Transport and digestive alteration of uniformly <SUP>13</SUP>C-labeled diatoms in mudflat sediments

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ID: 302732
2002
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Abstract
Uniformly 13 C-labeled diatoms were used to elucidate the effect deposit feeders have on the distribution and composition of phytodetritus within the seabed. Mudflat infauna contained in microcosms reacted quickly to the emplacement of labeled diatoms onto the sediment-water interface by moving the phytodetritus nonlocally during feeding and hoeing activities. Although redistribution of tracer was rapid, not all infauna exposed to the tracer ingested it. Using four species of deposit-feeding annelids that had ingested the 13 C-labeled phytodetritus during the microcosm experiment, molecular-level, digestive alterations of 13 C-labeled diatoms were documented. Fecal material produced by the deposit feeders had 13 C amino acid signatures distinctly different from that of the diatom. Alterations in the amino acid composition of the diatom were correlated to the gut morphology and digestive physiology of the polychaete taxa.
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openalex_W2019004659 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Carrie Thomas, Neal E. Blair
Journal journal of marine research
Year 2002
DOI
10.1357/002224002762231205
URL
https://doi.org/10.1357/002224002762231205
Keywords Keywords not found

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