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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]
The informally named Casper octopus species were first discovered in 2016 in the Pacific Ocean, in water off Hawaii. [1] The two distinct Casper species are new to science but have not yet been formally named with a binomial name as no specimens have yet been collected - they are only known from imagery.
The octopus has been found as far south as Namibian waters and as far north as British waters. [5] In the early 1900s, many octopuses living all over the Atlantic and Indian oceans were classed as Opisthoteuthis grimaldii, but later scientists decided that only those specimens found in the Eastern Atlantic Ocean actually belonged to the species ...
Opisthoteuthis philipii is an octopus of the Indian Ocean. It lives off the coast of Kerala, India. [ 3 ] Known specimens were found between 275–365 m (902–1,198 ft) deep in the Arabian Sea [ 1 ] near Alappuzha .
American zoologist G. H. Parker found that the largest suckers on a giant Pacific octopus are about 6.4 cm (2.5 in) and can support 16 kg (35 lb) each. [3] The only other possible contender for the largest species of octopus is the seven-arm octopus ( Haliphron atlanticus ), based on a 61-kilogram (134-pound), incomplete carcass estimated to ...
The creatures are known as dumbo octopuses because of their “large” fins.
The octopus garden is believed to be home to some 20,000 female octopuses
The World Register of Marine Species lists these 23 genera: [1] Abdopus Norman & Finn, 2001 (7 species) Ameloctopus Norman, 1992 (monotypic) Amphioctopus P. Fischer, 1882 (16 species) Callistoctopus Taki, 1964 (11 species) Cistopus Gray, 1849 (4 species) Euaxoctopus Voss, 1971 (3 species) Galeoctopus Norman, Boucher & Hochberg, 2004 (monotypic)