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Spatio-temporal dynamics of a fish spawning aggregation and its fishery in the Gulf of California
Erisman, B.; Aburto-Oropeza, O.; Gonzalez-Abraham, C.; Mascareñas-Osorio, I.; Moreno-Báez, M.; Hastings, P.A. (2012). Spatio-temporal dynamics of a fish spawning aggregation and its fishery in the Gulf of California. NPG Scientific Reports 2(284): 11 pp. dx.doi.org/10.1038/srep00284
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322, more
Peer reviewed article

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Keyword
    Marine

Authors  Top 
  • Erisman, B.
  • Aburto-Oropeza, O.
  • Gonzalez-Abraham, C.
  • Mascareñas-Osorio, I.
  • Moreno-Báez, M.
  • Hastings, P.A.

Abstract
    We engaged in cooperative research with fishers and stakeholders to characterize the fine-scale, spatio-temporal characteristics of spawning behavior in an aggregating marine fish (Cynoscion othonopterus: Sciaenidae) and coincident activities of its commercial fishery in the Upper Gulf of California. Approximately 1.5–1.8 million fish are harvested annually from spawning aggregations of C. othonopterus during 21–25 days of fishing and within an area of 1,149 km2 of a biosphere reserve. Spawning and fishing are synchronized on a semi-lunar cycle, with peaks in both occurring 5 to 2 days before the new and full moon, and fishing intensity and catch are highest at the spawning grounds within a no-take reserve. Results of this study demonstrate the benefits of combining GPS data loggers, fisheries data, biological surveys, and cooperative research with fishers to produce spatio-temporally explicit information relevant to the science and management of fish spawning aggregations and the spatial planning of marine reserves.

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