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Myloplus nigrolineatus Ota, Machado, Andrade, Collins, Farias & Hrbek, 2020

Blackline myleus
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drawing shows typical species in Serrasalmidae.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Characiformes (Characins) > Serrasalmidae (Piranhas and pacus) > Myleinae
Etymology: Myloplus: Greek, mylos, -ou = grey mullet + Greek, plus, ploos = movement of a serpent;  nigrolineatus: Name from Latin 'nigro' for black, and 'lineatus' for lined, referring to the black, pigmented lateral line; an adjective..

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 底中水層性.

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

South America: Brazil.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 23.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 123127)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背的軟條 (總數) : 25 - 29; 臀鰭軟條: 33 - 38. This species is distinguished from its congeners by the following characters: highly concentrated dark chromatophores on the lateral-line scales, resulting in a markedly, dark pigmentation along the lateral line; it differs from arnoldi, lobatus, lucienae, planquettei, rhomboidalis, schomburgkii, zorroi by having 25-29 branched dorsal-fin rays (vs. 18-24); from ternetzi by the presence of a symphyseal pair of conical teeth posterior to the main row of dentary (vs. absence); from asterias, levis, rubripinnis, taphorni, tiete, torquatus, tumukumak by having 89-114 lateral line scales from supracleithrum to end of hypural plate (vs. 56-89) and 98-120 total perforated lateral line scales (vs. 59-97) (Ref. 123127).

生物學特性     字彙 (例如 epibenthic)

This species was reported to inhabit slow-flowing habitats such as backwaters and lake, feedng mainly on aquatic and terrestrial plants. Collection localities include clearwater rivers chemically characterized by a low concentration of suspended sediments, dissolved minerals and humic compounds and also from extremely acidic oligotrophic blackwaters. The type locality is also a blackwater system that has its headwaters in the Purus-Madeira interfluvium and like other blackwater rivers, is of low sediment load and low pH. These blackwater environments are reported to be inhospitable to certain species of fish (Ref. 123127).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Ota, R.P., V.N. Machado, M.C. Andrade, R.A. Collins, I.P. Farias and T. Hrbek, 2020. Integrative taxonomy reveals a new species of pacu (Characiformes: Serrasalmidae: Myloplus) from the Brazilian Amazon. Neotropical Ichthyology 18(1):e190112. (Ref. 123127)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02570 (0.01204 - 0.05486), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
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 (19 of 100).