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> Siluriformes (Catfishes) > Anchariidae (Vaonas)
Etymology: Gogo:Gogo is the Malagasy word most commonly used to refer to members of Anchariidae; ornatus:The specific epithet comes from the Latin ornatus, meaning in splendid dress, in reference to its colouration (Ref. 56142).
背面の脊椎 (合計) : 2; 背鰭 (合計) : 6 - 7; 肛門の骨: 0; 臀鰭: 12; 脊つい: 43 - 46. Diagnosis: Gogo ornatus is distinguished from other members of Anchariidae by a highly mottled pigmentation pattern consisting of contrasting light and dark patches vs. uniform colouration with or without isolated small scattered dark spots or subtle mottled brownish-gray colouration (Ref. 56142). It can be further distinguished from Gogo brevibarbis in having unicuspid teeth on the upper and lower jaws vs. bicuspid; and a smaller eye, 9.2-13.6% of head length vs. 15.9% (Ref. 56142). It can be distinguished from Gogo arcuatus in having a smaller eye, 9.2-13.6% of head length vs. 17.7-18.0%; and a straight dorsoposterior margin of the dorsal fin vs. concave (Ref. 56142).
Body shape (shape guide): fusiform / normal.
Found in a clear, clean, and well oxygenated river with a substrate composed of sand and gravel, with large scattered boulders (Ref. 56142).
Ng, H.H. and J.S. Sparks, 2005. Revision of the endemic Malagasy catfish family Anchariidae (Teleostei: Siluriformes), with descriptions of a new genus and three new species. Ichthyol. Explor. Freshwat. 16(4):303-323. (Ref. 56142)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (B1ab(iii)); Date assessed: 02 July 2016
系統多様性指数 (参照 82804): PD50 = 0.5781 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
栄養段階 (参照 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
漁業の脆弱性 (Ref. 59153): Low vulnerability (16 of 100). 🛈