Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina; brackvatten bottenlevande; djupintervall 0 - 2 m (Ref. 96339). Subtropical; 55°N - 22°N, 136°W - 111°W
Eastern Pacific: Rivers Inlet, British Columbia, Canada to Baja California, Mexico.
Size / Vikt / Age
Maturity: Lm ? range ? - 3.4 cm
Max length : 6.4 cm SL hane/ej könsbestämd; (Ref. 27436); common length : 4.2 cm TL hane/ej könsbestämd; (Ref. 12193); rapporterad maxålder: 3.00 år (Ref. 72494)
Taggstrålar i ryggfenan (totalt): 4 - 5; Mjukstrålar i ryggfenan (totalt): 15-17; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 14 - 17. Caudal rounded.
Inhabits sand or mud bottom. Retreats into shrimp burrows when threatened and at low tide (Ref. 6885). Commonly in estuaries, lagoons and tidal sloughs. Reported to occur in freshwater. Adults feeds on diatoms, green algae, tintinnids, eggs and young of their hosts (Ref. 6885). Positions large food particles near crabs to be torn to smaller pieces (Ref. 6885). Preyed upon by Sebastes, staghorn sculpin, whitespot greenling, and terns (Ref. 6885). Unlike other gobies, it does not build a nest or care for its young (Ref. 2850).
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
Akvarium: Offentliga akvarier
Ytterligare information
referenserVattenbrukVattenbruksprofilAvelslinjerGenetikElectrophoresesÄrftlighetSjukdomarBehandlingNutrientsMass conversion
Verktyg
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Estimates based on models
Preferred temperature (Ref.
123201): 9.4 - 18.5, mean 10.8 °C (based on 189 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.42 se; based on food items.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (tm=1; tmax=2.5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
