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This also makes it the longest-living octopus – most octopuses only live for 1 or 2 years – which this octopus beats with its brooding period alone. [ 4 ] [ 5 ] Female Graneledone boreopacifica tend to brood their eggs between the depths of 1,200 and 2,000 metres (3,900 and 6,600 ft); the eggs were never unattended.
O. tetricus start out as eggs that are laid in large numbers in the octopus's nest, approximately 270,000 eggs per female. [11] The eggs are normally glued to the rock or substrate at the top of the den created by the female octopus. The female usually lays her eggs over several nights in a string formation.
Octopus fisheries exist around the world with total catches varying between 245,320 and 322,999 metric tons from 1986 to 1995. [159] The world catch peaked in 2007 at 380,000 tons, and had fallen by a tenth by 2012. [160] Methods to capture octopuses include pots, traps, trawls, snares, drift fishing, spearing, hooking and hand collection. [159]
Marine scientists discovered what they dubbed an 'octopus garden' nearly two miles below sea level. 'We were just absolutely floored.' Just off California, octopuses are converging by the thousands.
The common octopus has world wide distribution in tropical, subtropical and temperate waters throughout the world. [12] [13] [14] They prefer the floor of relatively shallow, rocky, coastal waters, often no deeper than 200 m (660 feet). [14]
Researchers have documented an active octopus nursery, where hundreds of the deep-sea creatures cluster together to brood their eggs. Rare octopus discovery made 2 miles below the ocean surface ...
One deep-sea octopus species broods its eggs for four and a half years. Away from the hydrothermal vents in the near-freezing temperatures of the deep sea, egg-brooding periods are thought to last ...
A female can lay up to 500 eggs; clusters of eggs are joined by special stalks. The female then sits with her eggs until they are ready to hatch. If any creature comes near the eggs, the female will attack it, though if it kills the creature, will not eat it. The eggs take 50 to 80 days to hatch, but will hatch more quickly in warmer waters.