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首页> 外文期刊>San Francisco Estuary and Watershed Science >The Aquatic Trophic Ecology of Suisun Marsh, San Francisco Estuary, California, During Autumn in a Wet Year
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The Aquatic Trophic Ecology of Suisun Marsh, San Francisco Estuary, California, During Autumn in a Wet Year

机译：潮湿年份秋季，加利福尼亚州旧金山河口Suisun沼泽的水生营养生态

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doi:?http://dx.doi.org/10.15447/sfews.v13iss3art6 Using stable isotopes of carbon (δ13C) and nitrogen (δ15N) and mixing models, we investigated the trophic levels and carbon sources of invertebrates and fishes of a large tidal marsh in the San Francisco Estuary. Our goal was to better understand an estuarine food web comprised of native and alien species. We found the following: (1) the food web was based largely on carbon from phytoplankton and emergent-aquatic and terrestrial vegetation, but carbon from submerged aquatic vegetation and phytobenthos was also used; (2) alien species increased the complexity of the food web by altering carbon-flow pathways and by occupying trophic positions different from native species; and (3) most consumers were dietary generalists.
机译：doi：？http：//dx.doi.org/10.15447/sfews.v13iss3art6使用稳定的碳（δ13C）和氮（δ15N）同位素以及混合模型，我们研究了大型无脊椎动物和鱼类的营养水平和碳源旧金山河口的潮汐沼泽。我们的目标是更好地了解由本地和外来物种组成的河口食物网。我们发现以下情况：（1）食物网主要基于浮游植物，急生水生和陆生植物的碳，但也使用了淹没水生植物和植物底栖动物的碳; （2）外来物种通过改变碳流动路径和占据与本土物种不同的营养位置而增加了食物网的复杂性; （3）大多数消费者是饮食专家。

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