Reproductive strategy of Delta Smelt Hypomesus transpacificus and impacts of drought on reproductive performance. [PDF]
PLoS ONE, 2022 Understanding reproductive biology and performance of fish is essential to formulate effective conservation and management programs. Here, we studied reproductive strategies of female Delta Smelt Hypomesus transpacificus, an endangered fish species in ...
Tomofumi Kurobe +6 more
doaj +7 more sources
Temperature and salinity preferences of endangered Delta Smelt (Hypomesus transpacificus, Actinopterygii, Osmeridae) [PDF]
Scientific Reports, 2022 Temperature and salinity often define the distributions of aquatic organisms. This is at least partially true for Delta Smelt, an imperiled species endemic to the upper San Francisco Estuary.
Tien-Chieh Hung +6 more
doaj +6 more sources
SmeltCam: Underwater Video Codend for Trawled Nets with an Application to the Distribution of the Imperiled Delta Smelt [PDF]
PLoS ONE, 2013 Studying rare and sensitive species is a challenge in conservation biology. The problem is exemplified by the case of the imperiled delta smelt Hypomesus transpacificus, a small delicate fish species endemic to the San Francisco Estuary, California ...
Frederick Feyrer +2 more
exaly +3 more sources
Role of freshwater floodplain-tidal slough complex in the persistence of the endangered delta smelt. [PDF]
PLoS ONE, 2019 Seasonal floodplain wetland is one of the most variable and diverse habitats found in coastal ecosystems, yet it is also one of the most highly altered by humans.
Brian Mahardja +4 more
doaj +7 more sources
The health and condition responses of Delta Smelt to fasting: A time series experiment. [PDF]
PLoS 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 imperiled fish that is endemic to the San Francisco Estuary and its tributaries in California, USA ...
Hammock BG +8 more
europepmc +7 more sources
Visual, spectral, and microchemical quantification of crystalline anomalies in otoliths of wild and cultured delta smelt [PDF]
Scientific Reports, 2022 Developmental abnormalities in otoliths can impact growth and survival in teleost fishes. Here, we quantified the frequency and severity of developmental anomalies in otoliths of delta smelt (Hypomesus transpacificus), a critically endangered estuarine ...
Levi S. Lewis +15 more
doaj +2 more sources
Salinity Changes the Dynamics of Pyrethroid Toxicity in Terms of Behavioral Effects on Newly Hatched Delta Smelt Larvae [PDF]
Toxics, 2021 Salinity can interact with organic compounds and modulate their toxicity. Studies have shown that the fraction of pyrethroid insecticides in the aqueous phase increases with increasing salinity, potentially increasing the risk of exposure for aquatic ...
Amelie Segarra +6 more
doaj +2 more sources
Captive-reared Delta Smelt (Hypomesus transpacificus) exhibit high survival in natural conditions using in situ enclosures. [PDF]
PLoS ONE, 2023 Conservation of endangered fishes commonly includes captive breeding, applied research, and management. Since 1996, a captive breeding program has existed for the federally threatened and California endangered Delta Smelt Hypomesus transpacificus, an ...
Melinda R Baerwald +14 more
doaj +2 more sources
Effects of turbidity, temperature and predation cue on the stress response of juvenile delta smelt. [PDF]
Conserv Physiol, 2023 Abstract The San Francisco Estuary (SFE) is one of the most degraded ecosystems in the United States, and organisms that inhabit it are exposed to a suite of environmental stressors. The delta smelt (Hypomesus transpacificus), a small semi-anadromous fish endemic to the SFE and considered an indicator species, is close to extinction in ...
Pasparakis C +8 more
europepmc +5 more sources
Modeling Delta Smelt Losses at the South Delta Export Facilities [PDF]
San Francisco Estuary and Watershed Science, 2011 I previously estimated proportional losses of delta smelt to the water export facilities in the south Delta (Kimmerer 2008). This note is in response to Miller (2010), who disputes these estimated losses on several grounds.
Wim J. Kimmerer
doaj +4 more sources