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首页> 外文期刊>Limnology >The “mosco” (Hemiptera: Corixidae and Notonectidae) of Lake Cuitzeo, Mexico: an unusual inland water fishery
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The “mosco” (Hemiptera: Corixidae and Notonectidae) of Lake Cuitzeo, Mexico: an unusual inland water fishery

机译：“Mosco”（Mosco：Corixidae和Notectidae）的洛氏湖，墨西哥：内陆水渔业不寻常

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摘要

Lake Cuitzeo is Mexico’s second-largest lake (~?425?km2). The West Basin is shallow, seasonally astatic and alkaline, and it contains saltwater; it is in this extreme environment that there are fisheries maintained by local fishermen that are based on non-conventional products. These products include the “mosco” (hemipteran water boatmen and backswimmers: Corixidae and Notonectidae), which has become the most important “non-conventional resource” owing to high catch rates and its contribution to the local economy; its uses include its sale as pet food for songbirds and ornamental fishes. No other commercial fisheries of adult Hemiptera are known worldwide. This study records, for the first time, the species composition of the “mosco”, which was investigated through monthly sampling for twelve months at three sites in the West Basin. Seven species of aquatic Hemiptera were found: 5 species of the family Corixidae [Graptocorixa sp. (Hungerford), Corisella mercenaria (Say), Corisella edulis (Champion), Trichocorixa parvula (Champion) and Krizousacorixa azteca (Jaczewski)], and 2 species of the family Notonectidae [Buenoa scimitra (Bare) and Notonecta irrorata (Uhler)]. The seven species are new records for Lake Cuitzeo. Corixidae were more abundant than Notonectidae, at a ratio that varied from 2.3:1 to 34.2:1. Abundance peaks of up to 339?ind.?m?2 were recorded during the cold and dry season, from October/November until January, along with the highest salinity and lowest water temperatures. Graptocorixa sp. was the most abundant and widely distributed species in the West Basin, followed by Krizousacorixa azteca. The characteristics of the West Basin, such as its temporality and elevated salinity and pH, have favored the explosive development of this group, probably because these “extreme” conditions are unfavorable for competitors and predators.
机译：洛卡索湖是墨西哥第二大湖（〜？425？KM2）。西部盆地浅，季节性和碱性，含有盐水;在这个极端的环境中，有基于非传统产品的当地渔民维护的渔业。这些产品包括“MOSCO”（MOSCO“（Hemipteran Water Boatmen和Backswimmers：Corixidae和Notectidae），由于追随率高的率和对当地经济的贡献，这已成为最重要的”非传统资源“;它的用途包括作为歌曲食物的宠物食品和装饰鱼类。没有其他成年人血腥的商业渔业是全世界的知名。这项研究首次记录了“MOSCO”的物种组成，通过在西部盆地的三个地点进行了每月抽样来调查。发现了七种水生半翅目：5种Corixidae的家庭[格拉特科省SP。 （Hungerford），Corisella Mercenaria（比如说），Corisella Edulis（Chapion），Trichocorixa parvula（冠军）和克里佐斯卡郡Azteca（Jaczewski），以及2种Notectidae [Buenoa Scimitra（裸露）和Notonecta Irrorata（uhler）]。七种物种是苏特岛湖的新记录。 Corixidae比Notectidae更丰富，其比例从2.3：1到34.2：1变化。丰富的峰值高达339？Ind。在寒冷和干燥的季节记录了寒冷和旱季，从10月/ 11月到1月，以及最高的盐度和最低水温。格拉图科省SP。是西部盆地中最丰富和广泛分布的物种，其次是Krizousacorixa Azteca。西部盆地的特点，例如其暂时性和盐度和pH值，有利于该组的爆炸性发展，可能是因为这些“极端”条件对于竞争对手和掠夺者来说是不利的。

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  • 来源
    《Limnology》 |2020年第1期|共9页
  • 作者

    Sonia González-Santoyo; Javier Alcocer; Luis A. Oseguera;

  • 作者单位

    1grid.412205.00000 0000 8796 243XFacultad de BiologíaUniversidad Michoacana de San Nicolás de Hidalgo Ciudad UniversitariaMoreliaMichoacánMexico;

    2grid.9486.30000 0001 2159 0001Grupo de Investigación en Limnología Tropical FES IztacalaUniversidad Nacional Autónoma de MéxicoAv. de los Barrios No.1 Los Reyes Iztacala54090TlalnepantlaEstado de MéxicoMexico;

    2grid.9486.30000 0001 2159 0001Grupo de Investigación en Limnología Tropical FES IztacalaUniversidad Nacional Autónoma de MéxicoAv. de los Barrios No.1 Los Reyes Iztacala54090TlalnepantlaEstado de MéxicoMexico;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 湖泊、水库;淡水生物;
  • 关键词

    Corixidae; Notonectidae; Fishery; Ecology; Turbid lake;

    机译：Corixidae;notonectidae;渔业;生态;浑浊湖;

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