世界最大の完全に保護されたMPAからの溢出利益
Sarah Medoff1, John Lynham2, Jennifer Raynor3
1Cooperative Institute for Marine and Atmospheric Research, School of Ocean and Earth Science and Technology, University of Hawai'i at Mānoa, Honolulu, HI, USA.
まとめ
海洋保護区は 移動する魚に 恩恵をもたらします パパハナウモクアケア海洋国立公園は,黄魚と大眼魚の個体群に溢れる恩恵を示しています.
科学分野:
- 海洋保全
- 漁業科学
- エコロジー
背景:
- 海洋保護地域 (MPA) は 移住する種に 恩恵を与えるには 小さすぎます
- 大規模な海洋保護区が 移住種に与える効果は まだ十分に研究されていない.
研究 の 目的:
- 世界最大の完全に保護された海洋保護区であるパパハナウモクアケア海洋国立記念館からの転移効果を評価する.
- この大規模な保護区が 移住するトナザメの個体群に 利益をもたらすかどうかを判断する.
主な方法:
- 独立した漁業観察者からの種別データを使用した.
- MPAの近くと遠くの漁船の捕獲率の変化を分析した.
- MPAの2016年の拡張前と後のデータを比較した.
主要な成果:
- 漁業の利益の証拠が見つかりました
- 黄金魚 (Thunnus albacares) に対して認められた好影響
- ビッグアイ・トンナ (Thunnus obesus) に対して,ポジティブな影響が見られた.
結論:
- 大規模な海洋保護区は 移住物種にとって 重要な避難場所と 転移の恩恵をもたらします
- パパハナウモクアケアは 広範囲にわたる海洋保護区が 漁業管理に持つ可能性を示しています
- この調査結果は,商業的に重要なトナザメの保護の価値を裏付けています.
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