Results 51 to 60 of about 1,443 (143)

Retention Bans Are Beneficial but Insufficient to Stop Shark Overfishing

open access: yesFish and Fisheries, Volume 26, Issue 3, Page 473-487, May 2025.
ABSTRACT Sharks are among the most threatened groups of exploited fishes, comprising common bycatch across many fisheries. Management efforts intended to safeguard threatened species have increasingly focused on retention bans to reduce bycatch mortality. However, the population effects of such measures remain unevaluated across species.
Leonardo Manir Feitosa   +7 more
wiley   +1 more source

Feeding habits of Bigeye Houndshark, Iago omanensis (Elasmobranchii; Triakidae); a typical deep water shark from the Gulf of Oman

open access: yesInternational Journal of Aquatic Biology, 2019
In this study, the feeding habits of Bigeye Houndshark, Iago omanensis, a typical deep water shark, were examined in the Gulf of Oman by analyzing of stomach contents.
Ali Reza Rastgoo   +2 more
doaj   +1 more source

A Review of the Status of Sharks, Rays and Chimaeras of Panama to Guide Research and Conservation

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 4, April 2025.
ABSTRACT Chondrichthyan fishes (sharks, rays and chimaeras) are a group of high conservation concern globally. Species are impacted by varying threats, although fishing pressure is the primary stressor causing population declines. Panama comprises both Pacific and Caribbean coastlines with a diversity of estuarine and marine habitats supporting small ...
Jorge Manuel Morales‐Saldaña   +5 more
wiley   +1 more source

Size of catch, reproduction and feeding of the small-eye smooth-hound, Mustelus higmani (Carcharhiniformes: Triakidae), in Margarita Island, Venezuela

open access: yesScientia Marina, 2015
Mustelus higmani is categorized as “least concern” according to the red list of the International Union for Conservation of Nature, but gaps in population trends occur in most of its distribution range.
Alejandro Tagliafico   +3 more
doaj   +1 more source

Length-weight relationships for some important forage crustaceans from South Africa [PDF]

open access: yes, 2000
The diet of marine animals is usually determined by stomach content analysis. Although partially digested prey fragments can often be identified to species level, it is difficult to estimate the original mass of the prey organism.
Gibbons, M.J.   +4 more
core  

Mitigating the effect of by‐catch on endangered marine life

open access: yesAnimal Conservation, Volume 28, Issue 2, Page 172-184, April 2025.
Fishing gears cause substantial impacts on the oceans and their ecosystems, and many marine animals, such as sea turtles, marine mammals, seabirds and elasmobranchs, end up as by ‐catch. In this paper, the most effective mitigation measures were investigated for each group, taking into account the fishing gear with which they interact most.
M. Villafáfila   +2 more
wiley   +1 more source

Diversity, occurrence and conservation of sharks in the southern South China Sea.

open access: yesPLoS ONE, 2019
Sharks constitute a vital sector of marine and estuarine nekton and are of great commercial importance all over the world. International concern over the fate of shark fisheries has grown recently.
Takaomi Arai, Azie Azri
doaj   +1 more source

Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea

open access: yesScientia Marina, 2009
Specimens of Mustelus punctulatus were collected between January 2002 and December 2005 from commercial fisheries in the Gulf of Gabès (central Mediterranean Sea).
Bechir Saïdi   +2 more
doaj   +1 more source

Species, Performance and Sex Ratio of Shark Landed in Pelabuhan Perikanan Samudra Cilacap [PDF]

open access: yes, 2017
Produksi ikan hiu di Indonesia masih mengandalkan hasil tangkapan dari alam. Meskipun sudah terdapat beberapa per-aturan yang mengatur tentang penangkapan, pemanfaatan dan status perlindungannya, namun dalam prakteknya kurang dipatuhi.
Abulias, M. N. (Muh)   +2 more
core  

Design and Validation of an Open–Close Device for Integrated Environmental DNA Sampling Detects A Depth Gradient in Indian Ocean Deep‐Sea Fish Assemblages

open access: yesEcology and Evolution, Volume 15, Issue 2, February 2025.
The goal of this study was to leverage existing survey technology to design and test an eDNA sampler that captures an integrated eDNA sample over the length of a deep‐water transect. We provide a biological interpretation of the resulting data, demonstrating the usefulness of such technology to understand the ocean environments, using fish species as ...
Cindy Bessey   +11 more
wiley   +1 more source

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