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Perciformes/Cottoidei (Sculpins) >
Agonidae (Poachers) > Hemitripterinae
Etymology: Nautichthys: Greek, nautes = sailor + Greek, ichthys = fish (Ref. 45335); oculofasciatus: Nautichthys sailor fish, in allusion to the sail-like first dorsal fin; oculofasciatus eye-banded (Ref. 4930).
More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক তলদেশ বিহারী; গভীরতার পরিসীমা ? - 110 m (Ref. 2850). Temperate; 66°N - 34°N
Eastern Pacific: St. Lawrence Island, Alaska to San Miguel Island, southern California, USA. Possibly occurring in Japan (Ref. 2850).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 2850)
পৃষ্ঠীয় কাঁটা (মোট ) : 8 - 9; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 27 - 30; পায়ূ কাঁটা : 0; পায়ূর নরম পাখনা্তুন্ড: 18 - 20. Caudal fin rounded, directed upward (Ref. 6885). Color variable, gray above with dark markings and obscure dusky bands, paler below; spinous dorsal darker; other fins except pelvic fins diagonally streaked darker; sometimes red flecks on rayed dorsal and on eyes; a very distinct black band running diagonally down and back through eye (Ref. 6885). A recognizable variant occurs in Knight Inlet, British Columbia - the first caudal fin is dominated by the II, III, I rather than the first four spines and the whole fin is frail and when removed from fluid appears more like a mast than a sail (Ref. 6885).
Occurs inshore and to 110 m depth, mostly on rocky bottoms and areas with algae (Ref. 2850). Nocturnal (Ref. 6885). May be found upside down against roofs of crevices (Ref. 6885). Swims with its dorsal fin extended in front of its head (Ref. 6885). Eggs deposited in late winter or spring (Ref. 6885).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
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
মৎস্য: বাণিজ্যিক; মৎস্যাধার / এ্যাকুয়ারিয়াম : পাবলিক এ্যাকুয়ারিয়াম
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 4.1 - 10.8, mean 7.1 °C (based on 212 cells).
Phylogenetic diversity index (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).
ট্রফিক পর্যায়ে (Ref.
69278): 4.1 ±0.68 se; based on food items.
স্থিতিস্থাপক (Ref.
120179): মাধ্যম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১.৪-৪.৪ বৎসর (tm=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
