Citation:

PANGAEA.981081 (dataset in review)

Name: Macroinvertebrate endofauna of the Wadden Sea 2019-2021
Creator: Heino O Fock
License: https://creativecommons.org/licenses/by/4.0/
Keywords: endofauna; EUNIS habitat types; North Sea; softbottom

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Abstract:

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.

Keyword(s):

endofauna; EUNIS habitat types; North Sea; softbottom

Related to:

Fock, Heino O (2025): Endofauna traits 49 species Wadden Sea [dataset]. Zenodo, https://doi.org/10.5281/zenodo.14801828

Fock, Heino O; Dammann, Robin; Mielck, Finn; Kraus, Gerd; Lauerburg, Rebecca A M; López González, Alfonso; Nielsen, Pernille; Nowicki, Margarethe; Pauli, Matthias; Temming, Axel (2023): Auswirkungen der Garnelenfischerei auf Habitate und Lebensgemeinschaften im Küstenmeer der Norddeutschen Bundesländer Schleswig- Holstein, Hamburg und Niedersachsen (CRANIMPACT). Thünen-Institut, Bundesforschungsinstitut für Ländliche Räume, Wald und Fischerei, Thünen Report 107, https://doi.org/10.3220/REP1681989003000

Fock, Heino O: Sediments of the Wadden Sea 2019-2021 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.980875

Funding:

European Commission (EC), grant/award no. SH-157-I.16 : CRANIMPACT

Coverage:

Median Latitude: 54.448360 * Median Longitude: 7.911876 * South-bound Latitude: 53.667233 * West-bound Longitude: 6.586833 * North-bound Latitude: 55.096583 * East-bound Longitude: 8.639700

Date/Time Start: 2019-07-15T09:14:00 * Date/Time End: 2021-10-25T09:48:29

Event(s):

CLUPEA20200902-track * Latitude Start: 53.718700 * Longitude Start: 6.586833 * Latitude End: 53.718800 * Longitude End: 6.690817 * Date/Time Start: 2020-09-02T08:58:05 * Date/Time End: 2020-09-02T11:15:40 * Location: North Sea * Campaign: * Basis:

CLUPEA20200903-track * Latitude Start: 53.668467 * Longitude Start: 6.693250 * Latitude End: 53.719833 * Longitude End: 6.786083 * Date/Time Start: 2020-09-03T07:29:25 * Date/Time End: 2020-09-03T09:19:30 * Location: North Sea * Campaign: * Basis:

CLUPEA20200907-track * Latitude Start: 53.692267 * Longitude Start: 7.153117 * Latitude End: 53.692100 * Longitude End: 7.153867 * Date/Time Start: 2020-09-07T09:23:00 * Date/Time End: 2020-09-07T10:08:45 * Location: North Sea * Campaign: * Basis:

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Fock, Heino O
2	DATE/TIME	Date/Time		Fock, Heino O		Geocode – UTC
3	Local Time	Local time		Fock, Heino O		Central European Summer Time (CEST)
4	LATITUDE	Latitude		Fock, Heino O		Geocode
5	LONGITUDE	Longitude		Fock, Heino O		Geocode
6	Index	Index		Fock, Heino O
7	Species	Species		Fock, Heino O		species name or superordinate taxonomic name (higher taxonomic level)
8	Site	Site		Fock, Heino O		area code as in station label
9	Vessel	Vessel		Fock, Heino O		FV: fishing vessel; RV: research vessel; FRV: fisheries research vessel; MPV: multi-purpose vessel
10	Station label	Station		Fock, Heino O		distinctive station identifier for stations of: (1) BACI-experiments composed of 'station no.'_'days before/after impact'_'area'_'treatment'_'year' and (2) gradient analysis composed of 'station no. (followed by no. of haul, if applicable)'_'GR (for gradient analysis)'_'area'_'fisheries intensity ('0' for unfished reference area, 'U' for unknown, i.e. to be derived fom VMS-data)'_'year'
11	Macroinvertebrates, endofaunal	Macroinvert endo	#/m²	Fock, Heino O		number of individuals per van Veen Grab sample 0.1 m²
12	Macroinvertebrates, endofaunal, biomass, ash free dry mass	Macroinvert endo afdm	g/m²	Fock, Heino O		per van Veen Grab sample 0.1 m²
13	Habitat	Habitat		Fock, Heino O	Habitat classification according to EUNIS (2022)	EUNIS level 5 habitat code, 2022
14	Species, unique identification	Species UID		Fock, Heino O
15	Gear	Gear		Fock, Heino O

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

44963 data points

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