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Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Zaproridae (Prowfish)
Etymology: silenus: Named after Silenus, a drunkard demigod who fell in a marsh on a revel and became covered with slime (Ref. 6885).
Eponymy: Silenus, in Greek mythology, was a companion and tutor to the wine-god Dionysus. He was usually drunk, and the binomial may have been inspired by the fact that the holotype was preserved in alcohol. (Ref. 128868), visit book page.
More on author: Jordan.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall 0 - 675 m (Ref. 50550), usually 0 - 500 m (Ref. 28981). Boreal; 0°C - 4°C (Ref. 56462); 66°N - 34°N
North Pacific: Hokkaido, Japan and western Kamchatka, Russia to Navarin Canyon in the Bering Sea, Attu Island in the Aleutian chain and San Miguel Island, California, USA.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 57.0 range ? - ? cm
Max length : 88.0 cm TL hane/ej könsbestämd; (Ref. 2850); common length : 42.9 cm TL hane/ej könsbestämd; (Ref. 56462); publicerad maxvikt: 7.0 kg (Ref. 56462); rapporterad maxålder: 9 år (Ref. 56462)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 54 - 57; Mjukstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 29 - 30. Caudal rounded.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Adults occur near bottom (Ref. 2850). Young to 7.2 cm are pelagic or bathypelagic, usually associated with jellyfish (Ref. 6885). Juveniles take shelter under the medusae and are often mistaken for medusafish Icichthys lockingtoni (Ref. 50276).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: husbehovsfiske
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 1.4 - 8.9, mean 4.7 °C (based on 1470 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00680 - 0.04443), b=2.97 (2.75 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±0.1 se; based on diet studies.
Generation time: 6.1 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (tm= 5.1; K= 0.18; tmax=9;).
Sårbarhet i fisket (Ref.
59153): Moderate to high vulnerability (54 of 100).
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Näringsämnen (Ref.
124155): Calcium = 17.6 [9.1, 33.0] mg/100g; Iron = 0.374 [0.139, 0.762] mg/100g; Protein = 15.8 [12.9, 19.4] %; Omega3 = 0.282 [0.150, 0.532] g/100g; Selenium = 22 [9, 54] μg/100g; VitaminA = 4.75 [0.88, 24.05] μg/100g; Zinc = 0.289 [0.193, 0.435] mg/100g (wet weight); based on
nutrient studies.
