Experimental validation of otolith-based age and growth reconstructions across multiple life stages of a critically endangered estuarine fish

Xieu, Wilson; Lewis, Levi S.; Zhao, Feng; Fichman, Rachel A.; Willmes, Malte; Hung, Tien-Chieh; Ellison, Luke; Stevenson, Troy; Tigan, Galen; Schultz, Andrew A.; Hobbs, James A.

doi:10.7717/peerj.12280

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Experimental validation of otolith-based age and growth reconstructions across multiple life stages of a critically endangered estuarine fish

2021
By Xieu, Wilson ; Lewis, Levi S. ; Zhao, Feng ; ...
Source: PeerJ, 9, e12280

[PDF-784.42 KB]

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PeerJ
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Xieu, Wilson ; Lewis, Levi S. ; Zhao, Feng ; Fichman, Rachel A. ; Willmes, Malte ; ... More +

Xieu, Wilson ; Lewis, Levi S. ; Zhao, Feng ; Fichman, Rachel A. ; Willmes, Malte ; Hung, Tien-Chieh ; Ellison, Luke ; Stevenson, Troy ; Tigan, Galen ; Schultz, Andrew A. ; Hobbs, James A. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) Less -
Description:

The application of otolith-based tools to inform the management and conservation of fishes first requires taxon- and stage-specific validation. The Delta Smelt (Hypomesus transpacificus), a critically endangered estuarine fish that is endemic to the upper San Francisco Estuary (SFE), California, United States, serves as a key indicator species in the SFE; thus, understanding this species’ vital rates and population dynamics is valuable for assessing the overall health of the estuary. Otolith-based tools have been developed and applied across multiple life stages of Delta Smelt to reconstruct age structure, growth, phenology, and migration. However, key methodological assumptions have yet to be validated, thus limiting confidence in otolith-derived metrics that are important for informing major water management decisions in the SFE.
Keywords:

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Endangered Species Estuarine Ecology Otoliths Smelts Delta Smelt Estuarine Fish Freshwater General Agricultural And Biological Sciences General Biochemistry, Genetics And Molecular Biology General Medicine General Neuroscience Growth Otolith San Francisco Validation
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PeerJ, 9, e12280
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https://doi.org/10.7717/peerj.12280
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Journal Article
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urn:sha256:f5a3b5a2c1def0fa3edf0ae456fdd21eb0712dfeedde5953d035f1b96754dc05
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Experimental validation of otolith-based age and growth reconstructions across multiple life stages of a critically endangered estuarine fish

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