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- W2794945273 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 596:165-179 (2018) - DOI: https://doi.org/10.3354/meps12576 Population connectivity of southern flounder in the US South Atlantic revealed by otolith chemical analysis Verena H. Wang1,3,*, J. Wilson White1,4, Stephen A. Arnott2, Frederick S. Scharf1 1Department of Biology and Marine Biology, University of North Carolina Wilmington, 601 S. College Road, Wilmington, North Carolina 28403, USA 2Marine Resources Research Institute, South Carolina Department of Natural Resources, PO Box 12559, Charleston, South Carolina 29422, USA 3Present address: Division of Coastal Sciences, University of Southern Mississippi, 703 East Beach Road, Ocean Springs, Mississippi, 39564, USA 4Present address: Department of Fisheries and Wildlife, Coastal Oregon Marine Experiment Station, Oregon State University, 2030 SE Marine Science Drive, Newport, Oregon 97365, USA *Corresponding author: verena.wang@usm.edu ABSTRACT: Reconstructing the movements of fish among different environments and incorporating patterns of spatial population structure contribute to improved accuracy in the assessment of marine fishery resources. The southern flounder Paralichthys lethostigma is a valuable flatfish throughout its range in the US South Atlantic and Gulf of Mexico, but stock conservation and management is hindered by critical knowledge gaps related to patterns of movement and the level of mixing among populations. Identifying stock structure and connectivity can be challenging in species with complex life histories, and otolith geochemical signatures have been effectively used as natural markers to estimate population connectivity in migratory fishes. With this approach, we inferred the degree of exchange of southern flounder among broad US South Atlantic regions by predicting the nursery origins of adults captured in North Carolina and South Carolina estuaries. Baseline nursery profiles were first established by analyzing stable isotopes (δ13C, δ18O) and trace elements (Mg:Ca, Mn:Ca, Sr:Ca, Ba:Ca) sampled from juvenile southern flounder otoliths. Quadratic discriminant analysis discriminated among state-scale nursery regions (North Carolina, South Carolina, and Florida) with 72% cross-validation accuracy. Adult southern flounder from the same cohort were subsequently classified to the atlas of nursery signatures obtained from the juvenile fish using a maximum likelihood mixed stock analysis. Results revealed a lack of nursery-state fidelity and the potential for broad-scale movement of post-migratory adults along the US South Atlantic coast, which will contribute to the definition of appropriate spatial scales for management. KEY WORDS: Nursery origin · Stock structure · Migration · Stable isotopes · Laser ablation ICPMS · Paralichthys lethostigma Full text in pdf format Supplementary material PreviousNextCite this article as: Wang VH, White JW, Arnott SA, Scharf FS (2018) Population connectivity of southern flounder in the US South Atlantic revealed by otolith chemical analysis. Mar Ecol Prog Ser 596:165-179. https://doi.org/10.3354/meps12576 Export citation Mail this link - Contents Mailing Lists - RSS Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 596. Online publication date: May 28, 2018 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2018 Inter-Research." @default.
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- W2794945273 title "Population connectivity of southern flounder in the US South Atlantic revealed by otolith chemical analysis" @default.
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