Results 41 to 50 of about 5,320 (221)
Empirical equations for estimating maximum length from length at first maturity [PDF]
, 2009 10.1111/j.1439-0426.2009.01215.
Allen +11 more
core +1 more source
Animals, 2021 The chondrichthyan fishes, which comprise sharks, rays, and chimaeras, are one of the most threatened groups of vertebrates on the planet. Given this situation, an additional strategy for the protection of these species could be the ex situ conservation ...
Pablo García-Salinas +2 more
doaj +1 more source
Evaluando los niveles tróficos de dos tiburones oceánicos del Océano Pacífico suroriental [PDF]
, 2016 Indexación: Web of ScienceStable isotope analyses for shortfin mako (Isurus oxyrinchus) and blue sharks (Prionace glauca) were conducted to assess their trophic position in two periods of time (before 1980 and after 2000) in the Southeastern Pacific ...
Barria, P +4 more
core +1 more source
A shared role for sonic hedgehog signalling in patterning chondrichthyan gill arch appendages and tetrapod limbs. [PDF]
, 2016 Chondrichthyans (sharks, skates, rays and holocephalans) possess paired appendages that project laterally from their gill arches, known as branchial rays.
Gillis, J Andrew, Hall, Brian K
core +2 more sources
Habitat Use Throughout a Chondrichthyan's Life [PDF]
, 2021 <p>Over the last few decades, much effort has been devoted towards evaluating and reducing bycatch in marine fisheries. There has been a particular focus on quantifying the risk to chondrichthyans, primarily because of their relatively high vulnerability to overfishing. A key part of risk assessment is evaluating the distributional overlap of the
openaire +1 more source
The Anatomical Record, EarlyView.This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti +2 more
wiley +1 more source
Questioning hagfish affinities of the enigmatic Devonian vertebrate Palaeospondylus [PDF]
Royal Society Open Science, 2017 Palaeospondylus gunni Traquair, 1890 is an enigmatic Devonian vertebrate whose taxonomic affinities have been debated since it was first described. Most recently, Palaeospondylus has been identified as a stem-group hagfish (Myxinoidea).
Zerina Johanson +5 more
doaj +1 more source
Late Triassic (Rhaetian) conodonts and ichthyoliths from Chile [PDF]
, 2000 The Late Triassic of the back arc Domeyko Basin, Chile is characterized by the onset of marine sedimentation that persisted throughout the rest of the Mesozoic.
Sansom, Ivan J.
core +1 more source
Early evolution of the gular musculature and its innervation in ray‐finned fishes
The Anatomical Record, EarlyView.Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo +4 more
wiley +1 more source
An Updated Greek National Checklist of Chondrichthyans
Fishes, 2022 Accurate checklists of species are essential for evaluating their conservation status and for understanding more about their distribution, biology and ecology and, therefore, the first step in order to effectively protect them.
Ioannis Giovos +13 more
doaj +1 more source