ArticleScientific reports2019
Complex life histories discovered in a critically endangered fish.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Beyond the hatchery: testing managed wetland impoundments as semi-natural rearing habitat for endangered Delta Smelt.Conservation physiology · 2026Article
- Time-varying flow-ecology relationships for an endangered fish population: Longfin Smelt in the San Francisco Estuary.Ecological applications : a publication of the Ecological Society of America · 2026Article
- Insights from a year of field deployments inform the conservation of an endangered estuarine fish.Conservation physiology · 2024Article
- Article
- Diversity of life history and population connectivity of threadfin fish Eleutheronema tetradactylum along the coastal waters of Southern China.Scientific reports · 2023Article
- Effects of turbidity, temperature and predation cue on the stress response of juvenile delta smelt.Conservation physiology · 2023Article
- Visual, spectral, and microchemical quantification of crystalline anomalies in otoliths of wild and cultured delta smelt.Scientific reports · 2022Article
- Temperature and salinity preferences of endangered Delta Smelt (Hypomesus transpacificus, Actinopterygii, Osmeridae).Scientific reports · 2022Article
- Four decades of climatic fluctuations and fish recruitment stability across a marine-freshwater gradient.Global change biology · 2022Article
- Polygenic discrimination of migratory phenotypes in an estuarine forage fish.G3 (Bethesda, Md.) · 2022Article
- Broad Whitefish (Coregonus nasus) isotopic niches: Stable isotopes reveal diverse foraging strategies and habitat use in Arctic Alaska.PloS one · 2022Article
- Reproductive strategy of Delta Smelt Hypomesus transpacificus and impacts of drought on reproductive performance.PloS one · 2022Article
- Article
- Salinity Alters Toxicity of Commonly Used Pesticides in a Model Euryhaline Fish Species (Toxics · 2021Article
- Article
- Article
- Factors Controlling Calanoid Copepod Biomass and Distribution in the Upper San Francisco Estuary and Implications for Managing the Imperiled Delta Smelt (Hypomesus transpacificus).Environmental management · 2020Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Effective conservation of endangered species requires knowledge of the full range of life-history strategies used to maximize population resilience within a stochastic and ever-changing environment. California's endemic Delta Smelt (Hypomesus transpacificus) is rapidly approaching extinction in the San Francisco Estuary, placing it in the crossfire between human and environmental uses of limited freshwater resources. Though managed as a semi-anadromous species, recent studies have challenged this lifecycle model for Delta Smelt, suggesting the species is an estuarine resident with several localized "hot-spots" of abundance. Using laser-ablation otolith strontium isotope microchemistry, we discovered three distinct life-history phenotypes including freshwater resident (FWR), brackish-water resident (BWR), and semi-anadromous (SA) fish. We further refined life-history phenotypes using an unsupervised algorithm and hierarchical clustering and found that in the last resilient year-class, the FWR (12%) and BWR (7%) comprised a small portion of the population, while the majority of fish were SA (81%). Furthermore, the semi-anadromous fish could be clustered into at least four additional life-history phenotypes that varied by natal origin, dispersal age and adult salinity history. These diverse life-history strategies should be incorporated into future conservation and management efforts aimed at preventing the extinction of Delta Smelt in the wild.
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