Marine production mechanisms

abyssal environment afrique du sud algae ambiente abisal ambiente pelagico benthos bentos canada carbon carbone carbono chlorophylle chlorophylls clorofilas ecosistema ecosystems filipinas fitoplancton hidrobiologia hydrobiologie hydrobiology japan japon milieu abyssal niveau trophique nutrientes nutrients pelagic environment philippines photosynthese photosynthesis phytoplancton phytoplankton productividad productivity south africa substance nutritive trophic levels urss ussr zooplancton zooplankton