Results 21 to 30 of about 896 (181)
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
DiversityA total of 61 specimens of deep-sea chimaeras (Hydrolagus melanophasma = 41; Chimaera sp. = 20) were obtained during September 2017 as by-catch of the local fishery of the Patagonian toothfish (Dissostichus eleginoides, Pisces: Nototheniidae) along the ...
Marcelo E. Oliva +3 more
doaj +2 more sources
Dental plate histology of † Ischyodus dolloi (Chondrichthyes, Holocephali), from Antarctica
Journal of AnatomyIn contrast to other cartilaginous fishes (Chondrichthyes), the dentition of the Holocephali consists of six dental plates, four in the upper jaw (two vomerines and two palatines) and two in the lower jaw (mandibulars).
Gouiric Cavalli, Soledad +2 more
core +3 more sources
Journal of Morphology, 1994 AbstractThe chimaeroid holocephalian fishes are distinguished among extant chondrichthyans by the possession of three pairs of tooth plates, evergrowing and partially hypermineralized, that are not shed and replaced like the teeth of living elasmobranchs.
D. A. Didier, B. J. Stahl, R. Zangerl
core +3 more sources
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
Lista patrón de los tiburones, rayas y quimeras (Chondrichthyes, Elasmobranchii, Holocephali) de México [PDF]
Arxius de Miscel-lània Zoològica, 2016 Checklist of sharks, rays and chimaeras (Chondrichthyes, Elasmobranchii, Holocephali) from Mexico We present an annotated checklist of the species of sharks, rays and chimaeras (chondrichthyan fishes) occurring in Mexican waters, based on a thorough ...
Del Moral-Flores, L. F. +4 more
doaj +3 more sources
Community assembly processes and drivers shaping marine fish community structure in the North Sea
Ecography, Volume 2023, Issue 10, October 2023., 2023 To preserve natural ecosystems and their biodiversity, there is a need to anticipate future ecosystem changes through better understanding of underlying drivers and assembly processes determining community composition. Assembly processes can be understood as a set of filters acting at different spatio‐temporal scales that jointly define the structure ...
Marcel Montanyès +2 more
wiley +1 more source
Heterochrony and Oophagy Underlie the Evolution of Giant Filter-Feeding Lamniform Sharks. [PDF]
Evol DevRetention of juvenile craniofacial characteristics by paedomorphosis (heterochrony) may have facilitated the evolution of gigantism in filter‐feeding lamniform sharks, by increasing the efficiency of prey acquisition. ABSTRACT Evolutionary transitions toward gigantic body sizes have profound consequences for the structure and dynamics of ecological ...
Gayford JH +3 more
europepmc +2 more sources
Environmental DNA, Volume 5, Issue 4, Page 634-647, July 2023., 2023 We have developed a workflow that evaluates the current status of GenBank for marine fishes. For a given combination of species and barcodes, a gap analysis is performed and potentially erroneous sequences are identified. Besides providing a tool for reference database curation, this study confirms the 14 need to increase 12S rRNA reference sequences ...
Cristina Claver +4 more
wiley +1 more source
Ecology and Evolution, Volume 13, Issue 6, June 2023., 2023 Major knowledge gaps exist regarding Chondrichthyan trait evolution. Lack of integration between key fields of organismal biology is the main driver of this uncertainty. Increase in research effort and application of methodologies used frequently in other clades may be sufficient to overcome this lack of integration. Abstract Sharks, rays, and chimaera
Joel H. Gayford
wiley +1 more source