分类 / Names
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Teleostei >
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: From the Greek aphod=excrement, and dere=throat, from the position of the anus; sayanus, named after an entomologist, Thomas Say (Ref. 79012).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 温带; 5°C - 26°C (Ref. 12468); 46°N - 28°N
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.
北美洲: 东方而中央的美国。 二个亚种被辨识特征为 Boltz& Stauffer 1993:(参考文献 34807) 到乔治亚州的在大西洋的海岸流域从纽约中的 Aphredoderus sayanus sayanus; 而且密西西比河,五大湖与西方的岸湾流域的 A. sayanus gibbosus, 与在密西西比与乔治亚州之间的岸湾与大西洋的海岸流域的中间等级。
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723); common length : 10.4 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 4 年 (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. 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).
通常在沼泽中发生在泥, 小溪与小型到大型河川的长满植物泥坑,池塘,湖,洄水区与静止的池水。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Eggs in nests are guarded by both parents (Ref. 205).北美洲: 东方而中央的美国。 二个亚种被辨识特征为 Boltz& Stauffer 1993:(参考文献 34807) 到乔治亚州的在大西洋的海岸流域从纽约中的 Aphredoderus sayanus sayanus; 而且密西西比河,五大湖与西方的岸湾流域的 A. sayanus gibbosus, 与在密西西比与乔治亚州之间的岸湾与大西洋的海岸流域的中间等级。
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00170 - 0.01173), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
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.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (tmax=4; K=0.6).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).