分類 / 名前
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlasomatinae
Etymology: Mesonauta: Name not explained by Günther; probably from the Greek 'mesos' meaning middle or average, and 'nautes' for sailo (alternatively from Latin 'nauta' or sailor; the name perhaps refers to he position of dorsal fin origin posterior to the pelvic fin which was the author's principal diagnostic character; festivus: Name from Latin adjective meaning merry, handsome (Ref. 86444).
More on author: Heckel.
Taxonomic Remarks
Redescription by Kullander & Silfvergrip (1991: 420), with bibliography, diagnosis, description, distribution, and illustrations.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.0 - 8.0; dH range: 4 - 6; 移住性ではない. Tropical; 25°C - 34°C (Ref. 40602)
South America: Paraná River basin, in the Paraguay River drainage in Brazil and Paraguay; Amazon River basin, in the Guaporé (Brazil and Bolivia), Madre de Dios (Peru), Mamoré (Bolivia), Jamari and Tapajós (Brazil) River drainages.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 12.1 cm SL オス/雌雄の選別がない; (Ref. 111115); 最大公表体重: 97.41 g (Ref. 111115)
Reported to reach around 10 cm SL (Ref. 81048). Tapajos (NRM) specimens were taken from a sandy shore at Aveiro and a small creek at Santarem, close to vegetation and with mud and sand bottom; Vila Bela da Santfssima Trinidade (NRM) specimens were seined in the shadow of the ferry, in shallow water with much aquatic vegetation; while from Madre de Dios, one sample was seined from a pool in a stream with clear, slightly tinted water and no vegetation; another, mixed sample came from a small stream and nearby cattle pool (Ref. 86444).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
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: 高い商業の; 水族館・水槽: 高い商業の
用具
特記事項
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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) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.03388 (0.01761 - 0.06519), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
栄養段階 (参照 69278) |
2.5 ±0.23 se; based on food items. |
回復力 (参照 120179) |
高い, 15か月以下の倍増期間の最小個体群 (tm<1). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (17 of 100). 🛈 |
価格帯 (Ref. 80766) |
Unknown.
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