Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water demersaal. Temperate; 43°N - 35°N
North America: Sacramento-San Joaquin, Russian, Pajaro-Salinas and smaller coastal drainages in California, USA.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 11.0 cm TL mannelijk / geslacht onbekend; (Ref. 5723); common length : 8.3 cm TL mannelijk / geslacht onbekend; (Ref. 12193); max. gerapporteerde leeftijd: 5 Jaren (Ref. 72464)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 7 - 10. Mouth slightly subterminal; body deep, compressed, tapering to narrow caudal peduncle; dorsal-fin origin behind pelvic-fin origin; caudal fin large; scales on lateral line 47-63; dorsal fin with 7-10 rays; pharyngeal teeth 0,5-4,0; dusky gray to steel blue above; dark stripe along side; silver white below; and breeding individuals with red orange-chin, gill cover, and anal and paired-fin bases (Ref. 86798).
Body shape (shape guide): fusiform / normal.
Inhabits rocky pools of headwaters, creeks and small to medium rivers (Ref. 86798).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00439 - 0.02869), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.4 ±0.2 se; based on size and trophs of closest relatives
Generation time: 2.0 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (K=0.5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
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