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Photo of a Shortspine Thornyhead

Species profile

Shortspine Thornyhead

Sebastolobus alascanus

Bony fishIUCN: Endangered81 iNat observations

Identify Shortspine Thornyhead (Sebastolobus alascanus) from a photo — free, unlimited, no sign-up — with the CatchRules iPhone app. Plus current fishing rules across 1 jurisdiction.

At a glance

Shortspine Thornyhead (Sebastolobus alascanus) is an IUCN Endangered bony-fish species regulated in 2 of 66 jurisdictions tracked by CatchRules across the U.S. and Canada.

The strictest bag limit is 1 (Alaska); the most generous is 20 (California).

Confirmed by 10 research-grade iNaturalist observations, with Alaska, California, and British Columbia the top jurisdictions by observation count.

Notable details

  • Found at extraordinary depths, from 200 to over 1,500 meters.
  • Brilliant red coloration helps it blend into deep-sea coral and rocky substrate.
  • Long-lived, with lifespans estimated to exceed 100 years.
  • Reaches about 28 inches (70 cm) but grows extremely slowly.
  • Prized for its rich, white flesh in seafood markets from Alaska to Japan.

Background

The shortspine thornyhead (Sebastolobus alascanus) is a species of fish in the Sebastidae family. It is sometimes referred to as the "idiot fish" or "idiot cod" due to its large oversize head/eyes. It is found in Canada, Russia, and the United States. Adult S. alascanus live predominantly in the oxygen minimum zone (OMZ), and thus require specific adaptations/exaptations in order to overcome the…

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

Frequently asked questions

What is Shortspine Thornyhead?

Shortspine Thornyhead (Sebastolobus alascanus) is an IUCN Endangered bony-fish species regulated in 2 of 66 jurisdictions tracked by CatchRules across the U.S. and Canada.

What is the scientific name for Shortspine Thornyhead?

Shortspine Thornyhead is Sebastolobus alascanus.

Is Shortspine Thornyhead regulated for fishing?

Yes — Shortspine Thornyhead has fishing regulations in 1 U.S. state and/or Canadian province tracked by CatchRules. See the "Jurisdictions with rules" section above for the binding-source links.

How can I identify Shortspine Thornyhead?

Take a photo with the free CatchRules iPhone app — on-device identification recognizes Shortspine Thornyhead along with ~1,500 other species. No sign-up, unlimited use.

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