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The Complete Mitochondrial Genome and Phylogenetic Position of the Pacific Spiny Dogfish Squalus suckleyi (Squaliformes: Squalidae) [PDF]

open access: yesEcology and Evolution
The Pacific spiny dogfish, Squalus suckleyi (Girard, 1854), is a benthopelagic small shark widely distributed across the North Pacific, caught in both commercial and bycatch fisheries throughout its range. Here we report the first mitochondrial genome of
Laure Inçaby   +6 more
doaj   +4 more sources

On catch of deep-sea shark Zameus squamulosus (Somniosidae, Squaliformes) in the epipelagic layer of the North-West Pacific [PDF]

open access: yesИзвестия ТИНРО, 2016
Two specimens of velvet dogfish Zameus squamulosus (TL 68.0 and 68.4 cm) caught in the epipelagic layer of the North-West Pacific are described, including morphometric parameters, number of vertebras, number of teeth rows, number of mitral valves, and ...
Vladimir N. Dolganov
doaj   +6 more sources

Characterization of the complete mitochondrial genome of Squalus brevirostris (Squaliformes, Squalidae) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2019
The complete mitochondrial genome sequence of Squalus brevirostri was determined using next-generation sequencing. The whole circular genome is 16,734 bp in length.
Nan Zhang   +6 more
doaj   +5 more sources

Systematics and Phylogenetic Interrelationships of the Enigmatic Late Jurassic Shark Protospinax annectans Woodward, 1918 with Comments on the Shark–Ray Sister Group Relationship [PDF]

open access: yesDiversity, 2023
The Late Jurassic elasmobranch Protospinax annectans is often regarded as a key species to our understanding of crown group elasmobranch interrelationships and the evolutionary history of this group.
Patrick L. Jambura   +12 more
doaj   +2 more sources

Ontogenetic Shifts in Body Morphology of Demersal Sharks’ Species (Order: Squaliformes) Inhabiting the Western-Central Mediterranean Sea, with Implications for Their Bio-Ecological Role [PDF]

open access: yesBiology, 2023
Several elasmobranch species undergo shifts in body proportions during their ontogenetic growth. Such morphological changes could reflect variation in diet, locomotion, or, more broadly, in the species’ interactions with their environment.
Andrea Bellodi   +6 more
doaj   +2 more sources

First genetically confirmed records of the little gulper shark Centrophorus uyato (Squaliformes: Centrophoridae) from Cypriot waters [PDF]

open access: yesBiodiversity Data Journal, 2021
The taxonomy within the genus Centrophorus has been controversial almost since its origin, raising uncertainties about the identification, the phylogenetic placement and the geographical distribution of several species.
Vasiliki Kousteni   +4 more
doaj   +4 more sources

Bio-Ecological Features Update on Eleven Rare Cartilaginous Fish in the Central-Western Mediterranean Sea as a Contribution for Their Conservation [PDF]

open access: yesLife, 2021
Cartilaginous fish are commonly recognized as key species in marine ecosystems for their fundamental ecological role as top predators. Nevertheless, effective management plans for cartilaginous fish are still missing, due to the lack of knowledge on ...
Antonello Mulas   +7 more
doaj   +2 more sources

Dataset of the complete mitogenome of the deep-sea sailfin roughshark, Oxynotus paradoxus Frade, 1929 [PDF]

open access: yesData in Brief
Chondrichthyans comprise a diverse group of vertebrate species with extraordinary ecological relevance. Yet, multiple members of this evolutionary lineage are associated with significant extinction risk.
Ana Matos   +8 more
doaj   +2 more sources

Untangling the systematic dilemma behind the roughskin spurdog Cirrhigaleus asper (Merrett, 1973) (Chondrichthyes: Squaliformes), with phylogeny of Squalidae and a key to Cirrhigaleus species. [PDF]

open access: yesPLoS ONE, 2023
Cirrhigaleus comprises a small genus of rare barbel-bearing dogfish sharks with distributions in limited regions of all oceans. Generic validity and taxonomic status of some species are upon controversies by morphological and molecular evidence that ...
Sarah Viana, Karla D A Soares
doaj   +3 more sources

Placoid scales in bioluminescent sharks: Scaling their evolution using morphology and elemental composition

open access: yesFrontiers in Marine Science, 2022
Elasmobranchs are characterised by the presence of placoid scales on their skin. These scales, structurally homologous to gnathostome teeth, are thought to have various ecological functions related to drag reduction, predator defense or abrasion ...
Alexia Lourtie   +7 more
doaj   +1 more source

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