New research shows how bullfishes, tunas, and sharks survive in ocean 'food deserts.'
focused on more than two decades of commercial fishery and satellite data from the North Pacific Subtropical Gyre, as well as an mix of predators from varying ocean depths, regions, and physiologies . They investigated predator catch patterns within and around the eddies, concluding that the swirling loops of ocean water influence the ecosystems of the open ocean at all levels of the food chain.
The data suggests a fundamental relationship between opportunities for predators for forage and the underlying physics of the ocean. The striped marlin is a species of billfish that is overfished in the North Pacific. A new study co-led by WHOI finds that marine predators, like the striped marlin, aggregate in anticyclonic, clockwise-rotating ocean eddies to feed. CREDIT: Pat Ford
“The idea that these eddies contain more food means they’re serving as mobile hotspots in the ocean desert that predators encounter, target and stay in to feed,”
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