分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
油鯰科 (Long-whiskered catfishes)
Etymology: Sorubim: Brazilian local name, sorubim (Ref. 45335); elongatus: Named for its extremely elongate shaped head and body.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
South America: Amazon, Essequibo, and Orinoco River basins (Ref. 36506); a disjunct record from Río Mamore, Bolivia (Ref. 57983).
南美洲: 亞馬遜河， Essequibo 與奧里諾科河流域;(參考文獻 36506) 來自 Rio Mamore ，玻利維亞的一個分離的記錄.(參考文獻 57983)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 32.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 111115); 最大體重: 260.00 g (Ref. 111115)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 6; 臀棘: 0; 臀鰭軟條: 20 - 25; 脊椎骨: 44 - 46. Laterally positioned eyes, visible dorsally and ventrally; in adults, the diameter is 2.2-3.3 times into interorbital width. Inner mental barbels usually posterior to gular apex, rarely even with it, and never reaching fleshy margin of opercle. Outer mental barbels longer, extending beyond the origin of pectoral fins. Maxillary barbels variable in length, extending to pelvic fins or beyond. Pelvic fins when depressed reaching approximately halfway from anus to anal-fin origin.
位於側面的眼, 看得見的背面而且腹地; 當成魚時，直徑是 2.2-3.3 倍進入眼間骨寬度之內。 內部的神經觸鬚通常在喉部的尖頂後面,很少地與它平的, 而且從不達到鰓蓋的肉質邊緣。 外部的神經觸鬚更長的, 延伸超過胸鰭的起源。 上頜骨觸鬚被延伸至腹鰭的可變的長或超過。 腹鰭當扁平的從肛門到臀鰭起源半路地大約達到。
Collected from both white and black waters; found in floodplain lakes, small creeks (or caños) to large rivers and tidal rivers; on sand, mud, and clay substrates associated with vegetation (e.g. tall reeds, emergent grasses, and root masses of stream-side trees). Apparently nocturnal and hide in groups along stream margins during the day (Ref. 40631).
採集自白色與黑色的水域.; 發現於洪泛區湖，大河與有潮汐漲落的河川小溪 (或 canos).; 在沙子，泥與泥土底部上伴隨著植物 (水流-側邊樹的例如高的蘆葦，突出的草與根團) 。 顯然夜行而且藏成群沿著水流邊緣在白天期間.(參考文獻 40631)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 亞馬遜河， Essequibo 與奧里諾科河流域;(參考文獻 36506) 來自 Rio Mamore ，玻利維亞的一個分離的記錄.(參考文獻 57983)
Littmann, M.W., B.M. Burr, R.E. Schmidt and E.R. Isern, 2001. Sorubim elongatus, a new species of catfish (Siluriformes: Pimelodidae) from tropical South America syntopic with S. lima. Ichthyol. Explor. Freshwat. 12(1):1-16. (Ref. 40631)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 22 December 2020
人類使用
漁業: 自給性漁業; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00303 - 0.00910), b=3.09 (2.94 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
