Carnivore seastars tie with polar bears as top predators of Artic, study finds
The study’s authors say “megafaunal-predatory” Pterasteridae seastars thrive in this realm “because of their evolved defence mechanism associated with a diet of other predators, including marine mammal carcasses that settle onto the ocean floor.”Amiraux said that while polar bears do not consume starfish, “the opposite is quite true.
The Southampton Island region has been identified as an area of interest for Marine Protected Area designation by Fisheries and Oceans Canada.He noted that though the study focused on an area in the Arctic, starfish are found worldwide, so it is likely that “there is the same structure or the same food web everywhere on the sea floor.”
“I don’t think it’s a special feature of the coastal environment,” he said. “We pretty much will be able to see that in all environments.”
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