Vertical space use and thermal range of the great hammerhead (Sphyrna mokarran), (Rüppell, 1837) in the western North Atlantic

Autor:	Tristan L. Guttridge, Lukas Müller, Bryan A. Keller, Mark E. Bond, R Dean. Grubbs, William Winram, Lucy A. Howey, Bryan S. Frazier, Samuel H. Gruber
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	WIMEK Oceans and Seas biotelemetry conservation Mariene Dierecologie habitat use Aquatic Science migration Marine Animal Ecology fisheries Sharks Animals Atlantic Ocean Ecology Evolution Behavior and Systematics Ecosystem
Zdroj:	Journal of Fish Biology 101 (2022) 4 Journal of Fish Biology, 101(4), 797-810
ISSN:	0022-1112
Popis:	The great hammerhead (Sphyrna mokarran) is a highly mobile, large-bodied shark primarily found in coastal-pelagic and semi-oceanic waters across a circumtropical range. It is a target or by-catch species in multiple fisheries, and as a result, rapid population declines have occurred in many regions. These declines have contributed to the species being assessed as globally critically endangered on the IUCN Red List. Although conservation and management measures have yielded promising results in some regions, such as the United States, high levels of at-vessel and post-release mortality remain a major concern to the species population recovery. This examined the vertical space use and thermal range of pop-off archival satellite–tagged S. mokarran in the western North Atlantic Ocean, expanding the understanding of the ecological niche of this species and providing insight into by-catch mitigation strategies for fisheries managers. The results showed that S. mokarran predominantly used shallow depths (75% of records
Databáze:	OpenAIRE
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