Reduce whale-ship strikes by making 2.6% of ocean surface safer
Spatial overlap between whales and shipping traffic.
(A) Average annual whale space use across blue, fin, humpback, and sperm whales. (B) Global marine shipping traffic for large (>300 gross tons) vessels, from AIS data from 2017 to 2022. The shipping traffic index weights shipping density by vessel speed on a log-scale, standardized between 0 and 1. (C) Bivariate map showing the intensity of both whale space use and shipping traffic in each 1° by 1° grid cell.
Paper Grundiad
Ship-strike risk hotspots for large whales.
(A) The spatial overlap of ship-strike hotspots across blue, fin, humpback, and sperm whales. Hotspots were defined as the top 1% of ship-strike risk for each species. Boxes show the locations of zoomed-in panels (B) to (H). (B to H) Hotspots and management zones for the west coast of North America (B), the Northern Indian Ocean (C), the Mediterranean region (D), the coast of East Asia (E), the east coast of South America (F), the coast of Southern Africa (G), and the east coast of Australia (H). (I) Regional percentages of hotspot protection (i.e., the number of hotspots that contained any management measure, either voluntary or mandatory, divided by the number of hotspots in that region) versus the percentage of total global hotspots in each region. There were no hotspots in the Southern Ocean for any species.
Spatial overlap between whales and shipping traffic.
(A) Average annual whale space use across blue, fin, humpback, and sperm whales. (B) Global marine shipping traffic for large (>300 gross tons) vessels, from AIS data from 2017 to 2022. The shipping traffic index weights shipping density by vessel speed on a log-scale, standardized between 0 and 1. (C) Bivariate map showing the intensity of both whale space use and shipping traffic in each 1° by 1° grid cell.
Paper Grundiad
Spoiler The 2.6% :
Ship-strike risk hotspots for large whales.
(A) The spatial overlap of ship-strike hotspots across blue, fin, humpback, and sperm whales. Hotspots were defined as the top 1% of ship-strike risk for each species. Boxes show the locations of zoomed-in panels (B) to (H). (B to H) Hotspots and management zones for the west coast of North America (B), the Northern Indian Ocean (C), the Mediterranean region (D), the coast of East Asia (E), the east coast of South America (F), the coast of Southern Africa (G), and the east coast of Australia (H). (I) Regional percentages of hotspot protection (i.e., the number of hotspots that contained any management measure, either voluntary or mandatory, divided by the number of hotspots in that region) versus the percentage of total global hotspots in each region. There were no hotspots in the Southern Ocean for any species.
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