You can eat the crab, which is no bigger than an adult's thumb, and can be found in groups on the mudflats, making it easy to get. When you catch it, you can marinate it and make crab paste, which can be eaten with rice.

The fiddler crab inhabits beaches with salt and brackish water, survives in muddy areas, and lives in burrows that are often specialized, but are often changed every few days. The depth of the burrow is related to the water table, and the burrow can be up to 30 centimeters deep, with the bottom of the burrow usually reaching damp mud.

Expanded Information

Feeding Methods

Feeding the crabs can be done in fish tanks or larger containers such as glass jars or plastic jars, with the bottoms filled with sand and built into a slope. It is recommended that the depth of the sand be around 10 centimeters because of the crab's habit of digging holes.

Mix 0.4-0.5% salt water and submerge it to 1/3-1/2 of the slope, and install a small filter if possible. In summer, you should change the water 1/3 every week, and in winter, you can change the water a little longer.

Fishing crabs can be fed with crushed fish, clams or shrimp meat, etc., the food should be placed on the sand surface of the water, once a day to feed on the line, the food should be cleaned up in a timely manner, so as not to contaminate the water quality.

Distribution range

Widely distributed in the intertidal zone of the global tropics and subtropics, is a warm-water crab with clustering. In China, there are about 10 species of fiddler crabs in the genus, and the common species are: arc edge fiddler crabs, concave finger fiddler crabs, white fiddler crabs and ringed fiddler crabs, etc. They are distributed in the coastal provinces and Hainan, Taiwan and other provinces.

There are a lot of them in warm and tropical bays. Common species in North America, such as the aggressive fiddler crab, messenger fiddler crab and red knob fiddler crab, are found in the North Atlantic coast from New England to the Gulf Coast states.

Breeding

Before mating, males can wave their large chelae in a variety of showy performances to attract females, and in the intertidal zone when the activities seem to be beckoning the tide, so the name beckons the tide. The females then follow the males into the cave for mating. At night, males often use large chelae to rhythmically tap the ground to attract females.

Baidu Encyclopedia - Fiddler Crab