Molecular phylogeny of Squaliformes and first occurrence of bioluminescence in sharks [PDF]
BMC Evolutionary Biology, 2015 Abstract Background Squaliform sharks represent approximately 27 % of extant shark diversity, comprising more than 130 species with a predominantly deep-dwelling lifestyle. Many Squaliform species are highly specialized, including some that are bioluminescent, a character that is reported exclusively from Squaliform ...
Straube, Nicolas +4 more
core +5 more sources
, 2010 ORDER SQUALIFORMES Family Echinorhinidae Echinorhinus brucus (Bonnaterre, 1788) — Bramble shark Family Squalidae Squalus acanthias Linnaeus, 1758 — Piked dogfish Squalus blainvillei (Risso, 1827) — Longnose spurdog Family Centrophoridae Centrophorus granulosus (Bloch & Schneider, 1801) — Gulper shark Centrophorus squamosus ...
Mucientes, Gonzalo, Arronte, Juan Carlos
openaire +3 more sources
Evolutionary Stability of the Shark Snout: Geometric Morphometrics of Ventral Facial Openings. [PDF]
Ann N Y Acad SciLandmark‐based geometric morphometrics of 453 shark species reveal that ventral head morphology is conserved across Selachii. Morphospace and ancestral reconstructions support strong phylogenetic control and limited divergence from ancestral conditions.
Aicardi S +8 more
europepmc +2 more sources
Genome-wide identification and solute selectivity of aquaporins in the sharpnose sevengill shark, Heptranchias perlo. [PDF]
Physiol RepAbstract The aquaporin genes (aqps) are widely distributed among vertebrates. In cartilaginous fish, aqp3 and aqp10 are duplicated, whereas many species have lost aqp8. While the solute permeability of aquaglyceroporins and Aqp8 exhibits significant diversity, systematic evaluations of their activity within species are limited.
Hidaka S, Nagashima A, Kato A.
europepmc +2 more sources
The Complete Mitochondrial Genome of <i>Squalus cubensis</i> and Comparative Mitogenomics and Phylomitogenomics of the Family Squalidae. [PDF]
Ecol EvolThe complete mitochondrial genome of Squalus cubensis. ABSTRACT The Cuban dogfish, Squalus cubensis, is a benthic shark with a discontinuous distribution in the Western Atlantic Ocean, from North Carolina, USA, to San Matias Gulf, Argentina, and is caught in both commercial and recreational fisheries across its range.
Skufca K, Baeza JA.
europepmc +2 more sources
Habitat Availability, Jurassic and Cretaceous Origins of the Deep-Bodied Shark Morphotype and the Rise of Pelagic Sharks. [PDF]
Ecol EvolWe find support for a benthic origin of sharks, with four discrete transitions towards pelagic‐type morphology occurring during the Jurassic and Cretaceous. Increased habitat availability driven by biotic and abiotic environmental change may have driven shifts towards pelagic‐type morphology. These results may help explain discordance between molecular
Gayford JH +5 more
europepmc +2 more sources
Shedding light on the parasite communities and diet of the deep-sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay). [PDF]
J Fish BiolAbstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Isbert W +5 more
europepmc +2 more sources
Glow on Sharks: State of the Art on Bioluminescence Research
Oceans, 2021 This review presents a synthesis of shark bioluminescence knowledge. Up to date, bioluminescent sharks are found only in Squaliformes, and specifically in Etmopteridae, Dalatiidae and Somniosidae families.
Laurent Duchatelet +4 more
doaj +1 more source
An Exploratory Study of Telomere Length in the Deep-Sea Shark, Etmopterus granulosus
Frontiers in Marine Science, 2021 The history of elasmobranch ageing highlights the difficulty of age estimation in animals lacking ossified structures. Ageing techniques are numerous, yet all are limited by difficulties of validation and verification and inherent subjectivity.
Melissa C. Nehmens +5 more
doaj +1 more source