Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; brak water demersaal; diepte 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.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - 3.4 cm
Max length : 6.4 cm SL mannelijk / geslacht onbekend; (Ref. 27436); common length : 4.2 cm TL mannelijk / geslacht onbekend; (Ref. 12193); max. gerapporteerde leeftijd: 3.00 Jaren (Ref. 72494)
Dorsale stekels (totaal): 4 - 5; Dorsale zachte stralen (totaal): 15-17; Anale stekels 0; Anale zachte stralen: 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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Aquarium: Publieke aquaria
Meer informatie
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Estimates based on models
Preferred temperature (Ref.
123201): 9.4 - 18.5, mean 10.8 °C (based on 189 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.1 ±0.42 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (tm=1; tmax=2.5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).