分類 / Names
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Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Compsaraia: Greek, kompsos, -e, -on = elegance, polish, gracefulness + see under Raja; iara: Named after the Iara, a water nymph from Tupi-Brazilian folklore said to reside in the rivers of the Brazilian Amazon and often blamed for the disappearance of fishermen. A noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の; 深さの範囲 2 - 30 m (Ref. 115978). Tropical
South America: Amazon River basin in Brazil.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 23.5 cm TL オス/雌雄の選別がない; (Ref. 115978)
簡単な記述
検索表 | 形態学 | 形態計測学
臀鰭: 155 - 174. Compsaraia iara is easily diagnosed from all species of Compsaraia by the following characters: forehead strongly rounded with dorsal margin of frontals and parasphenoid convex (vs. straight or concave in adult C. compsa and C. samueli); mouth small, gape not reaching vertical with eye in adults (vs. reaching or exceeding vertical with eye in adult C. compsa and C. samueli); absence of premaxilla teeth (vs. 8-16 premaxilla teeth in C. compsa and 4-10 in C. samueli (Ref. 115978).
Found in white waters at depths ranging from 2- 30 meters. Feeds exclusively on dipteran (Ceratopogonidae) larvae mixed with very fine sand, suggesting a benthic foraging behavior (Ref. 115978).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Bernt, M.J. and J.S. Albert, 2017. A new species of deep-channel electric knifefish Compsaria (Apteronotidae, Gymnotiformes) from the Amazon River. Copeia 105(2):211-219. (Ref. 115978)
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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00145 - 0.00871), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).