Fishery
Temminck, in his original description, noted that the crab was known to the Japanese for the serious injuries it can cause with its strong claws. Nonetheless, the Japanese spider crab is "occasionally collected for food"; a total of 24.7 tonnes (54,000 lb) were collected in 1976, but only 3.2 tonnes (7,100 lb) in 1985. The fishery is centred around Suruga Bay, and the population has decreased in number, forcing fishermen into exploring deeper waters to catch them. The average size caught by fishermen is a leg span of 1.0–1.2 m (3 ft 3 in–3 ft 10 in).
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