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Free Content The spatial and temporal structure of hydrographic and phytoplankton biomass heterogeneity along the Catalan coast (NW Mediterranean)

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The horizontal and temporal distribution of hydrographic properties and phytoplankton biomass along the Catalan coast were analyzed to determine their variance structure (i.e., variance partition between temporal, alongshore, and across-shore components), and the relationship between hydrographic heterogeneity and variability in phytoplankton biomass.

Temporal chlorophyll variability was highly seasonal, but horizontal biomass variability was related to hydrographic variability, as evidenced by significant correlations to temperature and salinity. The strength of chlorophyll-salinity correlations changed according to the extent of riverine influences within the area, but significant correlations were always negative, indicating enhanced phytoplantkon growth due to river runoff. Temperature-chlorophyll correlations changed seasonally, from highly positive in early summer to negative by late summer. In addition, horizontal biomass patterns were dominated by an onshore-offshore decrease, which were altered by modifications of water circulation associated to topographic features such as canyons and shelf concavities.

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Document Type: Research Article

Publication date: November 1, 1989

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  • The Journal of Marine Research, one of the oldest journals in American marine science, publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography. Articles that deal with processes, as well as those that report significant observations, are welcome. Biological studies involving coupling between ecological and physical processes are preferred over those that report systematics. The editors strive always to serve authors and readers in the academic oceanographic community by publishing papers vital to the marine research in the long and rich tradition of the Sears Foundation for Marine Research. We welcome you to the Journal of Marine Research.
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