Results 91 to 100 of about 909 (183)

Evaluation and Interpretation of Genetic Effective Population Size of Delta Smelt from 2011–2014

open access: yesSan Francisco Estuary and Watershed Science, 2017
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  

Transcriptome-Based Analysis of the Effects of Salt Stress on the Embryos of Hypomesus nipponensis

open access: yesAnimals
The increasing salinization and alkalization of inland waters in China pose a growing threat to the early developmental stages of fish. This study investigated the survival rates and transcriptomic response mechanisms of pond smelt (Hypomesus nipponensis)
Qian Xiao   +7 more
doaj   +1 more source

Daily Otolith Increments and Growth of Reared Chika Hypomesus japonicus Larvae

open access: yes, 2001
The growth increment of otolith were validated to establish the daily age determination method for chika Hypomesus japonicus. Newly hatched larvae have a pair of sagitta of ca. 12.5μm radius.
ヒロセ, タロウ   +7 more
core  

The physiological responses of surf smelt (Hypomesus pretiosus) to environmental stress in Puget Sound, WA, USA [PDF]

open access: yes
Drastic environmental changes can severely affect a fish's metabolism, growth, reproduction and overall survivability. There is a concern that the synergy of multiple stressors, like the threat of climate change, will lead to population collapses of ...
Mellinger, Leah Marie
core  

Sample Design-based Methodology for Estimating Delta Smelt Abundance

open access: yesSan 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  

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

open access: yesEnvironmental 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   +7 more
doaj   +1 more source

Linking Hydrodynamic Complexity to Delta Smelt (Hypomesus transpacificus) Distribution in the San Francisco Estuary, USA

open access: yesSan Francisco Estuary and Watershed Science, 2016
doi: http://dx.doi.org/10.15447/sfews.2016v14iss1art3Long-term fish sampling data from the San Francisco Estuary were combined with detailed three-dimensional hydrodynamic modeling to investigate the relationship between historical fish catch and ...
Aaron J. Bever   +4 more
doaj  

Validating estuarine movements from otoliths for an imperiled fish

open access: yesAquatic Biology
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

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