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Photo of a Jonah Crab

Species profile

Jonah Crab

Cancer borealis

Crabs/lobsters/shrimp3.5K iNat observations

At a glance

Jonah Crab (Cancer borealis) is a crustacean regulated in 4 of 66 jurisdictions tracked by CatchRules across the U.S. and Canada.

Bag limits are uniform at 50 per angler across the 3 regulating jurisdictions.

Across 3 jurisdictions with stated minimum sizes, the average minimum is 4.8 in.

Confirmed by 3,279 research-grade iNaturalist observations, with Maine, Massachusetts, and Nova Scotia the top jurisdictions by observation count.

Notable details

  • Its carapace can reach up to 6 inches wide, making it a substantial seafood catch.
  • Found from Nova Scotia to Florida, it inhabits rocky and sandy bottoms at considerable depths.
  • The claws hold the sweetest meat and are often sold separately as Jonah crab claws.
  • Jonah crab meat is frequently compared to Dungeness crab for its sweet, firm texture.
  • It can be found at depths exceeding 500 meters along the continental shelf.

Background

The Jonah crab (Cancer borealis) is a marine brachyuran crab that inhabits waters along the east coast of North America from Newfoundland to Florida. Jonah crabs possess a rounded, rough-edged carapace with small light spots, and robust claws with dark brown-black tips. The maximum reported carapace width for males is 222 mm, while females rarely exceed 150 mm.

Background excerpt adapted from Wikipedia's Jonah Crab article (CC BY-SA). Visit Wikipedia for the full entry.

Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.