Results 1 to 10 of about 20,442,526 (154)

DIGESTIBILIDAD in vitro DE INGREDIENTES PROTEÍNICOS EN LA MOJARRA CASTARRICA Cichlasoma urophthalmus [PDF]

open access: yesEcosistemas y Recursos Agropecuarios, 2014
El cultivo de Cichlasoma urophthalmus ha observado un lento desarrollo, ya que actualmente no dispone de un alimento balanceado que contenga los ingredientes apropiados para su crecimiento.
Carlos Alberto Cuenca Soria   +6 more
doaj   +5 more sources

Genetic evidence for multiple sources of the non-native fish Cichlasoma urophthalmus (Günther; Mayan Cichlids) in southern Florida. [PDF]

open access: yesPLoS One, 2014
The number and diversity of source populations may influence the genetic diversity of newly introduced populations and affect the likelihood of their establishment and spread. We used the cytochrome b mitochondrial gene and nuclear microsatellite loci to
Harrison E   +6 more
europepmc   +10 more sources

Knocking back invasions: variable resistance and resilience to multiple cold spells in native vs. nonnative fishes [PDF]

open access: yesEcosphere, Volume 7, Issue 6, June 2016., 2016
Extreme climate events can interact synergistically with invasions to dramatically alter ecosystem structure, function, and services. Yet, the effects of extreme climate events on species invasions remain unresolved.
Blewett D. A.   +10 more
core   +2 more sources

Ingestion Rate, Prey Selectivity, and Growth of Larval Vieja zonata (Teleostei: Cichlidae) Co-Fed Rotifers with Cladocerans. [PDF]

open access: yesAquac Nutr
The study of fish larval nutrition is important as dietary requirements change significantly with growth. Vieja zonata is a cichlid species that is endemic to Mexico. In this study, we investigated the ingestion rate, prey selectivity, and growth of V. zonata larvae that were fed on prey cultured with and without probiotics.
Contreras-Tapia RA   +5 more
europepmc   +2 more sources

Competition from sea to mountain: Interactions and aggregation in low-diversity monogenean and endohelminth communities in twospot livebearer Pseudoxiphophorus bimaculatus (Teleostei: Poeciliidae) populations in a neotropical river. [PDF]

open access: yesEcol Evol, 2020
The results of this work suggest that interspecific competition can occur in species‐poor, nonsaturated communities among specialist dominant species. Our analyses suggest also that aggregation is an important factor to determine local richness of parasites in fish populations and that intraspecific aggregation allows the coexistence of species in the ...
Salgado-Maldonado G   +7 more
europepmc   +2 more sources

The effects of temperature and flooding duration on the structure and magnitude of a floodplain prey subsidy

open access: yesFreshwater Biology, Volume 68, Issue 9, Page 1518-1529, September 2023., 2023
Abstract Riverine floodplains serve as an important link between terrestrial and aquatic systems, as the rising and falling of water drive spatial food web subsidies that are critical to the functioning and stability of ecosystems. As these systems are increasingly impacted by hydrological alterations and climate change, it is important to understand ...
Ryan J. Rezek   +7 more
wiley   +1 more source

The role of refuges in biological invasions: A systematic review

open access: yesGlobal Ecology and Biogeography, Volume 32, Issue 8, Page 1244-1271, August 2023., 2023
Abstract Aim Ecological refuges buffer organisms against stressors and mediate a range of species interactions. However, their role in the context of biological invasions has yet to be synthesized, despite the increasing prevalence and impact of non‐native species.
James S. Boon   +3 more
wiley   +1 more source

BioLake: A first assessment of lake temperature‐derived bioclimatic predictors for aquatic invasive species

open access: yesEcosphere, Volume 14, Issue 7, July 2023., 2023
Abstract Aquatic invasive species (AIS) present major ecological and economic challenges globally, endangering ecosystems and human livelihoods. Managers and policy makers thus need tools to predict invasion risk and prioritize species and areas of concern, and they often use native range climate matching to determine whether a species could persist in
Ryan C. Burner   +4 more
wiley   +1 more source

Trophic ecology of co‐occurring fishes in the Sundays River Valley irrigation ponds, assessed using stable isotope and gut content analyses

open access: yesJournal of Fish Biology, Volume 102, Issue 5, Page 1191-1205, May 2023., 2023
Abstract The analysis of food web structures has increased the understanding of the dynamics of organisms belonging to different trophic levels. In this study, the diet of two native species, Glossogobius callidus and Gilchristella aestuaria, was assessed in the presence of two non‐native species, Oreochromis mossambicus and Gambusia affinis, in ...
Lubabalo Mofu   +4 more
wiley   +1 more source

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