Results 61 to 70 of about 293 (144)

Impacts of climate‐related stressors on social group cohesion and individual sociability in fish

Biological Reviews, Volume 99, Issue 6, Page 2035-2059, December 2024.
ABSTRACT Group‐living in animals comes with a number of benefits associated with predator avoidance, foraging, and reproduction. A large proportion of fish species display grouping behaviour. Fish may also be particularly vulnerable to climate‐related stressors including thermal variation, hypoxia, and acidification.
Izzy C. Tiddy, Amelia Munson, Daphne Cortese, Michael M. Webster, Shaun S. Killen   +4 more
wiley   +1 more source

Single generation epigenetic change in captivity and reinforcement in subsequent generations in a delta smelt (Hypomesus transpacificus) conservation hatchery

Molecular Ecology
AbstractA refugial population of the endangered delta smelt (Hypomesus transpacificus) has been maintained at the Fish Conservation and Culture Laboratory (FCCL) at UC Davis since 2008. Despite intense genetic management, fitness differences between wild and cultured fish have been observed at the FCCL.
Ensieh Habibi, Michael R. Miller, Andrea Schreier, Matthew A. Campbell, Tien‐Chieh Hung, Daphne Gille, Melinda Baerwald, Amanda J. Finger   +7 more
openaire   +4 more sources

Sample Design-based Methodology for Estimating Delta Smelt Abundance

San Francisco Estuary and Watershed Science, 2008
A sample design-based procedure for estimating pre-adult and adult delta smelt abundance is described. Using data from midwater trawl surveys taken during the months of September, October, November, and December for the years 1990 through 2006 and ...
Ken B. Newman
doaj  

Identifying minimum freshwater habitat conditions for an endangered fish using life cycle analysis

Conservation Science and Practice
Identifying the most important factors affecting population growth in animal life cycles is an important tool of species conservation. Delta Smelt (Hypomesus transpacificus), an annual fish endemic to the San Francisco Estuary in California (USA), has ...
Leo Polansky, Lara Mitchell, Matthew L. Nobriga   +2 more
doaj   +1 more source

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  

CRISPR‐based environmental DNA detection for a rare endangered estuarine species

Environmental DNA
Environmental DNA (eDNA) methods complement traditional aquatic monitoring surveys and are especially advantageous for rare and listed species to detect spatial and temporal distribution patterns.
Raman P. Nagarajan, Leigh Sanders, Natalie Kolm, Alejandro Perez, Taylor Senegal, Brian Mahardja, Melinda R. Baerwald, Andrea D. Schreier   +7 more
doaj   +1 more source

Role of freshwater floodplain-tidal slough complex in the persistence of the endangered delta smelt.

PLoS ONE, 2019
Seasonal floodplain wetland is one of the most variable and diverse habitats found in coastal ecosystems, yet it is also one of the most highly altered by humans.
Brian Mahardja, James A Hobbs, Naoaki Ikemiyagi, Alyssa Benjamin, Amanda J Finger   +4 more
doaj   +1 more source

Long-Term Seasonal Trends in the Prey Community of Delta Smelt (Hypomesus transpacificus) Within the Sacramento-San Joaquin Delta, California

Estuaries and Coasts, 2016
Abiotic factors and species introductions can alter food web timing, disrupt life cycles, and change life history expressions and the temporal scale of population dynamics in zooplankton communities. We examined physical, trophic, and zooplankton community dynamics in the San Francisco Estuary, California, a highly altered Mediterranean climate ...
Merz, Joseph E., Bergman, Paul S., Simonis, Joseph L., Delaney, David, Pierson, James, Anders, Paul   +5 more
openaire   +1 more source

Feeding Habit of Pond Smelt (Hypomesus transpacificus nipponensis) and Its Impact on the Zooplankton Community in Lake Suwa, Japan

Journal of Freshwater Ecology, 2005
ABSTRACT We examined the feeding habit of pond smelt (Hypomesus transpacificus nipponesis) and its impact on the zooplankton community in Lake Suwa, Japan, from May to December 2001. Stomach contents were analyzed, and prey importance and the prey selectivity index were estimated from the stomach contents of fish and prey density in the lake.
Kwang-Hyeon Chang, Takayuki Hanazato, Go Ueshima, Hideshige Tahara   +3 more
openaire   +1 more source

The Spawning Migration of Delta Smelt in the Upper San Francisco Estuary

San Francisco Estuary and Watershed Science, 2011
Ted Sommer, Francine Mejia, Matt Nobriga, Fred Feyrer, and Lenny Grimaldodoi: http://dx.doi.org/10.15447/sfews.2014v9iss2art2While there is substantial information about the upstream migration of commercially and recreationally important fishes ...
Ted Sommer, Francine H Mejia, Matthew L. Nobriga, Frederick Feyrer, Lenny Grimaldo   +4 more
doaj