地球規模の海洋生態系における大気の栄養
T K Westberry1, M J Behrenfeld1, Y R Shi2,3
1Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, USA.
まとめ
砂漠の塵は 海の植物プランクトンに 大きく影響し その成長と健康に 影響を及ぼします 気候変動により この重要な栄養源が変化し 海洋生態系に影響を及ぼします
科学分野:
- 海洋学
- 海洋生態学
- 大気科学
背景:
- 地表の海洋における 植物プランクトンの成長は 深い水と大気中の塵からの栄養に依存しています
- 海洋生態系に与える影響の量化が困難です
研究 の 目的:
- 大気中の塵の堆積が公海における植物プランクトンに及ぼす影響を全般的に評価する.
- 粉塵に対する植物プランクトンの反応の地域的変動を理解する.
主な方法:
- グローバル・サテライト・オーシャン・カラー・プロダクトを利用した.
- 異なる栄養状態における植物プランクトンの反応を分析した.
主要な成果:
- 塵の堆積に対する植物プランクトンの 広範な反応を示した.
- バイオマスと生理学的状態の変化を含む,観察された地域差異.
- 植物プランクトンに影響を与える 重要な栄養源として 塵を特定した.
結論:
- 大気中の塵は様々な海洋地域における 植物プランクトンの動態に大きな影響を与えます
- 気候によるエアロゾールの変化により 塵が海洋の栄養源として果たす役割が変わります
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