Identification

Identifier

NRW_DS110023

Alternative Title

• 2001 CCW cSAC sandbanks survey Zooplankton analysis (MRCCW30000000037)
• 2001CCW/ NMGW Macrofaunal Survey of Welsh Sandbanks (MRCCW30000000008)
• 2001 CCW/SOS Welsh sandbanks fish and epibenthos survey (MRCCW30000000038)

Metadata Language

English

Lineage

A total of 11 different sandbanks were chosen as potential seabed features that typically represent sandbank habitats as defined by the interpretation manual of European Habitats (EUR15/2) of which 10 were sampled in the present study (extensions of shallow coastal sediments adjacent to the coastline, distinct sandbanks that are distinct from the surrounding seabed features and sediments). Hyperbenthic, infaunal, epifaunal and fish samples were collected at each site from the RV Prince Madog (34.9 m l.o.a.). At each site, five replicate tows were made with a 2 m beam trawl fitted with a chain matrix and 1 cm square meshed net with a 1 mm codend liner. The 2 m beam trawl was towed at a speed of 1.5 to 2 knots for a standard duration of 5 minutes. At each site, sediment samples were taken using a Van Veen grab and immediately frozen on board. In the laboratory, particle size fractions, percentage organic matter and calcium carbonate were determined and the data catagorised into the following sediment fractions: mud, muddy sand, sand, silt, carbonates and organic matter. At three sites (Devil's Ridge, west of Newquay and Bastram Shoal) plaice Pleuronectes platessa were collected for the purpose of dietary analyses.

Additional Information

Kaiser MJ. 2004. Sandbank survey: fish stomach content, fish epibenthic survey data analysis. Countryside Council for Wales Science Report No. 610. Bangor

Dataset Reference Date (Publication)

2004-01-31

 

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