A trio of marine researchers at Deakin University's School of Life and Environmental Sciences in Australia has found that little penguins attempt to optimize their predatory behavior by making trade-offs between minimizing energy costs and increasing capture rates. In their study, reported in the journal Royal Society Open Science, Natalie Petrovski, Grace Sutton and John Arnould attached tiny video cameras to several of the penguins to study their hunting behavior.
, too—sharks may choose to attempt to chase down a sea lion for a big payoff, or nosh on easy-to-catch crustaceans or mollusks.that inhabit the Bass Strait, which lies between the southern coast of Australia and the northern coast of Tasmania. Prior research has suggested that two major colonies live in the strait and have a population of between 85,000 and 152,00 breeding pairs.
To learn more about little penguins and their feeding habits, the researchers captured and affixed video cameras to several specimens and then released them in the area where they had been captured. Data from the cameras was retrieved by recapturing the penguins and removing the cameras. The research team found that little penguins consumed seven main types of prey, one of which was the bellowsfish. This was a surprise because they typically hide under jellyfish. The researchers found that the little penguins also used different strategies for capturing prey that had not been seen before.
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