Estuarine-coastal connectivity and partial migration of southern flounder in the Gulf of Mexico

Estuarine-coastal connectivity and partial migration of southern flounder in the Gulf of Mexico

Southern flounder (Paralichthys lethostigma) from an estuarine complex in the Gulf of Mexico were tagged with acoustic transmitters (n = 60) from 2016 to 2018 to assess estuarine-coastal connectivity during fall/winter spawning runs. Both egress and residency behaviors were observed for adult southe...

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Veröffentlicht in:Estuarine, coastal and shelf science coastal and shelf science, 2023-11, Vol.294, p.108545, Article 108545
Hauptverfasser: Steffen, Christopher, Stephens, Shane, Dance, Michael A., Lippi, Daniel L., Jensen, Christine C., Wells, R.J. David, Rooker, Jay R.
Format: Artikel
Sprache:eng
Schlagworte:
Estuarine-dependent
Overwintering
Partial migration
Population connectivity
Residency
Spawning migration
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Zusammenfassung:Southern flounder (Paralichthys lethostigma) from an estuarine complex in the Gulf of Mexico were tagged with acoustic transmitters (n = 60) from 2016 to 2018 to assess estuarine-coastal connectivity during fall/winter spawning runs. Both egress and residency behaviors were observed for adult southern flounder caught in the Galveston Bay Complex (GBC), and individuals were classified as migrators or residents based on their maximum distance detected (MDD). Migrators (MDD >5 km; mean 13.8 km) displayed directed egress out of the GBC, with individuals moving through the tidal pass in November and December, peaking in mid to late December. In contrast, residents (MDD
ISSN:0272-7714
1096-0015
DOI:10.1016/j.ecss.2023.108545