Results 51 to 60 of about 298 (142)

MaxTemp: A Method to Maximise Precision of the Temporal Method for Estimating N<sub>e</sub> in Genetic Monitoring Programs. [PDF]

open access: yesMol Ecol Resour
ABSTRACT We introduce a new software program, MaxTemp, that increases precision of the temporal method for estimating effective population size (Ne) in genetic monitoring programs, which are increasingly used to systematically track changes in global biodiversity.
Waples RS   +3 more
europepmc   +2 more sources

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

open access: yesRestoration 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   +4 more
wiley   +1 more source

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

open access: yesRestoration 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   +3 more
wiley   +1 more source

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

open access: yesRestoration 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   +3 more
wiley   +1 more source

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

open access: yesPLoS 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   +6 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
wiley   +1 more source

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

open access: yesSan 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   +2 more
doaj  

Evaluating the impact of captive ancestry on the growth and survival of Delta Smelt in a captive environment

open access: yesAquaculture Reports
Delta Smelt Hypomesus transpacificus, is an endangered fish endemic to the California San Francisco Bay-Delta, USA. Extreme declines of the wild Delta Smelt population have prompted use of cultured fish to supplement the wild population since 2021 to ...
Samantha N. Chase   +6 more
doaj   +1 more source

The health and condition responses of Delta Smelt to fasting: A time series experiment.

open access: yesPLoS ONE, 2020
There is an extensive literature establishing, validating, and quantifying a wide range of responses of fishes to fasting. Our study complements this work by comparing fed and unfed treatments of hatchery-raised Delta Smelt (Hypomesus transpacificus)-an ...
Bruce G Hammock   +8 more
doaj   +1 more source

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

open access: yesEcosphere, 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   +8 more
wiley   +1 more source

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