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Wallago attu (Bloch & Schneider, 1801)

Wallago
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Wallago attu
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Pakistan country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in the Indus plain and adjoining hilly areas (Ref. 4833). Occurs in Azad Jammu, Kashmir (Ref. 40982) and Pishin Lora drainage(Ref. 39701). Also known from North West Frontier Province, Punjab, Sindh and Balochistan (Ref. 51161). Also Ref. 12076, 41236, 43640.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pk.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Mirza, M.R., 2002
National Database:

Common names from other countries

叉尾鲶, Валлага, Whiskered Catfish, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Siluridae (Sheatfishes)
Etymology: Wallago: wallago;Bleeker, in 1851, took the Indian fish name, gave it generic range and used it connection with a new species. The name is "walaga" in Telugu / Tamil (Ref. 45335).
  More on authors: Bloch & Schneider.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水; 汽水性の 底生の; potamodromous (Ref. 37770).   Tropical; 22°C - 25°C (Ref. 2060); 38°N - 10°S

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Asia: Pakistan to Viet Nam and Indonesia. Reported from Afghanistan (Ref. 39701). Lower risk - near threatened status in Western Ghats, India (Ref. 44149).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 240 cm TL オス/雌雄の選別がない; (Ref. 6028); common length : 75.0 cm TL オス/雌雄の選別がない; (Ref. 6028)

簡単な記述 検索表 | 形態学 | 形態計測学

背鰭 (合計) : 5; 臀鰭: 77 - 97. Head broad, snout depressed. Body elongate, strongly compressed. Mouth very deeply cleft, its corner reaching far behind eyes. Teeth in jaws set in wide bands; vomerine teeth in two small patches. Barbels two pairs; maxillary barbels extending to anterior margin posterior of anal fin, mandibulary barbels to angle of mouth. Eyes small, with a free orbital margin. Dorsal fin small, anal fin very long (Ref. 4792). Mandibular barbel longer than pelvic fin; 24-30 gill rakers on the first arch (Ref. 12693). Eye in front of vertical through corner of mouth (Ref. 43281).

生物学     用語集 (例 epibenthic)

Found in large rivers, lakes and tanks. A large, voracious and predatory catfish which thrives in heels with grassy margin (Ref. 6028); mostly hides under holes in river banks and canals (Ref. 44149). Associated with deep, still or slow-flowing water with a mud or silt substrate (Ref. 6028). Sluggish and stays on muddy or silty bottom in search of food. Juveniles feed mainly on insects; adults feed on smaller fish, crustaceans, and mollusks. Oviparous, distinct pairing possibly like other members of the same family (Ref. 205). Abundant during the warm season; a pre-monsoon summer breeder. In the Mekong, it is reported to migrate to smaller streams, canals and to the floodplain during the flood season (Ref. 37770). When the water level in the Mekong drops and the flood recedes, it moves to the Mekong or larger tributaries, where it stays in deep pools until the next inundation period (Ref. 37770). Destructive to other more valuable food-fishes. Bites strongly if handled, with its huge mouth, formidable jaws, and band of conical teeth. Threatened due to over harvesting (Ref. 58490).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. Volume 2. A.A. Balkema, Rotterdam, i-xxii + 543-1158, 1 pl. (Ref. 4833)

IUCNのレッドリストの状況は (Ref. 130435)

  攻撃されやすい (VU) (A2d); Date assessed: 12 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Traumatogenic




Human uses

水産業: 商業; ゲームフィッシュ: はい
FAO(Publication : search) | FishSource |

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World Records Freshwater Fishing | 動物に関する記録

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00464 - 0.00681), b=2.99 (2.93 - 3.05), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
栄養段階 (Ref. 69278):  3.7   ±0.56 se; based on food items.
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (Fec = 66,070; K=0.6;).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
価格帯 (Ref. 80766):   Unknown.