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> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Poecilia:Greek, poikilos = with a lot of colours (Ref. 45335). More on author: Lesueur.
North America: Cape Fear drainage in North Carolina, USA to Veracruz, Mexico. Introduced to many countries. Several countries report adverse ecological impact after introduction. Gulf of Mexico (Ref. 26938).
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm6.7, range 5 - 9.5 cm Max length : 15.0 cm TL オス/雌雄の選別がない; (Ref. 5723); 10.0 cm TL (female); common length : 3.4 cm TL オス/雌雄の選別がない; (Ref. 12193)
The large sail-like dorsal fin of the male is the most distinctive characteristic of this fish; coloration can vary from green, gray to jet black; speckled forms also common (Ref. 44091). Body shape (shape guide): fusiform / normal.
Adults are found in still or gently flowing warm water of small creeks and drains (Ref. 44894). They occur in ponds, lakes, sloughs, and quiet, often vegetated, backwaters and pools of streams (Ref. 5723) and also in coastal waters (Ref. 7251). Abundant in tidal ditches and brackish canals. They feed mainly on algae (Refs. 7251; 44091), also consumes animal material: rotifers, small crustaceans (such as copepods and ostracods) and aquatic insects (Ref. 79012). Migratory behaviour is undetermined (Ref. 126106).
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00760 - 0.02184), b=3.05 (2.91 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
栄養段階 (参照 69278): 2.0 ±0.00 se; based on food items.
