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Life history traits and spatiotemporal distributional patterns of copepod populations in the Gulf of Maine-Georges Bank region

2009; Inter-Research; Volume: 384; Linguagem: Inglês

10.3354/meps08032

1616-1599

Rubao Ji, CS Davis, Changsheng Chen, RC Beardsley,

Oceanographic and Atmospheric Processes

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 384:187-205 (2009) - DOI: https://doi.org/10.3354/meps08032 Life history traits and spatiotemporal distributional patterns of copepod populations in the Gulf of Maine-Georges Bank region Rubao Ji1,4,*, Cabell S. Davis1, Changsheng Chen2,4, Robert C. Beardsley3 1Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA 2The School for Marine Science and Technology, University of Massachusetts Dartmouth, New Bedford, Massachusetts 02744, USA 3Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA 4Marine Ecosystem and Environment Laboratory, Shanghai Ocean University, PR China *Email: rji@whoi.edu ABSTRACT: Life history traits play a significant role in determining the spatiotemporal distributional patterns of marine zooplankton, but biological–physical mechanisms controlling the population dynamics need to be further examined. In the present study, we used a coupled biological–physical model to examine the processes controlling the observed distributional patterns of 3 representative copepod populations in the Gulf of Maine-Georges Bank region including Pseudocalanus spp., Centropages typicus and C. hamatus. The model reveals that the shorter generation time of Pseudocalanus spp. at cold temperatures, together with their egg-carrying strategy, allows an earlier population development compared to Centropages spp. The model further reveals that predation mortality plays an important role in the decline of Pseudocalanus spp. in the warm season, and that the resting egg strategy is crucial for the persistence of the C. hamatus population in the Gulf of Maine-Georges Bank region. Analyses of observational data and model results suggest that temperature- and food-dependent egg production and development rates, temporally and spatially varying mortality rates and physical transport are important contributors to the formation of characteristic distributional patterns for the copepod populations in the system. KEY WORDS: Life history traits · Modeling · Zooplankton · Copepod · Population dynamics Full text in pdf format PreviousNextCite this article as: Ji R, Davis CS, Chen C, Beardsley RC (2009) Life history traits and spatiotemporal distributional patterns of copepod populations in the Gulf of Maine-Georges Bank region. Mar Ecol Prog Ser 384:187-205. https://doi.org/10.3354/meps08032 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 384. Online publication date: May 29, 2009 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2009 Inter-Research.