分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: Trigonectes: Greek, trygon = a sting ray + Greek, nekton = swimmer (Ref. 45335).
More on author: Costa.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; 移住性ではない. Tropical
South America: Guaporé River basin.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 8.0 cm TL オス/雌雄の選別がない; (Ref. 36579)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 10 - 12; 臀鰭: 16 - 17. Having curved mouth cleft; large eyes with orbital diameter 10.4-11.5% SL in adult males; body depth 22.1-22.2% SL in adult males; head length 30.6-32.7% SL in juveniles; and pelvic length 56.4-59.1% SL (Ref. 26656).
Bottom spawner, 6 months incubation (Ref. 27139).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. 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. 36579)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00315 - 0.03034), b=3.03 (2.77 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
