Results 21 to 30 of about 522 (154)

Genome-wide identification and solute selectivity of aquaporins in the sharpnose sevengill shark, Heptranchias perlo. [PDF]

Physiol Rep
Abstract 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

Occurrence of Hydrolagus macrophthalmus (Chondrichthyes: Holocephali: Chimaeridae) in the northeastern Pacific Presencia de Hydrolagus macrophthalmus (Chondrichthyes: Holocephali: Chimaeridae) en el Pacífico nororiental

Revista Mexicana de Biodiversidad, 2010
The southeastern Pacific chimaeroid Hydrolagus macrophthalmus De Buen, 1959, is reported for the first time in the northeastern Pacific on the basis of 1 male specimen (945 mm TL) caught on 13 April 1995 off Manzanillo, Colima (Mexico: 18° 30'N, 104° 15 ...
Adrián F. González-Acosta, José Luis Castro-Aguirre, Dominique A. Didier, Rafael Vélez-Marín, Luis A. Burnes-Romo   +4 more
doaj   +1 more source

First record of chimaeroid fish Ischyodus from the Upper Jurassic of southwestern Gondwana [PDF]

Acta Palaeontologica Polonica, 2021
This study presents two specimens of Chimaeriformes from Upper Jurassic strata of central Chile. The material was recovered from Tithonian levels of the Baños del Flaco Formation and includes two different individuals, one preserving two articulated ...
Rodrigo A. Otero, Constanza Figueroa Bravo, Paula Soto-Huenchumán, Sara Fernández-Collemann, Ana M. Valenzuela-Toro, Carolina S. Gutstein   +5 more
doaj   +1 more source

Shedding light on the Holocephali taxonomy, the mitogenome of Chimaera opalescens [PDF]

Reviews in Fish Biology and Fisheries, 2022
Cartilaginous fish (Chondrichthyes), i.e. sharks, rays, and chimaeras, are extremely interesting from a biological perspective as they represent one of the oldest and most ecologically diverse groups of jawed vertebrates. Their K-selective reproductive traits, make them vulnerable to overfishing.
Vilas-Arrondo, N. (Nair), Gomes-dos-Santos, A. (Andre), Pérez, M. (Montse), Baldó, F. (Francisco), Veríssimo, A. (Ana), Machado, A.M. (André M.), Román-Marcote, E. (Esther), Bañón, R. (Rafael), Froufe, E. (Elsa), Castro, L.F.C. (L. Filipe C.)   +9 more
openaire   +4 more sources

Heterochrony and Oophagy Underlie the Evolution of Giant Filter-Feeding Lamniform Sharks. [PDF]

Evol Dev
Retention 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, Irschick DJ, Chin A, Rummer JL.   +3 more
europepmc   +2 more sources

Feeding habits of the cockfish, Callorhinchus callorynchus (Holocephali: Callorhinchidae) from off northern Argentina [PDF]

Neotropical Ichthyology, 2020
The feeding habits of Callorhinchus callorynchus were investigated in coastal waters off northern Argentina. The effect of body size, seasons and regions was evaluated on female diet composition using a multiple-hypothesis modelling approach ...
Jorge M. Roman, Melisa A. Chierichetti, Santiago A. Barbini, Lorena B. Scenna   +3 more
doaj   +1 more source

Revealing less derived nature of cartilaginous fish genomes with their evolutionary time scale inferred with nuclear genes. [PDF]

PLoS ONE, 2013
Cartilaginous fishes, divided into Holocephali (chimaeras) and Elasmoblanchii (sharks, rays and skates), occupy a key phylogenetic position among extant vertebrates in reconstructing their evolutionary processes. Their accurate evolutionary time scale is
Adina J Renz, Axel Meyer, Shigehiro Kuraku   +2 more
doaj   +1 more source

Enigmatic Nodal and Lefty gene repertoire discrepancy: Latent evolutionary history revealed by vertebrate-wide phylogeny. [PDF]

Dev Dyn
Abstract Homology in vertebrate body plans is traditionally ascribed to the high‐level conservation of regulatory components within the genetic programs governing them, particularly during the “phylotypic stage.” However, advancements in embryology and molecular phylogeny have unveiled the dynamic nature of gene repertoires responsible for early ...
Kuraku S.
europepmc   +2 more sources

Holocephali de la Formación Irati (Cuenca del Paraná), Brasil: Origen, Consideraciones Paleogeográficas y Paleoambientales

Estudios Geologicos, 2023
La Formación Irati (Pérmico, Cisuraliano) tiene varios tipos de vertebrados acuáticos, incluyendo especies de Chondrichthyes. Se reconocen dos miembros de Irati, Assistência (superior) y Taquaral (inferior).
Artur Chahud
doaj   +1 more source

The complete mitochondrial genome of the deep-water cartilaginous fish Hydrolagus affinis (de Brito Capello, 1868) (Holocephali: Chimaeridae)

Mitochondrial DNA. Part B. Resources, 2020
Cartilaginous fishes are a highly vulnerable vertebrate group but remain poorly studied, especially those occupying deep-water ecological niches. Here, we describe the complete mitogenome of the deep-water chimaeriform Hydrolagus affinis (de Brito ...
André Gomes-dos-Santos, Nair Vilas Arrondo, André M. Machado, Ana Veríssimo, Montse Pérez, Esther Román, L. Filipe C. Castro, Elsa Froufe   +7 more
doaj   +1 more source