Beyond the Meal: Trophic Controls by Pelagic and Demersal Chondrichthyes in Two Different Mediterranean Marine Food Webs [PDF]
Ecology and EvolutionPelagic and demersal Chondrichthyes can assume different patterns of trophic controls on marine food webs, sustaining the functioning of marine ecosystems.
P. Ricci +7 more
doaj +2 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
Ecology and Evolution, 2021 Batoids, distributed from shallow to abyssal depths, are considerably vulnerable to anthropogenic threats. Data deficiencies on the distribution patterns of batoids, however, challenge their effective management and conservation.
Fernando Tuya +8 more
doaj +1 more source
Environmental DNA captures elasmobranch diversity in a temperate marine ecosystem
Environmental DNA, 2022 Many sharks, skates, and rays (elasmobranchs) are highly threatened by the activities of commercial fisheries, and a clear understanding of their distributions, diversity, and abundance can guide protective measures.
Zifang Liu +8 more
doaj +1 more source
First record of chimaeroid fish Ischyodus from the Upper Jurassic of southwestern Gondwana [PDF]
Acta Palaeontologica Polonica, 2021 This study presents two specimens of Chimaeriformes from Upper Jurassic strata of central Chile. The material was recovered from Tithonian levels of the Baños del Flaco Formation and includes two different individuals, one preserving two articulated ...
Rodrigo A. Otero +5 more
doaj +1 more source
Late Mesozoic marine Antarctic fishes: future perspectives based on the newly collections recovered in the Ameghino and López de Bertodano Formations [PDF]
Research & Knowledge, 2017 Nowadays, notothenioids are the teleostean group that dominates marine Antarctic waters. However, during the Mesozoic a diverse ichthyofauna inhabited the sea that surrounded Antarctic.
Soledad Gouiric-Cavalli +10 more
doaj +1 more source
Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries, 2022 In this study, a shoal of bull rays, Aetomylaeus bovinus (E. Geoffroy Saint-Hilaire, 1817), around a sea-cage fish farm in Iskenderun Bay, Turkey is reported.
Okan AKYOL
doaj +1 more source
Bioenergetic Model of the Highly Exploited Shark Mustelus schmitti under a Global Warming Context
Diversity, 2023 Bioenergetic models are tools that allow the evaluation of the effect of environmental variables on fish growth. Successful implementation of this approach has been achieved in a few elasmobranch species. Our objective was to develop a bioenergetic model
Juan Manuel Molina +3 more
doaj +1 more source
An updated checklist of Chondrichthyes from the southeast Pacific off Peru [PDF]
Check List, 2015 The first updated and comprehensive checklist of Chondrichthyes from the southeast Pacific off Peru, based on the revision of scientific literature, is presented.
Rodolfo Cornejo +4 more
doaj +3 more sources
The Development of the Chimaeroid Pelvic Skeleton and the Evolution of Chondrichthyan Pelvic Fins
Journal of Developmental Biology, 2022 Pelvic girdles, fins and claspers are evolutionary novelties first recorded in jawed vertebrates. Over the course of the evolution of chondrichthyans (cartilaginous fish) two trends in the morphology of the pelvic skeleton have been suggested to have ...
Jacob B. Pears +5 more
doaj +1 more source