分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Ictaluridae (North American freshwater catfishes)
Etymology: Pylodictis: Greek, pylos = mud + Greek, ichthys = fish (Ref. 45335); olivaris: Pylodictis (Greek)=mud fish; olivaris (Latin)=olive-colored (Ref. 79012).
More on author: Rafinesque.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 溫帶; ? - 33°C (Ref. 12741); 47°N - 26°N, 108°W - 80°W (Ref. 86798)
North America: Lower Great Lakes and Mississippi River basins from western Pennsylvania to White-Little Missouri River system in North Dakota, and south to Louisiana in USA; Gulf Slope from Mobile Bay drainage in Georgia and Alabama in USA to Mexico. Transplanted elsewhere in USA.
北美洲: 來自西方的賓州到的五大湖下游與密西西比河流域在達科塔北方部的白色-小的密蘇里河流域, 而且南至在美國的路易斯安那; 從在喬治亞州與阿拉巴馬州的摩比灣流域到墨西哥的海灣斜坡。 移植了在美國的其他地方。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 48.3, range 46 - 50.8 cm
Max length : 155 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798); 最大体重: 55.8 kg (Ref. 40637); 最大年龄: 25 年 (Ref. 120825)
Adults inhabit pools with logs and other debris in low-gradient to moderate-gradient, small to large rivers. Also found in lakes and impoundments. Young occur in rocky and sandy runs and riffles (Ref. 5723, 86798). Juveniles feed on aquatic insect immature in riffle areas (Ref. 10294). Older individuals consume crayfish, clams and fishes (Ref. 93252).
栖息于有圆木与其他残砾的水池在坡度缓之到中等的-坡度，小型到大型河川。 也发现于湖与圈围水域。 幼鱼出现在岩石的与多沙的支流与急流。
北美洲: 來自西方的賓州到的五大湖下游與密西西比河流域在達科塔北方部的白色-小的密蘇里河流域, 而且南至在美國的路易斯安那; 從在喬治亞州與阿拉巴馬州的摩比灣流域到墨西哥的海灣斜坡。 移植了在美國的其他地方。
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
人类利用
渔业: 商业性; 游钓鱼种: 是的; 水族馆: 公众的水族馆
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00412 - 0.00733), b=3.13 (3.04 - 3.22), in cm total length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.3 se; based on diet studies.
Generation time: 7.8 (6.9 - 9.5) years. Estimated as median ln(3)/K based on 24
growth studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (K=0.06-0.38; tm=3-6; tmax=34; Fec=6,900).
Fishing Vulnerability (Ref.
59153): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 32.2 [18.3, 73.4] mg/100g; Iron = 1.17 [0.65, 2.08] mg/100g; Protein = 17.1 [15.0, 18.9] %; Omega3 = 0.467 [0.192, 1.143] g/100g; Selenium = 77.9 [32.5, 172.5] μg/100g; VitaminA = 14.8 [5.0, 45.4] μg/100g; Zinc = 0.595 [0.403, 0.893] mg/100g (wet weight);
