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Luminous Hake

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description Luminous Hake Overview

The luminous hake, Steindachneria argentea, is a deep-water marine fish and the only recognized species in the family Steindachneriidae. It is distinguished by a ventral bioluminescent organ beneath the head and along the underside of the body. The species inhabits the western Atlantic, including deep waters associated with the Gulf of Mexico and Caribbean region, and has been recorded at depths approaching 800 metres.

help Luminous Hake FAQ

What is unusual about the Luminous Hake?

Steindachneria argentea is the only recognized species in the fish family Steindachneriidae. It has a striated light organ on the ventral body and additional luminous structures along the sides of the head. [FishBase](https://www.fishbase.se/summary/Steindachneria-argentea)

How deep does the Luminous Hake live?

FishBase lists its usual depth range at about 400 to 500 meters. That places it in deep marine, bathydemersal habitat near the continental shelf and upper slope rather than in shallow coastal water. [FishBase](https://www.fishbase.se/summary/Steindachneria-argentea)

Where is Steindachneria argentea found?

Its range is in the western Atlantic, including the Gulf of Mexico and Caribbean Sea, extending from the waters off New England south toward Bahia, Brazil. It is a marine species associated with deep continental-margin habitats. [California Academy of Sciences](https://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?spid=5745)

Why might a deep-sea hake need a light organ?

A ventral light organ in deep-sea fishes is commonly associated with counterillumination, which can reduce the animal's silhouette when viewed from below. The Luminous Hake's specific behavior is not fully documented, but its light organ is a defining anatomical feature. [FAO](https://www.fao.org/4/t0243e/T0243E40.pdf)

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