Results 161 to 170 of about 813 (188)
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Evaluation of Calcein and Photonic Marking for Cultured Delta Smelt
North American Journal of Fisheries Management, 2014Abstract 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 +8 more
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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 +3 more
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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 +3 more
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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 +3 more
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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 +3 more
openaire +1 more source
Aquaculture Methods for a Genetically Managed Population of Endangered Delta Smelt
North American Journal of Aquaculture, 2013Abstract In response to Federal listing of the Delta Smelt Hypomesus transpacificus as a threatened species in 1993, intensive fish culture techniques were developed to provide a supply of fish for research activities. The Delta Smelt was listed as endangered by the state of California in 2009, and several agencies worked quickly to ...
Joan C Lindberg +5 more
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Reduced swimming performance in delta smelt infected with Mycobacterium spp.
Journal of Fish Biology, 2002Delta smelt Hypomesus transpacificus infected with Mycobacterium spp. swam significantly more slowly (mean ±s.e., 24±5 ± 1·2 cm s −1) than uninfected fish (30·0 ± 1·7 cm s −1). Differences in swimming performance were not attributable to differences in fish size (Ls or wet mass), condition factor or laboratory holding duration.
C. Swanson +4 more
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Agencies Develop Strategy to Save California's Delta Smelt
Journal AWWA, 2016This department offers industry announcements covering new contracts, events, awards, studies and regulations.
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Effects of nitrate on sub-adult, hatchery-raised Delta Smelt
Recirculating aquaculture systems typically require water changes to reduce nitrate levels and prevent toxicity. The Delta Smelt (Hypomesus transpacificus) exists almost exclusively in freshwater culture, so knowledge of its nitrate sensitivity is critical. Here we quantified the acute (4 d) and chronic (30 d) toxicity of nitrate to Delta Smelt. In theWendie Vang +10 more
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