Dataset 622
LTER INBO Lower Seascheldt Invertebrates 1999-2005
Realm: Freshwater
Climate: Temperate
Biome: Small river ecosystems Central latitude: 51.294950
Central longitude: 4.297737
Duration: 3 years, from 1999 to 2005
Climate: Temperate
Biome: Small river ecosystems Central latitude: 51.294950
Central longitude: 4.297737
Duration: 3 years, from 1999 to 2005
406 records
19 distinct species
Across the time series Hediste diversicolor is the most frequently occurring speciesMethods
Data manager notes: Due to the contributor notes about a methodology change, this dataset has been split into two. Density units are given in individuals per sq m. From 1999 onwards, the macrobenthos (bottom-dwelling animals larger than 500µm in this case) of the soft-bottom substrate of the Zeeschelde Estuary (= tidal part of the Flemish upstream part of the Scheldt Estuary, with the downstream section of the estuary lying in The Netherlands) underwent structural spatial sampling. The sampling strategy evolved through the years from sampling sites along a limited number of fixed transect with sampling points once every three years (1999, 2002,2005 in dataset) to a yearly random stratified design from 2008 onwards. The Water Framework Directive water body act as strata in the alongshore direction (comprising a strong salinity gradient), whereas a number of physiotopes (physical habitats”; three intertidal ones, delimited by their flooding duration and depth) defined units in the cross-shore dimension (high, mid and lower tidal flat - data pooled to tidal flat fysiotope). This means that sampling effort and spatial covering was not constant throughout the study period. Therefore computing summary values must be done with care (averaging above summing up to yearly vallues / or restrict to comparable sets of sampling points). Samples are taken with a diameter of 4.5 cm up to 15cm depth in tidal flats. Taxa are determined up to species level if possible (Oligochaeta counted as one taxon)Citation(s)
.
In (Eds.),
(p. ).
:
.
,
(),
.
