Evidence of spillover benefits from large-scale marine protected areas to purse seine fisheries

• 成果类型: Article
• 署名作者: Lynham, John; Villasenor-Derbez, Juan Carlos
• 署名单位: University of Hawaii System; University of Hawaii Manoa; Stanford University; University of Miami; University of Miami
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13806
• DOI: 10.1126/science.adn1146
• 发表日期: 2024-12-01
• 页码: 1276-1281
• 关键词: bigeye tuna; reserves; CONSERVATION; mpa

摘要

Global tuna fisheries are valued at more than $40 billion, with the majority of this value derived from purse seine fisheries. Recently created large-scale marine protected areas are potentially big enough to protect highly migratory species such as tuna, possibly leading to increases in abundance (a conservation benefit) and consequent spillover near protected area boundaries (an economic benefit). Using publicly available data from nine large-scale marine protected areas across the Pacific and Indian oceans, we find that catch-per-unit-effort in tuna purse seine fisheries has increased by an average of 12 to 18% near protected area boundaries, and this increase declines with distance from the boundaries. The increase is larger for bigeye tuna (Thunnus obesus) than for skipjack tuna (Katsuwonus pelamis), in line with fisheries science simulation models.