Abstract
Seagrass above, below and total biomass, density and leaf area, length and width were quantified at a species level for 122 sites over three sampling periods in Moreton Bay, Australia. Core samples were collected in two regions: (1) a high water quality region with varying species assemblages and canopy complexity (98 sites); and (2) along a turbidity gradient in the bay (24 sites within four locations). Core samples were collected using a 15 cm diameter×20 cm long corer. Seagrass dry biomass per component was quantified per species present in each sample. A total of 220 biomass and density data records are included, 130 from the high water quality region and 90 from the turbidity gradient. These data provide a detailed assessment of biomass, density and leaf metrics per species sampled from Moreton Bay over 2012–2013. In future, these can be used as a baseline to assess seasonal and spatial variation within the bay, within the region and among regions.
Highlights
Background & SummaryThis data set was collected to quantify seagrass biomass, density and leaf metrics along a turbidity gradient and in an area of high water quality in Moreton Bay, during a total of three sampling periods over two years
Samples were collected from the Eastern Banks, where water quality is relatively high and spatially consistent; and in an area where water quality varies across a spatial gradient (Fig. 1)
One seagrass core sample was collected for the assessment of species composition, biomass, and seagrass morphometrics
Summary
This data set was collected to quantify seagrass biomass, density and leaf metrics along a turbidity gradient and in an area of high water quality in Moreton Bay, during a total of three sampling periods over two years. The data were used to analyse spatial and seasonal variation in seagrass morphometrics, determine seagrass canopy complexity, as an explanatory variable for seagrass sediment carbon content, and determine above and below ground seagrass carbon pools[1]. Seagrass biomass data from the high water quality area, the Eastern Banks, was integrated with seagrass cover and species map products generated from satellite imagery and coincident benthic field data. High resolution maps representing seagrass biophysical parameters (species, cover, and biomass as a function of species and cover) were generated[2,3,4]
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