Results 41 to 50 of about 277 (158)

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

Ciencias 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, A Gosztonyi, D D Echeverría, A V Volpedo   +3 more
doaj   +1 more source

Impacts of Ocean Acidification on Reproduction and Early Life Development in Marine Teleost Fish—A Synthesis

Fish and Fisheries, Volume 27, Issue 5, Page 1176-1192, September 2026.
ABSTRACT Ocean acidification (OA) remains a major and underexplored threat to marine fishes, particularly regarding reproductive physiology and early life stages (ELS). Although research over the past 15 years has documented diverse OA effects, substantial knowledge gaps persist.
Rebecca J. Bridge, Benjamin T. McClelland, Silvana N. R. Birchenough, Martina H. Stiasny   +3 more
wiley   +1 more source

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

Revista 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, Chávez, Mónica, González, José Luis, Aley, Patricia, Espinoza, Jesús, Jiménez García, Luis Felipe   +5 more
openaire   +15 more sources

Spinitectus osorioi (Nematoda: Cystidicolidae) in the Mexican endemic fish Atherinella alvarezi (Atherinopsidae) from the Atlantic River drainage system in Chiapas, Southern Mexico

Memorias do Instituto Oswaldo Cruz, 2010
Specimens of Spinitectus osorioi Choudhury and Pérez-Ponce de León, an intestinal nematode species previously considered to be specific to Chirostoma spp and endemic to some lakes in the Pacific drainage in Michoacán, were collected from the freshwater ...
František Moravec, Guillermo Salgado-Maldonado, Juan M Caspeta-Mandujano   +2 more
doaj   +1 more source

Mexican Freshwater Fish: Identifying Conservation Priorities and High‐Risk Areas for Fisheries Under Climate Change

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Freshwater fish are essential components of aquatic ecosystems, providing key ecological functions and supporting livelihoods. Climate change poses a significant threat to freshwater biodiversity; consequently, both its conservation and the food security it sustains may be at risk.
Rafael Sebastián Muratalla‐Miranda, Luis Fernando Del Moral‐Flores, Ángela P. Cuervo‐Robayo, Carolina Ureta   +3 more
wiley   +1 more source

The Abrupt and Persistent Decline in Recruitment Success in Northeast Arctic Cod: A Review of Probable Causes

Fish and Fisheries, Volume 27, Issue 3, Page 643-659, May 2026.
ABSTRACT Most of the previously large cod stocks in the North Atlantic are depleted to very low levels. A notable exception has been the Northeast Arctic cod inhabiting the Barents Sea. This cod stock reached a record high level around 2013, but since then has declined sharply, with older fish being fished out and few new recruits entering the stock ...
Edda Johannesen, Geir Ottersen, Florian Berg, Bjarte Bogstad, Padmini Dalpadado, Côme Denechaud, Elena Eriksen, Maria Fossheim, Håvard Guldbrandsen Frøysa, Torild Johansen, Knut Korsbrekke, Even Moland, Esben Moland Olsen, Anne Britt Sandø, Georg Skaret, Morten Skogen, Frode Vikebø   +16 more
wiley   +1 more source

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

Evolutionary 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)

Hidrobiológica, 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, Carmen Guadalupe Paniagua-Chávez, Reyna Fierro, Gerardo Figueroa-Lucero, Irene de los Angeles Barriga-Sosa   +4 more
openaire   +4 more sources

Comparing Aquatic Environmental DNA Collection Methods Across a Diel Cycle in a Lotic System

Environmental DNA, Volume 8, Issue 2, March/April 2026.
Water samples were collected over 25 h from the Tangipahoa River, Louisiana, using active and passive environmental DNA methods to detect fish assemblages. Active sampling involved collecting water samples at hourly intervals for 25 h, whereas passive sampling deployed a stationary filter for 25 h.
Camden E. Oathout, Claire E. Gard, Tyler Steven Coleman, Kyle R. Piller   +3 more
wiley   +1 more source

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

Environmental 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, Elizabeth L. Clare, Luis Zambrano, Omar Domínguez‐Domínguez, Gavin J. Horsbrough, Paul Parsons, Deborah A. Dawson, Benjamin Tapley, Christopher J. Michaels, Víctor H. Reynoso, Jeffrey W. Streicher, David J. Murrell, Julia J. Day   +12 more
wiley   +1 more source