japanese spider crab life cycle

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates. Despite it's spindly, spider-like appearance, the Japanese spider crab is absurdly huge.

spider crab as in crustation: Queenbee quite well sums it up. Macrocheira kaempferi (Japanese Spider Crab) is a species of decapods in the family Epialtidae. [2] It is one of the longest living creatures in the world, living up to 100 years. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form. [2] The Japanese spider crab has 8 legs and 2 arms used for feeding. It has the largest leg span of any arthropod, reaching up to 3.8 metres (12 ft) and weighing up to 19 kilograms (42 lb). [1], The Japanese spider crab has the largest leg span of any arthropod in the world, reaching up to 3.8 meters (12 ft) long, and weighing up to 19 kg (41 pounds),[1] but the actual body of the Japanese spider crab is only 38 cm (15 inches) long. Scientists and researchers estimate that this crab can weigh up to 44 pounds and can have a leg span of thirteen feet at their largest! The Japanese spider crab has special appendages called pleopods, which they employ to swim, and they breathe through their gills. After molting, these crabs will eat their own shell to get some important nutrients. [4], The Japanese spider crab is a scavenger, meaning it feeds mostly on dead animals, but it also feeds on shellfish, opening the shells with its giant claws to feed on them.
[4] The Japanese spider crab is different from other crab species because the first pleopods (legs which help them swim, catch food, hold their eggs, and sometimes has gills on it) of the males are twisted, and its larvae are not very complicated organisms unlike other crab species larvae. A taxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Although this animal can swim very well, it moves with the help of its legs. [1], The Japanese spider crab is found in the Pacific side of the Japanese islands, Konshu and Kyushu, usually at a latitude between 30 and 40 degrees North.

Fully grown, it can reach a leg span of almost 4 metres (13 feet), a body size of up to 37 centimetres (15 inches) and a weight of up to 20 kilograms (44 pounds). [5] The Japanese spider crab is found up to the depths of 2,500 feet (750 meters). Although the Japanese spider crab has some ferocious appearances, it is actually known to be very gentle towards others. They are found usually in the Sagami, Suruga, and Tosa bays, as well as off the coast of the Kii peninsula.

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