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首页> 外文期刊>Estuarine Coastal and Shelf Science >Moderate effect of damming the Romaine River (Quebec, Canada) on coastal plankton dynamics
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Moderate effect of damming the Romaine River (Quebec, Canada) on coastal plankton dynamics

机译：在罗曼河上筑坝（加拿大魁北克）对沿海浮游生物动力学的适度影响

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摘要

Rivers' damming disrupts the seasonal cycle of freshwater and nutrient inputs into the marine system, which can lead to changes in coastal plankton dynamics. Here we use a 3-D 5-km resolution coupled biophysical model and downscale it to a 400-m resolution to simulate the effect of damming the Romaine River in Quebec, Canada, which discharges on average 327 m(3) s(-1) of freshwater into the northern Gulf of St. Lawrence. Model results are compared with environmental data obtained from 2 buoys and in situ sampling near the Romaine River mouth during the 2013 spring summer period. Noteworthy improvements are made to the light attenuation parametrization and the trophic links of the biogeochemical model. The modelled variables reproduced most of the observed levels of variability. Comparisons between natural and regulated discharge simulation show differences in primary production and in the dominance of plankton groups in the Romaine River plume. The maximum increase in primary production when averaged over the inner part of Mingan Archipelago is 41%, but 7.1% when the primary production anomaly is averaged from March to September. (C) 2018 Elsevier Ltd. All rights reserved.
机译：河流的水坝扰乱了淡水和养分输入海洋系统的季节周期，这可能导致沿海浮游生物动力学发生变化。在这里，我们使用3-D，5 km分辨率的耦合生物物理模型，并将其缩减为400-m分辨率，以模拟对加拿大魁北克省的罗曼河的筑坝效果，该河的平均排放量为327 m（3）s（-1 ）淡水注入圣劳伦斯湾北部。在2013年春夏季期间，将模型结果与从2个浮标获得的环境数据进行了比较，并在长叶河河口附近进行了现场采样。在光衰减参数化和生物地球化学模型的营养链接方面进行了显着改进。建模变量再现了观察到的大多数可变性水平。比较自然排放和调节排放的模拟结果表明，罗曼河羽流的初级产量和浮游生物群的优势存在差异。将民安岛内部平均时的初级生产最大增幅为41％，而将3月至9月的初级生产异常平均为7.1％。 （C）2018 Elsevier Ltd.保留所有权利。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2018年第5期|29-43|共15页
  • 作者

    Senneville Simon; Schloss Irene R.; Drouin Simon St-Onge; Belanger Simon; Winkler Gesche; Dumont Dany; Johnston Patricia; St-Onge Isabelle;

  • 作者单位

    Univ Quebec Rimouski, Inst Sci Mer Rimouski & Quebec Ocean, 310 Allee Ursulines,CP 3300, Rimouski, PQ G5L 3A1, Canada;

    Univ Quebec Rimouski, Inst Sci Mer Rimouski & Quebec Ocean, 310 Allee Ursulines,CP 3300, Rimouski, PQ G5L 3A1, Canada;

    Univ Quebec Rimouski, Inst Sci Mer Rimouski & Quebec Ocean, 310 Allee Ursulines,CP 3300, Rimouski, PQ G5L 3A1, Canada;

    Univ Quebec Rimouski, Dept Biol Chim & Geog, Grp BOREAS & Quebec Ocean, 300 Allee Ursulines, Rimouski, PQ G5L 3A1, Canada;

    Univ Quebec Rimouski, Inst Sci Mer Rimouski & Quebec Ocean, 310 Allee Ursulines,CP 3300, Rimouski, PQ G5L 3A1, Canada;

    Univ Quebec Rimouski, Inst Sci Mer Rimouski & Quebec Ocean, 310 Allee Ursulines,CP 3300, Rimouski, PQ G5L 3A1, Canada;

    Hydroquebec, Innovat Equipement & Serv Partages, Unite Environm, 855 Rue Ste Catherine Est,11e Etage, Montreal, PQ H2L 4P5, Canada;

    Hydroquebec, Innovat Equipement & Serv Partages, Unite Environm, 855 Rue Ste Catherine Est,11e Etage, Montreal, PQ H2L 4P5, Canada;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biophysical modelling; River damming; Plankton; Light attenuation; Canada; Quebec; Mingan archipelago;

    机译：生物物理模型;河坝;浮游生物;光衰减;加拿大;魁北克;明安群岛;

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