Results 31 to 40 of about 298 (142)

Long-Term Trends in Summertime Habitat Suitability for Delta Smelt, <em>Hypomesus transpacificus</em> [PDF]

San Francisco Estuary and Watershed Science, 2008
Ted Sommer, Matthew Nobriga, Frederick Feyrer   +2 more
exaly   +2 more sources

Vital dye immersion evaluations with juvenile delta smelt

Aquaculture, Fish and Fisheries, 2023
Immersion‐based vital dyes were tested as a marking method for use in larval smelt mark–recapture studies. We assessed five fluorescent dyes as a mark for juvenile osmerids: 4‐Di‐1‐ASP, BODIPY FL C12, BODIPY 505/515, Nile red, and calcein.
Virginia Afentoulis, Andrew Kalmbach, Tien‐Chieh Hung, Md. Moshiur Rahman, Luke Ellison, Javier Miranda   +5 more
doaj   +1 more source

Hypomesus transpacificus McAllister 1963

, 2021
Hypomesus transpacificus McAllister, 1963. Delta Smelt. To 12 cm (4.8 in) TL (Page and Burr 1991). Brackish and freshwater habitats of the Sacramento and San Joaquin river systems, California (Miller and Lea 1972, Saruwatari et al. 1997).
Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., Maslenikov, Katherine P.   +4 more
openaire   +1 more source

Time-varying flow-ecology relationships for an endangered fish population: Longfin Smelt in the San Francisco Estuary. [PDF]

Ecol Appl
Abstract Major estuaries globally are experiencing fast‐paced changes in hydrology and ecosystem dynamics. However, connecting alteration of river flow regimes to estuarine fish population dynamics remains a challenge, partly due to the untested assumption that flow regimes, fish dynamics, and the resulting flow–ecology relationships are stationary (i ...
Saffarinia P, Hobbs JA, Carlson SM, Ruhí A.   +3 more
europepmc   +2 more sources

Salinity Changes the Dynamics of Pyrethroid Toxicity in Terms of Behavioral Effects on Newly Hatched Delta Smelt Larvae

Toxics, 2021
Salinity can interact with organic compounds and modulate their toxicity. Studies have shown that the fraction of pyrethroid insecticides in the aqueous phase increases with increasing salinity, potentially increasing the risk of exposure for aquatic ...
Amelie Segarra, Florian Mauduit, Nermeen R. Amer, Felix Biefel, Michelle L. Hladik, Richard E. Connon, Susanne M. Brander   +6 more
doaj   +1 more source

Floodplain inundation and lateral connectivity promote productivity in a managed river ecosystem. [PDF]

Ecol Appl
Abstract River‐floodplain ecosystems near urban centers are heavily engineered for flood protection and water delivery, which has led to a loss of lateral hydrologic connectivity between rivers and their floodplains. This study has two objectives: (1) Does increased lateral connectivity resulting from floodplain inundation increase chlorophyll a ...
Khanna S, Pien C, Goertler P, Yamane L, Stumpner E, Gaeta JW, Chapple D, Berglund M, Peek R.   +8 more
europepmc   +2 more sources

Delta Smelt stress responses during fish salvage at the John E. Skinner Delta Fish Protective Facility, California

California Fish and Wildlife Journal, 2023
The John E. Skinner Delta Fish Protective Facility (Skinner Fish Facility) diverts entrained fish from the State Water Project’s pumping facilities in the southern Sacramento-San Joaquin Delta (the Delta) and transports them via tanker trucks away from ...
Virginia Afentoulis, Andrew Rockriver, Samreen Siddiqui, Lauren Damon   +3 more
doaj   +1 more source

Ultrastructure of Vitellogenic Ovarian Follicles and Morphogenesis of the Oocyte Envelope in the Eurasian Ruffe (Gymnocephalus cernua Linnaeus 1758) (Teleostei, Perciformes). [PDF]

J Morphol
Ruffe's vitellogenic ovarian follicles consists of a single oocyte surrounded by follicular cells, a basal lamina, and thecal cells. The oocytes are polarized and covered by a primary envelope. The follicular cells diversify into micropylar and mainbody cells. The latter have dark and bright cytoplasms.
Żelazowska M, Kujawa R.
europepmc   +2 more sources

Transcriptional flexibility during thermal challenge corresponds with expanded thermal tolerance in an invasive compared to native fish

Evolutionary Applications, 2021
Capacity to cope with warming temperatures is a key determining factor of species' persistence under global climate change. Many successful invasive species have heightened thermal tolerance relative to their native counterparts, which may provide ...
Lisa M. Komoroske, Ken M. Jeffries, Andrew Whitehead, Jennifer L. Roach, Monica Britton, Richard E. Connon, Christine Verhille, Susanne M. Brander, Nann A. Fangue   +8 more
doaj   +1 more source

Identifying Environmental Factors Limiting Recovery of an Imperiled Estuarine Fish

Frontiers in Ecology and Evolution, 2022
Correctly identifying the environmental factors that limit population growth and recovery of imperiled species is an essential element of any targeted conservation program.
Scott A. Hamilton, Dennis D. Murphy
doaj   +1 more source