Results 21 to 30 of about 2,860 (207)

Pharmacokinetic Studies in Elasmobranchs: Meloxicam Administered at 0.5 mg/kg Using Intravenous, Intramuscular, and Oral Routes to Nursehound Sharks (Scyliorhinus stellaris)

open access: yesFrontiers in Veterinary Science, 2022
Infectious and inflammatory diseases are the most frequently diagnosed pathologies in elasmobranchs maintained under human care. Non-steroidal anti-inflammatory drugs (NSAIDs) are frequently used in veterinary medicine for their anti-inflammatory ...
Pablo Morón-Elorza   +7 more
doaj   +1 more source

The Late Cretaceous chondrichthyan fauna of the Elbtal Group (Saxony, Germany) [PDF]

open access: yesResearch & Knowledge, 2017
Upper Cretaceous (upper Cenomanian–lower Coniacian) marine strata of Saxony, eastern Germany, are mainly known for their rich invertebrate fauna, but have also yielded various vertebrate remains. The Saxonian Cretaceous marine strata, predominantly sand-
Jan Fischer   +4 more
doaj   +1 more source

Chondrichthyan Fauna from the Pirabas Formation, Miocene of Northern Brazil, with Comments on Paleobiogeography [PDF]

open access: yesAnuário do Instituto de Geociências, 2005
The chondrichthyan fauna from the Pirabas Formation is redescribed. Only thirteen nominal taxa are considered valid. From these taxa, ten were reassigned to extant taxa (Carcharhinus sorrah, Carcharhinus perezii, Galeocerdo cuvier, Rhizoprionodon ...
Márcia Aparecida Fernandes dos Reis
doaj   +2 more sources

Chondrichthyan spines from the Famennian (Upper Devonian) of Russia [PDF]

open access: yes, 2020
© 2020 Polish Academy of Sciences. All rights reserved. Lebedev, O.A., Ivanov, A.O. and Linkevich, V.V. 2020. Chondrichthyan spines from the Famennian (Upper Devonian) of Russia. Acta Geologica Polonica, 70 (3), 339–362. Warszawa.
Lebedev O.A.   +5 more
core   +1 more source

Electroreception in marine fishes: chondrichthyans [PDF]

open access: yesJournal of Fish Biology, 2019
Abstract Electroreception in marine fishes occurs across a variety of taxa and is best understood in the chondrichthyans (sharks, skates, rays, and chimaeras). Here, we present an up‐to‐date review of what is known about the biology of passive electroreception and we consider how electroreceptive fishes might respond to electric and ...
Kyle C. Newton   +2 more
openaire   +2 more sources

List of all the Mediterranean chondrichthyan species with studies on their biological characteristics.

open access: yes, 2022
List of all the Mediterranean chondrichthyan species with studies on their biological characteristics.
Donna Dimarchopoulou (3925487)   +3 more
core   +1 more source

Bacterial community dynamics during embryonic development of the little skate (Leucoraja erinacea)

open access: yesAnimal Microbiome, 2021
Background Microbial transmission from parent to offspring is hypothesized to be widespread in vertebrates. However, evidence for this is limited as many evolutionarily important clades remain unexamined.
Katelyn Mika   +3 more
doaj   +1 more source

The Shark Basal Hypothalamus: Molecular Prosomeric Subdivisions and Evolutionary Trends

open access: yesFrontiers in Neuroanatomy, 2018
The hypothalamus is a key integrative center of the vertebrate brain. To better understand its ancestral morphological organization and evolution, we previously analyzed the segmental organization of alar subdivisions in the catshark Scyliorhinus ...
Gabriel N. Santos-Durán   +5 more
doaj   +1 more source

State of Shark and Ray Genomics in an Era of Extinction

open access: yesFrontiers in Marine Science, 2021
Chondrichthyan species (sharks, rays, skates, and chimeras) are a class of high ecological, economic, and cultural significance, and yet they are the most threatened taxa in the marine environment.
Jessica Pearce   +7 more
doaj   +1 more source

Resegmentation is an ancestral feature of the gnathostome vertebral skeleton

open access: yeseLife, 2020
The vertebral skeleton is a defining feature of vertebrate animals. However, the mode of vertebral segmentation varies considerably between major lineages.
Katharine E Criswell, J Andrew Gillis
doaj   +1 more source

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