A new twist in marine upwellings at a well-known feeding ground Oceanographers have learned more about the reasons for the year-round presence of marine predators in the eastern Great Australian Bight, including several whale species and white sharks that draw cage divers and Jaws-inspired filmmake
A new twist in marine upwellings at a well-known feeding ground
“To conserve this important region, and prepare for climate change, we need to further understand these systems and food sources,” saysContinental Shelf Research“To understand this, we explored year-to-year variations of phytoplankton layers in the region using satellite data in conjunction with water-column data from the Integrated Marine Observing System .”
Seasonal upwelling of nutrient-rich water drives phytoplankton production, which Jochen Kaempf, an associate professor of oceanography at Flinders University, and colleagues have been studying for over 20 years. Associate Professor Kaempf says this new study highlights how the marine food chain survives even in years when the surface phytoplankton upwelling doesn’t occur.
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