Results 81 to 90 of about 760 (188)
Endangered Species ResearchUnderstanding the reproductive dynamics of endangered species is crucial for effective conservation strategies. This study examines the impact of age and repeated collection interval on sperm motility in the Critically Endangered delta smelt Hypomesus ...
MM Rahman, T Hung
doaj +1 more source
, 2015 This project investigated the ecological niche and multiple stressor scenarios in the endangered fish species Delta Smelt (Hypomesus transpacificus). Survival and physiological stress response were affected by turbidity, salinity and contaminants, and ...
Hasenbein, Matthias
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, 2005 Delta smelt, Hypomesus transpacificus, and indigenous fish to the Sacramento-San Joaquin Delta, California. USA, has been listed as a threatened species by the U.S. Fish and Wildlife Service.
Bridges, B B +3 more
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Improving Conservation Hatchery Effectiveness: A Study on Alternative Egg Treatments for Delta Smelt Hypomesus transpacificus and Longfin Smelt Spirinchus thaleichthys [PDF]
, 2023 At the UC Davis Fish Conservation and Culture Laboratory (FCCL), Delta Smelt (Hypomesus transpacificus) and Longfin Smelt (Spirinchus thaleichthys) are being cultured for conservation.
Tseng, Yu-Ming
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The Content of Ca in the Muscle of a Teleost, Hypomesus olidus, in Relation to its Environment
NIPPON SUISAN GAKKAISHI, 1937 Of the two lakes, Hinuma and Kasumigaura, located close to the coast of the Ibaraki Prefecture, the former is much more subject to invasion of sea-water. The chemical analysis has shown (Table 2) that 0·922 mg. of Ca and 57·31 mg. af Cl are present on average in the water of Lake Hinuma, whereas 0·716 mg. of Ca and 2·178 mg. Cl are present in the water
USUI, Yohei +2 more
openaire +2 more sources
, 1977 The objectives of this study are to identify the larval forms of the two species of smelt, Spirinchus thaleichthys and Hypomesus transpacificus transpacificus, and to better describe their spawning times in the Sacramento-San Joaquin ...
Simonsen, Marilou
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Migration behavior of PGCs and asymmetrical gonad formation in pond smelt Hypomesus nipponensis
The International Journal of Developmental Biology, 2017 In teleost fish, the gonad originates from primordial germ cells (PGCs) and somatic cells. However, it is not clear whether the final gonadal position is determined by anteroposterior and dextrosinistral differentiation of endodermal organs or by the distribution of PGCs.
Eisuke, Takahashi +5 more
openaire +3 more sources
Physiological stress biomarkers reveal stocking density effects in late larval Delta Smelt (Hypomesus transpacificus) [PDF]
, 2016 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 ...
Connon, Richard E +4 more
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Functional Response of Protected Larval Stage Delta Smelt (Hypomesus transpacificus)
, 2012 Delta smelt (Hypomesus transpacificus) is a protected slender-bodied fish endemic to the San Francisco Estuary. Smelt prey upon various zooplankton including the copepods such as Pseudodiaptomus forbesi.
Lindberg, Joan +3 more
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