分類 / Names
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Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake; thielei: Named for Werner Thiele, who photographed and caught the holotype.
Eponymy: Werner Thiele (d: 1966) is an Austrian self-taught underwater photographer. He was the first person to photograph and capture this species. (Ref. 128868), visit book page.
More on authors: Nielsen & Cohen.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の漂泳性; 深さの範囲 2 - 25 m (Ref. 56143). Tropical; 21°C - 25°C (Ref. 56143)
Western Pacific: Sulawesi, Indonesia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL オス/雌雄の選別がない; (Ref. 56143); 15.0 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 66; 臀鰭: 41. Diagnosis: Fin rays in dorsal 66; anal 41; pectoral 21. Vertebrae 11 + 27 (ural elements counted as 1). Head length 33% SL. One large lateral line pore (equal to posterior supraorbital pore) near angle of opercle. The caudal fin is free of the dorsal and anal fins (Ref. 56143).
Observed in limestone caves and sinkholes which are probably connected at depths between 2 and 30 meters; often in lightless chambers without current, few are found at the entrance of caves where they hide beneath rock ledges. No reaction to torchlight was shown and escape distance was only about 2 centimeters; mostly were seen motionless, with only a slight movement of the fins maintaining the fishes' position (Ref. 56143).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Nielsen, J.G. and D.M. Cohen, 2004. Grammonus thielei (Ophidiiformes: Bythitidae) - a new bythitid cavefish from off Sulawesi, Indonesia. The Beagle 20:83-86. (Ref. 56143)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
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 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00172 - 0.01163), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
