Diaphus theta, California headlightfish

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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
Fotografia de Orlov, A.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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 / intervalo de profundidade / distribution range Ecologia

marinhas batipelágico; intervalo de profundidade 10 - 3400 m (Ref. 50550), usually 10 - 400 m (Ref. 28981). Deep-water; 66°N - 20°S

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Mapa dos pontos | Introduções | 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 / Tamanho / Peso / Idade

Maturidade: Lm ?, range 6 - ? cm
Max length : 11.4 cm TL macho/indeterminado; (Ref. 4925)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 12 - 14; Espinhos anais: 0; Raios anais moles: 12 - 14; Vértebras: 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).
Body shape (shape guide): fusiform / normal.

Biologia     Glossário (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 Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Oviparous (Ref. 31442).

Referência principal Upload your references | Referências | Coordenador : Paxton, John | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-1)

  Preocupação menor (LC) ; Date assessed: 26 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

FAO - Publication: search | FishSource |

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Fontes da internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OceanAdapt | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Árvore da vida | Wikipedia: ir para, procurar | Zoobank | Registo zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 4.8 - 15.3, mean 7.9 °C (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 (0.00438 - 0.02284), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.2   ±0.1 se; based on diet studies.
Generation time: 2.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (25 of 100). 🛈