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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.

Environment: milieu / climate zone / depth range / distribution range Ökologie

seewasser demersal; tiefenbereich 0 - 73 m (Ref. 96339). Subtropical; 38°N - 32°N, 123°W - 117°W

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Eastern Pacific: Bodega Bay in northern California, USA to northern central Baja California, Mexico.

Size / Gewicht / Alter

Maturity: L_m ? 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)

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).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Viviparous, female carries the developing young (Ref. 205).

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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)

Nicht untersucht

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: weniger kommerziell; Sportfisch: ja

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 9.7 - 15.6, mean 12.9 °C (based on 12 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01318 (0.00559 - 0.03107), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (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).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (53 of 100).

Preiskategorie (Ref. 80766): Unknown.

Amphistichus argenteus Agassiz, 1854