Results 11 to 20 of about 6,095 (244)

Elasmobranch spatial segregation in the western Mediterranean [PDF]

open access: yesScientia Marina, 2011
Basic information on the distribution and habitat preferences of ecologically important species is essential for their management and protection. This study focuses on the depth related trends and the geographic patterns that shape the community of the ...
Adam Gouraguine   +8 more
doaj   +4 more sources

Gill function in an elasmobranch [PDF]

open access: yesZeitschrift f�r Vergleichende Physiologie, 1971
Highly efficient oxygen uptake in elasmobranchs, as indicated by frequent excess of PaO2 over PEO2 has previously been ascribed to the operation of multicapillary rather than counter-current gas exchange by the gills. Analysis of models shows that, at maximum efficiency, a multicapillary system cannot account for values of PaO2 greater than (PIO2+PEO2)/
Grigg, GC, Read, J
openaire   +3 more sources

Universal closed-tube barcoding for monitoring the shark and ray trade in megadiverse conservation hotspots

open access: yesiScience, 2023
Summary: Trade restrictions for endangered elasmobranch species exist to disincentivise their exploitation and curb their declines. However, trade monitoring is challenging due to product variety and the complexity of import/export routes. We investigate
Andhika P. Prasetyo   +6 more
doaj   +1 more source

Social, economic and trade characteristics of the elasmobranch fishery on Unguja Island, Zanzibar, East Africa [PDF]

open access: yes, 2017
Understanding the socio-economic drivers underpinning fishers' decisions to target elasmobranchs is considered vital in determining sustainable management objectives for these species, yet limited empirical data is collected.
S. Stead   +9 more
core   +1 more source

Satellite Remote Sensing in Shark and Ray Ecology, Conservation and Management

open access: yesFrontiers in Marine Science, 2019
Global elasmobranch populations have declined dramatically over the past 50 years, and continued research into the drivers of their habitats and distributions is vital for improved conservation and management.
Michael J. Williamson   +4 more
doaj   +1 more source

Mitigation of Elasmobranch Bycatch in Trawlers: A Case Study in Indian Fisheries

open access: yesFrontiers in Marine Science, 2020
Bycatch poses a significant threat to marine megafauna, such as elasmobranchs. India has one of the highest elasmobranch landings globally, through both targeted catch and bycatch.
Trisha Gupta   +8 more
doaj   +1 more source

Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation

open access: yesFrontiers in Marine Science, 2023
IntroductionLoss of biodiversity in marine ecosystems is a globally acknowledged problem. To address this and avoid extinctions, improved conservation is required to protect and restore our oceans.
Martha O’Keefe   +10 more
doaj   +1 more source

Literature review of elasmobranch bycatch and retention rate [PDF]

open access: yes, 2015
To address growing concern over the effects of fisheries non-target catch on elasmobranchs worldwide, the accurate reporting of elasmobranch catch is essential.
Lewison, Rebecca   +9 more
core   +1 more source

Artisanal elasmobranch fisheries of northwestern Baja California, Mexico

open access: yesCiencias Marinas, 2020
Elasmobranch species composition and spatiotemporal variability can often be characterized from landing surveys of local fisheries, with important management implications. In the present study, we describe the elasmobranch landing composition of 4 major
Omar Santana-Morales   +5 more
doaj   +1 more source

Fauna observed at elasmobranch carcasses. [PDF]

open access: yes, 2014
Fauna observed at elasmobranch carcasses.
Andrew R. Gates (130334)   +2 more
core   +1 more source

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