21 世紀 に 沿海 植物 プランクトン の 繁殖 が 拡大 し,強まり ます
Yanhui Dai1, Shangbo Yang1, Dan Zhao1
1School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, China.
Nature
|March 1, 2023
まとめ
世界的な衛星データによると 沿岸部の植物プランクトンが増えており 漁業や生態系に 影響を与えていることが判明しています これらの有害な藻類の繁殖は 2003年から2020年にかけて空間的範囲と頻度で拡大し,よりよいリスク評価が必要になりました.
科学分野:
- 海洋生物学
- 海洋学
- リモートセンシング
背景:
- 沿岸部に生息する植物プランクトンは 生態学的な恩恵をもたらしますが 環境に害を及ぼします
- 花の発生と分布に関する詳細なグローバルデータは欠けています.
- 沿岸の生態系管理には 咲き花のダイナミクスを理解することが重要です
研究 の 目的:
- 2003年から2020年までの世界の海上藻類の日常的な咲き方をマッピングする.
- 咲く範囲と頻度の変化を特徴づけるため
- 海面温度や海流の流れを調査する
主な方法:
- 1kmの空間解像度で地球を観測した.
- 海洋沿岸の藻類の花のデータを分析した.
- 傾向と環境要因との関係を評価するために統計分析を行いました.
主要な成果:
- 153の沿岸国のうち126カ国で 藻類の開花が記録されました
- 空間的範囲 (+ 13. 2%) と発芽頻度 (+ 59. 2%) が著しく増加した.
- 熱帯と亜熱帯の北半球地域では,海面温度上昇と海洋循環に関連して,花が弱まりました.
結論:
- この研究は,沿岸の植物プランクトン開花の包括的なグローバルマップを提供します.
- 発見は,増殖のリスクと利益を強調し,管理戦略に情報を与えます.
- このデータは,ブームの影響と政策評価のグローバル評価の基礎となる.
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