Results 11 to 20 of about 179 (116)

Small‐bodied fish species from the western United States will be under severe water stress by 2040

open access: yesConservation Science and Practice, Volume 5, Issue 1, January 2023., 2023
Regions with highest anticipated water stress are low in overall freshwater biodiversity but high rates of imperiled species. Abstract Human need to appropriate freshwater in combination with climate change has intensified the rapid decline in freshwater biodiversity.
Sebastian Theis   +3 more
wiley   +1 more source

The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States and Mexico

open access: yesJournal of Biogeography, Volume 49, Issue 6, Page 1193-1203, June 2022., 2022
Abstract Aim Migratory freshwater fishes are those that must access discrete habitats to complete their life cycles. Freshwater fish migrations occur around the world and provide numerous ecosystem services for humans and natural systems; however, many migratory species are in decline globally.
Emily M. Dean   +19 more
wiley   +1 more source

Development and validation of an environmental DNA protocol to detect an invasive Caribbean freshwater fish, the guppy (Poecilia reticulata)

open access: yesEnvironmental DNA, Volume 4, Issue 2, Page 304-310, March 2022., 2022
In this study, we present a description of a newly developed environmental DNA (eDNA) primer–probe assay for use with quantitative PCR (qPCR) testing to detect a highly invasive Caribbean freshwater guppy species of worldwide interest: Poecilia reticulata. Not only is P.
Sierra N. Smith   +6 more
wiley   +1 more source

Differences in ontogenetic and diurnal microhabitat selection by sympatric live‐bearing fish species with different reproductive modes

open access: yesFreshwater Biology, Volume 66, Issue 9, Page 1709-1720, September 2021., 2021
Abstract A pregnancy imposes a heavy reproductive burden on females. Some live‐bearing species have evolved reproductive adaptations to reduce this burden, which may influence their ability to use specific microhabitats. We investigate whether two such reproductive adaptations, placentation (embryo provisioning via a placenta) and superfetation (the ...
Andres Hagmayer   +2 more
wiley   +1 more source

Selective Feeding on Zooplankton by LarvalSkiffia multipunctata(Goodeidae) [PDF]

open access: yesJournal of Freshwater Ecology, 2004
ABSTRACT We quantified the patterns of zooplanktonic prey (Brachionus calyciflorus, Daphnia pulex, and Moina macrocopa) selection and capture behavior during the early larval stages (first seven weeks) of S. multipunctata. Encounters with B. calyciflorus decreased with increasing larval age of S, multipunctata.
Luis H. Escalera-Vázquez   +3 more
openaire   +1 more source

Regional patterns of genetic structure and environmental differentiation in willow populations (Salix humboldtiana Willd.) from Central Mexico

open access: yesEcology and Evolution, Volume 9, Issue 17, Page 9564-9579, September 2019., 2019
The geological and climatological factors that have shaped the genetic diversity and structure of a willow species (Salix humboldtiana) in three basins of Central Mexico were studied. It was found that the genetic structure of the species is strongly associated with the current and historical geological configuration of the basins and the rivers within
Mariana S. Hernández‐Leal   +3 more
wiley   +1 more source

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

open access: yesAquatic 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   +3 more
wiley   +1 more source

Pathology Survey on a Captive‐Bred Colony of the Mexican Goodeid, Nearly Extinct in the Wild, Zoogoneticus tequila (Webb & Miller 1998)

open access: yesThe Scientific World Journal, Volume 2013, Issue 1, 2013., 2013
The Mexican Goodeid, Zoogoneticus tequila, is considered nearly extinct in the wild and it is maintained in captivity by the nonprofit international “Goodeid Working Group.” The unique Italian colony has produced about 180 fish so far. The observable diseases were registered and some fish were submitted, immediately after spontaneous death, to ...
Alessio Arbuatti   +4 more
wiley   +1 more source

Using Noninvasive Magnetic Resonance Imaging for the Visualization of Embryos of the Viviparous Goodeidae (Pisces; Cyprinodontiformes) at Different Developmental Stages

open access: yesInternational Journal of Zoology, Volume 2026, Issue 1, 2026.
The study of prenatal interactions of embryonic viviparous Cyprinodontidae (Pisces) can illuminate the evolution of this reproductive mode. Yet the small size, relative scarcity, and conservation status severely limit this potential. Magnetic resonance imaging (MRI) can solve or palliate these limitations.
Claudia Olivera-Tlahuel   +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

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

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