分類 / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: parecis: Named for Chapada dos Parecis (plateau including the type locality), an important watershed that separates tributaries of three basins: rio Madeira, rio Tapajós and rio Paraguai. A noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Rio Madeira basin in Brazil.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 7.8 cm SL オス/雌雄の選別がない; (Ref. 109906)
簡単な記述
形態学 | 形態計測学
背鰭 (合計): 11; 臀鰭: 19 - 22; 脊つい: 32 - 33. Moenkhausia parecis can be diagnosed from all congeners, except M. clorophthalma, some populations of M. cotinho, M. lineomaculata, M. petymbuaba, and M. plumbea, by having a dark blotch on the anterior portion of each scale of the second to seventh longitudinal series (vs. pigmentation absent or, when present, concentrated at the posterior margin of scales, forming a reticulate pattern). It is easily distinguished from all aforementioned species by having completely blue eyes in life (vs. green in M. clorophthalma, mostly green with some red in M. petymbuaba, lower portion blue and upper portion orange in M. lineomaculata, clear or red in M. cotinho, and clear, with a longitudinal dark stripe in M. plumbea). It differs also from M. clorophthalma, M. petymbuaba and M. plumbea by having 15-18 (rarely 18) branched anal-fin rays (vs. 18-24), from M. cotinho and M. lineomaculata by having a smaller caudal-peduncle spot, with only the base of the middle caudal-fin rays pigmented (vs. blotch larger, base of all caudal-fin rays pigmented in M. cotinho and M. lineomaculata, except the outermost unbranched rays in some specimens of M. lineomaculata) and by the absence of a light area preceding caudal peduncle spot (vs. presence of a light area preceding caudal-peduncle spot). It further differs from M. clorophthalma, M. petymbuaba and M. plumbea by the presence of a well-defined, round caudal-peduncle spot, that does not extend to the tip of the middle caudal-fin rays (vs. caudal-peduncle spot absent or poorly defined in M. clorophthalma and M. plumbea or caudal-peduncle spot confluent with longitudinal stripe on body, reaching the tip of middle caudal-fin rays in M. petymbuaba) (Ref. 109906).
The type locality of Moenkhausia parecis is a small small "terra-firme igarapé" (= highland creek) with little preserved riparian vegetation and surrounded by large plantation fields (mostly soy and corn), near Vilhena, Mato Grosso. This stream has 1.5-2.5 m width and and 0.3-0.8 m depth, clear water, swift currents, and a bottom composed of sand and dead leaves. M. parecis forms small groups of 10-15 individuals, swimming in midwater. It is syntopic with Ancistrus verecundus, Bryconops piracolina, Cetopsorhamdia sp. 3 (cf. Bockmann & Slobodian, 2013: 25), Corydoras sp., Hyphessobrycon lucenorum, Hyphessobrycon aff. melonostichos and Pyrrhulina sp. The stomach contents of four paratypes consisted of ants, scales, unidentified insect fragments, seeds, unidentified vegetal fragments and sediments (Ref. 109906).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Ohara, W.M. and M.M.F. Marinho, 2016. A new species of Moenkhausia Eigenmann (Characiformes; Characidae) from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Brazil. Neotrop. Ichthyol. 14(1):1-8. (Ref. 109906)
Human uses
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ(食中毒の名前)速度泳ぐ 型式カマOtoliths脳視覚
用具
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インターネットの情報源
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=0.01230 (0.00520 - 0.02913), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).