Results 21 to 30 of about 787 (184)

Shark conservation hindered by lack of habitat protection

open access: yesGlobal Ecology and Conservation, 2020
Many of the world’s shark populations are in decline, indicating the need for improved conservation and management. Well managed and appropriately located marine parks and marine protected areas (MPAs) have potential to enhance shark conservation by ...
Charlotte A. Birkmanis   +4 more
doaj   +1 more source

Rapid DNA/eDNA-Based ID Tools for Improved Chondrichthyan Monitoring and Management. [PDF]

open access: yesMol Ecol Resour
ABSTRACT Rapid DNA/eDNA‐based ID tools, which detect specific genetic patterns without requiring sequencing, are essential for biodiversity and wildlife trade monitoring, particularly for species of conservation concern. However, the practical application of these methods remains limited by the availability of standardised protocols, accessibility of ...
Alvarenga MM   +13 more
europepmc   +2 more sources

Unveiling the power of environmental DNA: A review of eDNA application to monitoring threatened fish in Indonesian Waters [PDF]

open access: yesE3S Web of Conferences, 2023
This study examines environmental DNA (eDNA) techniques to detect and monitor threatened fish species in Indonesian waters. By analyzing 17 selected documents out of 284 papers and 310 metadata files, the study identified 30 Indonesian threatened fish ...
Kusumah Ruby Vidia   +6 more
doaj   +1 more source

Catch Composition, Seasonality, and Biological Aspects of Sharks Caught in the Ecuadorian Pacific

open access: yesDiversity, 2022
Although sharks have a fundamental role in maintaining the balance of aquatic ecosystems, exerting a great influence on lower levels of the food chain, their populations are declining worldwide due, to a large extent, to overfishing.
Jesús Briones-Mendoza   +2 more
doaj   +1 more source

Assessment of the physiological vulnerability of the endemic and critically endangered Daggernose Shark: A comparative approach to other Carcharhiniformes

open access: yesFrontiers in Marine Science, 2023
IntroductionThe current Isogomphodon oxyrhynchus (Daggernose Shark) population status Q7points to 99% losses in the last decade due to certain biological traits, site fidelity, and historical high representativeness as bycatch in artisanal fisheries ...
Natascha Wosnick   +5 more
doaj   +1 more source

Surface morphology and distribution of oropharyngeal taste papillae in sharks and rays (Elasmobranchii, Chondrichthyes): Implications for gustatory sensitivity. [PDF]

open access: yesJ Anat
This study investigates the morphology, abundance, and distribution of taste papillae in the oropharyngeal cavity of a range of elasmobranchs using SEM, histology, and topographic analyses. The interspecific importance of gustation is reflected in quantitative differences in the size, density, and distribution of taste papillae, which have implications
Atkinson CJL, Collin SP.
europepmc   +2 more sources

Whoʼs the biggest fish in the pond? The story of bull sharks (Carcharhinus leucas) in an Australian golf course lake, with deliberations on this speciesʼ longevity in low salinity habitats

open access: yesMarine and Fishery Sciences, 2023
This article addresses the history of a resident population of bull sharks (Carcharhinus leucas) in an isolated stagnant body of water in subtropical Australia. From 1996 to 2013, six bull sharks were landlocked in a golf course lake near Brisbane.
Peter Gausmann
doaj   +1 more source

New inland records of the bull shark Carcharhinus leucas from Sumatra, Indonesia

open access: yesMarine and Fishery Sciences, 2022
Six new records of the bull shark Carcharhinus leucas from five different river basins of Sumatra, Indonesia, were reported as a result of captures by artisanal and recreational fishers, including records from rivers of northern and western Sumatra for ...
Peter Gausmann, Veryl Hasan
doaj   +1 more source

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