A. Tribuzio, Andrew C. Seitz, Michael B. Courtney, Julie K. Nielsen, Jim M. Murphy, Dion S. Oxman ABSTRACT: Background The salmon shark (Lamna ditropis) is a widely distributed apex predator in the North Pacific Ocean. Many

Passive Prey Discrimination in Surface Predatory Behaviour of Bait-Attracted White Sharks from Gansbaai

Passive Prey Discrimination in Surface Predatory Behaviour of Bait-Attracted White Sharks from Gansbaai

Passive Prey Discrimination in Surface Predatory Behaviour of Bait-Attracted White Sharks from Gansbaai, South Africa Primo Micarelli, Federico Chieppa, Antonio Pacifico, Enrico Rabboni, Francesca Romana Reinero ABSTRACT: Between the years 2008 and 2013, six annual research expeditions were carried out at Dyer Island (Gansbaai, South Africa) to study the surface behaviour of white sharks in