Results 141 to 150 of about 277 (158)
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Environmental Biology of Fishes, 2008
Menidia riojai is endemic of the Lerma River headwaters considered critically endangered because its populations have been severely fragmented.
J. Fernando Méndez-Sánchez +4 more
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Menidia riojai is endemic of the Lerma River headwaters considered critically endangered because its populations have been severely fragmented.
J. Fernando Méndez-Sánchez +4 more
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Copeia, 2003
Abstract Population structure of the California grunion, Leuresthes tenuis, was asssessed by examining patterns of allozymic variation. Six specimens from each of four southern California locations (Goleta, Malibu, San Pedro, and Imperial Beach) were examined electrophoretically for the gene products of 55 presumptive loci; nine loci were found to be ...
Ingo H. Gaida +5 more
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Abstract Population structure of the California grunion, Leuresthes tenuis, was asssessed by examining patterns of allozymic variation. Six specimens from each of four southern California locations (Goleta, Malibu, San Pedro, and Imperial Beach) were examined electrophoretically for the gene products of 55 presumptive loci; nine loci were found to be ...
Ingo H. Gaida +5 more
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Threatened fishes of the world: Poblana alchichica (de Buen, 1945) (Atheriniformes: Atherinopsidae)
Environmental Biology of Fishes, 2009Common names: Alchichica silverside (English), charal de Alchichica (Spanish). Conservation status: Endangered, NOM-059-ECOL-2001 (SEMARNAT 2002); and critically endangered (CR) (A1ac+2c, B1+2c, C2b) (IUCN 2008). Identification: D 4–5; A 13–15; P 14–15. Gill rakers on the first gill arch, 13–16.
Javier Alcocer +3 more
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Copeia, 2006
Abstract Vertebral number is used frequently as a diagnostic species character in fishes, but it varies not only among but also within species. Much of the variation in vertebral number is associated with geographic gradients such as latitude, and it likely reflects both environmental and genetic influences on phenotype. Hence, comparison of intra- and
Kazunori Yamahira +2 more
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Abstract Vertebral number is used frequently as a diagnostic species character in fishes, but it varies not only among but also within species. Much of the variation in vertebral number is associated with geographic gradients such as latitude, and it likely reflects both environmental and genetic influences on phenotype. Hence, comparison of intra- and
Kazunori Yamahira +2 more
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Community structure of metazoan parasites of silverside, Odontesthes bonariensis (Pisces, Atherinopsidae) from Argentina [PDF]
Iheringia - Serie Zoologia, 2012 The helminth communities of silverside, Odontesthes bonariensis (Valenciennes, 1835), from two Argentinean lagoons were studied and compared at component community and infracommunity levels. Nine helminth species were found: five digeneans (Austrodiplostomum cf. mordax, Ascocotyle (Phagicola) cf.
exaly +6 more sources