Results 11 to 20 of about 2,860 (207)
Comparative genomics of chondrichthyan Hoxa clusters [PDF]
BMC Evolutionary Biology, 2009 Background The chondrichthyan or cartilaginous fish (chimeras, sharks, skates and rays) occupy an important phylogenetic position as the sister group to all other jawed vertebrates and as an early lineage to diverge from the vertebrate lineage following ...
Zhong Ying-Fu +2 more
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Updated Checklist of Chondrichthyan Species in Croatia (Central Mediterranean Sea)
Biology, 2023 Almost half of all chondrichthyan species in the Mediterranean Sea are threatened with extinction, according to the IUCN Red List. Due to a substantial lack of access to data on chondrichthyan catches in the Mediterranean Sea, especially of threatened ...
Pia F. Balàka +6 more
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Chondrichthyan Diversity, Conservation Status, and Management Challenges in Costa Rica
Frontiers in Marine Science, 2018 Understanding key aspects of the biology and ecology of chondrichthyan fishes (sharks, rays, and chimeras), as well as the range of threats affecting their populations is crucial given the rapid rate at which some species are declining.
Mario Espinoza +9 more
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Spatial distribution of the demersal chondrichthyan community from the western Mediterranean trawl bycatch [PDF]
Frontiers in Marine Science, 2023 IntroductionChondrichthyans (sharks, batoids and chimaeras) play key roles in the regulation of marine food webs dynamics. However, more than half of the assessed species in the Mediterranean are threatened, primarily by fishing pressure and compounded ...
David Ruiz-García +8 more
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Diversity, 2019 Chondrichthyes (sharks, rays, skates and chimaeras) are among the oldest extant predators and are vital to top-down regulation of oceanic ecosystems. They are an ecologically diverse group occupying a wide range of habitats and are thus, exploited by ...
Shaili Johri +3 more
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PLoS ONE, 2016 The deepwater chondrichthyan fauna of the Great Barrier Reef is poorly known and life history information is required to enable their effective management as they are inherently vulnerable to exploitation.
Cassandra L Rigby +2 more
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Insights from three decades of IUCN Red List assessments catalyzing shark, ray, and chimaera conservation. [PDF]
Conserv BiolAbstract The International Union for Conservation of Nature (IUCN) Red List of Threatened Species is a critical measure of global aquatic and terrestrial biodiversity status. It is also the basis for the Red List Index, which tracks extinction risk over time.
Finucci B +10 more
europepmc +2 more sources
A new Meckel’s cartilage from the Devonian Hangenberg black shale in Morocco and its position in chondrichthyan jaw morphospace [PDF]
PeerJ, 2022 Fossil chondrichthyan remains are mostly known from their teeth, scales or fin spines only, whereas their cartilaginous endoskeletons require exceptional preservational conditions to become fossilized.
Merle Greif +2 more
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Widespread complex enameloid microstructure in teeth and rostral denticles of Cretaceous sclerorhynchoid skates (Rajiformes: †Sclerorhynchoidei). [PDF]
J AnatThis article demonstrates that the teeth and rostral denticles of an extinct clade of sawfish‐like skates display an extremely derived enameloid microstructure, similar to what is known among sharks. The presence of tooth‐like enameloid microstructure in dermal denticles opens new perspectives about the origins and development of chondrichthyan ...
Chateauneuf-Gautier E, Guinot G.
europepmc +2 more sources
Veterinary Sciences, 2022 The therapy database currently used in elasmobranchs is still mostly based on empirical data, and there are few efficacy and safety studies supporting clinical practice.
Pablo Morón-Elorza +6 more
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