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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
Ecologia
marino batipelagico; distribuzione batimetrica 2213 - 3658 m (Ref. 39669). Deep-water; 45°N - 22°N, 140°W - 109°W
Eastern Pacific: throughout the California Current region, seaward of the continental shelf (Ref. 35839).
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.6 cm SL maschio/sesso non determinato; (Ref. 39669)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 11 - 13; Spine anali: 0; Raggi anali molli: 13 - 15; Vertebre: 38 - 39. Branchiostegal rays: 12 (Ref. 35839).
Oviparous, with planktonic eggs and larvae (Ref. 35839).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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)
Threat to humans
Harmless
Human uses
Pesca:
Strumenti
Special reports
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Fonti Internet
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): PD
50 = 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).
Trophic level (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).