Results 51 to 60 of about 3,916 (251)

A new record confirms the occurrence of Aphanius mesopotamicus Coad, 2009, in southwestern Iran (Actinopterygii: Cyprinodontidae) [PDF]

open access: yesCheck List, 2012
We report the occurrence of Mesopotamian tooth carp, Aphanius mesopotamicus Coad 2009, in a southern branch of the Karkheh River, 10 km west of Hoor-Al-Azim Wetland.
Yazdan Keivany   +2 more
doaj   +3 more sources

Biochemical differentiation between some genera of African Cyprinodontidae

open access: yesJournal of Zoological Systematics and Evolutionary Research, 2009
The polymorphism of 12 loci encoding enzymes has been investigated in 11 species of tropical freshwater fishes of the family Cyprinodontidae. These species can be divided into six genetic groups (A to F) on the basis of NEI'S genetic distances. The genetic differentiation between these groups is equivalent and very high.
J. F. AGNESE, R. ROMAND, N. PASTEUR
openaire   +1 more source

Marine water environmental DNA metabarcoding provides a comprehensive fish diversity assessment and reveals spatial patterns in a large oceanic area

open access: yesEcology and Evolution, Volume 10, Issue 14, Page 7560-7584, July 2020., 2020
eDNA samples provide information on fish diversity in a broad‐scale marine area, detecting almost ten times more fish species compared with pelagic trawling, including some considered elusive or difficult to capture with traditional fishing methods.
Natalia Fraija‐Fernández   +7 more
wiley   +1 more source

The role of freshwater bioacoustics in ecological research

open access: yesWIREs Water, Volume 7, Issue 3, May/June 2020., 2020
Fish are the focal study species in the majority of freshwater bioacoustic studies, which often focus on a single species that is recorded in laboratory aquaria. Despite their significant contributions to soundscape composition and ecosystem function, arthropods were poorly represented in the research literature.
Jack A. Greenhalgh   +3 more
wiley   +1 more source

The effects of parasitism and body length on positioning within wild fish shoals [PDF]

open access: yes, 2002
The influence of body length and parasitism on the positioning behaviour of individuals in wild fish shoals was investigated by a novel means of capturing entire shoals of the banded killifish (Fundulus diaphanus, Lesueur) using a grid-net that ...
A. J. W. Ward   +17 more
core   +2 more sources

Movimiento entre hábitats de la barracuda Sphyraena barracuda, determinado por aproximaciones tróficas en el Caribe occidental

open access: yesRevista Mexicana de Biodiversidad, 2018
Se evidenciaron movimientos entre hábitats relacionados con cambios tróficos y con el crecimiento de la barracuda, Sphyraena barracuda (Edwards, 1771), por medio de análisis de contenido estomacal e isotopía estable, en la bahía de Chetumal/Corozal, el ...
Paola Torres-Chávez   +3 more
doaj   +1 more source

Prey body size mediates the predation risk associated with being "odd" [PDF]

open access: yes, 2014
Despite selection pressures on prey animals to maintain phenotypically homogeneous groups, variation in phenotype within animal groups is commonly observed.
Downing, Beatrice   +2 more
core   +2 more sources

Salinity as the main factor structuring small-bodied fish assemblages in hydrologically altered Mediterranean coastal lagoons

open access: yesScientia Marina, 2013
In the Ebro Delta coastal lagoons, one of the main anthropogenic pressures is the artificial freshwater input. Each coastal lagoon has different water management schemes causing profound changes in its physicochemical characteristics.
Sílvia Rodríguez-Climent   +2 more
doaj   +1 more source

Present distribution of the threatened killifish Aphanius fasciatus (Actinopterygii, Cyprinodontidae) in the Maltese Islands [PDF]

open access: yes, 2002
A survey of the nine localities from which the threatened Killifish Aphanius fasciatus has been recorded in the Maltese Islands showed that large and thriving populations exist at Salina, at the Simar and Ghadira bird sanctuaries and in reservoirs at ...
Arcidiacono, Isabella   +3 more
core  

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