Results 131 to 140 of about 488 (165)

Salinity Tolerances and Biomarkers of Salt Stress in Longfin and Delta Smelt

, 2014
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Characterizing the stress response in juvenile Delta smelt exposed to multiple stressors

Comparative Biochemistry and Physiology Part A, Molecular & Integrative Physiology, 2022
The Delta Smelt (Hypomesus transpacificus), once an abundant fish endemic to the Sacramento-San Joaquin Estuary, is now on the brink of extinction. Due to the high sensitivity of this species, knowledge of their stress response will be vital to their future survival and sustainability.
Nann Fangue, Tien-Chieh Hung, Christina Pasparakis   +2 more
exaly   +3 more sources

Physiological effects of salinity on Delta Smelt, Hypomesus transpacificus

Fish Physiology and Biochemistry, 2015
Abiotic factors like salinity are relevant to survival of pelagic fishes of the San Francisco Bay Estuary. We tested the effects of 4 parts per thousand (ppt) salinity increases on Delta Smelt (DS) in a laboratory experiment simulating salinity increases that might occur around the low-salinity zone (LSZ) (
Tien-Chieh Hung, Swee Teh, Hung Tien-Chieh   +2 more
exaly   +3 more sources

A novel and versatile flash-freezing approach for evaluating the health of Delta Smelt [PDF]

Aquatic Toxicology, 2016
A common approach used to assess environmental impacts in aquatic environments is to measure indicators of stress (biomarkers) and condition of fish within ecosystems. Particularly in estuarine ecosystems with multiple stressors, it is often desirable to quantify a suite of biological endpoints that (1) reflect fish condition at several levels of ...
Tomofumi Kurobe, Bruce Hammock, Swee Teh   +2 more
exaly   +3 more sources

Evaluating the Performance of a Small-Scale Culture System for Delta Smelt

North American Journal of Aquaculture, 2022
Abstract Since 2008, a refuge population of Delta Smelt Hypomesus transpacificus has been cultured in a conservation hatchery to help protect the imperiled species from extinction. Culture techniques for this population have thus far focused on maximizing genetic diversity in conjunction with large-scale operations (40 larval tanks, 5 ...
Yi-Jiun Jean Tsai, Luke Ellison, Troy Stevenson, William J. Mulvaney, Evan W. Carson, Tien-Chieh Hung   +5 more
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Spawning Behavior of Cultured Delta Smelt in a Conservation Hatchery

North American Journal of Aquaculture, 2015
Abstract Understanding reproductive behavior of sensitive species is crucial for their conservation. The Delta Smelt Hypomesus transpacificus is a federally threatened, state-endangered fish whose reproductive behavior is poorly understood.
Melanie LaCava, Kathleen Fisch, Meredith Nagel, Joan C Lindberg, Bernie May, Amanda J Finger   +5 more
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Tidal Wetlands Associated with Foraging Success of Delta Smelt

Estuaries and Coasts, 2019
Delta smelt (Hypomesus transpacificus), an annual fish endemic to the San Francisco Estuary (SFE), is imperiled. One recovery strategy is to restore tidal wetlands, thereby increasing productivity and prey abundance. However, the link between tidal wetlands and foraging of delta smelt is not yet established.
Bruce G. Hammock, Rosemary Hartman, Steven B. Slater, April Hennessy, Swee J. Teh   +4 more
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Evaluation of Calcein and Photonic Marking for Cultured Delta Smelt

North American Journal of Fisheries Management, 2014
Abstract The Delta Smelt Hypomesus transpacificus is a protected osmerid endemic to the San Francisco estuary of California. We conducted laboratory tests on marked versus unmarked juvenile adult smelt to evaluate (1) calcein mark intensity and postmarking survival for juveniles and adults, (2) photonic mark retention and survival of ...
Gonzalo Castillo, Jerry Morinaka, Robert Fujimura, Jason DuBois, Bradd Baskerville-Bridges, Joan Lindberg, Galen Tigan, Luke Ellison, James Hobbs   +8 more
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TaqMan assays for the genetic identification of delta smelt (Hypomesus transpacificus) and wakasagi smelt (Hypomesus nipponensis)

Molecular Ecology Resources, 2011
AbstractWe have developed species‐specific TaqMan assays for two California fish species, the threatened delta smelt (Hypomesus transpacificus) and the introduced wakasagi smelt (Hypomesus nipponensis). The assays are capable of correctly identifying each species with 100% accuracy, with no cross‐species amplification.
Melinda R, Baerwald, Gregg, Schumer, Brian M, Schreier, Bernie, May   +3 more
openaire   +2 more sources

Population genetics and conservation implications for the endangered delta smelt in the San Francisco Bay-Delta

Conservation Genetics, 2011
Over the last two decades, the collapse of the endangered delta smelt (Hypomesus transpacificus) in the San Francisco Bay-Delta has resulted in politically charged conservation decisions, including the rationing of valuable Delta water for use in California agriculture and urban centers.
Kathleen M. Fisch, Jordana M. Henderson, Ronald S. Burton, Bernie May   +3 more
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