気候が北東大西洋のプランクトン生態系に与える影響

Anthony J Richardson¹, David S Schoeman

¹Sir Alister Hardy Foundation for Ocean Science, The Laboratory, Citadel Hill, Plymouth, PL1 2PB, UK. anr@sahfos.ac.uk

Science (New York, N.Y.)

|September 14, 2004

まとめ

地球温暖化が海洋生態系に与える影響. 海面の温暖化は植物プランクトンを移動させ,食物網と海洋生物全体に影響を与えます.

科学分野:

マリン・バイオロジーマリン・バイオロジー
海洋学海洋学海洋学
気候変動科学気候変動科学

背景:

地球温暖化は起きていますが,海洋ペラジック領域への影響はほとんど不明です.
海洋ペラジック領域は,世界最大の生態系である.

研究の目的:

海面温暖化が北東大西洋の植物プランクトンに与える影響を調査する.
これらの変化が海洋食物網を通してどのように広がるのかを理解する.

主な方法:

海面温度データを分析する.
異なる温度領域における植物プランクトンの豊富さの評価.
トロフィックカップリングの効果の評価,より高いトロフィックレベルで.

主要な成果:

北東大西洋における海面温暖化は,より涼しい地域での植物プランクトンの増加と,より暖かい地域での豊富な量の減少と相関しています.
植物プランクトンの変化は,緊密なトロフィックカップリング (ボトムアップ制御) によるコペポッドの草食動物と動物プランクトンの肉食動物に影響を及ぼします.

結論:

将来の海洋温暖化により,主魚類と次魚類の生産の空間的分布が変化する可能性が高い.
これらの変化は,海洋生態系サービスに影響を及ぼし,魚と哺乳類の個体数に対するストレスを増加させるでしょう.

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