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Ovalentaria/misc (Various families in series Ovalentaria) >
Embiotocidae (Surfperches)
Etymology: Amphistichus: Greek, amphi = on both sides + Greek, stix, -ichos = row (Ref. 45335).
More on author: Agassiz.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser demersal; tiefenbereich 0 - 73 m (Ref. 96339). Subtropical; 38°N - 32°N, 123°W - 117°W
Eastern Pacific: Bodega Bay in northern California, USA to northern central Baja California, Mexico.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 43.0 cm TL Männchen/unbestimmt; (Ref. 2850); common length : 30.0 cm TL Männchen/unbestimmt; (Ref. 2850); max. veröff. Gewicht: 2.0 kg (Ref. 2850); max. veröff. Alter: 9 Jahre (Ref. 56049)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Mostly found in surf of sand beaches, but reported from trawl catches at depths up to 73 m. Also occur near rocks, pilings and other sources of cover and food. Usually form small groups. Also caught from piers and skiffs. Feed preferably on sand crabs but also eats clams and other invertebrates. Viviparous, female carries the developing young (Ref. 205). Minimum depth range based on ecology (Ref. 96339).
Viviparous, female carries the developing young (Ref. 205).
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 Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell; Sportfisch: ja
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 9.7 - 15.6, mean 12.9 °C (based on 12 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.00552 - 0.03150), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.5 ±0.0 se; based on diet studies.
Generation time: 7.5 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.15-0.18; tm=2; tmax=9; Fec=113).
Anfälligkeit der Fischerei (Ref.
59153): Moderate to high vulnerability (53 of 100).
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