Microphytobenthic dynamics in a Wadden Sea intertidal flat – Part I: Seasonal and spatial variation of diatom communities in relation to macronutrient supply
作者： Bettina Scholz , Gerd Liebezeit
DOI: 10.1080/09670262.2012.663793
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摘要: The benthic diatoms composition of the surface sediments were sampled at two-weekly intervals from May 2008 to 2009 ten stations along a transect across intertidal zone Solthorn tidal flat (southern North Sea, Germany). Inorganic macronutrients (nitrate, nitrite, silicic acid and reactive dissolved phosphate) in overlying water showed distinct seasonal cycle, with high winter low summer values. diatom assemblages exhibited both spatial distribution patterns, showing distinctive differences species among summer, autumn, spring communities. Independent season, all structures characterized by dominance small epipelic such as Navicula phyllepta, N. digitoradiata, gregaria salinicola, successions secondary species, including several larger (e.g. Pleurosigma angulatum, Gyrosigma peisonis) pelagic (Plagiogramma Thalassionema). In addition, communities contai...
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