Scientists from the Monterey Bay Aquarium Research Institute (MBARI) have made a remarkable discovery about the behavior of female pearl octopuses and their migration patterns.
These intelligent creatures have been found to travel to a fascinating location known as Davidson Seamount, an underwater volcano on the verge of extinction, in order to bathe in its warm thermal spring waters while pregnant, a process known as brooding.
This discovery has shed light on the significance of this underwater volcano and its impact on marine life. Located deep below the ocean’s surface just off the Central California coast, Davidson Seamount is home to The Octopus Garden, the largest known aggregation of octopus in the world.
As scientists delve into the intricacies of this natural wonder, they have started to recognize the importance of understanding and protecting these hotspots of life on the deep seafloor. The sheer size of The Octopus Garden, estimated to have over 20,000 octopus nests, is a testament to the abundance of marine life that thrives in this unique environment.
One of the key reasons why female pearl octopuses migrate to Davidson Seamount is the beneficial effect of the warm thermal spring waters on their developing eggs. It has been observed that octopus brood periods respond strongly to ocean temperature, with colder waters significantly slowing down the development of the eggs.
In the frigid depths where these creatures reside, it was initially expected that it would take five to eight years, or even longer, for the octopus eggs to hatch. However, the scientists were astounded to discover that the eggs at The Octopus Garden hatched in less than two years.
The warm waters of the thermal springs expedite the growth of the eggs, enabling them to develop at a faster rate than in cold water. This accelerated development not only benefits the offspring but also increases their chances of survival.
The period of brooding is a critical time for the embryos as they are vulnerable to predation, infection, and injury. The presence of their mother offers a certain level of protection, but unfortunate circumstances can occur when the mother’s energy reserves are depleted, and she dies before the eggs can hatch.
With a shorter brood period at The Octopus Garden, the risk of developing embryos being harmed or eaten is considerably reduced. This ensures a higher survival rate among the hatchlings, as they have a better chance of thriving independently even if their mother passes away.
The combination of warm thermal spring waters and the presence of multiple octopuses in close proximity creates an environment that supports the successful growth and survival of these remarkable creatures.
The discovery of The Octopus Garden and its significance in the reproductive journey of female pearl octopuses is a testament to the wonders of the natural world and the intricate relationships that exist within it. These findings not only expand our knowledge of octopus behavior but also highlight the importance of protecting and preserving these fragile ecosystems.
As scientists continue to study and monitor The Octopus Garden, they hope to unravel more mysteries and gain a deeper understanding of the intricate web of life that thrives beneath the ocean’s surface.
The E/V Nautilus captured astounding footage of The Octopus Garden.
