分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Pimelodidae (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
生态学
; 淡水 居于水底的. 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 與奧里諾科河河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 32.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 111115); 最大体重: 260.00 g (Ref. 111115)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 6; 臀棘: 0; 臀鳍软条: 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.
位于侧面的眼, 看得见的背面而且腹地; 当成鱼时，直径是 2.2-3.3 倍进入眼间骨宽度之内。 内部的神经触须通常在喉部的尖顶后面,很少地与它平的, 而且从不达到鳃盖的肉质边缘。 外部的神经触须更长的, 延伸超过胸鳍的起源。 上颌骨触须被延伸至腹鳍的可变的长或超过。 腹鳍当扁平的从肛门到臀鳍起源半路地大约达到。
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).
采集自白色与黑色的水域了; 发现于洪泛区湖，大河与有潮汐涨落的河川小溪 (或 canos)了; 在沙子，泥与泥土底部上伴随着植物 (水流-侧边树的例如高的芦苇，突出的草与根团) 。 显然夜行而且藏成群沿着水流边缘在白天期间.(参考文献 40631)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 亞馬遜河， Essequibo 與奧里諾科河河流域。
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)
人类利用
渔业: 自给性渔业; 水族馆: 商业性
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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=0.00513 (0.00293 - 0.00898), b=3.09 (2.94 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
