Results 41 to 50 of about 853 (176)

Physiological stress biomarkers reveal stocking density effects in late larval Delta Smelt (Hypomesus transpacificus) [PDF]

open access: yesAquaculture, 2016
Abstract Suboptimal fish stocking densities in experimental systems may elicit stress responses that can affect experimental results. Fish species, age and size, water chemistry and flow, and physical characteristics of the experimental system (e.g., tank, cage) are among the parameters to be considered when determining stocking densities.
Matthias Hasenbein   +4 more
openaire   +3 more sources

Assessments at multiple levels of biological organization allow for an integrative determination of physiological tolerances to turbidity in an endangered fish species. [PDF]

open access: yes, 2016
Turbidity can influence trophic levels by altering species composition and can potentially affect fish feeding strategies and predator-prey interactions.
Connon, Richard E   +6 more
core   +1 more source

Ontogeny influences sensitivity to climate change stressors in an endangered fish. [PDF]

open access: yes, 2014
Coastal ecosystems are among the most human-impacted habitats globally, and their management is often critically linked to recovery of declining native species.
Castillo, G   +6 more
core   +2 more sources

Transcriptional flexibility during thermal challenge corresponds with expanded thermal tolerance in an invasive compared to native fish

open access: yesEvolutionary Applications, 2021
Capacity to cope with warming temperatures is a key determining factor of species' persistence under global climate change. Many successful invasive species have heightened thermal tolerance relative to their native counterparts, which may provide ...
Lisa M. Komoroske   +8 more
doaj   +1 more source

Delta Smelt (Hypomesus transpacificus) Exhibit Wide Variation in Spawning Behavior: An Investigation of Substrate Type, Diel Timing, and Participants [PDF]

open access: yesEstuaries and Coasts, 2021
AbstractStudies of cultured populations can be invaluable to the conservation of imperiled species for which little is known and whose very low abundance in the wild can preclude studies with robust sample sizes. For example, in endangered delta smelt (Hypomesus transpacificus), conservation measures developed to mitigate population decline are ...
Yi-Jiun Jean Tsai   +4 more
openaire   +1 more source

MaxTemp: A Method to Maximise Precision of the Temporal Method for Estimating N<sub>e</sub> in Genetic Monitoring Programs. [PDF]

open access: yesMol Ecol Resour
ABSTRACT We introduce a new software program, MaxTemp, that increases precision of the temporal method for estimating effective population size (Ne) in genetic monitoring programs, which are increasingly used to systematically track changes in global biodiversity.
Waples RS   +3 more
europepmc   +2 more sources

Sublethal salinity stress contributes to habitat limitation in an endangered estuarine fish. [PDF]

open access: yes, 2016
As global change alters multiple environmental conditions, predicting species' responses can be challenging without understanding how each environmental factor influences organismal performance.
Connon, Richard E   +6 more
core   +1 more source

Identifying Environmental Factors Limiting Recovery of an Imperiled Estuarine Fish

open access: yesFrontiers in Ecology and Evolution, 2022
Correctly identifying the environmental factors that limit population growth and recovery of imperiled species is an essential element of any targeted conservation program.
Scott A. Hamilton, Dennis D. Murphy
doaj   +1 more source

Consequences of temperature and temperature variability on swimming activity, group structure, and predation of endangered delta smelt [PDF]

open access: yes, 2019
The effects of water temperature on individual and group movement behaviour in prey fish can affect ecological interactions such as competition and predation, but how variability in temperature influence fish behaviour is less understood.
Baxter, RD   +7 more
core   +1 more source

Efficacy of a sensory deterrent and pipe modifications in decreasing entrainment of juvenile green sturgeon (Acipenser medirostris) at unscreened water diversions. [PDF]

open access: yes, 2014
Water projects designed to extract fresh water for local urban, industrial and agricultural use throughout rivers and estuaries worldwide have contributed to the fragmentation and degradation of suitable habitat for native fishes.
Bandeh, Hossein   +7 more
core   +1 more source

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