Results 41 to 50 of about 1,835 (173)

Sharks - The State of the Science [PDF]

, 2010
The biological characteristics of sharks make them particularly vulnerable to overfishing. They grow slowly, become sexually mature relatively late and produce few offspring.
Alexia C. Morgan
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Genetic Diversity and Population Structure of Squalus cf. mitsukurii (Chondrichthyes: Squalidae) Revealed by ddRAD Sequencing

Animal Genetics, Volume 57, Issue 2, April 2026.
ABSTRACT Assessing genetic structure across ocean basins is essential to understand connectivity and guide conservation in data‐deficient open‐water sharks. In this study, we examined the population genomics of Squalus cf. mitsukurii by analyzing tissue samples collected from two distant regions: California, USA (Pacific Ocean) and Pernambuco, Brazil ...
Aisni Mayumi Corrêa de Lima Adachi, Ailton Amarante Ariza, Giovana da Silva Ribeiro, Pollyana Christine Gomes Roque, Matheus Marcos Rotundo, Marcelo Vianna, Gabriela Delpiani, Sergio Matias Delpiani, Juan Martín Díaz de Astarloa, Claudio Oliveira, Fausto Foresti, Vanessa Paes da Cruz   +11 more
wiley   +1 more source

Simulated ocean acidification affects shark tooth morphology

Frontiers in Marine Science
Changing ecological factors pose a challenge to many organisms. Global changes and the associated environmental changes have major impacts on marine organisms and threaten the biodiversity of marine ecosystems.
Maximilian Baum, Timo Haussecker, Oliver Walenciak, Steffen Köhler, Christopher R. Bridges, Sebastian Fraune   +5 more
doaj   +1 more source

Fathom Magazine, v. 8, no. 2, Summer 1996 22pp :Florida sharks [PDF]

, 1996
CONTENTS. Protecting the Predators, by Jay Humphrey. Economics Create Responsible Shark Management, by Jay Humphreys. The Healing Power of Sharks, by Kelly Marie Sokol. Shark! by Jay Humphreys. Florida's Sharks. Entering the Sharks' Environment, by
Grantham, Susan, Hueter, Robert, Humphreys, Jay, Sokol, Kelly Marie   +3 more
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Diversity, Abundance and Distribution of Sharks in a Multispecies Nursery Area in the Eastern Central Atlantic

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 4, April 2026.
ABSTRACT Shark nursery habitats are priority targets for area‐based conservation as they protect key age classes that exhibit restricted area use. However, the lack of detailed, species‐specific biological and ecological data often undermines the efficacy of coastal management strategies. This study employed complementary Baited Remote Underwater Video
Adam Whiting, Francesco Garzon, Ze Luis Monteiro, Zeddy T. A. Seymour, João Lima, Cintia Lima, Sam Owen, Rachel T. Graham   +7 more
wiley   +1 more source

The Socio-Economic Value of the Shark-Diving Industry in Fiji [PDF]

, 2011
Based on a survey of divers, dive operators, resort managers, estimates business revenues from shark diving and related expenditures by area; tax revenues; and economic benefit to local ...
D. Pannell, G. M. S. Vianna, H. Sykes, J. J. Meeuwig, M. G. Meekan   +4 more
core  

The COVID-19 pandemic and the impact on the absence of diver-shark interaction on blacktip reef shark’s agonistic behavior: Morotai case

IOP Conference Series: Earth and Environmental Science, 2021
AbstractPrior to COVID-19 pandemic, Morotai waters was well known as one of the favorite destination for shark watching tourism in Indonesia. Similar to other animal sighting tourism in Indonesia, shark diving has been hit hard by the pandemic of COVID-19 and has been banned since April 2020.
D A Mukharror, R Fadli, F Ghiffari
openaire   +1 more source

Anthropogenic disturbance modifies spatial patterns of reef sharks

Journal of Applied Ecology, Volume 63, Issue 4, April 2026.
Species‐specific sensitivities mean that non‐extractive human presence can strongly reshape reef predator distributions even where fishing pressure is limited. Integrating tourism intensity and coastal development into marine spatial planning is therefore essential for reef shark conservation, and combining ecological surveys with open‐source social ...
Twan Stoffers, Jimmy van Rijn, Martin de Graaf, Hendrik V. Winter, Tadzio Y. Bervoets, Mark E. Bond, Chris C. Duinmeijer, Michael Heithaus, Matthew Needle, Georgios Papageorgiou, Jan Jaap Poos, Stijn Schep, Koen Tieskens, Leopold A. J. Nagelkerke   +13 more
wiley   +1 more source

Drivers of Daily Routines in an Ectothermic Marine Predator: Hunt Warm, Rest Warmer?

PLoS ONE, 2015
Animal daily routines represent a compromise between maximizing foraging success and optimizing physiological performance, while minimizing the risk of predation.
Yannis P Papastamatiou, Yuuki Y Watanabe, Darcy Bradley, Laura E Dee, Kevin Weng, Christopher G Lowe, Jennifer E Caselle   +6 more
doaj   +1 more source

Assessment of the Distribution and Abundance of Coastal Sharks in the U.S. Gulf of Mexico and Eastern Seaboard, 1995 and 1996 [PDF]

, 1997
During 1995 and 1996, the National Marine Fisheries Service (NMFS), conducted pilot studies to develop survey methodology and a sampling strategy for assessment of coastal shark populations in the Gulf of Mexico and western North Atlantic.
Grace , Mark, Henwood, Terry
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