A rising tide lifts all phytoplankton: Growth response of other phytoplankton taxa in diatom-dominated blooms

摘要: [1] Oceanic phytoplankton assemblages composed predominantly of picophytoplankton respond to the onset favorable growth conditions with diatom-dominated blooms, formation which involves characteristic and accumulation responses by both diatoms ambient nondiatom community. Contrary conventional wisdom, groups increase in rates absolute abundance, but biomass assemblage is modest, especially compared order magnitude or more diatom biomass. This enormous proportional has fostered misconception that replace taxa succession as bloom matures. However, while relative abundance decreases dramatically, their increases modestly specific rate increases; at same time, protistan grazing also increases, holding a new steady state concentration. Recent evidence for ubiquity additive response pattern pelagic blooms comes from observations many oceanic regions where equatorial upwelling, eddy dynamics, tropical instability waves, iron-addition experiments have allowed documentation biological rapid nutrient, micronutrient light conditions. The these well known; this report offers accurate description Realistic representation dynamics nondiatoms required improve forecasting how future will affect processes control carbon recycling export.