Elasmobranchii (Haie und Rochen) (sharks and rays) >
Squatiniformes (Angel sharks) >
Squatinidae (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned) (See ETYFish); californica: -ica (L.), belonging to: California (USA), referring to type locality in San Francisco Bay (See ETYFish).
More on author: Ayres.
Taxonomic Remarks
It is sympatric with S. armata.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser demersal; tiefenbereich 3 - 205 m (Ref. 9253), usually 3 - 46 m (Ref. 54903). Subtropical; 56°N - 4°S, 134°W - 77°W
Eastern Pacific: Canada to Gulf of California, south to northern Peru.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 97.0, range 86 - 108 cm
Max length : 152 cm TL Männchen/unbestimmt; (Ref. 247); max. veröff. Alter: 35 Jahre (Ref. 6147)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 0; Afterflossenstacheln: 0.
Body shape (shape guide): other.
Found on the continental shelf and littoral areas (Ref. 247).A sluggish and inactive species that buries itself in sand or mud (Ref. 247). Also found around rocks, heads of submarine canyons, and sometimes near kelp forests (Ref. 247). Feeds on bottom and epibenthic fishes, including croakers, California halibut, and squid (Ref. 247). Ovoviviparous (Ref. 50449). Can whip up its head and snap very quickly when touched, provoked, harassed, or speared, and can inflict painful lacerations (Ref. 247).
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Nutzung durch Menschen
Fischereien: kommerziell
Tools
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 12.5 - 25.9, mean 21 °C (based on 60 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00287 - 0.01523), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 4.1 ±0.4 se; based on diet studies.
Widerstandsfähigkeit (Ref.
120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (K=0.15-0.16; tm=8-13; tmax=35; Fec=6).
Anfälligkeit der Fischerei (Ref.
59153): High to very high vulnerability (67 of 100).
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Nährstoffe (Ref.
124155): Calcium = 17.5 [3.6, 86.6] mg/100g; Iron = 0.795 [0.206, 2.275] mg/100g; Protein = 19.9 [17.8, 21.8] %; Omega3 = 0.363 [0.162, 0.801] g/100g; Selenium = 26.5 [7.5, 76.0] μg/100g; VitaminA = 9.99 [3.53, 27.74] μg/100g; Zinc = 0.421 [0.203, 0.760] mg/100g (wet weight);
