IS THE CHANGE OF FOOD MATERIAL AFFECTING THE TROPHIC ACTIVITY OF FILTER-FEEDERS AT POTTER COVE?

TATIÁN, M.; LAGGER, C.; DEMARCHI, M.; LÓPEZ GORDILLO, F.J.; MERCURI, G.; QUARTINO, L.; SAHADE, R.; SERVETTO, N.; TORRE, L.; VARELA, M.M.

Buenos Aires, Argentina

Congreso; SCAR 4th Open Science Conference; 2010

SCAR

A rich benthic community dominated by filter-feeders occupies the shallow areas of Potter Cove, in spite of what appears to be unfavorable conditions for their feeding activities. These conditions include high inorganic sedimentation (mainly during summer) and low pelagic primary production. The use of a wide spectrum of food particles was stated to be the unique way for filter-feedersto mantain this high secondary biomass, even more since another source of