Results 61 to 70 of about 298 (142)

Molecular Identification of the Nematode Eustrongylides ignotus in Mandarin Fish, Siniperca chuatsi

Aquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.
ABSTRACT Mandarin fish (Siniperca chuatsi) is a high‐value economic freshwater fish in China; however, the frequent occurrence of diseases threatens its production. To this end, we explored the impact of a nematode parasite newly found in the abdomen of mandarin fish collected from Pudong, Shanghai, China.
Jin‐hua Gao, Ning‐xin Guo, Jin‐liang Zhao, Gazahegn‐Wakjira Yadata, Kang‐ning Cai, Yu‐fei Liu, Zhi‐yi Yan, Yi‐fan Liu, Zhi‐chao Meng   +8 more
wiley   +1 more source

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

San 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, Gregg Schumer, Alyssa Benjamin, Scott Blankenship   +3 more
doaj  

Characterizing macroinvertebrate community composition and abundance in freshwater tidal wetlands of the Sacramento-San Joaquin Delta.

PLoS ONE, 2019
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, Stacy Sherman, Dave Contreras, Alison Furler, Ryan Kok   +4 more
doaj   +1 more source

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  

Validating estuarine movements from otoliths for an imperiled fish

Aquatic 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, M Willmes, C Denney, L Cavole, W Xieu, RA Fichman, TC Hung, L Ellison, T Stevenson, AA Schultz, BG Hammock, S Teh, JA Hobbs   +12 more
doaj   +1 more source

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

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

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  

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

San 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, Michael L. MacWilliams, Bruce Herbold, Larry R. Brown, Frederick V. Feyrer   +4 more
doaj  

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