Results 31 to 40 of about 2,528 (204)

Delineation and mapping of coastal shark habitat within a shallow lagoonal estuary.

open access: yesPLoS ONE, 2018
Estuaries function as important nursery and foraging habitats for many coastal species, including highly migratory sharks. Pamlico Sound, North Carolina, is one of the largest estuaries in the continental United States and provides a variety of potential
Charles W Bangley   +3 more
doaj   +1 more source

La pesquería de tiburones oceánicos-costeros en los litorales de Colima, Jalisco y Michoacán

open access: yesRevista de Biología Tropical, 2011
La pesquería de tiburón es una de las más importantes en el Pacífico mexicano, en la actualidad no se cuentan con los datos de la composición específica de las capturas de las diferentes flotas.
Angélica Cruz   +4 more
doaj   +2 more sources

At-vessel mortality and blood biochemical status of elasmobranchs caught in an Australian commercial longline fishery

open access: yesGlobal Ecology and Conservation, 2015
This study investigates mortality of sharks in a commercial longline fishery in Australia. To examine the rate and biological, environmental and technological factors contributing to at-vessel mortality, four setlines with 120 gangions possessing ‘hook ...
Paul A. Butcher   +4 more
doaj   +1 more source

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

open access: yesPLoS ONE, 2021
Bycatch mortality is a major factor contributing to shark population declines. Post-release mortality (PRM) is particularly difficult to quantify, limiting the accuracy of stock assessments.
Nicholas M Whitney   +5 more
doaj   +1 more source

Identification of Shark Fin Using 12S rRNA Gene Marker(利用12S rRNA基因标记鉴定鱼翅真伪) [PDF]

open access: yesShipin kexue jishu xuebao, 2017
To detect authenticity and species of 23 suspected shark fin samples. DNAs from either shark fin or shark fin derived soup were extracted, and then 12S rRNA gene of mitochondrial DNA that was special for animal species identification was amplified.
HUANG Yalin(黄娅琳)
doaj   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

open access: yesBiological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen   +15 more
wiley   +1 more source

Diet of the Blacktip Shark (Carcharhinus limbatus) in the Northwestern Gulf of Mexico

open access: yesGulf and Caribbean Research, 2020
The stomach contents of 90 Blacktip Shark (Carcharhinus limbatus) specimens caught in the northwestern Gulf of Mexico (GOM) were examined. Stomach contents were identified to the lowest possible taxon, and quantified using percent weight, percent number, percent frequency of occurrence, and percent index of relative importance (IRI).
Alewijnse, Sarah R., Wells, R. J. David
openaire   +3 more sources

Insights into the structure of grey reef shark aggregation, Carcharhinus amblyrhynchos (Bleeker, 1856), in two distinct channels of the Maldivian archipelago, Indian Ocean

open access: yesJournal of Fish Biology, EarlyView.
Abstract The grey reef shark Carcharhinus amblyrhynchos is one of the most frequently encountered reef‐associated shark species in the Maldives, yet very little is known about its local size structure or population dynamics. This study provides new insights into two aggregations of C.
Andrea Parmegiani   +7 more
wiley   +1 more source

Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic [PDF]

open access: yes, 2001
Identification problems are common for many sharks due to a general lack of meristic characteristics that are typically useful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on ...
Grace, Mark
core  

Diet of three shark species in the Ecuadorian Pacific, Carcharhinus falciformis, Carcharhinus limbatus and Nasolamia velox [PDF]

open access: yesJournal of the Marine Biological Association of the United Kingdom, 2017
We analysed the stomach contents of 69 silky sharks Carcharhinus falciformis, 44 blacktip sharks Carcharhinus limbatus and 24 whitenose sharks Nasolamia velox caught in the Ecuadorian Pacific from August 2003 to December 2004. Prey included bony fishes, elasmobranchs, molluscs, crustaceans and turtles, with bony fishes being the most important to the ...
Colombo Estupiñán-Montaño   +4 more
openaire   +1 more source

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