Results 1 to 10 of about 666 (141)

The complete mitochondrial genome of Eaton’s skate, Bathyraja eatonii (Rajiformes, Arhynchobatidae) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2021
The complete mitochondrial genome of Eaton’s skate Bathyraja eatonii was studied using the long-read technology, PacBio Sequel System. The complete mitochondrial genome form of B.
Jinmu Kim   +8 more
doaj   +5 more sources

The description of two new species of Chloromyxum from skates in the Argentine Sea reveals that a limited geographic host distribution causes phylogenetic lineage separation of myxozoans in Chondrichthyes [PDF]

open access: yesParasite, 2018
During a survey on the myxosporean fauna of Rajiformes from the Atlantic coast of Argentina, in waters off Buenos Aires Province (34°–42°S; 53°–62°W), the gall bladders of 217 specimens belonging to seven species of skates, representatives of two ...
Cantatore Delfina María Paula   +6 more
doaj   +4 more sources

Reproductive biology of Sympterygia bonapartii (Chondrichthyes: Rajiformes: Arhynchobatidae) in San Matías Gulf, Patagonia, Argentina [PDF]

open access: yesNeotropical Ichthyology, 2017
This study estimates and analyses the reproductive parameters and cycle of Sympterygia bonapartii in San Matías Gulf, northern Patagonia, Argentina. A total of 827 males and 1,299 females were analysed. Males ranged from 185 to 687 mm of total length (TL)
María L. Estalles   +2 more
doaj   +4 more sources

Polymorphism in Conservative Structures? The Scapulocoracoids in Skates Genus Psammobatis (Chondrichthyes, Arhynchobatidae) and the Validity of P. parvacauda [PDF]

open access: yesFrontiers in Marine Science, 2020
Skeletal structures, especially the claspers, neurocrania, and scapulocoracoids have been widely used to characterize and describe new species of elasmobranchs.
E. Mabragaña   +4 more
doaj   +6 more sources

Reproductive biology of the eyespot skate Atlantoraja cyclophora (Elasmobranchii: Arhynchobatidae) an endemic species of the Southwestern Atlantic Ocean (34ºS - 42ºS) [PDF]

open access: yesNeotropical Ichthyology, 2018
Atlantoraja cyclophora is an endemic skate to the continental shelf of the Southwestern Atlantic Ocean (22ºS-47ºS) and a by-catch species in commercial bottom trawl fisheries.
Anahí Wehitt   +3 more
doaj   +5 more sources

Long-Term Changes in the Distribution and Abundance of Nine Deep-Water Skates (Arhynchobatidae: Rajiformes: Chondrichthyes) in the Northwestern Pacific [PDF]

open access: yesAnimals, 2022
Based on the analysis of long-term data from bottom trawl surveys (1977–2021), changes in the spatial distribution, position of the boundaries of the ranges and the catch rates of the nine most common deep-sea skates of the genus Bathyraja in the Russian
Alexei M. Orlov, Igor V. Volvenko
doaj   +2 more sources

Tapeworms (Platyhelminthes, Cestoda) from marine chondrichthyans of the Southwestern Atlantic Ocean, and the sub-Antarctic and Antarctic islands: a checklist. [PDF]

open access: yesZookeys, 2023
A parasite-host list of cestodes parasitizing chondrichthyans in the Southwest Atlantic off Argentina and surrounding waters of Antarctica is compiled based on the available literature.
Franzese S, Facal GG, Menoret A.
europepmc   +4 more sources

Growth and reproduction in captivity unveils remarkable life-history plasticity in the smallnose fanskate, Sympterygia bonapartii (Chondrichthyes: Rajiformes) [PDF]

open access: yesNeotropical Ichthyology, 2018
We analyzed growth and reproduction of captive-born smallnose fanskates Sympterygia bonapartii. Egg cases were obtained from oviposition of two females caught in the wild and held at Temaikèn Aquarium.
Julieta A. Jañez   +4 more
doaj   +5 more sources

Teeth morphology and dental sexual dimorphism of three species of the sandskate genus Psammobatis Günther, 1870 from the Brazilian coast (Rajiformes, Arhynchobatidae) [PDF]

open access: yesBiotemas, 2020
Sets of jaws of the sandskates Psammobatis extenta (n = 10), P. lentiginosa (only adult specimens, n = 8) and P. rutrum (only adult specimens, n = 10) were examined by scanning electron microscopy.
Alvaro Brum-Neto   +1 more
doaj   +3 more sources

Biogeographic patterns in the cartilaginous fauna (Pisces: Elasmobranchii and Holocephali) in the southeast Pacific Ocean. [PDF]

open access: yesPeerJ, 2014
The abundance and species richness of the cartilaginous fish community of the continental shelf and slope off central Chile is described, based on fishery-independent trawl tows made in 2006 and 2007. A total of 194,705 specimens comprising 20 species (9
Bustamante C, Vargas-Caro C, Bennett MB.
europepmc   +3 more sources

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