Results 21 to 30 of about 7,778 (226)

Late Mesozoic marine Antarctic fishes: future perspectives based on the newly collections recovered in the Ameghino and López de Bertodano Formations [PDF]

open access: yesResearch & Knowledge, 2017
Nowadays, notothenioids are the teleostean group that dominates marine Antarctic waters. However, during the Mesozoic a diverse ichthyofauna inhabited the sea that surrounded Antarctic.
Soledad Gouiric-Cavalli   +10 more
doaj   +1 more source

Actinopterygii

open access: yes, 2020
Key to species of fishes from the Coto River basin, Pacific coast, Costa Rica The following key is based on our research and data available in the literature (Bussing 1987, 1998, Angulo et al. 2015 and Robertson & Allen 2015). 1 Body asymmetrical, strongly compressed laterally; both eyes on the same side of head..............................
Angulo, Arturo   +4 more
openaire   +2 more sources

Age at maturity of some fish species distributed in Turkish marine waters (Actinopterygii and Elasmobranchii) [PDF]

open access: yes, 2017
We collected data on the age at maturity (tm) and maximum reported age (tmax) for 153 stocks of marine fishes in Turkey, belonging to 59 species, 24 families and 2 classes (Actinopterygii and Elasmobranchii). Among Actinopterygii tm had an average of 1.8
Gündoğdu S.   +5 more
core   +1 more source

Diversity of Cretaceous continental actinopterygians from Argentina, South America [PDF]

open access: yesResearch & Knowledge, 2017
South America holds a signiicant number of continental ish-bearing deposits of Cretaceous age. The principal purpose of the current article is to illustrate the diversity of continental actinopterygian assemblages of the main Cretaceous localities from ...
P. Guillermina Giordano
doaj   +1 more source

Gladiopycnodontidae, a new family of pycnodontiform fi shes from the Late Cretaceous of Lebanon, with the description of three genera [PDF]

open access: yes, 2013
The osteology of Gladiopycnodus karami gen. et sp. nov., of Monocerichthys scheuchzeri gen. et sp. nov. and of Rostropycnodus gayeti gen. et sp. nov., three new fossil fishes from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail ...
Taverne, Louis   +4 more
core   +1 more source

A Comparison of the Innate and Adaptive Immune Systems in Cartilaginous Fish, Ray-Finned Fish, and Lobe-Finned Fish

open access: yesFrontiers in Immunology, 2019
The immune system is composed of two subsystems—the innate immune system and the adaptive immune system. The innate immune system is the first to respond to pathogens and does not retain memory of previous responses.
Nicole C. Smith   +2 more
doaj   +1 more source

The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

open access: yesActa Palaeontologica Polonica, 2022
The larger-bodied fish fauna of the Kishenehn Formation’s Coal Creek Member (Eocene, 43.5 Ma), northwestern Montana, is understudied because of a sampling bias towards small specimens. Small specimens (
JACOB D. GARDNER, MARK V.H. WILSON
doaj   +1 more source

Bilateral Asymmetry in Asterisci Otoliths of Cyprinion kais and C. macrostomum (Cypriniformes, Cyprinidae) collected from Tigris River, Şirnak Region, Türkiye

open access: yesZoodiversity, 2023
Otolith traits such as size and mass were investigated in 60 fish specimens of C. kais and C. macrostomum collected from the Tigris River, Şırnak region, Türkiye collected from September 2015 to December 2015.
L. A. Jawad   +3 more
doaj   +1 more source

Petroleuciscus esfahani, a new species of fish from central Iran (Actinopterygii: Cyprinidae) [PDF]

open access: yes, 2010
Coad, Brian W., Bogutskaya, Nina G. (2010): Petroleuciscus esfahani, a new species of fish from central Iran (Actinopterygii: Cyprinidae).
Bogutskaya, Nina G., Coad, Brian W.
core   +1 more source

First Record of the Lizardfish Synodus mundyi (Actinopterygii: Aulopiformes: Synodontidae) from Japan [PDF]

open access: yes, 2020
Nakayama, Naohide, Tamai, Takaaki (2020): First Record of the Lizardfish Synodus mundyi (Actinopterygii: Aulopiformes: Synodontidae) from Japan. Species Diversity 25 (1): 55-60, DOI: 10.12782/specdiv.25.55, URL: http://dx.doi.org/10.12782/specdiv.25 ...
Tamai, Takaaki, Nakayama, Naohide
core   +1 more source

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