Can pigment fluxes give us information about biogeochemical processes in the Gulf of Lions?
Jose Velez Perez(1), Joan Fabres(2), Lynn Abramson(2), Zhanfei Liu(2) and J. Cindy Lee(2) The carbon cycle describes a series of processes that circulate carbon throughout the Earth’s atmosphere, land, and ocean. The ocean is an extremely important component of this cycle. Phytoplankton (small, unicellular algae in the ocean) take up CO2 from the air through the process of photosynthesis, and heterotophic animals and bacteria release CO2 by the process of respiration. Concentrations of different pigments can serve as indicators for particular organisms or processes involved in this cycle. Pigments are colored organic compounds important in absorbing light energy during photosynthesis. All primary producers use chlorophyll a to harness light energy. The zooplankton (small animals and protozoans) and bacteria degrade chlorophyll a to modified forms called pheopigments, which include pyropheophorbide, pheophorbide and pheophytin. The aim of this study is to use measured concentrations of
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