Video: Nearly 3500 Shark fins seized in Colombia

Age and growth estimates of the blue shark from Papua New Guinea

Preliminary age and growth estimates of the blue shark (Prionace glauca) from Papua New Guinea Sushmita Mukherji, Jonathan Smart, Brooke D’Alberto, Leontine Baje, Andrew Chin, William White, Colin A. Simpfendorfer ABSTRACT: Blue sharks (Prionace glauca) are recognised as one of five key pelagic shark species in the Western Central Pacific Ocean (WCPO) due to their

Elasmobranch microbiomes

Elasmobranch microbiomes: emerging patterns and implications for host health and ecology Cameron T. Perry, Zoe A. Pratte, Ana Clavere-Graciette, Kim B. Ritchie, Robert E. Hueter, Alisa L. Newton, G. Christopher Fischer, Elizabeth A. Dinsdale, Michael P. Doane, Krystan A. Wilkinson, Kim Bassos-Hull, Kady Lyons, Alistair D. M. Dove, Lisa A. Hoopes, Frank J. Stewart ABSTRACT:

Anti-shark device cuts likelihood of attack by two-thirds

Press Release Bond University, Queensland, Australia 22. September 2021 — — — — — — — — A surfboard-mounted shark deterrent device has been found to reduce the likelihood of bite by 66 per cent during testing off Western Australia. Scientists found the Australian-made Rpela V2 also cut shark interactions such as a nudge by

Effectiveness Against White Sharks of the Rpela Personal Shark Deterrent Device Designed for Surfers

Effectiveness Against White Sharks of the Rpela Personal Shark Deterrent Device Designed for Surfers Blount, Craig; Pygas, Dan; Lincoln Smith, Marcus P.; McPhee, Daryl P.; Bignell, Colby; and Ramsey, Ocean ABSTRACT: Many shark bites to humans, including fatalities, have involved surfers. Various personal shark deterrents are commercially available to surfers, including Rpela v2, which is

Info Sheet: Ethical Catch and Release of Sharks

ETHICAL CATCH AND RELEASE OF SHARKS PDF-DOWNLOAD

Aquarium-led landmark study finds some shark species are tougher than others when it comes to surviving catch and release

Press Release New England Aquarium 15. September 2021 — — — —- — — — BOSTON, MASS. (Sept. 15, 2021) – A new landmark study of over 300 sharks found that some species are extremely resilient to the stress of being caught and released in commercial longline fisheries while other species are much more likely

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 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

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

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

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 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, 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 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