Alaska’s cold, nutrient-rich waters are home to some of the most prized crab species in the world. This list covers the key Alaska crab species, highlighting their distinctive features, sizes, and why they matter to seafood lovers, commercial fishers, and curious nature enthusiasts alike. Whether you’re planning a culinary adventure or want to learn more about these fascinating crustaceans, this guide will provide detailed insights into each species.
King Crab (Paralithodes camtschaticus)
The Alaska King Crab is arguably the most famous and valuable crab species harvested in Alaska. Known for its massive size, the Red King Crab can reach a leg span of up to 6 feet and weigh as much as 24 pounds. Its sweet, firm meat is highly sought after in global markets, making it a commercial cornerstone for Alaska’s fishing industry. The species is notable for its bright red shell and long legs, which offer large amounts of meat.
Snow Crab (Chionoecetes opilio)
Snow crabs are smaller than king crabs but still impressive, with a leg span typically reaching about 3 feet and weighing up to 6 pounds. They have a spiny, orange-brown shell and are known for their delicate, sweet flavor and flaky white meat. Snow crabs are a staple in Alaska’s crab fisheries and are favored for their versatility in cooking, from steaming to crab legs served cold.
Tanner Crab (Chionoecetes bairdi)
Tanner crabs, also called bairdi crabs, are closely related to snow crabs but generally larger and with a slightly rougher shell that can be reddish or brown. They often reach weights of 2 to 5 pounds and have a leg span of about 2 to 3 feet. Tanner crabs are prized for their sweet meat, especially in the legs and claws, and are a popular target in both commercial and recreational fisheries in Alaska.
Blue King Crab (Paralithodes platypus)
Blue King Crabs are less common than their red counterparts but are notable for their striking bluish shell coloration. They tend to be smaller than the Red King Crab, with a leg span up to 4 feet and weighing around 15 pounds. Blue King Crabs inhabit deeper waters and colder environments, making them more challenging to harvest. Their meat is dense and flavorful, though the fishery is more limited due to conservation concerns.
Hairy Crab (Erimacrus isenbeckii)
The Hairy Crab, also known as the Horsehair Crab, is smaller and covered in fine bristles, giving it a fuzzy appearance. It typically weighs between 1 and 3 pounds with a carapace width of about 6 inches. This crab is less well-known commercially but is prized in parts of Asia for its rich, sweet meat and roe. In Alaska, it’s a minor species but notable for its unique texture and flavor.
Spot Prawn Crab (Pandalus platyceros) – Not a True Crab
While technically a shrimp, the spot prawn is often associated with Alaska’s crustaceans and is sometimes confused with smaller crabs due to its size and robust claws. Spot prawns can reach lengths of up to 9 inches and are prized for their sweet, tender meat. They share habitat with many crab species and are a popular catch alongside crab fisheries.
Golden King Crab (Lithodes aequispinus)
The Golden King Crab is a rarer relative of the Red and Blue King Crabs, distinguished by its golden-brown shell. It is generally smaller, with a leg span around 3 feet and weight up to 10 pounds. This species inhabits deep waters and is less commercially exploited, but it is gaining attention for its firm, sweet meat and potential for sustainable fishery development.
Stone Crab (Lithodes couesi)
Stone Crabs are smaller, with a carapace width around 4 inches and a reddish-brown color that helps them blend into rocky substrates. They are not a major commercial species in Alaska but are interesting ecologically for their armored shells and scavenging habits. Although they don’t reach the sizes of king or snow crabs, stone crabs contribute to the biodiversity of Alaska’s crab populations.
Deep-Sea Red Crab (Chaceon quinquedens)
Found in the deeper waters off Alaska, the Deep-Sea Red Crab is a large, slow-growing species with a bright red shell and strong claws. They can reach weights up to 4 pounds and have a carapace width of about 7 inches. These crabs are harvested in smaller quantities but valued for their dense, sweet meat, often used in gourmet dishes.
Bering Sea Spider Crab (Macroregonia macrochira)
The Bering Sea Spider Crab is known for its long, spindly legs and relatively small body, with a carapace width around 5 inches but leg spans that can reach 2 feet. This species is less targeted commercially but is part of Alaska’s diverse crab ecosystem. Its meat is not as abundant as king or snow crabs but is still edible and enjoyed by some local communities.
How to Choose
When selecting an Alaska crab species, consider what matters most: size, flavor, availability, and price. King crabs offer the largest meat yield and are considered premium, but they come at a higher cost and limited seasons. Snow and Tanner crabs provide sweet, flaky meat at a more affordable price point and are often more abundant. For unique culinary experiences, Blue King and Golden King crabs offer distinct flavors but may be harder to find. Sustainability and fishery regulations also play a role; always check current harvest rules to choose responsibly. Finally, freshness and source are critical—Alaska-caught crabs are prized for their quality and safety compared to imported options.
Frequently Asked Questions
What is the largest crab species in Alaska?
The Red King Crab is the largest, with leg spans up to 6 feet and weights reaching 24 pounds.
Are all Alaska crabs safe to eat?
Yes, but always ensure crabs are properly cooked and sourced from regulated fisheries to avoid contamination.
How do snow crabs differ from Tanner crabs?
Snow crabs are generally smaller with smoother shells, while Tanner crabs are larger with rougher shells and sometimes darker coloration.
Why are Blue King Crabs less common?
They inhabit deeper, colder waters and have more restrictive fishery quotas to protect their populations.
Can you keep crabs alive after catching?
Yes, crabs are often kept alive on ice or in tanks to maintain freshness until cooking.
What is the best way to cook Alaska crab?
Steaming or boiling are most common to preserve natural sweetness; some prefer grilling or baking with butter and seasoning.
Final Thoughts
Alaska’s crab species represent a remarkable mix of size, flavor, and ecological importance. From the iconic Red King Crab to the lesser-known Hairy and Spider crabs, each species offers unique qualities that appeal to fishermen, chefs, and seafood lovers. Understanding their sizes, habitats, and culinary attributes helps you appreciate the diversity and value of Alaska’s crab harvest. Whether you’re enjoying a crab feast or learning about marine life, these crabs are a true treasure of the North Pacific.
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