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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Heptapterus: Greek, epta = seven + Greek, pteron = wing, fin (Ref. 45335); qenqo: Name derived from the Quechua language meaning serpentine or sinuous, in allusion to the swimming movements of this species; adjective, singular and masculine..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水. Tropical
South America: Argentina.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 21.3 cm SL オス/雌雄の選別がない; (Ref. 86258)
簡単な記述
形態学 | 形態計測学
背鰭 (合計): 6; 臀鰭: 11 - 13; 脊つい: 51 - 52. This species is distinguished by the following characters: a small serrae on the anterior proximal margin of first pectoral-fin ray; anal-fin rays iv-v, 11-13 (15-17 total); adipose-fin base relatively short (40.9-47.4% SL); small eyes (7.4-14.2% HL); adipose fin is confluent to caudal fin; maxillary barbel not reaching pectoral-fin base in adults and reaching or scarcely surpassing first pectoral-fin ray in small juveniles (Ref. 86258).
This species inhabits well-oxygenated rivers and streams, with gravel substratum and moderate to rapid flowing waters. Individuals usually shelter under large rocks. Apparently solitary and only a few specimens are usually captured per collecting site (Ref. 86258).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Aguilera, G., J.M. Mirande and M.M. Azpelicueta, 2011. A new species of Heptapterus Bleeker 1858 (Siluriformes, Heptapteridae) from the Río Salí basin, north-western Argentina. J. Fish Biol. 78(1):240-250. (Ref. 86258)
Human uses
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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
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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 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00362 - 0.01664), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).