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" The Aquatic Trophic Ecology of Suisun Marsh, San Francisco Estuary, California, During Autumn in a Wet Year "
Schroeter, Robert E.; O'Rear, Teejay A.; Young, Matthew J.; Moyle, Peter B.
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AL
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| Record Number
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927717
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LA3w96c3dt
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| Language of Document
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English
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| Main Entry
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Schroeter, Robert E.; O'Rear, Teejay A.; Young, Matthew J.; Moyle, Peter B.
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| Title & Author
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The Aquatic Trophic Ecology of Suisun Marsh, San Francisco Estuary, California, During Autumn in a Wet Year [Article]\ Schroeter, Robert E.; O'Rear, Teejay A.; Young, Matthew J.; Moyle, Peter B.
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| Title of Periodical
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San Francisco Estuary and Watershed Science
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| Volume/ Issue Number
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13/3
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| Date
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2015
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| Abstract
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Using stable isotopes of carbon (δ<sup>13</sup>C) and nitrogen (δ<sup>15</sup>N) 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.
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