a black marlin 2500 pounds
The heaviest spider crab, captured in 1921, weighed in at 41 pounds. For the Japanese spider crab, the largest species, 16 to 18 kg is not uncommon. Other species can be much lighter, for example in one north sea species a typical adult would be in the range of 1 to 3 kg.
A Gray Whale
http://www.discoverfishingbc.ca/fun-and-games/fishGo to think link, and it will tell you of 9 of the largest sea creatures caught, including the kind crab.
The largest non-extinct arthropod in size was a Japanese spider crab caught in 1921 measuring about 12 feet across the claws. The heaviest on record was a lobster weighing about 45 pounds. On land, the largest is the coconut crab at about 3 feet across. Some anecdotal evidence exists for even larger crustaceans, based on recovered exoskeletons/exuviae.
1896
They are caught in nets commercially and some will be caught in crab pots at sea, some are caught with a fishing pole.
Alaskan king crab can be caught in Auletian Islands, islands in Alaska region. Another places where the crabs can be caught are in Russia and also international waters.
The strongest crab is by "pinchable area" is the Atlantic Blue crab with a maximum pounds per pinchable area of 500lbs.
The Alaskan crab is much larger than the coconut crab. The coconut crab weighs up to 9 lbs. and the Alaskan crab weighs up to 18 pounds.
The horseshoe crab is about 2 feet long and weighs 10 pounds.
Tjhey are not surviving because fishermen arent being aware that they caught a blue crab and they get fined.
well it depends what kind of crab.