分类 / Names
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Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: weitzmani: Lophiobrycon: Greek lophia = crest (in reference to the elongate adipose fin in mature males).
weitzmani: Dedicated to Stanley H. Weitzman for his work on Neotropical Characiformes, especially on the subfamily Glandulocaudulinae (Cha.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 6.9 - 7.0. 热带; 19°C - 21°C (Ref. 52251); 20°S - 21°S
South America: Upper Paraná River basin (Brazil).
南美洲: 上面的巴拉纳河流域 (巴西).
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 2.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 52251); 2.7 cm SL (female)
Most of the specimens were caught in a flooded/marshy area draining into the stream, with little current on a muddy bottom with a large amount of decomposing litter. Few specimens were caught in the stream itself, in a margin area of slower current under riparian vegetation over a bottom of rocks, pebbles and sand, with submerged litter only on the bottom of the larger and deeper pools. The species eats mainly aquatic and terrestrial arthropods. Sexual dimorphism (Ref. 52251).
大部分的标本捕获一被水淹没的/多沼地的区域进入水流之内注入, 水流很少的地方在一个泥底部上具有一个大量的分解胎窝。 在一个岩石,小圆石与沙子的底部上的河岸植物下面的一个较慢的水流的边缘区域中,少数标本于水流本身捕获, 藉由水中枯枝落叶只有在更大与更深的水池的底部上。 此鱼种吃主要水生与陆栖的节肢动物。 性的同种二形.(参考文献 52251)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 上面的巴拉纳河流域 (巴西).
Castro, R.M.C., A.C. Ribeiro, R.C. Benine and A.L.A. Melo, 2003. Lophiobrycon weitzmani, a new genus and species of glandulocaudine fish (Characiformes: Characidae) from the rio Grande drainage, upper rio Paraná system, southeastern Brazil. Neotrop. Ichthyol. 1(1):11-19. (Ref. 52251)
世界自然保护联盟红皮书 (Ref. 130435)
濒危 (EN) (B2ab(ii,iii)); Date assessed: 07 November 2018
人类利用
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俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.42 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).