Long-Term Trends in Summertime Habitat Suitability for Delta Smelt, Hypomesus transpacificus
San Francisco Estuary and Watershed Science, 2008 The biological productivity of river-dominated estuaries is affected strongly by variation in freshwater inflow, which affects nursery habitat quality. Previous research has shown this is generally true in the upper San Francisco Estuary, California, USA;
Matthew L. Nobriga +3 more
doaj +3 more sources
Evaluating environmental DNA detection of a rare fish in turbid water using field and experimental approaches [PDF]
PeerJDetection sensitivity of aquatic species using environmental DNA (eDNA) generally decreases in turbid water but is poorly characterized. In this study, eDNA detection targeted delta smelt (Hypomesus transpacificus), a critically endangered estuarine fish
Ann E. Holmes +5 more
doaj +3 more sources
MaxTemp: A Method to Maximise Precision of the Temporal Method for Estimating N<sub>e</sub> in Genetic Monitoring Programs. [PDF]
Mol Ecol ResourABSTRACT 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
Environmental DNARare species are difficult to monitor using traditional methods, making them excellent candidates for environmental DNA (eDNA) monitoring. The larval life stages of Delta Smelt (Hypomesus transpacificus) and Longfin Smelt (Spirinchus thaleichthys) are ...
Sarah A. Stinson +10 more
doaj +2 more sources
Linking Hydrodynamic Complexity to Delta Smelt (Hypomesus transpacificus) Distribution in the San Francisco Estuary, USA [PDF]
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 +4 more
doaj +4 more sources
Gross morphology, histology, and ultrastructure of the olfactory rosette of a critically endangered indicator species, the Delta Smelt, Hypomesus transpacificus. [PDF]
J Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2021 AbstractThe Delta Smelt (Hypomesus transpacificus) is a small, semi-anadromous fish native to the San Francisco Bay-Delta Estuary and has been declared as critically endangered. Their olfactory biology, in particular, is poorly understood and a basic description of their sensory anatomy is needed to advance our understanding of the sensory ecology of ...
Triana-Garcia PA +3 more
europepmc +6 more sources
Developmental Staging and Salinity Tolerance in Embryos of the Delta Smelt, Hypomesus transpacificus. [PDF]
Aquaculture, 2019 Delta smelt (Hypomesus transpacificus) is a critically endangered species endemic to the San Francisco Bay Delta (SFBD). Important for the conservation of this species is understanding the physiological and ecological impacts contributing to their population decline, and current studies lack information on embryonic development.
Romney ALT +6 more
europepmc +6 more sources
Analysis of Limiting Factors Across the Life Cycle of Delta Smelt (Hypomesus transpacificus). [PDF]
Environ Manage, 2018 We developed a mechanistic life-cycle model derived from the elicitation of multiple factors influencing the success of individual life-stages of the imperiled delta smelt (Hypomesus transpacificus). We discuss the relevance of limiting factors in population ecology and problems with additive models in detecting them.
Hamilton SA, Murphy DD.
europepmc +5 more sources
Diet, Prey Selection, and Body Condition of Age-0 Delta Smelt, Hypomesus transpacificus, in the Upper San Francisco Estuary [PDF]
San Francisco Estuary and Watershed Science, 2014 Steven B. Slater and Randall D. Baxterdoi: http://dx.doi.org/10.15447/sfews.2014v12iss3art1The Delta Smelt, an endangered fish, has suffered a long-term decline in abundance, believed to result from, in part, to changes in the pelagic food web of the ...
Steven B. Slater, Randall D. Baxter
doaj +4 more sources
Factors Controlling Calanoid Copepod Biomass and Distribution in the Upper San Francisco Estuary and Implications for Managing the Imperiled Delta Smelt (Hypomesus transpacificus). [PDF]
Environ Manage, 2020 AbstractDelta smelt struggle to persist in a dramatically altered estuarine environment. Complex and incompletely understood relationships between food availability, environmental stressors, other components of the species’ habitat, and the abundance of delta smelt impede the effective management and recovery of the species.
Hamilton S +3 more
europepmc +4 more sources