2024-03-28T16:28:54Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/76882018-09-13T07:11:51Zcom_10261_2855com_10261_4col_10261_2857
Biological activity in the wake of an island close to a coastal upwelling
Sandulescu, Mathias
López, Cristóbal
Hernández-García, Emilio
Feudel, Ulrike
Plankton
Chaotic advection
Turbulence
Upwelling
Vortex dynamics
Island wake
Primary production
10 pages (final published version).-- Pre-print available at: http://arxiv.org/abs/0802.3532 (42 pages, 9 figures).-- Published online 10 March 2008.
Hydrodynamic forcing plays an important role in shaping the dynamics of marine organisms, in particular of plankton. In this work we study the planktonic biological activity in the wake of an island which is close to an upwelling region. Our research is based on numerical analysis of a kinematic flow mimicking the hydrodynamics in the wake, coupled to a three-component plankton model. Depending on model parameters different phenomena are described: a) The lack of transport of nutrients and plankton across the wake, so that the influence of upwelling on primary production on the other side of the wake is blocked. b) For sufficiently high vorticity, the role of the wake in facilitating this transport and leading to an enhancement of primary production. Finally c) we show that under certain conditions the interplay between wake structures and biological growth leads to plankton blooms inside mesoscale hydrodynamic vortices that act as incubators of primary production.
2008-10-14T11:05:02Z
2008-10-14T11:05:02Z
2008-09
artículo
Ecological Complexity 5, 228-237 (2008)
1476-9840
http://hdl.handle.net/10261/7688
10.1016/j.ecocom.2008.01.003
eng
http://dx.doi.org/10.1016/j.ecocom.2008.01.003
openAccess
Elsevier