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Siluriformes (Catfishes) >
Ictaluridae (North American freshwater catfishes)
Etymology: Pylodictis: Greek, pylos = mud + Greek, ichthys = fish (Ref. 45335); olivaris: olivarus meaning olive colored (Ref. 10294).
More on author: Rafinesque.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल; पोटामोड़िरोमस (Ref. 126106). Subtropical; ? - 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.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm 48.3, range 46 - 50.8 cm
Max length : 155 cm TL पुल्लिंग / अलिंग; (Ref. 86798); अधिकतम प्रकाशित वज़न: 55.8 kg (Ref. 40637); अधिकतम सूचित उम्र: 25 वर्षो (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).
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)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: व्यापारिक; आखेट मत्स्य: हां; जलजीवालय: सार्वजनिक लजीवालय
साधन
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00446 - 0.00777), b=3.11 (3.03 - 3.19), in cm total length, based on LWR estimates for this species (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
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.
लौटाव (संदर्भ
120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (K=0.06-0.38; tm=3-6; tmax=34; Fec=6,900).
मछली पकड़ने की भेद्यता (Ref.
59153): High vulnerability (62 of 100).
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पोषक तत्व (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);
