Results 41 to 50 of about 5,644 (225)

Novel approach to studying marine fauna: using long-life remote underwater video cameras to assess occurrence and behaviour of threatened and data-deficient elasmobranch species in southern Mozambique

Frontiers in Marine Science
Understanding the behaviour and ecological role of elasmobranchs is essential for their conservation, particularly in regions harbouring threatened and data-deficient species like the Inhambane coastline in southern Mozambique, southwestern Indian Ocean.
Jule Buschmann, Jule Buschmann, Kim G. Roques, Jaime S. Davies, Jaime S. Davies, Awantha Dissanayake, Jennifer A. Keeping, Jennifer A. Keeping   +7 more
doaj   +1 more source

ELASMOBRANCHS BALANCE UREA [PDF]

Journal of Experimental Biology, 2006
![Figure][1] For most creatures, urea is a nasty toxin best got rid of, but for many elasmobranchs, it keeps them in balance with their salty environment. Yet despite this apparently amicable relationship, high tissue levels of urea still have nasty side effects on proteins.
openaire   +1 more source

No escape from microplastics: Contamination of reef manta ray feeding areas in a remote, protected archipelago

Conservation Science and Practice, EarlyView.
We found microplastic contamination of the upper water column around the Chagos Archipelago, a remote, protected archipelago in the central Indian Ocean. Key aggregation areas for reef manta rays (Mobula alfredi) were contaminated, putting them at risk of microplastic ingestion.
J. Savage, J. L. Harris, H. J. Koldewey, T. B. Letessier, M. Rowcliffe, D. Morritt   +5 more
wiley   +1 more source

Environmental factors modulate the distribution of elasmobranchs in southern Mozambique

Frontiers in Marine Science
Investigating the spatiotemporal ecology of elasmobranchs is an important precursor to their effective management. Understanding long-term patterns in the movement and habitat use of threatened species can improve management plans so that they yield ...
Calum J. G. Murie, Calum J. G. Murie, Simon P. Oliver, Simon P. Oliver, Livia Gavard, Mario Lebrato, James Brown, Andrew Lawrence   +7 more
doaj   +1 more source

Monitoring small‐scale fisheries through participatory, app‐based surveys in the tropical archipelago of São Tomé and Príncipe

Conservation Science and Practice, EarlyView.
Small Island Developing States have limited capacity to monitor Small Scale Fisheries, despite their high dependence on marine resources. Participatory monitoring of Small Scale Fisheries can fill data gaps while integrating resource users into fisheries management.
Guillermo Porriños, Philip D. Doherty, Ana Nuno, Manuel da Graça, Edson dos Santos, Sinaida Espírito Santo, Katy Walker, Albertino Santos, Márcio Guedes, Lodney Nazaré, Tiago Capela Lourenço, Luisa Madruga, Litoney Matos, Berry Mulligan, Mafalda Navas, Rita F. Ramos, Nina da Rocha, Kristian Metcalfe   +17 more
wiley   +1 more source

Thyrocalcitonin Studies in Elasmobranch Fish [PDF]

Zoologica Africana, 1969
Zoologica Africana 4(1): 95 ...
Louw, GN, Stahl, PD, Kenny, AD
openaire   +2 more sources

Mapping Mediterranean bentho‐demersal communities to better inform marine conservation

Conservation Science and Practice, EarlyView.
Marine protected areas are one of the most common conservation tools being implemented worldwide to reach conservation targets, but their implementation does not usually take the heterogeneous distribution of bentho‐demersal communities into account.
Miguel López, Morane Clavel‐Henry, Joan B. Company, Nixon Bahamón, Otso Ovaskainen   +4 more
wiley   +1 more source

Behavioral Evidence of Predator–Predator Commensalism: Cobia Track and Feed on Prey Disturbed by Southern Stingrays

Ethology, EarlyView.
We documented a novel predator–predator commensal foraging interaction between cobia (Rachycentron canadum) and a southern stingray (Hypanus americanus) in a shallow coastal habitat of Biscayne Bay, Florida. Using drone‐based observations, we recorded a 7‐min sequence in which a cobia closely tracked the stingray's movements and fed on prey disturbed ...
Julia Saltzman, John Hlavin, Christine Martin, Emily A. Yeager, Catherine C. Macdonald   +4 more
wiley   +1 more source

Location, Location, Location! Evaluating Space Use of Captive Aquatic Species—A Case Study with Elasmobranchs

Journal of Zoological and Botanical Gardens, 2022
The space use of captive animals has been reliably used as a tool to measure animal welfare in recent years. However, most analyses of space use focus primarily on terrestrial animals, with very little emphasis placed on the space use of aquatic animals.
Alexis M. Hart, Zac Reynolds, Sandra M. Troxell-Smith   +2 more
doaj   +1 more source

A Conceptual Framework and Methods for Studying the Connectivity of Fishes

Fish and Fisheries, EarlyView.
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman, Jessica A. Robichaud, Jasper McCutcheon, Michael T. Booth, Brendan Campbell, Grace A. Casselberry, Cienna R. Cooper, Bronwyn M. Gillanders, Lucas P. Griffin, Edward Hale, Luc LaRochelle, Karen J. Murchie, Mary Peacock, Reid G. Swanson, Simon D. Stewart, Ryan. J. Woodland, Daniel P. Zielinski, Steven J. Cooke, Morgan L. Piczak   +18 more
wiley   +1 more source