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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.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения экология
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.
Размер / Вес / Возраст
половая зрелость: Lm? range ? - ? cm Max length : 14.0 cm TL самец/пол неопределен; (Ref. 5723); common length : 10.4 cm TL самец/пол неопределен; (Ref. 12193); наибольший возраст (опубликованны данные): 4 годы (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).
Жизненный цикл и брачное поведение половая зрелость | размножение | нерест | икра | Плодовитость | личинки
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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Физиология Состав тела Питательные вещества Потребление кислорода Тип плавания Скорость плавания Зрительные пигменты Звук рыбы Болезни и паразиты Токсичность (LC50s)
Индекс филогенетического разнообразия (ссылка 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).
Трофический уровень (ссылка 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.
устойчивость к внешним воздействиям (ссылка 120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (tmax=4; K=0.6).
