Plankton biogeochemistry

McKnight, D. M., R. L. Smith, R. A. Harnish, C. L. Miller, and K. E. Bencala. 1993. Seasonal relationships between planktonic microorganisms and dissolved organic material in an alpine stream. Biogeochemistry 21 39-59. 

Budge, S.M., and Parrish, C.C. (1998) Lipid biogeochemistry of plankton, settling matter and sediments in Trinity Bay, Newfoundland. II. Fatty acids. Qrg. Geochem. 29, 1547-1559. 

Howarth, R.W., Chan, F., and Marino, R. (1999) Do top-down and bottom-up controls interact to exclude nitrogen-fixing cyanobacteria from the plankton of estuaries explorations with a simulation model. Biogeochemistry 46, 203-231. 

Doyle, R. D., and T. R. Fisher. 1994. "Nitrogen fixation by periphyton and plankton on the Amazon floodplain at Lake Calado." Biogeochemistry 26 41-66. 

Le Quere, C., et al. (2005). Ecosystem dynamics based on plankton functional types for global ocean biogeochemistry models. Global Change Biol. 11, 2016—2040. 

As has been noted above, the Eastern Mediterranean is characterised by many eddies and jets (POEM, 1992). Indeed there are almost no areas of the basin which are not part of some mesoscale feature or other (Fig. 4.3). Yet the nutrient distribution (Kress Herat, 2001) and many of the plankton features such as bacterial abundance and activity and chlorophyll content (Yacobi etal., 1995) seem to be nearly constant across large parts of the basin except for those locations where they intersect major and persistent mesoscale features (Fig. 4.5). Under those circumstances major changes in nutrient distribution and productivity can be seen. The Rhodes Gyre and the Cyprus Eddy (aka Shikmona Gyre) are permanent features which always have an effect on the local biogeochemistry and have been studied in some detail. 

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