Lucent Biosciences Phytoplankton Nutrient Formulations

朗讯生物科学浮游植物营养配方

• 批准号: 514820-2017
• 负责人: Campbell, Douglas
• 金额: $ 1.82万
• 依托单位: Mount Allison University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639323
• 关键词: Lucent; Biosciences; Phytoplankton; Nutrient; Formulations

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.

阳光照射下的海洋上层自然富含铁，但浮游植物的生产力受到广泛海洋区域低铁的限制。例如，智利中部近海的沃茨氮和磷含量很高，但浮游植物的生长，因此整个生态系统，受到缺铁的限制。我们的假设是，在幼鱼浅滩和卵孵化的位置和时间加入铁来刺激浮游植物水华，将降低死亡率，增加补充，增加鱼类生物量。已开发出专有的营养配方，以刺激植物生长。为了开发这些配方来刺激可收获的海洋生产力，他们必须确定：i）该配方是否支持不同海洋浮游植物的加速生长和更高的种群规模。ii）该配方是否对不同海洋浮游植物显示出毒性ii）该配方是否改变海洋浮游植物的下沉率，这决定了增加的产量可以在多长时间内转移到食物网上。坎贝尔实验室在浮游植物生长率和下沉率的高通量分析方面拥有专业知识。他们将分析朗讯生物科学配方对海洋浮游植物生长、下沉和活力的影响。