Coastal ecosystems biogeochemical cycle

Bockheim, J. G., and S. Langley-Turnbaugh. 1997. Biogeochemical cycling in coniferous ecosystems on different aged marine terraces in coastal Oregon. Journal of Environmental Quality 26 292-301. 

Ragueneau, O., Deblasvarela, E., Treguer, P., Queguiner, B, and Elamo, Y.D. (1994) Phytoplankton dynamics in relation to the biogeochemical cycle of silicon in a coastal ecosystem of western Europe. Mar. Ecol. Prog. Ser. 106 157-172. 

Seitzinger, S.P., and Kroeze, C. (1998) Global distribution of nitrous oxide production and N inputs in freshwater and coastal marine ecosystems. Global Biogeochem. Cycles 12, 93-113. 

Due to the paucity of reports, we can only speculate on the importance of marine fungi in biogeochemical cycling. Also, because of the dependence of fungi on carbon, it can be expected that their abundance will be determined mostly by the availability of carbon, which increases from the open oceans to coastal seas, to coastal and estuarine ecosystems, such as salt marshes. No doubt partly due to their relative accessibility, salt marshes are the most studied marine ecosystems in relation to fungi. 

Bienfang P. K. (1992) The role of coastal high latitude ecosystems in global export production. In Primary Productivity and Biogeochemical cycles in the Sea (eds. P. G. Falkowski and A. Woodhead). Plenum, New York, pp. 285-297. 

Important for understanding factors controlling the biogeochemical cycle of PCBs In the environment more specifically aquatic ecosystems Including estuaries. Our data have demonstrated this for the case of a severely polluted coastal estuarine area, both for the data discussed herein and for pore water, sediment and water column data presented and discussed elsewhere (10, 30). 

Figure 4 Biogeochemical cycle for chlorinated hydrocarbon pesticides and PCBs in coastal ecosystems. 

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