Research begun at Princeton University and recently reported on in the journal Nature Geoscience found that animals ranging from plankton to small fish consume vast amounts of what little oxygen is available in the ocean’s aptly named “oxygen minimum zone” daily.
Research begun at Princeton University found that the numerous small sea animals that migrate from the surface to deeper water every day consume vast amounts of what little oxygen is available in the ocean’s aptly named “oxygen minimum zone” daily. The findings reveal a crucial and underappreciated role that animals have in ocean chemistry on a global scale. The figure above shows the various depths (in meters) that animals migrate to during the day to escape predators. Red indicates the shallowest depths of 200 meters (650 feet), and blue represents the deepest of 600 meters (2,000 feet). The black numbers on the map represent the difference (in moles, used to measure chemical content) between the oxygen at the surface and at around 500 meters deep, which is the best parameter for predicting migration depth. (Courtesy of Daniele Bianchi)
By Morgan Kelly, Office of Communications
Morgan Kelly | EurekAlert!
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