Epibenthos and demersal fish monitoring in function of dredge disposal monitoring

Epibenthos and demersal fish monitoring in function of aggregate extraction

Epibenthos and demersal fish monitoring at long-term monitoring stations Trawl samples were taken within the disposal site and outside the disposal site (close neigbourhood) (classic controle/impact design). Sampling activities were in February-March and in September/October. A 8 meter shrimp beam trawl (22 mm mesh in the cod end) equipped with a bolder chain was used.The net was towed during 30 or 15 minutes at an average speed of 4 knots.

Data on abundances of <i>Agonus cataphractus</i> and stomach contents with special attention to the presence of <i>Crangon crangon</i>. The data were digitized by VLIZ from the original report: Gabriels, I. (1977). Quantitatieve studie van de predatie-mortaliteit van Crangon crangon (L.) door Agonus cataphractus (L.). BSc Thesis. Free University of Brussels: Brussel. 91 pp.

Seasonal fluctuations in abundance and biomass of the <i>Macropipus holsatus</i> population along the Belgian coast. The data were digitized by VLIZ from the original report: Borremans, C. (1982). Populatiedynamiek van Macropipus holsatus (Fabr.) voor de Belgische kust. MSc Thesis. VUB: Brussel. 62 pp.

Overview of monthly epibenthic fauna in a marine and brackish zone along the salinity gradient of the Westerschelde in 1990. The data were digitized by VLIZ from the original report: Puturuhu, L. (1994). Density, biomass and feeding consumption of some demersal fish along salinity gradient in the Westerschelde area. MSc Thesis. RUG: Gent. IV, 44 pp.

What ecological effects does a foreshore suppletion, and a beach suppletion, have on the marine ecosystem in the intertidal and shallow surf zone (&lt;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.

Epibenthos and demersal fish monitoring in function of wind energy development. Trawl samples were taken within the wind farms (between the turbine rows, just outside the edges of the concessions and at reference stations

This dataset contains individual counts of fish species sampled in the seagrass beds and mangrove creeks of Gazi Bay (10 locations, 41 species) on 17 and 19 July 1996. Sampling was carried out using a beam trawl (fine mesh: 6mm width). The data were digitized by VLIZ from the original report: Dethier, K. (1997). Epibenthische visgemeenschappen en diversiteit in een tropische baai (Gazi Bay, Kenya)= Epibenthic fish communities and diversity in a tropical bay (Gazi Bay, Kenya). Thesis. Universiteit Gent: Gent. 16 pp.

Abiotic and biotic parameters measured in a field experiment to investigate the effect of predation by epibenthos on infaunal macrobenthos of a <i>Ceriops tagal</i> tropical mangrove monthly sampled between August 1992 and December 1992. The data were digitized by VLIZ from the original report: Garcia de Camargo, M. (1995). Interactions between macrobenthic epifauna and infauna in a Ceriops tagal mangrove at Gazi Bay, Kenya. MSc Thesis. Vrije Universiteit Brussel: Brussel. 64 pp.