Results 41 to 50 of about 293 (146)

Physiological stress biomarkers reveal stocking density effects in late larval Delta Smelt (Hypomesus transpacificus) [PDF]

Aquaculture, 2016
Abstract Suboptimal fish stocking densities in experimental systems may elicit stress responses that can affect experimental results. Fish species, age and size, water chemistry and flow, and physical characteristics of the experimental system (e.g., tank, cage) are among the parameters to be considered when determining stocking densities.
Matthias Hasenbein, Nann A. Fangue, Juergen P. Geist, Lisa M. Komoroske, Richard E. Connon   +4 more
openaire   +3 more sources

Fish assemblage at a newly restored tidal wetland reflects surrounding waterways in the Sacramento‐San Joaquin Delta

Restoration Ecology, EarlyView.
Abstract Introduction We studied the response of fish assemblages, water quality, and plankton following the completion of 700 acres of a 1184‐acre tidal restoration project (Dutch Slough Tidal Restoration; DSTR) in a system degraded by water diversions, channelization, non‐native species, and wetland loss.
Lynette Williams Duman, Meghan Holst, Elsie Platzer, Kyle Phillips, John Durand   +4 more
wiley   +1 more source

Investigating the efficacy of tidal wetland restoration in enhancing aquatic food web resources for native fishes

Restoration Ecology, EarlyView.
Abstract Introduction Endangered fish species, such as Delta smelt (Hypomesus transpacificus), in the San Francisco Estuary are threatened by a multitude of anthropogenic stressors. Tidal wetland restoration can partially mitigate these stressors by increasing food availability of aquatic invertebrate prey, but the efficacy of restoration remains ...
Gabriel Ng, Stacy Sherman, Christy Bowles, Michelle Avila   +3 more
wiley   +1 more source

Silverside gold mine? Restored tidal habitats host abundant invasive fishes in a novel California marsh (U.S.A.)

Restoration Ecology, EarlyView.
Abstract Introduction Novel ecosystems, where environmental conditions have been fundamentally altered from a historic norm, require nontraditional approaches to restoration. Suisun Marsh, located within California's San Francisco Estuary (SFE), is a novel, brackish water wetland complex, where managers have begun restoring tidal connectivity to ...
Elsie Platzer, Kyle Phillips, Teejay O'Rear, John Durand   +3 more
wiley   +1 more source

Global Burden of Clinostomum complanatum in Freshwater Fish: A Systematic Review and Meta‐Analysis of Prevalence and Pathological Effect

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
ABSTRACT Clinostomum complanatum infection is a trematode parasite infecting diverse freshwater fish hosts, causing pathological damage and economic losses. Despite its veterinary and public health importance, its global burden remains insufficiently quantified. This study aimed to assess the global burden of C.
Mengesha Ayehu Getnet, Melkie Dagnaw Fenta, Asnakew Mulaw Berihun, Wilmien Luus Powell, Moges Maru Alemayehu, Tameru Gedefaw Mebratie, Zenebe Jemere Aragaw, Zewdu Seyoum Tarekegn   +7 more
wiley   +1 more source

Coupled Downscaled Climate Models and Ecophysiological Metrics Forecast Habitat Compression for an Endangered Estuarine Fish. [PDF]

PLoS ONE, 2016
Climate change is driving rapid changes in environmental conditions and affecting population and species' persistence across spatial and temporal scales.
Larry R Brown, Lisa M Komoroske, R Wayne Wagner, Tara Morgan-King, Jason T May, Richard E Connon, Nann A Fangue   +6 more
doaj   +1 more source

Divergent Thermal Habitat Responses to Climate Forcing in Shallow and Deep Lakes: The Role of Solar Radiation

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract Climate warming is expected to reduce thermal habitat for cold‐water fishes, yet the magnitude and direction of habitat change may depend on interactions among multiple climatic drivers. We analyzed two contrasting lakes in the same region—Lake Kasumigaura (a shallow, eutrophic lake) and Lake Inawashiro (a deep, oligotrophic lake)—to clarify ...
Ryuichiro Shinohara, Shin‐ichiro S. Matsuzaki, Maki Shinozaki, Mirai Watanabe, Megumi Nakagawa, Takayuki Satou   +5 more
wiley   +1 more source

Lag in Effective Population Size Decline Amid Demographic Collapse: A Case Study of the Delta Smelt (Hypomesus transpacificus)

Molecular Ecology, Volume 35, Issue 10, May 2026.
ABSTRACT Effective population size (Ne), census size (Nc) and their ratio (Ne/Nc) are widely used indicators in conservation genetics, yet long‐term empirical data tracking of all three metrics over long time scales in wild populations remains rare. Using monitoring data from 1995 to 2020, we examined temporal dynamics of Ne, Nc and their relationship ...
Amanda J. Finger, Melanie E. F. LaCava, Evan W. Carson, James A. Hobbs, Tien‐Chieh Hung, Matthew L. Nobriga, Leo Polansky, Robin S. Waples   +7 more
wiley   +1 more source

The effects of scientific uncertainty and values trade‐offs on flow management decisions for an endangered fish

Ecosphere, Volume 17, Issue 3, March 2026.
Abstract Consumptive use of freshwater is of concern in many estuarine ecosystems, and various frameworks have been used to prescribe environmental flows to benefit native species. However, few of these frameworks explicitly examine the potential trade‐offs between socioeconomic and conservation‐oriented values.
Brian Mahardja, William E. Smith, Brian D. Healy, Cameron Koizumi, Matthew L. Nobriga, Shawn Acuña, Brian Crawford, Kristin K. Arend, Michael C. Runge   +8 more
wiley   +1 more source

A Covered Cod-End and Tow-Path Evaluation of Midwater Trawl Gear Efficiency for Catching Delta Smelt (Hypomesus transpacificus)

San Francisco Estuary and Watershed Science, 2017
https://doi.org/10.15447/sfews.2017v15iss4art3For nearly 50 years, the California Department of Fish and Wildlife has used a midwater trawl to intensively monitor fish populations in the San Francisco Estuary during the fall, sampling over 100 locations
Lara Mitchell, Ken Newman, Randall Baxter   +2 more
doaj