WebFeb 26, 2016 · The concentrations of chlorophyll a and nitrate indicated that Sts. 10 and 11 were in the high-nutrient low-chlorophyll region, suggesting that biological production was limited by trace metals ... WebThe limitation of iron (Fe) makes the North Pacific a typically high-nitrate, low-chlorophyll (HNLC) region in comparison with other oceanic regions of the world. Iron inputs from land via river discharge and atmospheric dust deposition are the primary processes introducing Fe into the ocean.
Evidence for phytoplankton iron limitation in the ... - ResearchGate
WebMar 1, 1999 · Abstract. Deficiency in bioavailable iron and grazing pressure have been proposed as alternative explanations for the existence of oceanic high nutrient-low … The parameter dependency of the various “excitable” phenomena, trigger … Frequency distribution of the number of experimental factors included in a … A 1-D coupled physical-biogeochemical model is used to study the seasonal … Thus, at least at high nutrient loads, this simplest N–P–Z model suffers from the … We construct a one-dimensional ecosystem model (nitrate, ammonium, … The nocturnal decreases also were associated with increases in the surface … The role of trace metal limitation in the maintenance of the high nutrient and low … Hypotheses to explain high-nutrient conditions in the open sea. Limnology … Chlorophyll concentrations were initially near 0.2 mg m-3, and reached 0.8 mg m … The Port Phillip Bay environment study (PPBES) was a large multi-disciplinary … marina craig
Iron and phosphorus co-limit nitrogen fixation in the eastern
WebAbstract. Nitrogen (N) and phosphorus (P) commonly co-limit primary productivity in lakes, and chlorophyll a (Chl-a) is predicted to be greatest under high N, high P regimes. Because land use practices can alter N and P biogeochemical cycles in watersheds, it is unclear whether previously documented phytoplankton–nutrient relationships apply ... WebFeb 22, 2024 · Here we identify a recurring phytoplankton bloom in the high-nutrient, low-chlorophyll waters of the Antarctic Circumpolar Current in the Pacific sector of the SO, that we argue is fed by iron of ... WebFeb 23, 2024 · Chlorophyll is a fat-soluble pigment found naturally in plants. It is the substance that gives plants their green color and helps them create energy via … dallas preview