Results 1 to 10 of about 78 (66)

Temperature and salinity preferences of endangered Delta Smelt (Hypomesus transpacificus, Actinopterygii, Osmeridae)

open access: yesScientific Reports, 2022
Temperature and salinity often define the distributions of aquatic organisms. This is at least partially true for Delta Smelt, an imperiled species endemic to the upper San Francisco Estuary.
Tien-Chieh Hung   +2 more
exaly   +2 more sources

Size, fecundity and condition factor changes in endangered delta smelt Hypomesus transpacificus over 10 generations in captivity

open access: yesAquaculture, Fish and Fisheries, 2023
The once abundant delta smelt Hypomesus transpacificus is now on the verge of extinction. At the UC Davis Fish Conservation and Culture Laboratory, a refuge population has been maintained since 2008 as a safeguard against extinction and to breed and ...
Moshiur Rahman   +2 more
exaly   +2 more sources

The transcriptome-wide effects of exposure to a pyrethroid pesticide on the Critically Endangered delta smelt Hypomesus transpacificus

open access: yesEndangered Species Research, 2015
Research into the effects of contaminants on fishes is often conducted on well-studied model test species, whose responses may be different than those of endangered species.
Nann Fangue   +2 more
exaly   +3 more sources

Reproductive strategy of Delta Smelt Hypomesus transpacificus and impacts of drought on reproductive performance.

open access: yesPLoS ONE, 2022
Understanding reproductive biology and performance of fish is essential to formulate effective conservation and management programs. Here, we studied reproductive strategies of female Delta Smelt Hypomesus transpacificus, an endangered fish species in ...
Tomofumi Kurobe   +6 more
doaj   +2 more sources

Chromosome-Level Genome Assembly of Protosalanx chinensis and Response to Air Exposure Stress

open access: yesBiology, 2023
Protosalanx chinensis is a suitable particular species for genetic studies on nearly scaleless skin, transparency and high sensitivity to hypoxia stress. Here, we generated a high-quality chromosome-level de novo assembly of P. chinensis.
Yanfeng Zhou   +5 more
doaj   +1 more source

Vital dye immersion evaluations with juvenile delta smelt

open access: yesAquaculture, Fish and Fisheries, 2023
Immersion‐based vital dyes were tested as a marking method for use in larval smelt mark–recapture studies. We assessed five fluorescent dyes as a mark for juvenile osmerids: 4‐Di‐1‐ASP, BODIPY FL C12, BODIPY 505/515, Nile red, and calcein.
Virginia Afentoulis   +5 more
doaj   +1 more source

Captive-reared Delta Smelt (Hypomesus transpacificus) exhibit high survival in natural conditions using in situ enclosures.

open access: yesPLoS ONE, 2023
Conservation of endangered fishes commonly includes captive breeding, applied research, and management. Since 1996, a captive breeding program has existed for the federally threatened and California endangered Delta Smelt Hypomesus transpacificus, an ...
Melinda R Baerwald   +14 more
doaj   +1 more source

Salinity Changes the Dynamics of Pyrethroid Toxicity in Terms of Behavioral Effects on Newly Hatched Delta Smelt Larvae

open access: yesToxics, 2021
Salinity can interact with organic compounds and modulate their toxicity. Studies have shown that the fraction of pyrethroid insecticides in the aqueous phase increases with increasing salinity, potentially increasing the risk of exposure for aquatic ...
Amelie Segarra   +6 more
doaj   +1 more source

Visual, spectral, and microchemical quantification of crystalline anomalies in otoliths of wild and cultured delta smelt

open access: yesScientific Reports, 2022
Developmental abnormalities in otoliths can impact growth and survival in teleost fishes. Here, we quantified the frequency and severity of developmental anomalies in otoliths of delta smelt (Hypomesus transpacificus), a critically endangered estuarine ...
Levi S. Lewis   +15 more
doaj   +1 more source

Delta Smelt stress responses during fish salvage at the John E. Skinner Delta Fish Protective Facility, California

open access: yesCalifornia Fish and Wildlife Journal, 2023
The John E. Skinner Delta Fish Protective Facility (Skinner Fish Facility) diverts entrained fish from the State Water Project’s pumping facilities in the southern Sacramento-San Joaquin Delta (the Delta) and transports them via tanker trucks away from ...
Virginia Afentoulis   +3 more
doaj   +1 more source

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