Lucent Biosciences Phytoplankton Nutrient Formulations

受阳光照射的海洋上层自然富含铁元素，但在广阔的海洋区域，浮游植物的生产力受到低铁元素的限制。例如，智利中部的近海水域富含氮和磷，但浮游植物的生长，因此整个生态系统，受到稀缺的铁的限制。我们的假设是，在幼鱼游动和卵孵化的地点和时间添加铁来刺激浮游植物繁殖，将降低死亡率，增加补充，增加鱼类生物量。朗讯生物科技公司已经开发出专有的营养配方来刺激浮游植物的生产力。为了开发这些配方以刺激可收获的海洋生产力，他们必须确定：i)配方是否支持各种海洋浮游植物的加速生长和更高的种群规模。ii)该配方是否对多种海洋浮游植物显示毒性i)该配方是否改变海洋浮游植物的下沉速度，这决定了增加的产量可用于向食物网转移的时间。坎贝尔实验室在浮游植物生长速率和沉降体的高通量分析方面具有专业知识。他们将分析朗讯生物科技配方对海洋浮游植物生长、下沉和活力的影响。

The sunlit upper layer of the ocean is naturally fertilized with iron, yet phytoplankton productivity is limited bylow iron across wide oceanic regions. For example the waters offshore central Chile are high in nitrogen andphosphorus but phytoplankton growth, and therefore the entire ecosystem, is limited by scarce iron. Ourhypothesis is that adding iron to stimulate a phytoplankton bloom at location(s) and time(s) when juvenile fishare shoaling and eggs are hatching will decrease mortality and increase recruitment, increasing fish biomass.Lucent Biosciences, Inc. has developed proprietary nutrient formulations to stimulate phytoplanktonproductivity. To develop these formulations to stimulate harvestable marine productivity they must determine:i) Whether the formulation supports accelerated growth and higher population sizes of diverse marinephytoplankters.ii) Whether the formulation shows toxicity to diverse marine phytoplanktersii) Whether the formulation alters the sinking rate of marine phytoplankters which determines how longincreased production is available for transfer up the food web.The Campbell lab has expertise in high throughput analyses of phytoplankton growth rates and sinkingrates. They will analyze the effects of the Lucent Biosciences formulations on growth, sinking and vitality ofmarine phytoplankton.