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| In the nonmigrating case, upwelling advects surface waters offshore. Early in the simulation, the upwelled water contains individuals that were randomly seeded into deep water, but later on most of the deep dwelling individuals have expired due to starvation (there is little food at depth), and the upwelled waters are lacking individuals. Eventually, the nearshore region becomes depauperate in individuals, as is shown here for day 80 of the simulation. Abundances are high offshore, since there has been some production and advection of food (upper panel) offshore and this is sufficient to support growth and development of the copepods occurring there. Note the large number of small particles offshore. Click here to retrieve Click here to retrieve an flc animation of daily snapshots of the model output. |