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); varii: In honor of Richard P. Vari (1949-2016), National Museum of Natural History, Smithsonian Institution (Washington, D.C., USA), for his “outstanding” contributions to Neotropical ichthyology. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 195 - 666 m (Ref. 114945). Tropical
Southwestern Atlantic: Brazil.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 101.5, range 95 - 108 cm
Max length : 124 cm TL オス/雌雄の選別がない; (Ref. 114945); 132.0 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is distinguished from all western Atlantic congeners (except S. david) by the following characters: a higher number of vertebral centra, 138-150 (vs. 132-136 in argentina; 128-136 in guggenheim; 127-136 in occulta; 130-135 in dumeril; 121 in Squatina sp. NW1); differs from all southwestern Atlantic species and S. david in their dorsal coloration, with very few (<20) or no white circular spots (vs. dorsal surface of the skin having hundreds of white spots in argentina, occulta, david, guggenheim) (Ref. 117896).
Occurs along continental slope (Ref. 114945).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Vaz, D.F.B. and M.R. De Carvalho, 2018. New species of Squatina (Squatiniformes: Squatinidae) from Brazil, with comments on the taxonomy of Angel sharks from the Central and Northwestern Atlantic. Copeia 106(1):144-160. (Ref. 117896)
Human uses
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
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 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).
