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Subtidal macrobenthos monitoring in function of a foreshore suppletion at the Belgian coast, period 2013-2016
Citeerbaar als data publicatie
Aquatic environment and quality group; Flanders research institute for agriculture, fisheries and food (ILVO), Belgium; (2018): Subtidal macrobenthos monitoring in function of a foreshore suppletion at the Belgian coast, period 2013-2016. Marine Data Archive. https://doi.org/10.14284/342

Toegang tot data
Gearchiveerde data

Beschrijving
What ecological effects does a foreshore suppletion, and a beach suppletion, have on the marine ecosystem in the intertidal and shallow surf zone (<6 m depth)? The foreshore suppletion (400.000m³) was by means of an experimental set-up in the shallow coastal zone (-1 to -2m TAW) of Mariakerke. Beside it, a beach nourishment was conducted at Mariakerke (681243m³) and Middelkerke (968754m³). For the Mariakerke area, we collect biological and sedimentological samples in the impact area and in a control area (Bredene), before as after the suppletion, whereas for Middelkerke only the data after suppletion was part of the study. We monitor the marine ecosystem with a focus on the fauna within the sediment (macrofauna) and on the sediment (hyperbenthos, epi- and demersal fish fauna) in the intertidal zone and subtidal zone. In both studies, the subtidal area is the zone between the low water line and the 6m depth line and the intertdial area is the zone between low and high tide water line. meer

This dataset contain the macrobenthic data collected in the subtidal area. Macrobenthos are the biota that lives in the sediment and are retained on a sieve of 1mm. The sampling design for the monitoring is following the BACI-design (Before After Control Impact), with a control area with similar habitat characteristics outside the influence of the suppletion activity. There is sampled before the suppletion and in the following two years after suppletion. In this BACI-monitoring, the seasonal aspect is taken into account, by taking samples in spring (March) and autumn (September). In the subtidal area, three depth strata were determined to investigated the influence of the suppletion outside the suppletion area. Stratum a (between low water line and -2m TAW) is the area were the foreshore suppletion is executed. Stratum b and c are taken respectively the depth zones -3m to -4m and -5m to -6m TAW. The amount of sampling locations was determined by the client and determines 15 points for each sampling moment. That amount of samples was via a systematic random stratified strategy distributed over each stratum (5 in each strata). The samples were taken with a Van Veen grab (0.1m²). The samples were sieved alive on a 1mm sieve and then fixed with an 8% formaldehyde-seawater solution. The sieved material is stained with eosin. All biota were determined and counted to species level following a standardized taxonomic discrimination protocol. This to determine the determination level and if certain life stages (larvae, juveniles) need to be discriminated. The biomass is determined as wet weight. All macrobenthic samples were taken following the ISO16665:2005(E)) (“Water quality – Guidelines for quantitative sampling and sample processing of marine soft-bottom macrofauna”). Moreover, the analyses (identification, counts and biomass) were conform NBN EN ISO/IEC 17025 standard executed (cfr. BELAC nr. 315-TEST: date 28/04/2016, valid until 05/03/2020).

Scope
Thema's:
Biologie > Benthos
Kernwoorden:
Marien/Kust, Coastal defences, foreshore suppletion, ANE, België, Belgisch Continentaal Plat (BCP), EurOBIS calculated BBOX, Amphipoda, Annelida, Echinodermata, Mollusca

Geografische spreiding
ANE, België, Belgisch Continentaal Plat (BCP) [Marine Regions]
EurOBIS calculated BBOX Stations
Bounding Box
Coördinaten: MinLong: 2,3093; MinLat: 51,1882 - MaxLong: 2,969; MaxLat: 51,2692 [WGS84]

Spreiding in de tijd
2013 - 2016

Taxonomic coverage
Amphipoda [WoRMS]
Annelida [WoRMS]
Echinodermata [WoRMS]
Mollusca [WoRMS]

Parameters
Abundance of biological entity specified elsewhere per unit area of the bed [BODC]
Area of sample {sampled area} from the bed [BODC]
Count (in assayed sample) of biological entity specified elsewhere [BODC]
Development stage of biological entity specified elsewhere [BODC]
Grain-size median of particles in sediment by particle sizer [BODC]
Proportion of particles (<63um) in the sediment by particle sizer [BODC]
Proportion of particles (>500um) in the sediment by particle sizer [BODC]
Proportion of particles (125-150um) in the sediment by particle sizer [BODC]
Proportion of particles (250-500um) in the sediment by particle sizer [BODC]
Proportion of particles (63-125um) in the sediment by particle sizer [BODC]
Wet weight biomass (in assayed sample) of biological entity specified elsewhere [BODC]
Wet weight biomass of biological entity specified elsewhere per unit area of the bed [BODC]

Bijdrage door
Vlaamse overheid; Beleidsdomein Landbouw en Visserij; Instituut voor landbouw-, visserij en voedingsonderzoek (ILVO), meerdata leverancier
Vlaamse overheid; Beleidsdomein Landbouw en Visserij; Instituut voor landbouw- , visserij en voedingsonderzoek; Kenniseenheid: Dier; Aquatisch Milieu en Kwaliteit, meerdata creator

Gerelateerde datasets
Gepubliceerd in:
EurOBIS: European Ocean Biodiversity Information System, meer

Publicatie
Beschrijft deze dataset
Colson, L. et al. (2017). Ecologische monitoring in het kader van het Masterplan Kustveiligheid: Middelkerke (t1‐situatie): Eindrapport. ILVO Mededeling, 233. Instituut voor Landbouw-, Visserij- en Voedingsonderzoek: Merelbeke. 34 pp., meer
Colson, L. et al. (2016). Ecologische monitoring strand- en vooroever in functie van suppletie activiteiten: Eindrapport. ILVO Mededeling, 219. Instituut voor Landbouw- en Visserijonderzoek: Merelbeke. 109 pp., meer


Dataset status: Gestart
Data oorsprong: Onderzoek: veldonderzoek
Metadatarecord aangemaakt: 2017-06-29
Informatie laatst gewijzigd: 2017-06-29
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