Rapid DNA/eDNA-Based ID Tools for Improved Chondrichthyan Monitoring and Management. [PDF]
Mol Ecol ResourABSTRACT 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
Surface morphology and distribution of oropharyngeal taste papillae in sharks and rays (Elasmobranchii, Chondrichthyes): Implications for gustatory sensitivity. [PDF]
J AnatThis 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
Bacterial diversity in the jelly of shark Ampullae of Lorenzini: a holobiont perspective [PDF]
PeerJThe Ampullae of Lorenzini (AoL) are specialized electrosensory organs found in sharks and other chondrichthyans. They allow the detection of electric fields, temperature changes, and salinity variations.
Nataly Bolaño-Martínez +4 more
doaj +3 more sources
Rare evidence of shark-on-shark trophic interactions in the fossil record [PDF]
Acta Palaeontologica Polonica, 2021 Direct evidence of chondrichthyan trophic interactions in the fossil record is largely limited to bite traces on prey items but may also be found within the gut contents of exceptionally well-preserved individuals or as inclusions within coprolites ...
VICTOR J. PEREZ +2 more
doaj +1 more source
High overexploitation risk due to management shortfall in highly traded requiem sharks
Conservation Letters, 2023 Most of the international trade in fins (and likely meat too) is derived from requiem sharks (family Carcharhinidae), yet trade in only two of the 56 species is currently regulated.
C. Samantha Sherman +8 more
doaj +1 more source
Shark conservation hindered by lack of habitat protection
Global 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
Unveiling the power of environmental DNA: A review of eDNA application to monitoring threatened fish in Indonesian Waters [PDF]
E3S 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
Diversity, 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
Frontiers 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