Alaska’s coastal waters are home to some of the most prized crab species in the world, making them a fascinating subject for beginners interested in marine life or seafood harvesting. This list covers key crab species found in Alaska, highlighting their distinctive features and why they matter to both casual observers and those pursuing crabbing. Whether you’re planning a trip to Alaska’s shores or simply want to identify crabs you see in markets or nature documentaries, this guide offers practical, detailed insights.
Red King Crab (Paralithodes camtschaticus)
The Red King Crab is Alaska’s most iconic crab, famous for its large size and bright reddish-orange shell. Adult males can weigh up to 24 pounds and have a leg span of over 5 feet. They inhabit deep, cold waters around the Bering Sea and Gulf of Alaska and are highly sought after commercially, prized for their sweet, tender meat.
Blue King Crab (Paralithodes platypus)
Blue King Crabs are smaller than their red counterparts but still impressive, with a distinctive bluish tint on their shells. They prefer shallower, colder waters, mainly around the Pribilof Islands and Norton Sound. Their population has declined due to environmental pressures, making them less common but still valuable for identification and conservation awareness.
Golden King Crab (Lithodes aequispinus)
Golden King Crabs are recognized by their reddish-gold shells and spiny carapace. They dwell in deeper waters off the Aleutian Islands and the Alaska Peninsula. These crabs are smaller than Red Kings but have a firm, flavorful meat that is gaining popularity in seafood markets, especially for their sustainability compared to other king crabs.
Dungeness Crab (Metacarcinus magister)
Though more common along the Pacific Northwest, Dungeness Crabs also appear in Southeast Alaska. They have a broad, oval-shaped shell that ranges from dark purple to brown with a distinctive white-tipped claw. Their sweet, nutty flavor and tender meat make them a favorite among recreational crabbers and chefs alike.
Snow Crab (Chionoecetes opilio)
Snow Crabs are smaller and less colorful than king crabs but are abundant in Alaska’s Bering Sea. They have long, slender legs and a light tan to orange color. Known for their delicate, slightly sweet meat, snow crabs are the basis of a major commercial fishery, often found in crab legs sold in stores worldwide.
Tanner Crab (Chionoecetes bairdi)
Tanner Crabs resemble Snow Crabs but tend to be larger and have a rougher shell with more spines. They inhabit the continental shelf around Alaska and are important for both commercial and subsistence fisheries. Their meat is flavorful and used in a variety of seafood dishes, contributing to Alaska’s diverse crab industry.
Hairy Crab (Lopholithodes mandtii)
The Hairy Crab is notable for its thick covering of bristly setae (hair-like structures) on its legs and carapace, which helps it camouflage on rocky bottoms. Found primarily in Southeast Alaska, this species is less targeted commercially but is an interesting find for crab enthusiasts due to its unique appearance and habitat preferences.
Box Crab (Cryptolithodes spp.)
Box Crabs have a distinctive, flattened, box-like carapace that allows them to blend in with sandy or muddy sea floors. They are smaller and less well-known than king or snow crabs but contribute to Alaska’s crab biodiversity. Their unusual shape and behavior make them a rewarding species to spot for beginners learning crab identification.
Spider Crab (Hyas spp.)
Spider Crabs have long, slender legs relative to their body, giving them a spidery appearance. Species like Hyas coarctatus are found in Alaskan waters and are recognized by their spiny carapace and cryptic coloration. Though not heavily fished commercially, they play an important ecological role as scavengers on the ocean floor.
Hair Crab (Lithodes maja)
Often confused with the Hairy Crab (Lopholithodes mandtii), Lithodes maja is a northern species with a similarly spiny and hairy appearance but generally found in colder, deeper waters. Its robust claws and spiny armor help it survive in harsh environments. This crab is less common but offers insight into the diversity of Alaskan crab species.
How to Choose
When identifying crabs in Alaska, focus on key physical traits such as carapace shape, color, size, and the presence of spines or hair-like structures. Habitat and geographic location also matter, as some species prefer deeper waters or specific coastal areas. For seafood buyers or harvesters, sustainability and legal size limits are crucial factors. Understanding the commercial status and conservation concerns of each species helps ensure responsible choices.
Frequently Asked Questions
What is the easiest crab to identify in Alaska? The Red King Crab is the easiest due to its large size, bright red color, and iconic status.
Are all Alaska crabs safe to eat? Most commercially harvested crabs are safe when cooked properly, but always follow local guidelines and cooking recommendations to avoid foodborne illness.
When is crab season in Alaska? Crab seasons vary by species and region, typically running from late fall to early spring, but exact dates depend on state regulations.
Can I catch crabs recreationally in Alaska? Yes, Alaska allows recreational crab harvesting with permits and size limits, but rules differ by area and species.
How can I tell the difference between Snow and Tanner Crabs? Tanner Crabs are generally larger with a spiny, rougher shell, whereas Snow Crabs have smoother shells and are smaller.
Why are some crabs called “hairy”? They have dense bristle-like setae covering their shells and legs, which helps camouflage them and protect from predators.
Final Thoughts
Alaska’s crab species offer an intriguing mix of size, shape, and color, making identification both challenging and rewarding for beginners. By focusing on distinctive features and understanding habitat preferences, you can confidently recognize the most important crabs in Alaska’s waters. Whether for education, recreation, or culinary interest, learning about these crabs enriches your appreciation of Alaska’s rich marine environment and seafood heritage.
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