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: Pimelodus: Greek, pimele = fat + Greek, odous = teeth (Ref. 45335); tetramerus: Name from Greek 'tetra' and 'meros', referring to the four dark stripes on the sides of the body..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Brazil.
南美洲: 巴西。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 17.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 58353)
簡短描述
型態特徵 | 形態測量圖
This species is distinguished from its congeners by having four dark stripes on the sides of the body, the most dorsal beginning just behind the pre-dorsal plate and finishing at the end of the adipose-fin base; the second, wider than the first one, running just above the lateral line and extending from the lateral border of the supra-occipital process to the caudal fin base; both stripes above are fragmented on its anterior portion, forming dark points that may join to form a vermiculate pattern; the dark dots and the vermiculate pattern extend over the dorsum, anterior to the dorsal-fin and head; third stripe, also wide, runs just below the lateral line and begin near the upper region of the postcleithral process and extends until the caudal fin base; fourth stripe, shorter than the three others, and absent in a few cases, begins above of the postcleithral process and ends nearly the pelvic fin; presence of a narrow light stripe on the lateral line, with about 1/3 of the width of the third dark stripe, and a dark longitudinal bar on the ventral lobe of caudal fin (Ref. 58353).
這種被與它的同類區分藉著具有四條深色的斑紋在身體側邊上, 最背部的初期在脂鰭基底結束的時候在前背部的碟與終結正後方; 第二個, 比第一個寬,在側線的正上方跑而且延伸後頭骨上方突起到尾鰭基底的從側面邊緣; 兩者的斑紋上方被碎片在它的前部,形成可能結合形成一個以蠕蟲爬跡形為裝飾的圖案的深色的點; 深色的點與以蠕蟲爬跡形為裝飾的圖案在背面之上延伸, 位於背鰭與頭部前; 第三條斑紋, 也廣闊地, 小支流在側線正下方而且在 postcleithral 突起的上面區域的附近開始而且延伸到尾鰭基底; 第四條斑紋, 短於這三個其它, 而且不存在於一些情況, 開始 postcleithral 突起的上方而且幾乎結束腹鰭; 在側線上有一個狹窄的淡色條紋, 藉由第三條深色的斑紋的寬度的大約 1/3, 與一條深色的縱向橫帶在尾鰭的腹葉上.(參考文獻 58353)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 巴西。
Ribeiro, F.R.V. and C.A.S. de Lucena, 2006. Nova espécie de Pimelodus (Siluriformes, Pimelodidae) dos rios Tapajós e Tocantins, Brasil. Iheringia, Sér. Zool. Porto Alegre 96(3):321-327. (Ref. 58353)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
人類使用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00299 - 0.01530), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
