Results 81 to 90 of about 853 (176)
Impacts of climate‐related stressors on social group cohesion and individual sociability in fish
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 +4 more
wiley +1 more source
Heatwaves and Rising Temperatures in the Upper San Francisco Estuary: Trends and Effects on Ecosystems and Humans [PDF]
Rising temperature is one direct consequence of climate change, and temperature is a key controlling variable on biological processes from molecular to ecosystem scales.
Bashevkin, Samuel M. +6 more
core +1 more source
Restored tidal wetlands may provide important food web support for at-risk fish species in the Sacramento-San Joaquin Delta (Delta) of California, including Delta Smelt (Hypomesus transpacificus) and Chinook Salmon (Oncorhynchus tshawytscha).
Rosemary Hartman +4 more
doaj +1 more source
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 +7 more
openaire +4 more sources
Evaluation and Interpretation of Genetic Effective Population Size of Delta Smelt from 2011–2014
https://doi.org/10.15447/sfews.2017v15iss2art5Delta Smelt have collapsed demographically, but little is known about their current genetic status. We used 12 microsatellite loci to evaluate two measures of the effective population size (Ne) of Delta ...
Amanda J. Finger +3 more
doaj
Rapid identification of invasive Brook Trout through CRISPR‐based environmental DNA detection
Abstract Objective Invasions of nonnative fish species, such as Brook Trout Salvelinus fontinalis, disrupt ecosystem function and adversely impact native populations through competition, hybridization, and predation. Timely detection of invasive species is crucial for effective management and prevention of further spread.
Tholen J. Blasko +2 more
wiley +1 more source
Sample Design-based Methodology for Estimating Delta Smelt Abundance
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
Validating estuarine movements from otoliths for an imperiled fish
The application of otolith tools to infer the movement history of fishes requires controlled experiments to validate methods and assess confidence in inferences gained for wild specimens.
LS Lewis +12 more
doaj +1 more source
Hepatic transcriptomic profiles from barramundi, Lates calcarifer, as a means of assessing organism health and identifying stressors in rivers in northern Queensland [PDF]
Resource managers need to differentiate between sites with and without contaminants and those where contaminants cause impacts. Potentially, transcriptomes could be used to evaluate sites where contaminant-induced effects may occur, to identify causative
Greenfield, Paul A. +5 more
core +2 more sources
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. +5 more
openaire +1 more source

