Results 61 to 70 of about 4,709 (218)
Mitochondrial DNA. Part B. Resources, 2022 Chondrichthyans (sharks, rays and chimeras) are a fascinating and highly vulnerable group of early branching gnathostomes. However, they remain comparatively poorly sampled from the point of view of molecular resources, with deep water taxa being ...
Nair Vilas-Arrondo +10 more
doaj +1 more source
Fish and Fisheries, EarlyView.ABSTRACT Central to ecosystem‐based fisheries management is ensuring the sustainability of bycatch and byproduct species. However, the sustainability of these species is difficult to assess as the lack of information limits the use of traditional stock assessment methods.
Grant J. Johnson +5 more
wiley +1 more source
DISTRIBUTION OF PIGMENT CELLS IN THE HEART OF THE RABBITFISH, CHIMAERA MONSTROSA (CONDRICHTHYES: HOLOCEPHALI) [PDF]
, 2013 El resumen aparece en el Program & Abstracts of the 10th International Congress of Vertebrate Morphology, Barcelona 2013. Anatomical Record, Volume 296, Special Feature — 1: P-076.The study of extracutaneous cells producing and storing melanin is of ...
Durán, Ana C. +5 more
core
Public perceptions of sharks: Gathering support for shark conservation [PDF]
, 2014 With increasing evidence of the destructive impacts of human activities on the ocean there is a growing call for stronger public engagement in marine governance.
Friedrich, LA, Glegg, G, Jefferson, R
core +2 more sources
Journal of Fish Biology, EarlyView.Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro +2 more
wiley +1 more source
The homology and phylogeny of chondrichthyan tooth enameloid [PDF]
Journal of Morphology, 2006 AbstractA systematic SEM survey of tooth microstructure in (primarily) fossil taxa spanning chondrichthyan phylogeny demonstrates the presence of a superficial cap of single crystallite enameloid (SCE) on the teeth of several basal elasmobranchs, as well as on the tooth plates of Helodus (a basal holocephalan).
Gillis, JA, Donoghue, PCJ
openaire +3 more sources
Journal of Fish Biology, EarlyView.Abstract This study documents the occurrence, seasonal patterns and reproductive activity of the sand tiger shark (Carcharias taurus) within a no‐take marine protected area in southeastern Brazil, using Baited Remote Underwater Video (BRUV) and diving records.
Ana Clara S. Athayde +8 more
wiley +1 more source
Journal of Anatomy, EarlyView.Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek +2 more
wiley +1 more source
Growth and maturity of salmon sharks (Lamna ditropis) in the eastern and western North Pacific, and comments on back-calculation methods [PDF]
, 2006 Age and growth estimates for salmon sharks (Lamna ditropis) in the eastern North Pacific were derived from 182 vertebral centra collected from sharks ranging in length from 62.2 to 213.4 cm pre-caudal length (PCL) and compared to previously published age
Goldman, Kenneth J., Musick, John A.
core +1 more source
A marine vertebrate fauna from the Late Triassic of Somerset, and a review of British placodonts [PDF]
, 2015 The British Rhaetian (latest Triassic) is famous for its bone beds containing abundant remains of fishes and reptiles. Most Rhaetian bone beds are assumed to have been similar in faunal composition, representing long-distance mixing of transported ...
Benton, Michael J. +2 more
core +2 more sources