分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Rhamdia: Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Tocantins River basin, Brazil.
南美洲: 巴西。
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 23.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 36914)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 1; 背的软条 (总数): 6. Rhamdia itacaiunas is diagnosed from all congeners by the pectoral fin spine with serrations on both sides; caudal fin upper lobe pointed and longer than lower lobe; mouth deeply cleft to near the vertical at the anterior margin of the eye; eyes in advanced position, distinctly closer to the snout than to the operculum hind margin; adipose fin 23.3-28.4% of SL or 96.2-127% of HL; maxillary barbel 41.2-53.8% of SL or 190-231% of HL; broad tooth plates.
Rhamdia itacaiunas 在两边上被用锯齿从所有的同类鉴定藉由胸鳍棘; 尾鳍上叶尖而长度超过下叶; 深深地劈开的嘴到在眼的前缘的垂直者的附近; 眼预先位置, 超过到鳃盖后缘的明显更靠近吻部; 脂鳍 23.3-28.4% 的 SL 或 96.2-127% 的 HL; 上颌骨触须 41.2-53.8% 的 SL 或 190-231% 的 HL; 宽的齿板。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 巴西。
Silfvergrip, A.M.C., 1996. A systematic revision of the Neotropical catfish genus Rhamdia (Teleostei, Pimelodidae). Stockholm University and Swedish Museum of Natural History. 156 pp. + 8 pls. (Ref. 50029)
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
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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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=0.00776 (0.00362 - 0.01664), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).