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首页> 外文期刊>Lakes & Reservoirs >Response of phytoplankton to enrichment from cage fish farm waste in Alicura Reservoir (Patagonia, Argentina)
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Response of phytoplankton to enrichment from cage fish farm waste in Alicura Reservoir (Patagonia, Argentina)

机译：阿利库拉水库（阿根廷巴塔哥尼亚）的浮游植物对网箱养鱼场废物富集的响应

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摘要

Bioassays were undertaken in order to test the response of the natural late-summer inoculum of the phytoplankton of a Patagonian Reservoir to the additional nutrients generated by the production of salmon in cages. The results are discussed in relation to a 7 year study of the reservoir and the possible directions of trophic development. The main consequences of fish farming activities in Alicura are likely to lead to an increase in both nutrient concentrations, algal density and phytobiomass. The composition of the sediment close to the fish farm is affected. With regard to phytoplankton, we observed changes in species composition and temporal changes in their associations. The additional nutrient sources of fish food and faeces from salmonid production create an internal load that leads to a decrease in the N/P, Si/P and Ca/P ratios of the water column. The trophic level of Alicura Reservoir remains unchanged at present and the impact of fish farming operation remains localized.
机译：为了测试巴塔哥尼亚水库浮游植物的自然夏末接种物对笼养鲑鱼产生的其他营养素的反应，进行了生物测定。将对有关水库的7年研究以及营养开发的可能方向进行讨论。阿利库拉（Alicura）鱼类养殖活动的主要后果可能导致营养物浓度，藻类密度和植物生物量的增加。靠近养鱼场的沉积物成分受到影响。关于浮游植物，我们观察到了物种组成的变化及其关联的时间变化。鲑鱼生产产生的鱼类和粪便的其他营养素产生内部负荷，导致水柱的N / P，Si / P和Ca / P比降低。目前，阿里库拉水库的营养水平保持不变，养鱼活动的影响仍局限于局部。

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  • 来源
    《Lakes & Reservoirs》 |2001年第2期|151-158|共8页
  • 作者

    MÓnica M. Diaz; Pedro F. Temporetti; Fernando L. Pedrozo;

  • 作者单位

    Centro Regional Universitario Bariloche Universidad Nacional del Comahue Quintral 1250 8400 Bariloche Argentina;

    Centro Regional Universitario Bariloche Universidad Nacional del Comahue Quintral 1250 8400 Bariloche Argentina;

    Centro Regional Universitario Bariloche Universidad Nacional del Comahue Quintral 1250 8400 Bariloche Argentina;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    fish farm; Patagonia; phytoplankton; sediments;

    机译：养鱼场;巴塔哥尼亚;浮游植物;沉积物;

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