分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Pimelodus: Greek, pimele = fat + Greek, odous = teeth (Ref. 45335); joannis: Named for John Lundberg, in recognition of his many contributions to catfishes systematics..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的.
South America: Rio Tocantins drainage, Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 7.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 79502)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 2; 背的軟條 (總數) : 6; 脊椎骨: 40. Diagnosed from all other species of the genus Pimelodus, except Pimelodus halisodous, Pimelodus jivaro, Pimelodus ornatus, Pimelodus pictus, and Pimelodus stewarti, by its supraoccipital process with a dorsal median crest; posterior nostril closer to anterior orbital border (vs. posterior nostril closer to anterior nostril than to anterior orbital border); distal portion of dorsal-fin rays 2-4 with a dark spot; caudal- fin base with two dark blotches. Distinguished from Pimelodus jivaro by having a shorter maxillary barbel, extending only slightly past caudal-fin base (vs. maxillary barbel extending beyond caudal-fin base); distal portion of dorsal-fin rays 2-4 with a dark spot, and caudal-fin base with two dark blotches. Differs from Pimelodus ornatus and Pimelodus pictus by the uniform grayish to yellowish coloration (vs. presence of bands or dark dots along flanks, respectively); from Pimelodus stewarti by its shorter posterior cleithral process (10.2-12.4 vs. 12.7-15.6 % of SL); caudal-fin base two dark blotches; and supraoccipital process with dorsal median crest; from Pimelodus halisodous by its shorter pectoral-spine (15.5-18.5 vs. 20.0-23.5% of SL); shorter snout (35.8-41.8 vs. 43.1-47.9% of HL); and fewer premaxillary tooth rows (5-9 vs. 13-16) (Ref. 79502).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Ribeiro, F.R.V., C.A.S. Lucena and P.H.F. Lucinda, 2008. Three new Pimelodus species (Siluriformes: Pimelodidae) from the rio Tocantins drainage, Brazil. Neotrop. Ichthyol. 6(3):455-464. (Ref. 79502)
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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): 3.2 ±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 (10 of 100).
