Results 61 to 70 of about 863 (191)

Fisher perceptions of catch and trade of sharks and rays in Angolan small‐scale fisheries

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 5, May 2024.
Abstract Small‐scale fisheries ensure food security and employment in Angolan coastal communities. These dynamic, widespread fisheries remain mostly unregulated, with limited data available despite their likely significant impact on marine megafauna. We used an interview‐based survey to investigate local fisher interactions with elasmobranchs (sharks ...
Ana Lúcia Furtado Soares   +1 more
wiley   +1 more source

Comparative assessment of eDNA metabarcoding and longline deployments for elasmobranch surveying across a large tropical marine park network

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 4, April 2024.
Abstract Medium‐ to large‐scale marine protected areas (MPAs) are playing an increasingly important role in global marine biodiversity conservation. A key question is “how do we collect relevant data on biodiversity and population trends to inform their design and measure success?” This question is particularly relevant for marine taxa that are ...
Katrina M. West   +8 more
wiley   +1 more source

Embryonic development in the bonnethead (Sphyrna tiburo), a viviparous hammerhead shark

open access: yesDevelopmental Dynamics, Volume 253, Issue 3, Page 351-362, March 2024.
Abstract Background The hammerhead sharks (family Sphyrnidae) are an immediately recognizable group of sharks due to their unique head shape. Though there has long been an interest in hammerhead development, there are currently no explicit staging tables published for any members of the group.
Steven R. Byrum   +4 more
wiley   +1 more source

БИОСТРАТИГРАФИЯ И ИЗМЕНЕНИЕ ПАЛЕОБИОТЫ НА ГРАНИЦЕ ПАЛЕОЦЕНА И ЭОЦЕНА В РАЗРЕЗЕ ПЕРШИНСКИЙ (СРЕДНЕЕ ЗАУРАЛЬЕ)

open access: yesЛитосфера, 2019
Выполнено описание разреза и биостратиграфическое расчленение палеогеновых отложений в разрезе Першинский, расположенном в южной части Среднего Зауралья (Курганская область). Проанализированы изменения состава морской микро- (динофлагеллаты) и макробиоты

doaj  

The complete mitochondrial genome of a gray reef shark, Carcharhinus amblyrhynchos (Carcharhiniformes: Carcharhinidae), from the Western Indian Ocean

open access: yesMitochondrial DNA. Part B. Resources, 2020
We present the mitochondrial genome sequence of a gray reef shark, Carcharhinus amblyrhynchos (Bleeker 1856), a coral reef associated species. This is the first mitogenome for this species from the western Indian Ocean.
Ela Patel   +7 more
doaj   +1 more source

Reproductive Biology of the Speckled Smooth-Hound Shark Mustelus mento (Carcharhiniformes: Triakidae) from the Southeastern Pacific

open access: yesFishes
The speckled smooth-hound Mustelus mento is an endemic coastal shark from the southeastern Pacific, currently listed as “Critically Endangered” due to intense fishing pressure and the absence of species-specific management across its distribution range ...
Krishna Tapia   +4 more
doaj   +1 more source

MODESTR: UNA HERRAMIENTA INFORMÁTICA PARA EL ESTUDIO DE LOS ECOSISTEMAS ACUÁTICOS DE COLOMBIA MODESTR: A SOFTWARE TOOL FOR STUDYING OF COLOMBIAN AQUATIC ECOSYSTEMS

open access: yesActualidades Biológicas, 2012
El objetivo de este trabajo es mostrar las utilidades del programa informático ModestR, en estudios sobre distribución de especies en ecosistemas marinos y de agua dulce de Colombia.
Patricia Pelayo-Villamil   +10 more
doaj  

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

First record of the blacktip reef shark Carcharhinus melanopterus (Carcharhiniformes: Carcharhinidae) from the Tropical Eastern Pacific

open access: yesRevista de Biología Tropical, 2012
The blacktip reef shark Carcharhinus melanopterus, is one of the most common Indo-Pacific reef sharks. On April 29, 2012, a juvenile male blacktip reef shark measuring 89 cm total length (TL), was incidentally caught during a research expedition in ...
Andrés López-Garro   +3 more
doaj   +2 more sources

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