分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
全頭亜鋼 (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: hydro-, combining form of hydor (Gr.), water; lagos (Gr.), hare, i.e., “water rabbit,” probably referring to three pairs of tooth plates, which tend to protrude from the mouth like a rabbit’s incisors (See ETYFish); africanus: -anus (L.), belonging to: Africa, described from deep water off the KwaZulu-Natal South Coast of South Africa (See ETYFish).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 深海魚; 深さの範囲 421 - 750 m (Ref. 3181). Deep-water
Western Indian Ocean: off Kenya, Mozambique and Natal, South Africa.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 67.0 cm TL オス/雌雄の選別がない; (Ref. 3181)
背面の脊椎 (合計) : 1; 肛門の骨: 0; 臀鰭: 0. A shortnose chimaera with the dorsal fin spine longer than the head; 2nd dorsal fin with distinct concavity in the middle (Ref. 5578).
Body shape (shape guide): elongated.
Feeds on ophiuroids (Ref. 27637). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Compagno, L.J.V., 1986. Chimaeridae. p. 144-145. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3181)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
用具
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インターネットの情報源
モデルに基づく推定値
好ましい温度 (参照
123201): 8.9 - 11.4, mean 9.7 °C (based on 16 cells).
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00139 - 0.00824), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 4.1 ±0.60 se; based on food items.
回復力 (参照
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Assuming Fec <100).
漁業の脆弱性 (Ref.
59153): Moderate to high vulnerability (47 of 100).
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