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Alteration of microbial community composition and changes in decomposition associated with an invasive intertidal macrophyte Hahn, D.R. (2003). Alteration of microbial community composition and changes in decomposition associated with an invasive intertidal macrophyte. Biological Invasions 5(1-2): 45-51. https://dx.doi.org/10.1023/A:1024002908143 In: Biological Invasions. Springer: London. ISSN 1387-3547; e-ISSN 1573-1464 Ook verschenen in: Pederson, J. (2003). Marine bioinvasions: patterns, processes and perspectives. Kluwer Academic: Dordrecht. ISBN 1-4020-1449-X. 143 pp., meer

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Beschikbaar in	Auteur
VLIZ: Open access 218779 [ download pdf ]

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Trefwoorden

Chemical reactions > Degradation Flora > Weeds > Marine organisms > Seaweeds > Sea grass INE, USA, Washington, Padilla Bay Invasions Zostera japonica Ascherson & Graebner, 1907 [WoRMS]; Zostera marina Linnaeus, 1753 [WoRMS] Padilla Bay [Marine Regions] Marien/Kust

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Auteur		Top
Hahn, D.R.

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Abstract

Data demonstrating the effects of biological invaders on microbial communities and microbial processes are scarce, especially in marine environments. Research was conducted at Padilla Bay, Washington, to examine the effect that an invasive intertidal eelgrass, Zostera japonica Aschers & Graebn, has on rates of decomposition, microbial community composition, and the possible implications for associated ecosystem processes in this estuarine environment. A series of observational and experimental studies were conducted in beds of Z. japonica, beds of its native congener, Zostera marina, and mixed eelgrass beds. These studies assessed decomposition of invasive and native eelgrass, enumerated bacterial abundance, and examined sole source carbon usage (SSCU) by microbial assemblages. Z. japonica decomposed more rapidly than its native congener throughout the study period although rates of decomposition were variable. Microbial abundance did not differ among different vegetation compositions although differences in SSCU by microbial assemblages were detected among beds of invasive, native, and mixed eelgrass. These results indicate that this abundant invasive species can accelerate rates of decomposition and alter the associative decomposer community, which may lead to higher carbon and nutrient turnover within Padilla Bay.

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