Diaphus theta Eigenmann & Eigenmann, 1890

California headlightfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Myctophiformes \| Myctophidae
Synonyms	Myctophum protoculus, ... more
Common names	Linternilla californiana, Linternilla, Todo-hadaka, ... more

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Image of Diaphus theta (California headlightfish)

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Clemens, W.A. and G.V. Wilby. 1961. (Ref. 4925)
Other references | Biblio | Coordinator : Paxton, John | Collaborators

Size / Weight / Age

Max length : 11.4 cm TL male/unsexed; (Ref. 4925)

Environment

Bathypelagic; marine; depth range 0 - 3400 m (Ref. 50550), usually 10 - 400 m (Ref. 28981)

Climate / Range

Deep-water; 66°N - 20°S

Eastern Pacific: common in California Current region to 20°S (Ref. 31442), including Hawaii (Ref. 4925). Northwest Pacific: throughout subarctic-transitional waters to northern Japan (Ref. 31442).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

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 (Ref. 6885). Brown to black on dorsal surface, lighter ventrally; fins pale (Ref. 6885). Branchiostegal rays: 9 (Ref. 31442).

Epipelagic to mesopelagic (Ref. 31442). Feed at night or in the morning (Ref. 9199), on euphausiids, copepods, and amphipods (Ref. 11712). Oviparous, with planktonic eggs and larvae (Ref. 31442). Lipid content is 15.8 % in fresh body weight while wax ester is present in trace amounts (Ref. 9197). Minimum depth reported from Ref. 6885.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low to moderate vulnerability (27 of 100)	High

Entered by Froese, Rainer

Modified by Sampang, Arlene G.

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