2012
DOI: 10.1111/j.1529-8817.2012.01228.x
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Patterns of Distribution and Environmental Correlates of Macroalgal Assemblages and Sediment Chlorophyll A in Oregon Tidal Wetlands

Abstract: Algae have important functional roles in estuarine wetlands. We quantified differences in macroalgal abundance, composition and diversity, and sediment chl a and pheophytin a (pheo a) among three National Wetlands Inventory (NWI) emergent marsh classes in four Oregon estuaries spanning a range of riverine to marine dominance. We also assessed the strength of macroalgal-vascular plant associations and the degree to which environmental variables correlated with algal community metrics in marsh and woody wetlands… Show more

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Cited by 7 publications
(6 citation statements)
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“…At the end of the experiment, we quantified the microalgal flora (MAF) as mg chl a m −2 by scraping a known area of the tank wall, transferring the matrix to a GFF filter that was stored frozen until analysis. MAF chl a was analyzed as outlined by Janousek and Folger (2012) using a Trilogy fluorometer with the non-acidification module (Turner Designs, Sunnyvale, CA). We assume that the MAF community development is analogous to the epiphyte community and use the term to represent both benthic and epiphyte communities.…”
Section: Response Metricsmentioning
confidence: 99%
“…At the end of the experiment, we quantified the microalgal flora (MAF) as mg chl a m −2 by scraping a known area of the tank wall, transferring the matrix to a GFF filter that was stored frozen until analysis. MAF chl a was analyzed as outlined by Janousek and Folger (2012) using a Trilogy fluorometer with the non-acidification module (Turner Designs, Sunnyvale, CA). We assume that the MAF community development is analogous to the epiphyte community and use the term to represent both benthic and epiphyte communities.…”
Section: Response Metricsmentioning
confidence: 99%
“…The richness of macrophytes at inter-lagoonal level are also known to be influenced by salinity (e.g. Pérez-Ruzafa et al, 2011;Schubert et al, 2011;Janousek and Folger, 2012) generally showing higher values with higher salinity. Nevertheless, in pristine conditions the few species present have high ecological value, such as angiosperms (Sfriso et al, 2016, and references therein), and this makes the macrophytes a more stable BQE in eutrophic areas with high salinity variations, such as transitional areas.…”
Section: Discussionmentioning
confidence: 99%
“…While F. distichus has been observed living at the edge of marsh habitats in Northeastern Pacific estuaries, it is most prevalent on natural bedrock and armored shores, especially rip-rap (Dethier, 2010;Janousek & Folger, 2012). The prevalence of hard benthic substrate and wave energy are additional factors that may limit its distribution (Dethier, 2010;Janousek & Folger, 2012;Blanchette, 1997). My observations of F. distichus within Richardson Bay were limited to rocky substrate and it was absent when the substrate transitioned to silty substrate and marshes.…”
Section: Distributionmentioning
confidence: 99%
“…However, the natural prevalence and ecological importance of rockweed beds in the pre-development history of the SFB remains unknown. In some estuaries of the Northeastern Pacific, including SFB, rockweeds are important spawning habitat for Pacific herring (Janousek & Folger, 2012). They also provide habitat for a variety of small invertebrates that are prey for shore birds and fishes, including juvenile salmonids.…”
Section: Implications For Managementmentioning
confidence: 99%
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