Results 1 to 10 of about 298 (142)

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

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   +7 more sources

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

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   +7 more sources

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

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   +6 more sources

A pilot study of the performance of captive‐reared delta smelt Hypomesus transpacificus in a semi‐natural environment [PDF]

open access: yesJournal of Fish Biology, 2019
AbstractA captive breeding programme was developed in 2008 for delta smelt Hypomesus transpacificus in reaction to dramatic population decline over several decades. We took 526 sub‐adult captive‐reared delta smelt and cultured them for 200 days without providing artificial food or water quality management to assess their performance once released in ...
Tien-Chieh Hung   +2 more
exaly   +7 more sources

Linking mechanistic and behavioral responses to sublethal esfenvalerate exposure in the endangered delta smelt; Hypomesus transpacificus (Fam. Osmeridae) [PDF]

open access: yesBMC Genomics, 2009
Background The delta smelt (Hypomesus transpacificus) is a pelagic fish species listed as endangered under both the USA Federal and Californian State Endangered Species Acts and considered an indicator of ecosystem health in its habitat range, which is ...
Wintz Henri   +7 more
doaj   +7 more sources

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

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   +5 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   +3 more sources

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

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   +2 more sources

Developmental Staging and Salinity Tolerance in Embryos of the Delta Smelt, Hypomesus transpacificus. [PDF]

open access: yesAquaculture, 2019
Delta smelt (Hypomesus transpacificus) is a critically endangered species endemic to the San Francisco Bay Delta (SFBD). Important for the conservation of this species is understanding the physiological and ecological impacts contributing to their population decline, and current studies lack information on embryonic development.
Romney ALT   +6 more
europepmc   +6 more sources

Gross morphology, histology, and ultrastructure of the olfactory rosette of a critically endangered indicator species, the Delta Smelt, Hypomesus transpacificus. [PDF]

open access: yesJ Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2021
AbstractThe Delta Smelt (Hypomesus transpacificus) is a small, semi-anadromous fish native to the San Francisco Bay-Delta Estuary and has been declared as critically endangered. Their olfactory biology, in particular, is poorly understood and a basic description of their sensory anatomy is needed to advance our understanding of the sensory ecology of ...
Triana-Garcia PA   +3 more
europepmc   +6 more sources

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