Table 4 Description of columns in the file ‘biota.csv’ that contain abundances and biomass measurements of the species found in the samples.

From: SIBES: Long-term and large-scale monitoring of intertidal macrozoobenthos and sediment in the Dutch Wadden Sea

BIOTA.CSV

column

description

sample_id

unique identifier for the sample, which corresponds with the column ‘sample_id’ in the file SAMPLES.csv

sibes_id

taxonomic identifier, which corresponds with the column ‘sibes_id’ in SPECIES.csv

abundance_m2

number of individuals per square meter

afdm_m2

ash free dry mass (g) per square meter

  1. Note, when a species was absent in a sample, the row is not available. Zero values can be obtained by combining the files ‘biota.csv’ and ‘samples.csv’ by the values in the column ‘sample_id’ (see R-package online). The values ‘abundances_m2’ and ‘afdm_m2’ are standardized for differences in sampled surface area and subsampling. For each species or species group, measurements of individual specimens were grouped per ‘sample_id’ by summation.
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