Description: The CRANIMPACT project investigated the effects of beam trawl shrimp fisheries on 2 habitat types in the sublittoral of the Wadden Sea National Parks of the northern German states. Two complementary approaches were used to investigate the short-term effects following an experimental fishing event and the chronic changes caused by sustained fishing pressure of varying intensity. In the experimental approach, the short-term, small-scale effects on endo- and epifauna after experimental fishing and their effect duration were investigated on a total of 4 study sites (A, B, B2 in the tidal flat system of the Sylt backshore tidal flat; C in the tidal flat system near Norderney). The experiments were conducted as before-after-control-impact studies (BACI) exclusively in habitat type fine and medium sands with ripple structure (a sufficiently large lanice field could not be sampled). The large-scale effects of fishing were determined along gradients of fishing intensity in the Wadden Sea of Lower Saxony, Schleswig-Holstein and Denmark. For this purpose, among other things, methods were developed to represent small-scale differences in fishing effort using satellite data in tidal flat systems. Gradient analysis (GA) was carried out on fine and medium sands with ripple structure as well as on fields with colonization of the tree tube worm Lanice conchilega for the endofauna alone. All surveys were conducted in the sublittoral. A total of 427 endofauna samples were examined from 2019, 2020, and 2021.
Global identifier:
Doi(
"10.1594/PANGAEA.980875",
)
Measurements {
domain: Unspecified,
station: None,
measured_variables: [
"Event label",
"Station label",
"DATE/TIME",
"Local Time",
"LATITUDE",
"LONGITUDE",
"Location",
"Vessel",
"Leg Number",
"Device type",
"Length",
"Sample comment",
"Action",
"Position",
"Comment",
"Sample type",
"Texture",
"Grain size, mean",
"Grain size description",
"Mode, grain size",
"Sorting",
"Skewness",
"Kurtosis",
"Median, grain size",
"Sample, dry mass",
"Subsample, dry mass",
"Subsample, dry mass",
"Gravel",
"Sand",
"Size fraction < 0.063 mm, mud, silt+clay",
"Size fraction 64-32 mm, very coarse gravel, pebble",
"Size fraction 32-16 mm, coarse gravel, pebble",
"Size fraction 16-8 mm, medium gravel",
"Size fraction 8.0-4.0 mm, fine gravel",
"Size fraction 4.0-2.0 mm, very fine gravel, granule",
"Size fraction 2.000-1.000 mm, (-1.0)-0.0 phi, very coarse sand",
"Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand",
"Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand",
"Size fraction 0.250-0.125 mm, 2.0-3.0 phi, fine sand",
"Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand",
"Size fraction 0.063-0.031 mm, very coarse silt",
"Size fraction 0.031-0.016 mm, coarse silt",
"Size fraction 0.016-0.008 mm, 6.0-7.0 phi, medium silt",
"Size fraction 0.008-0.004 mm, 7.0-8.0 phi, fine silt",
"Size fraction 0.004-0.002 mm, 8.0-9.0 phi, very fine silt",
"Size fraction < 0.002 mm, clay",
],
methods: [
"Analysed according to Folk and Ward (1957)",
"Analysed according to Folk and Ward (1957)",
"Analysed according to Folk and Ward (1957)",
"Analysed according to Folk and Ward (1957)",
"Analysed according to Folk and Ward (1957)",
],
}
Dataset
Origins: /Wissenschaft/PANGAEA
Tags: Schleswig-Holstein ? Wohnung ? Sand ? Baum ? Satellitendaten ? Wattenmeer ? Würmer ? Geografische Koordinaten ? U-Bahn ? Niedersächsisches Wattenmeer ? Nationalpark ? Standortwahl ? Studie ? Sediment ? Infauna ? Fischereiaufwand ? Fischerei ? Biotoptyp ? Nordsee ? EUNIS habitat types ? softbottom ?
Region: North Sea
Bounding boxes: 6.586833333333333° .. 8.6397° x 53.667233333333336° .. 55.096583333333335°
License: cc-by/4.0
Data access requires registration: click here for further informationLanguage: Englisch/English
Modified: 2025-04-28
Time ranges: 2019-07-15 - 2021-10-25
Accessed 1 times.