The eastern tropical Pacific includes 28 million km2 of ocean between 23.5° N and S and
Central/South America and 140° W, and contains the eastern and equatorial branches of the …

Iron supply has been suggested to influence phytoplankton biomass, growth rate and
species composition, as well as primary productivity in both high and low NO 3− surface …

THE continental margins occupy less than 20% of the surface area of the world ocean, and it
is widely assumed that they do not play a significant part in the oceanic biogeochemical …

In the past, the importance of silicate as a limiting nutrient for new production in the ocean,
and in determining global productivity and carbon budgets, has been relegated to the lower …

Phytoplankton plays an important role in the global carbon cycle via the fixation of inorganic
carbon during photosynthesis. However, the efficiency of this “biological pump of carbon” …

Surface water transects and vertical profiles for dissolved iron, macronutrients, chlorophyll a
(Chl a), and hydrographic data were obtained in the Peru upwelling regime during August …

Zooplankton abundance, biomass (biovolume) and taxonomic composition were studied
within an annual cycle (August 1995–October 1996) in the Bay of Blanes (northwest …

Diatoms are key players in the global carbon cycle and most aquatic ecosystems. Their cell
sizes impact carbon sequestration and energy transfer to higher trophic levels. We report …

THE surface waters of the equatorial Pacific have unusually high nitrate and phosphate
concentrations, but relatively low phyto-plankton biomass1–3. This' high nitrate, low …

Two estimates of new production in the equatorial Pacific are presented and the similarity
between the physically based estimate and an estimate based on measurements of primary …