Common names from other countries
分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (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.
Issue
It is sympatric with S. armata.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 3 - 205 m (Ref. 9253), usually 3 - 46 m (Ref. 54903). Subtropical; 52°N - 7°N, 130°W - 77°W
Eastern Pacific: Canada to Gulf of California, south to Panama.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 97.0, range 86 - 108 cm
Max length : 152 cm TL オス/雌雄の選別がない; (Ref. 247); 最大記録サイズ: 35 年 (Ref. 6147)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 肛門の骨: 0.
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).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
CITES (Ref. 128078)
Not Evaluated
Human uses
水産業: 商業
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
115969): 12.5 - 25.9, mean 21 (based on 60 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00293 - 0.01558), b=3.07 (2.88 - 3.26), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 4.1 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (K=0.15-0.16; tm=8-13; tmax=35; Fec=6).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (67 of 100).
