They are present in elegant colours of red or orange at the back and white in the bottom. This should help in recalling related terms as used in this article at a later stage for you. Male crabs will have bright blue claws like the first picture below. Though they both look alike in various features, there are many differences between the two. Female red king crabs reproduce once … They entice fishers and seafood consumers with their snow-white (edged by red), flavorful meat. The life span of a Bairdi Crab is around 10 years. The female Bairdi Crabs incubate for 12 months before hatching. This species of crab was commonly caught by trappers in the 1980s, but trapping has decreased since then. It is a species of snow crab found in the Bering Sea. Females usually lay their eggs in very deep areas of the ocean, such as in deposits of phytodetritus.  Another commercially important species, introduced deliberately to the same region, the red king crab, already has established itself in Barents Sea. The two prominent crabs that people consume is Bairdi Crab and Opilio Crab. Females molt to sexual maturity and mate in the softshell condition while grasped by the male. Seven species are in the genus Chionoecetes, all of which bear the name "snow crab". By law, only male crabs are retained, leaving the lucky females to remain in the Bering Sea and provide more tasty crab for all of us! , Snow crabs are found in the ocean's shelf and upper slope, on sandy and muddy bottoms. All in all, the best ways to distinguish male from female crabs are: 1.For fiddler crabs, look for the presence of one abnormally larger claw than the other one in males as opposed to the smaller and more equally sized claws among female fiddler crabs. The width of the carapace of a fully grown male crab is around 160 mm. Usually, the male crabs are almost twice the size of the female crabs. , Snow crabs are native to the Northwest Atlantic and the North Pacific. Also known as the Opie, the Opilio Crab is found in Japan to Greenland, and even as far south down in Maine. Further, the male opilio crabs are twice the size of the female ones. Can anyone explain why is Opilio Crab wanted and Bairdi Crab unwanted? There are many varieties of crabs found in this world. However, it is also observed that a Bairdi Crab is slightly bigger than the other Chionoecetes varieties. The North American snow crab fishery targets three species: Chionoecetes opilio, C. bairdi and C. tanneri. This is the site where we share everything we've learned. Male crabs are typically bigger and meatier than females, who stop growing after they reach maturity. , Off the coast of Newfoundland, two amphipod species – Ischyrocerus commensalis and Gammaropsis inaequistylis – have been found to live on the carapace of the snow crab. Though the crab is smaller in size, its 4 pairs of legs make it look bigger. Alaska is exclusively a male only crab fishery with a minimum 6.5” carapace measurement. The lifespan of the Opilio crabs ranges between 5 to 6 years. Males can grow up to 16.5 cm (6.5 in) in carapace width, while females can grow up to 9.5 cm (3.7 in). Moreover, the female opilio carry around One and a half Lakh eggs and they tend to lay them deep under the ocean. Movements. Male Alaska snow crab can reach 6 inches in shell width but females seldom grow larger than 3 inches. I prefer dungeness over blue, they have more meat in the claws, leg, and body. More simply, the bottom of a female crab … Bairdi Crab is usually larger when compared to the Opilio Crab. C. opilio is also know as queen crab. Buy Crabs Online. Females can carry up to nearly 100,000 eggs, depending on their size. The lifespan of the Opilio crabs ranges between 5 to 6 years. The mating process in snow crabs is very competitive. Adult females are gregarious and congregate at depths of 60–120 m (200–390 ft).  In Atlantic waters, most snow crabs are found at depths of 70–280 m (230–920 ft). King crab meat is mild in flavor with a nice sweetness and their legs are things made of legend. The EU is of the view that the crab can be freely caught by EU fishers in the international waters in the Barents Sea. Snow crabs have a horizontal rostrum at the front of the carapace; the rostrum is basically just an extension of the hard, shell covering of the carapace and it boasts two flat horns separated by a gap. It hatches during the spring. In both male and female crabs, growth stops after the … Red king crabs can grow to be very large, up to 24 pounds with a leg span of 5 feet. When they hatch, they are in the zoeal stage, meaning that they are developing into larvae that can swim on their own. The capturing method of these two crabs also differ. The Opilio Crabs are caught by the method called Trawling, unlike the Bairdi Crabs. In the Northwest Atlantic, they are found in the areas near Greenland, Newfoundland, in the Gulf of St. Lawrence, and on the Scotian Shelf. We write on the topics: Food, Technology, Business, Pets, Travel, Finance, and Science”. There is an obvious difference between 1.8 kilograms and 0.5 Kilograms of Opilios. It is also called as the Tanner crab. There are two ways to identify your crab as being either male or female including claw color and apron shape. It is illegal to retain a juvenile or female Crab in Alaska. The difference between Bairdi and Opilio Crab is the size. A few categories do not exist in certain parts too. ALASKAN CRAB FISHING 101 • DEADLIEST CATCH boats follows 2 crab seasons: red king crab and opilio crab. Bairdi Crabs have short tails. Bairdi Crab has short tails while Opilio has longer ones. (some getting as large as 20lbs. But that’s not the whole story. 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