Results 31 to 40 of about 293 (146)

Locating Little Larvae: Environmental DNA Methods Can Detect a Rare Fish Species Under Field Estuarine Conditions

Environmental DNA
Rare species are difficult to monitor using traditional methods, making them excellent candidates for environmental DNA (eDNA) monitoring. The larval life stages of Delta Smelt (Hypomesus transpacificus) and Longfin Smelt (Spirinchus thaleichthys) are ...
Sarah A. Stinson, Melinda R. Baerwald, Kevan Yamahara, Avery Scherer, Yekaterina Karpenko, Cheryl Dean, Matthew B. Espe, Gregg Schumer, Sarah Brown, Brian Schreier, Daphne Gille   +10 more
doaj   +2 more sources

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

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

Delta Smelt (Hypomesus transpacificus) Exhibit Wide Variation in Spawning Behavior: An Investigation of Substrate Type, Diel Timing, and Participants [PDF]

Estuaries and Coasts, 2021
AbstractStudies of cultured populations can be invaluable to the conservation of imperiled species for which little is known and whose very low abundance in the wild can preclude studies with robust sample sizes. For example, in endangered delta smelt (Hypomesus transpacificus), conservation measures developed to mitigate population decline are ...
Yi-Jiun Jean Tsai, Samantha Noel Chase, Evan W. Carson, Leanna Zweig, Tien-Chieh Hung   +4 more
openaire   +1 more source

Experimental validation of otolith-based age and growth reconstructions across multiple life stages of a critically endangered estuarine fish [PDF]

PeerJ, 2021
Background The application of otolith-based tools to inform the management and conservation of fishes first requires taxon- and stage-specific validation.
Wilson Xieu, Levi S. Lewis, Feng Zhao, Rachel A. Fichman, Malte Willmes, Tien-Chieh Hung, Luke Ellison, Troy Stevenson, Galen Tigan, Andrew A. Schultz, James A. Hobbs   +10 more
doaj   +2 more sources

Spawning Microhabitat Selection in Wild-Caught Delta Smelt Hypomesus transpacificus under Laboratory Conditions [PDF]

Estuaries and Coasts, 2019
AbstractVery little is understood about the spawning habitat of endangered delta smeltHypomesus transpacificus, which hinders ongoing recovery efforts such as wetland habitat restoration and spawning habitat augmentation. To address this, the spawning response of wild-caughtH.
Joan C. Lindberg, Yi-Jiun J. Tsai, Brittany D. Kammerer, Bradd Baskerville-Bridges, Tien-Chieh Hung   +4 more
openaire   +1 more source

Association of delta smelt with other small pelagic fishes suggests the potential for competition and proxy monitoring

Endangered Species Research
Development of habitat occupancy models for protected species with low detection rates can be difficult; however a possible solution is to use proxy species.
M Tillotson, CY Lee, C Garcia
doaj   +1 more source

Use of affinity analysis to guide habitat restoration and enhancement for the imperiled delta smelt

Endangered Species Research, 2020
Habitat restoration efforts in the upper San Francisco Estuary, including the Sacramento-San Joaquin Delta, California, move forward, despite a paucity of information on the environmental requirements of many targeted species.
Hamilton, SA, Murphy, DD
doaj   +1 more source

SmeltCam: underwater video codend for trawled nets with an application to the distribution of the imperiled delta smelt. [PDF]

PLoS ONE, 2013
Studying rare and sensitive species is a challenge in conservation biology. The problem is exemplified by the case of the imperiled delta smelt Hypomesus transpacificus, a small delicate fish species endemic to the San Francisco Estuary, California ...
Frederick Feyrer, Donald Portz, Darren Odum, Ken B Newman, Ted Sommer, Dave Contreras, Randall Baxter, Steven B Slater, Deanna Sereno, Erwin Van Nieuwenhuyse   +9 more
doaj   +1 more source