California headlightfish (Diaphus theta)

Scientific name: Diaphus theta Eigenmann & Eigenmann, 1890

California headlightfish (Diaphus theta)

The California headlightfish (Diaphus theta) is a marine fish of the family Myctophidae. Native range: Eastern Pacific, common in California Current region to 20?S, including Hawaii. Northwest Pacific: throughout subarctic-transitional waters to northern Japan.

Biology

Dorsal spines (total): 0; Dorsal soft rays (total): 12-14; Anal spines: 0; Anal soft rays: 12 - 14; Vertebrae: 34 - 36. Adipose small, narrow based, slender. Brown to black on dorsal surface, lighter ventrally; fins pale. Branchiostegal rays: 9.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Diaphus theta
Family
Myctophidae (Lanternfishes)
Order
Myctophiformes (Lanternfishes)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
11.4
Depth range
0–3400 m (0–11155 ft)
Environment
Marine; bathypelagic; depth range 0 - 3400 m, usually 10 - 400 m
Climate
Deep-water
Distribution
Eastern Pacific: common in California Current region to 20?S, including Hawaii. Northwest Pacific: throughout subarctic-transitional waters to northern Japan.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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