分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Siluriformes (Catfishes) >
Chacidae (Squarehead or angler catfish) > Stevardiinae
Etymology: Cyanogaster: Cyano, latinized from the Greek word kúanous (κυανος), meaning blue, and gaster, from the Greek gastêr (γαστηρ), meaning stomach, in referring to the conspicuous iridescent blue colour in the abdominal region .; noctivaga: Name from Latin noun 'nox' for night and the verb 'vagare' meaning to walk about, when combined as 'noctivaga' or the night wanderer, referring to the presumed nocturnal habits of the species, which was collected exclusively at night; an adjective..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; 深さの範囲 ? - 2 m (Ref. 93233). Tropical
South America: Brazil and Colombia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 1.7 cm SL オス/雌雄の選別がない; (Ref. 93233)
簡単な記述
形態学 | 形態計測学
背鰭 (合計): 8-9; 臀鰭: 19 - 22. This species is distinguished by the following characters: D ii + 8; pelvic-fin rays i + 5; teeth in the inner series of the premaxilla 4; differs from all species of the Stevardiinae by having a single conical tooth in the outer premaxillary series (vs. absent); lacks a pheromone pump usually associated with modified scales on the caudal-fin base; eye large; a line of black chromatophores along the bases of anal and caudal fins; body transparent with abdominal region iridescent blue in life (Ref. 93233).
Specimens were caught with a seine pulled at approximately 1.5 m depth. The type locality is a beach on a rocky poorly vegetated plateau, where the water was dark black with slow current. Individuals were collected at night, approximately between 20:00 and 24:00, during the dry season (October). Stomach contents of cleared and stained specimens were mainly remnants of insect larvae (Ref. 93233).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Mattox, G.M.T., R. Britz, M. Toledo-Piza and M.M.F. Marinho, 2013. Cyanogaster noctivaga, a remarkable new genus and species of miniature fish from the Rio Negro, Amazon basin (Ostariophysi: Characidae). Ichthyol. Explor. Freshwat. 23(4):297-318. (Ref. 93233)
Human uses
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
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 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
