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 +3 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 +2 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 +9 more
doaj +2 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
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 +2 more sources
Experimental validation of otolith-based age and growth reconstructions across multiple life stages of a critically endangered estuarine fish [PDF]
PeerJ, 2021 Background The application of otolith-based tools to inform the management and conservation of fishes first requires taxon- and stage-specific validation.
Wilson Xieu +10 more
doaj +3 more sources
Use of affinity analysis to guide habitat restoration and enhancement for the imperiled delta smelt
Endangered Species Research, 2020 Habitat restoration efforts in the upper San Francisco Estuary, including the Sacramento-San Joaquin Delta, California, move forward, despite a paucity of information on the environmental requirements of many targeted species.
Scott Hamilton, Dennis D Murphy
exaly +3 more sources
Linking mechanistic and behavioral responses to sublethal esfenvalerate exposure in the endangered delta smelt;
BMC Genomics, 2009 Background The delta smelt (Hypomesus transpacificus) is a pelagic fish species listed as endangered under both the USA Federal and Californian State Endangered Species Acts and considered an indicator of ecosystem health in its habitat range, which is ...
Wintz Henri +7 more
doaj +2 more sources