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
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
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
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
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]
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
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
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
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
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
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

