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Diaphus theta Eigenmann & Eigenmann, 1890

California headlightfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Diaphus theta   AquaMaps   Data sources: GBIF OBIS
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Image of Diaphus theta (California headlightfish)
Diaphus theta
Picture by Orlov, A.

Galapagos Islands country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Grove, J.S., D.J. Long, D.R. Robertson and B.C. Victor, 2022
National Database:

Common names from other countries

Linternilla californiana, Linternilla, Todo-hadaka, ... more

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Myctophiformes (Lanternfishes) > Myctophidae (Lanternfishes) > Diaphinae
Etymology: Diaphus: Greek, dis, dia = through + Greek, physa, phyo = to beget, to have as offspring (Ref. 45335);  theta: Named after the Greek letter and refers to the body photophores which are divided horizontally by a fine line of black pigment (Ref. 6885).
  More on authors: Eigenmann & Eigenmann.

Environment: milieu / climate zone / depth range / distribution range Écologie

marin bathypélagique; profondeur 10 - 3400 m (Ref. 50550), usually 10 - 400 m (Ref. 28981).   Deep-water; 66°N - 20°S

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

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).

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 6 - ? cm
Max length : 11.4 cm TL mâle / non sexé; (Ref. 4925)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 12-14; Épines anales 0; Rayons mous anaux: 12 - 14; Vertèbres: 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).

Biologie     Glossaire (ex. epibenthic)

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. 28981.

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Oviparous (Ref. 31442).

Référence principale Upload your references | Références | Coordinateur : Paxton, John | Collaborateurs

Clemens, W.A. and G.V. Wilby, 1961. Fishes of the Pacific coast of Canada. 2nd ed. Fish. Res. Bd. Canada Bull. (68):443 p. (Ref. 4925)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 26 June 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

FAO(Publication : search) | FishSource |

Plus d'informations

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Fréquences de longueurs
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Outils

E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point | Classification Tree | Catch-MSY |

Articles particuliers

Maintenance en aquarium | Articles sur l'espèce | Rapports d'aquaculture

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Page de résumé | Coordonnées géographiques | Noms communs | Photos

Sources Internet

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes(Genre, Espèce) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(génôme, nucléotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Arbre de Vie | Wikipedia(aller à, chercher) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 4.8 - 15.3, mean 7.9 (based on 504 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00436 - 0.02294), b=3.04 (2.86 - 3.22), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.2   ±0.1 se; based on diet studies.
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (25 of 100).