Results 41 to 50 of about 1,766 (185)

Otolith and vertebral morphology of marine atherinid species (Atheriniformes, Atherinopsidae) coexisting in the southwestern Atlantic Ocean

open access: yesCiencias Marinas, 2010
Studies on marine ecosystems rely on the identification of fish prey species of piscivores (fish, aquatic mammals, and aquatic birds) based on their bones and otoliths. The stomach contents of piscivores show predation on marine atherinids of commercial
A D Tombari   +3 more
doaj   +1 more source

Germ cell transplantation using sexually competent fish: an approach for rapid propagation of endangered and valuable germlines. [PDF]

open access: yesPLoS ONE, 2009
The transplantation of germ cells into adult recipient gonads is a tool with wide applications in animal breeding and conservation of valuable and/or endangered species; it also provides a means for basic studies involving germ cell (GC) proliferation ...
Sullip K Majhi   +4 more
doaj   +1 more source

The Use of Chloride, Citric and Ascorbic Acid Dip and Packaged Film to Extend the Shelf Life of Pejerrey (Odonthested bonaerensis) during Storage at Different Temperatures [PDF]

open access: yes, 2014
The objective of this study was to analyze the effect of chloride, citric and ascorbic acid dip treatments in conjunction with two types of packaging films (with high and low gas permeability) on microbial growth in samples of pejerrey fillets ...
Bigeon, Gisela   +3 more
core   +2 more sources

Can larvae of a marine fish adapt to ocean acidification? Evaluating the evolutionary potential of California Grunion (Leuresthes tenuis)

open access: yesEvolutionary Applications, Volume 12, Issue 3, Page 560-571, March 2019., 2019
Abstract Ocean acidification can reduce the growth and survival of marine species during their larval stages. However, if populations have the genetic capacity to adapt and increase their tolerance of low pH and high pCO2 levels, this may offset the harmful effects of ocean acidification.
Alexander J. Tasoff, Darren W. Johnson
wiley   +1 more source

Intraspecific karyotypic variation in the silverside fish Chirostoma humboldtianum (Atheriniformes: Atherinopsidae)

open access: yesHidrobiológica, 2016
"Within its genus, Chirostoma humboldtianum is one of the species with the widest distribution, inhabiting lake and pond environments along the Lerma-Santiago basin in the Mexican Plateau. Although the species is of great ichthyological, economic, and cultural relevance, factors related to human activity such as habitat loss, pollution, overfishing ...
Irma Urbina-Sánchez   +4 more
openaire   +4 more sources

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniforme: Atherinopsidae)

open access: yesRevista de Biología Tropical, 2007
The structural and ultrastructural features of gonads from endemic Mexican fish have received scarce attention. This study describes the histological and ultrastructural characteristics of the oocyte in Chirostoma humboldtianum. The ovary is asynchronic, and as such, most phases of oocyte development are found in the same ovary. The complete process of
Cárdenas Reygadas, Rodolfo   +5 more
openaire   +15 more sources

Changes in Fish Communities of Lake Ontario Coastal Wetlands before and after Remedial Action Plans

open access: yesInternational Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
We conducted a change‐detection analysis to determine if improvements in the habitat quality of coastal wetlands could be attributed to Remedial Action Plans (RAPs) of Lake Ontario. We used a 5‐km buffer relative to each recent site to “resample” an existing database of spawning/nursery habitat from the early 1980s to derive a “historic” species list ...
Titus Seilheimer   +4 more
wiley   +1 more source

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

open access: yes, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan   +2 more
core  

A contribution to the checklist of fishes of San Luis province, Argentina [PDF]

open access: yes, 2015
San Luis province presents arheic and endorheic basins that are poorly understood in terms of their ichthyological composition. The samples taken recently from the main basins of this province have yielded data of undisputed biogeographic value for the ...
Bogan, Sergio   +5 more
core   +4 more sources

Persisting at the Edge of Ecological Collapse: The Impact of Urbanization on Fish and Amphibian Communities From Lake Xochimilco

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
ABSTRACT Freshwater ecosystems are globally threatened by habitat loss, pollution, and invasive species, all of which are particularly acute in urban areas. To assess the impacts of urbanization on freshwater biodiversity—specifically the effects of alien species on native primary aquatic vertebrates—we investigated the World Heritage Site, Lake ...
Alejandro Maeda‐Obregon   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy