MBARI found – Underwater Female Octopus “keeps brooding eggs for more than four years.”


Monterey Bay Aquarium Research Institute said, that one octopus stood watch over her eggs for four and half years before they hatched.

In May 2007, during one of these studies, the researchers identified a female octopus (Species – Graneledone boreopacifica) clinging to a rocky ledge just above the base of the canyon, some 1,400 meters (4,600 feet) beneath the sea surface. Complete the succeeding 4.5 years, they saw the same female octopus distinguished by the scratches on its body in the same area brooding over a clutch of eggs.

Bruce Robison a deep sea ecologist at MBARI and the source of the study, said, “It was the first time the brooding period of a deep sea octopus had been documented from the outset.”

In spite of little crabs and shrimp are the typical food for the octopus, that swam and crawled around the female, she expressed little interest in them other than to pull them away from her eggs.

In September 2011 is the last time that the Researcher seen, subsequently one month, they found that she was gone and egg capsules were empty. Most female octopuses lay only one circle of eggs and die about the time that their eggs incubate.

“We know so little about the deep sea that we’re always being astonished by the things we read”, said Robison.

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