The Bairdi crab, also known as tanner crab or Chionoecetes Bairdi is a type of crab that is found in the Bering Sea. They are very similar to Opilio crabs which are known as Chionoecetes Opilio and it can be extremely difficult to differentiate between the two.
Bairdi also known as Tanner Crab is the largest of the Snow Crab, averaging 3-5 lbs and measuring 3 feet from tip to tip. The snow crab fishery was developed in Alaska in the mid-1960s, when crabbers started fishing bairdi, which averages 3-5 pounds, compared to 1 1/2 -2 1/2 pounds for C. opilio. In less than five years, bairdi catches soared to almost 35,000 tons, temporarily exceeding landings of king crab. Bairdi Snow Crab. There are two species of snow crab, chionoecetes bairdi and chionoecetes opilio. The Bairdi is the larger of the two species reaching sizes of 3 to 5 pounds while the opilio only reaches 1.5 to 2.5 pounds. The Bairdi Snow Crab is also marketed under the trade name “Tanner Crab.. The meat yield from a whole opilio is just 17%, compared to about 20% for Bairdi. The Yield from cooked sections to cooked meat for Bairdi averages about 34%. Bairdi Crab (Chionoecetes bairdi). General Description: Bairdi crabs (Chionoecetes bairdi) are brachyuran (meaning short-tailed) or true crab and constitute some of the most highly specialized of all crustaceans. The body is composed mainly of a chitinous shell or carapace with a small abdominal flap. They have five pairs of legs with the first pair equipped with pincers. Males of commercial size usually range from 7 to 11 years of age and vary in weight from 1 to 2 pounds for opilio and 2 to 4 pounds for bairdi crabs. Bairdi crab are often marketed under the name snow crab.. Tanner crabs (Chionoecetes bairdi and C. opilio) are brachyuran (meaning short-tailed) or true crab and constitute some of the most highly specialized of all crustaceans. The body is composed mainly of a chitinous shell or carapace with a small abdominal flap.  Chionoecetes opilio. The Bairdi crab, also known as tanner crab or Chionoecetes Bairdi is a type of crab that is found in the Bering Sea. They are very similar to Opilio crabs which are known as Chionoecetes Opilio and it can be extremely difficult to differentiate between the two. The flavour of the crab is another area where the two differ. Bairdi crab is characterized by a sweet flavour which is also succulent. However, this does not apply to the Opilio crab. Moreover, in some regions the Bairdi crab is known as the King crab and its Opilio counterpart as Queen Crab. Chionoecetes bairdi is a species of crab known alternatively as bairdi crab and tanner crab. C. bairdi is closely related to Chionoecetes opilio, and it can be difficult to distinguish C. opilio from C. bairdi. Both species are found in the Bering Sea and are sold commercially under the name  Snow crab . Tanner crabs are considered a short-tailed or true crab. They are decapods with pincer claws on their frontmost pair of legs. They can live over a decade with most adults reaching 1 to 4 pounds (0.45 to 1.81 kg) by the time they reach adulthood, usually after about five years. Quick Overview. Bairdi Crab is the largest of the four species of Snow Crab. It is also the most popular and most sought after. It's tender snow white meat is an excellent source of high-quality protein, and is low in fat and calories. By whatever name it’s called, Bairdi or Queen Crab, this diva is delicious! 
https://www.premierharvest.net/bairdi-snow-crab/ http://www.fortunefishco.net/bairdi-snow-crab http://alaskaberingseacrabbers.org/crab_species_bairdi.php http://www.adfg.alaska.gov/index.cfm?adfg=tannercrab.main http://www.differencebetween.net/object/comparisons-of-food-items/difference-between-bairdi-crab-and-opilio-crab/ https://en.wikipedia.org/wiki/Chionoecetes_bairdi http://www.alaskanharvestseafood.com/alaskan-crab/bairdi-crab-6-lbs-sections.html
what are bairdi crab