Global Ocean Conservation Priorities – Food Provision

Numerical ranking of the global ocean to prioritize conservation actions aimed at maximizing fisheries benefits. The conservation action being prioritized is highly protected Marine Protected Areas (MPAs). Most important pixels are ranked higher (1) and least important pixels are ranked lower (0). Pixels ranked between 0.95-1, correspond to the most important 5% of the ocean. Pixels ranked between 0.9-1, correspond to the most important 10% of the ocean, and so on. Existing highly protected MPAs represent the starting condition of the analyses and are placed at the top of the ranking. Variable mapped: Global priority ranking for food provision Data Projection: Mollweide Equal Area Mosaic Projection: Mollweide Equal Area Extent: Global Cell Size: 50km Source Type: Thematic Source: National Geographic Society Publication: Sala, Enric, Juan Mayorga, Darcy Bradley, Reniel B. Cabral, Trisha B. Atwood, Arnaud Auber, William Cheung, et al. “Protecting the Global Ocean for Biodiversity, Food and Climate.” Nature, March 17, 2021. https://doi.org/10.1038/s41586-021-03371-z. We define the food provisioning potential of a given set of MPAs as the change in total future catch, relative to business as-usual fisheries management. We estimate this potential using habitat suitability maps for 1,150 commercially exploited fish and invertebrate stocks along with key life history and management variables including: Carrying capacity Intrinsic growth rate Relative mobility Exploitation rate This model assumes fishing effort redistributes entirely to the remaining fishing areas following MPA establishment.本数据集为全球海洋优先级数值排名，用于筛选优先开展的保护行动以实现渔业收益最大化。本次优先保护的行动为严格保护的海洋保护区（Marine Protected Areas, MPAs）。其中，最重要的海洋像元排名为1，最不重要的像元排名为0。排名处于0.95至1区间的像元，对应全球海洋中最重要的5%区域；排名处于0.9至1区间的像元，对应全球海洋中最重要的10%区域，以此类推。现有严格保护的海洋保护区为本次分析的初始状态，且位列排名榜首。 映射变量：粮食供给全球优先级排名 数据投影：摩尔魏特等面积镶嵌投影（Mollweide Equal Area） 空间范围：全球 像元分辨率：50千米 来源类型：专题数据 数据来源：国家地理学会 发表文献：Sala, Enric, Juan Mayorga, Darcy Bradley, Reniel B. Cabral, Trisha B. Atwood, Arnaud Auber, William Cheung et al. "Protecting the Global Ocean for Biodiversity, Food and Climate". *Nature*, 17 March 2021. https://doi.org/10.1038/s41586-021-03371-z. 我们将给定海洋保护区集合的粮食供给潜力定义为：相较于常规渔业管理情景下的未来总捕捞量变化。本研究通过1150种商业开发鱼类及无脊椎动物种群的栖息地适宜性地图，结合关键生活史特征与管理变量估算该潜力，包括：环境容纳量、内禀增长率、相对移动性、开发率。本模型假设：在海洋保护区设立后，捕捞努力量会完全重新分配至剩余捕捞区域。