Pangasius krempfi : fisheries

Pangasius krempfi Fang & Chaux, 1949

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Pangasius krempfi
Picture by Roberts, T.R.

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> Siluriformes (Catfishes) > Pangasiidae (Shark catfishes)
Etymology: Pangasius: The Vietnamese name of a fish (Ref. 45335).

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

; 海; 新鮮な水; 汽水性の 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.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 120 cm SL オス/雌雄の選別がない; (Ref. 30857); 最大公表体重: 14.0 kg (Ref. 9497)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 1; 背鰭 (合計): 6-7; 肛門の骨 4; 臀鰭: 31 - 34. Body depth 4.5-5.0 times in SL (Ref. 43281). Dorsum sky blue; submarginal caudal-fin stripes absent; no humeral spot; vomerine teeth separate at midline, joined to palatine teeth on each side forming long crescentic patches; 18-22 gill rakers in first arch (Ref. 12693). Body dark blackish gray on top and sides, silver gray on abdomen and fins lightly yellow (Ref. 45563).

生物学     用語集 (例 epibenthic)

Migrating but the direction is unknown. Dietary habits have not been studied. Taxonomy of this species may be problematic (Ref. 12693). Unique among pangasiid species in the Mekong in spending a major part of its life in marine coastal waters. Migrates into the Mekong River (but not into any other rivers) in order to breed (Ref. 12369). Regarded to be anadromous (Ref. 12369). It was hypothesized that at least two populations in the Mekong undertake migration (Ref. 37770). One population migrates during May-September from just south of Khone Falls upstream to spawning grounds along the mainstream Mekong all the way to Chiang Khong near the Lao-Thai-Myanmar border. The other population migrates downstream from around Stung Treng to unknown spawning grounds somewhere between Stung Treng and Kompong Cham in Cambodia during the spawning season between May and August. When water level starts to fall in October, the fish moves back to the main river to initiate an upstream dispersal migration, reaching the stretch just below the Khone Falls. Stays in deep pools within the mainstream during the dry season (Ref. 37770). Only two specimens of the fish were collected on April 5, 1956 and September 10, 1957 in Beihai City, Guangxi (Ref. 45563). Another on November 22, 1963 at Shanwei City of Guangdong Province (Ref. 45563).

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. 123251)

  攻撃されやすい (VU) (A2d); Date assessed: 24 February 2011

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 商業
FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00217 - 0.00962), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  2.0   ±0.00 se; based on food items.
回復力 (Ref. 120179):  .
弱み (Ref. 59153):  High to very high vulnerability (72 of 100) .
価格帯 (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 24.7 [8.6, 82.7] mg/100g ; Iron = 0.469 [0.161, 1.430] mg/100g ; Protein = 14.1 [12.5, 15.8] % ; Omega3 = 0.221 [0.089, 0.523] g/100g ; Selenium = 89.2 [36.4, 234.3] μg/100g ; VitaminA = 8.93 [1.40, 60.54] μg/100g ; Zinc = 2.18 [0.88, 4.61] mg/100g (wet weight);