Results 91 to 100 of about 488 (165)

Revisiting Assumptions that Underlie Estimates of Proportional Entrainment of Delta Smelt by State and Federal Water Diversions from the Sacramento-San Joaquin Delta

San Francisco Estuary and Watershed Science, 2011
The delta smelt is a small, endemic fish that resides in the upper San Francisco Estuary. They are listed under state and federal Endangered Species Acts. Since 2002, their abundance has been at record low levels.
William J. Miller
doaj  

Age and repeated collection interval effects on sperm motility in the endangered delta smelt Hypomesus transpacificus

Endangered Species Research
Understanding 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

Abundance Trends, Distribution, and Habitat Associations of the Invasive Mississippi Silverside (Menidia audens) in the Sacramento–San Joaquin Delta, California, USA

San Francisco Estuary and Watershed Science, 2016
doi: http://dx.doi.org/10.15447/sfews.2016v14iss1art2Although many alien fish species have colonized the Sacramento–San Joaquin Delta (Delta), few are as pervasive and abundant as Mississippi Silversides (Menidia audens).
Brian Mahardja, J. Louise Conrad, Lester Lusher, Brian Schreier   +3 more
doaj  

Spatially dynamic abundance patterns for a rare fish species

Ecosphere
Recovery of rare and imperiled species is often supported by targeting the dynamic drivers of abundance patterns. However, knowledge of these drivers can be obscured by challenges stemming from species detectability and autocorrelated data. Longfin Smelt
Valerie A. Steen, James T. Peterson, Adam Duarte   +2 more
doaj   +1 more source

Conservation of Native Fishes of the San Francisco Estuary: Considerations for Artificial Propagation of Chinook Salmon, Delta Smelt, and Green Sturgeon

San Francisco Estuary and Watershed Science, 2011
Many native fishes in the San Francisco Estuary and its watersheds have reached all-time low abundances. Some of these declining species (e.g., Chinook salmon Oncorhynchus tschawytscha) have been under artificial propagation for decades. For others (e.g.,
Joshua A. Israel, Kathleen M. Fisch, Thomas F. Turner, Robin S. Waples   +3 more
doaj  

Contaminant Effects on California Bay–Delta Species and Human Health

San Francisco Estuary and Watershed Science, 2016
doi: https://doi.org/10.15447/sfews.2016v14iss4art5Many contaminants in the California Bay–Delta (Bay–Delta) exceed regulatory standards, affect aquatic species, and potentially affect human health.
Stephanie Fong, Stephen Louie, Inge Werner, Jay Davis, Richard E. Connon   +4 more
doaj  

Polygenic discrimination of migratory phenotypes in an estuarine forage fish. [PDF]

G3 (Bethesda), 2022
Campbell MA, Joslin SEK, Goodbla AM, Willmes M, Hobbs JA, Lewis LS, Finger AJ.   +6 more
europepmc   +1 more source

Analysis of Limiting Factors Across the Life Cycle of Delta Smelt (Hypomesus transpacificus). [PDF]

Environ Manage, 2018
Hamilton SA, Murphy DD.
europepmc   +1 more source

Quantifying the evolutionary potential for Delta Smelt persistence in a warming habitat

Abstract Long-term persistence of managed species will depend, in part, on whether the species harbors the physiological or genetic potential to adjust to warming temperatures, and whether relevant genetic variation is modified by management practices.
Joanna S. Griffiths, Amanda J. Finger, M. Moshiur Rahman, Brittany E. Davis, Tien-Chieh Hung, Nann A. Fangue, Andrew Whitehead   +6 more
openaire   +1 more source

Unexpected complex horizontal gene transfer in teleost fish. [PDF]

Curr Zool, 2023
Han Z, Xu S, Gao T.
europepmc   +1 more source