分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Siluriformes (Catfishes) >
Plotosidae (Eeltail catfishes)
Etymology: Tandanus: A local name, tandan, in Australia.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の; potamodromous (Ref. 51243); 深さの範囲 10 - ? m. Temperate; 5°C - 25°C (Ref. 2060); 12°S - 43°S
Oceania: endemic to Australia.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 45.0  range ? - ? cm
Max length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 5259); common length : 45.0 cm TL オス/雌雄の選別がない; (Ref. 5259); 最大公表体重: 6.8 kg (Ref. 36739); 最大記録サイズ: 8 年 (Ref. 1107)
Head large; thick and fleshy lips; nostrils tubular. First dorsal fin high, with a strong serrated spine and 6 rays. Skin tough and smooth. Body coloration in adults vary from olive-green to brown, black or purplish dorsally and white ventrally. Urogenital papilla triangular in females; longer and cylindrical in males.
Body shape (shape guide): fusiform / normal; Cross section: circular.
Adults inhabit slow moving streams, lakes and ponds with fringing vegetation. They swim close to sand or gravel bottoms. More abundant in lakes than in flowing water (Ref. 44894). Usually solitary but juveniles sometimes form loose aggregations. Mainly bottom-feeders (Ref. 44894). Feed on insect larvae, prawns, crayfish, mollusks, and small fishes. Breeding occurs between spring and mid-summer when water temperatures rise to between 20° and 24°C (Ref. 44894). Utilized for human consumption.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Water temperature (20-24 °C) considered the primary spawning stimulus. There is direct pairing during spawning. Male builds nest (0.6-2.0 m in diameter) and cares for eggs in the nest up to 2 weeks. The nest is made of gravel and rocks with a central sandy depression in which the female deposits up to 20,000 eggs depending on her size (Ref. 5259). Eggs scattered into the rubble are tended and guarded by the male after the female departs (Ref. 205). Hatching occurs in 7-10 days at 18°C (Ref. 240).
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
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: 商業; ゲームフィッシュ: はい; 水族館・水槽: 商業
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
系統多様性指数 (参照
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00275 - 0.01448), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 3.3 ±0.48 se; based on food items.
Generation time: 11.0 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (参照
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (tm=5; K=0.10).
漁業の脆弱性 (Ref.
59153): Moderate vulnerability (37 of 100).
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