Free Content Origin and fate of a bloom of Skeletonema costatum during a winter upwelling/downwelling sequence in the Ría de Vigo (NW Spain)

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Abstract:

The onset, development and decay of a winter bloom of the marine diatom Skeletonema costatum was monitored during a 10 d period in the coastal upwelling system of the Ría de Vigo (NW Spain). The succession of upwelling, relaxation and downwelling-favorable coastal winds with a frequency of 10–20 d is a common feature of the NW Iberian shelf. The onset of the bloom occurred during an upwelling-favorable ½ wk period under winter thermal inversion conditions. The subsequent ½ wk coastal wind relaxation period allowed development of the bloom (gross primary production reached 8g C m−2 d−1) utilizing nutrients upwelled during the previous period. Finally, downwelling during the following ½ wk period forced the decay of the bloom through a combination of cell sinking and downward advection.

Document Type: Research Article

DOI: http://dx.doi.org/10.1357/002224005775247616

Publication date: November 1, 2005

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  • The Journal of Marine Research 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. In the area of biology, studies involving coupling between ecological and physical processes are preferred over those that report systematics. Authors benefit from thorough reviews of their manuscripts, where an attempt is made to maximize clarity. The time between submission and publication is kept to a minimum; there is no page charge.
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