Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Stomiiformes (Lightfishes and dragonfishes) > Phosichthyidae (Lightfishes)
Etymology: Ichthyococcus: Greek, ichthys = fish + Greek, kokkos = grain, berry (Ref. 45335); irregularis: Named for the irregular pattern of th eventral photophores before the pectoral fin (Ref. 39669).

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

marina batypelagisk; djupintervall 2213 - 3658 m (Ref. 39669). Deep-water; 45°N - 22°N, 140°W - 109°W

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Eastern Pacific: throughout the California Current region, seaward of the continental shelf (Ref. 35839).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.6 cm SL hane/ej könsbestämd; (Ref. 39669)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 11 - 13; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 13 - 15; Ryggkotor: 38 - 39. Branchiostegal rays: 12 (Ref. 35839).

Oviparous, with planktonic eggs and larvae (Ref. 35839).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Oviparous (Ref. 35839).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Watson, W., 1996. Phosichthyidae: lightfishes. p. 284-293. In H.G. Moser (ed.) The early stages of fishes in the California Current Region. California Cooperative Oceanic Fisheries Investigations (CalCOFI) Atlas No. 33. Allen Press, Inc., Lawrence, Kansas. 1505 p. (Ref. 35839)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 16 July 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri:

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Estimates based on models

Preferred temperature (Ref. 123201): 1.7 - 1.9, mean 1.8 °C (based on 38 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00400 - 0.02282), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Price category (Ref. 80766): Unknown.

Ichthyococcus irregularis Rechnitzer & Böhlke, 1958