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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Astrocottus: Greek, astra = ray + Greek, kottos = a fish (Ref. 45335); regulus: Name from Latin 'regulus' or regular, a common species collected frequently in northern Japan. It also is the name of the alpha star of the constellation Leo, which is connected with the genus name Astrocottus, meaning 'constellation sculpin'.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall 10 - 55 m (Ref. 76844). Temperate
Northwest Pacific: Japan.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 4.2 cm SL hane/ej könsbestämd; (Ref. 76844)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 9 - 11; Mjukstrålar i ryggfenan (totalt) : 13 - 15; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 13 - 14; Ryggkotor: 32 - 34. This species possess the following characters: small head, its length 31-33% SL, depth 13-17% SL; flat and narrow interorbital space, its width 5.6-7.2% HL; basal length of anal fin 30-34% SL; scales on pectoral-fin rays and ventral surface of head and trunk absent; no nuchal cirrus; some scales below lateral line have filamentous cirri; D1 IX-XI (mode X); D2 13-15 (mode 14); A 13-14 (mode 14); lateral-line scales 31-33 (mode 32); vertebrae 12 + 20-22 (mode 12 + 21)=32- 34 (mode 33) (Ref. 76844).
Body shape (shape guide): elongated; Cross section: oval.
Occurs on sandy and/or cobble bottom (Ref. 76844).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Tsuruoka, O., S. Maruyama and M. Yabe, 2008. Revision of the Cottid Genus Astrocottus Bolin (Perciformes: Cattoidei), with the description of a new species from Northern Japan. Bull. Natl. Mus. Sci. Ser. A. Suppl. 2:25-37. (Ref. 76844)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00603 (0.00290 - 0.01252), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (21 of 100). 🛈 |