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Perciformes/Cottoidei (Sculpins) >
Agonidae (Poachers) > Hemitripterinae
Etymology: Hemitripterus: Greek, hemi = half + Greek, tres, tria = three + Greek, pteron = wing, fin (Ref. 45335); bolini: Named after R.L. Bolin, U.S. ichthyologist (Ref.6885)..
More on author: Myers.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bottenlevande; djupintervall 25 - 925 m (Ref. 6793), usually 200 - 300 m (Ref. 57943). Temperate
North Pacific: Bering Sea to the Aleutian chain and Eureka, California, USA.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 73.0 cm TL hane/ej könsbestämd; (Ref. 48798); rapporterad maxålder: 23 år (Ref. 122394)
Taggstrålar i ryggfenan (totalt): 13 - 14; Mjukstrålar i ryggfenan (totalt): 11-12; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 13. Caudal fin rounded (Ref. 6885). Color mottled gray or brown above, paler below; four or five vague darker saddles across back; two tan stripes across head; red below anterior part of spinous dorsal; mottled red brown on membranes of spinous dorsal fin, lighter between fifth and eighth spines; chestnut brown on rayed dorsal with pale gray marbling; on pectorals alternating bands of yellow brown, light gray, and dark brown; light gray with fine black speckling and orange patches on anal fin; on caudal fin dark reddish brown with fine vertical stripes of gray brown (Ref. 6885).
Occurs offshore (Ref. 2850).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | 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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Sportfisk: ja
Ytterligare information
referenserVattenbrukVattenbruksprofilAvelslinjerGenetikElectrophoresesÄrftlighetSjukdomarBehandlingNutrientsMass conversion
MedarbetareBilderStamps, Coins Misc.LjudCiguateraHastighetSimsättGälytaOtolithsHjärnstorlekSyn
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Estimates based on models
Preferred temperature (Ref.
123201): 0.7 - 5.5, mean 1.6 °C (based on 106 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6289 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00533 - 0.02257), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.5 ±0.8 se; based on diet studies.
Generation time: 8.4 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
