分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Perciformes/Serranoidei (Groupers) >
Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Acanthistius: Greek, akantha = thorn + Greek, istion = sail (Ref. 45335); joanae: Named for Joan Wright.
Eponymy: Joan Wright was a research assistant of the describer, Phil Heemstra. Although he promised to name the fish after her, Joan had retired by the time he got round to doing so. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 深度上下限 23 - 140 m (Ref. 83528).
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Western Indian Ocean: South Africa.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 83528)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 7; 背的軟條 (總數) : 14 - 16; 臀棘: 3; 臀鰭軟條: 7; 脊椎骨: 26. This species is characterized by the following: distinct ctenoid scales cover the interorbital, maxilla, infraorbitals, interopercle, dorsal 4 branchiostegal rays, gular area, isthmus, chest, belly and proximal two-thirds of pectoral fin; interorbital area is slightly convex; longest dorsal fin spine equal to or longer than peduncle depth; Caudal, anal, and pelvic fins are pale (fin rays mostly reddish orange in life); a large oval, blackish brown blotch (most prominent dark mark on the head) covers most of the opercle; 17-19 pectoral-fin rays (Ref. 83528).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Heemstra, P.C., 2010. Taxonomic review of the perciform fish genus Acanthistius from the east coast of southern Africa, with description of a new species and designation of a neotype for Serranus sebastoides Castelnau, 1861. Zootaxa 2352:59-68. (Ref. 83528)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Preferred temperature (Ref.
123201): 13.6 - 23.9, mean 17.9 °C (based on 8 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00618 - 0.02945), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
