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Pangasianodon gigas  Chevey, 1931

Mekong giant catfish
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Image of Pangasianodon gigas (Mekong giant catfish)
Pangasianodon gigas
Picture by Jean-Francois Helias / Fishing Adventures Thailand

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条鰭類 > Siluriformes (Catfish) > Pangasiidae (Shark catfishes)
Etymology: Pangasianodon: The Vietnamese name of a fish + Greek, odous = teeth (Ref. 45335).

環境 / 気候 / 範囲 生態学

; 新鮮な水 底生の漂泳性; potamodromous (Ref. 51243).   Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Asia: endemic to the Mekong basin where it has become rare due to overexploitation. International trade banned (CITES I, since 1.7.1975; CMS Appendix I).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 300 cm TL オス/雌雄の選別がない; (Ref. 30857); 235.0 cm SL (female); 最大公表体重: 350.0 kg (Ref. 43281)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 2; 背鰭 (合計): 7-8; 臀鰭: 35; 脊つい: 48. Body without stripes; posterior nostril located near anterior nostril; 7 branched dorsal-fin rays; gill rakers rudimentary or absent; fins grey, never black (Ref. 12693). The center of the eye above the horizontal line through the mouth angle in juveniles; eye totally below the level of mouth angle in subadults and adults. The maxillary and mandibulary pairs of barbels well developed in juveniles; mandibulary barbels become rudimentary in subadults and adults (Ref. 9448). Gigantic size; oral teeth and gill rakers present in small juveniles, absent at about 30-50 cm SL; dorsal, pelvic and pectoral fins without filamentous extensions (Ref. 43281). Distinguished from other large catfish in the Mekong by its lack of teeth and the almost complete absence of barbels (Ref. 2686)

生物学     用語集 (例 epibenthic)

A migratory species (Ref. 37772) which occurs in medium to large-sized rivers (Ref. 12975). Feeds on detritus and algae on the bottom (Ref. 58784); feeds only on vegetation in the river but takes other food in captivity; little is known on its general pattern of life and migratory journeys for spawning (Ref. 2686). Shows one of the fastest growth rates of any fish in the world, reaching 150 to 200 kg in 6 years (Ref. 12693). Cited in the Guinness Book of Records as largest freshwater fish (Ref. 6472). Marketed fresh (Ref. 12693). Maximum length of 300 cm needs confirmation. Threatened due to over harvesting and habitat loss (Ref. 58490).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 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

Roberts, T.R. and C. Vidthayanon, 1991. Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species. Proc. Acad. Nat. Sci. Philad. 143:97-144. (Ref. 7432)

IUCNのレッドリストの状況は (Ref. 115185)

CITES (Ref. 94142)

人間に対する脅威

  Harmless




Human uses

水産業: 商業; 水産養殖: 実験の
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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref. 69278):  2.3   ±0.17 se; Based on food items.
回復力 (Ref. 69278):  低い, 4.5年~14年の倍増期間の最小個体群 (Assuming tm=5-10).
弱み (Ref. 59153):  Very high vulnerability (76 of 100) .
価格帯 (Ref. 80766):   Unknown.