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> Percopsiformes (Trout-perches, pirate perches and cavefishes) > Aphredoderidae (Pirate perches)
Etymology: Aphredoderus:Greek, aphod = excrement + Greek, dere = throat, in reference to the unusual postion of the anus (Ref. 45335); sayanus:Named after the naturalist Thomas Say (Ref. 10294). Eponymy: Thomas Say (1787–1834) was a self-taught American naturalist whose primary interest was entomology. [...] (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione Ecologia
North America: Eastern and central United States. Previously, two subspecies were recognized by Boltz & Stauffer 1993 (Ref. 34807): Aphredoderus sayanus sayanus in Atlantic Coast drainages from New York to Georgia; and A. sayanus gibbosus in the Mississippi River, Great Lakes, and western Gulf Coast drainages, with intergrades in Gulf Coast and Atlantic Coast drainages between Mississippi and Georgia.
Dimensione / Peso / Età
Maturità: Lm? range ? - ? cm Max length : 14.0 cm TL maschio/sesso non determinato; (Ref. 5723); common length : 10.4 cm TL maschio/sesso non determinato; (Ref. 12193); Età massima riportata: 4 anni (Ref. 12193)
Adults usually occur over mud in swamps, vegetated sloughs, ponds, lakes, backwaters, and quiet pools of creeks and small to large rivers (Ref 5723, 10294). Nocturnal feeders. They feed on aquatic insects, small crustaceans, and occasional small fish including their own young (Ref. 10294). Eggs in nests are guarded by both parents (Ref. 205).
Ciclo vitale e comportamento di accoppiamento Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Eggs in nests are guarded by both parents (Ref. 205).
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Ciclo di vita Riproduzione Maturità Maturità/Gli occhielli sono relativi. Fecondità Deposizione Aggregazioni riproduttive Uova Sviluppo delle uova Larve Dinamica popolazioni larvali
Fisiologia Composizione corporea Nutrienti Consumo di ossigeno Tipo di nuoto Velocità di nuoto Pigmenti visivi Suono del pesce Malattie e parassiti Tossicità (LC50)
Indice di diversità filogenetica (Fonte Biblio. 82804): PD50 = 0.7502 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00169 - 0.01184), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Livello trofico (Fonte Biblio. 69278): 3.1 ±0.39 se; based on food items.
Generation time: 1.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilienza (Fonte Biblio. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tmax=4; K=0.6).
Vulnerabilità della pesca (Ref. 59153): Low vulnerability (21 of 100). 🛈
