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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).
More on author: Gmelin.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien demersaal; diepte 2 - 180 m. Temperate; ? - 16°C (Ref. 27549); 58°N - 36°N, 76°W - 50°W
Northwest Atlantic: Labrador in Canada to Chesapeake Bay in USA.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 68.0 cm TL mannelijk / geslacht onbekend; (Ref. 49746); max. gepubliceerd gewicht: 3.2 kg (Ref. 7251)
Inhabit rocky or hard bottom and is a voracious eater. Food includes crustaceans, mollusks, sea urchins, fishes such as herring, sand lance and silver hake, and any bottom invertebrates that are available. When taken out of the water the belly becomes inflated so that when returned to the water they are unable to submerge. Adults attach their eggs near the base of a sponge to use as a spawning bed (Ref. 34819, 41075).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Adults attach their eggs near the base of a sponge to use as a spawning bed (Ref. 34819, 41075).
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Aas: occasionally
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 0.5 - 10.2, mean 3.8 °C (based on 130 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.6289 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00197 - 0.01276), b=3.15 (2.93 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.5 ±0.5 se; based on diet studies.
Weerstandsvermogen (Ref.
120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
Nutrients (Ref.
124155): Calcium = 32.1 [17.3, 64.8] mg/100g; Iron = 0.341 [0.174, 0.650] mg/100g; Protein = 17.2 [15.9, 18.5] %; Omega3 = 0.575 [0.254, 1.525] g/100g; Selenium = 17.2 [8.4, 40.8] μg/100g; VitaminA = 24.2 [7.4, 79.7] μg/100g; Zinc = 0.423 [0.300, 0.618] mg/100g (wet weight);
