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EUNIS-translated Indicative biotopes for the Gwynt y Mor study area determined from the analysis of grab samples from the site between 2002-2004. Data originally in Classification system of UK and Ireland, translated to EUNIS at JNCC, 2013. Original non-eunis data retreived from the Crown Estate http://www.marinedataexchange.co.uk/ItemDetails.aspx?id=10609
A Natural England commissioned intertidal survey conducted by the Centre for Marine and Coastal Studies (CMACS). The aim of the survey was to provide a baseline dataset for future management and condition monitoring of the intertidal interest features in the Dee Estuary. Phase I Biotope Mapping including sediment cores for fauna and Particle Size Analysis.
A Natural England commissoined verification survey of both intertidal sediments and intertidal rocky reef within the Cumbria Coast rMCZ. Phase I Biotope mapping was carried out across the rMCZ for broad scale habitats. Phase II infaunal sediment sampling was carried out to provide information on the benthic infaunal assemblages and particle size distribution of the study sites by means of core sampling. Sediment surface scrapes were obtained for heavy metals and organic contaminants analysis. Phase II quantitative survey of intertidal rocky reefs comprised of a quadrat survey with percentage cover of species present within each quadrat being recorded. The data was used to produce a EUNIS Level 3 boradscale habitat map of the Cumbria Coast rMCZ. Aerial imagery and OS mapping was digitised to produce baseline maps of biotope boundaries. The maps were annotated in the field to identify biotopes and boundaries as well as significant features. In addition, intertidal sediment cores were taken at 16 stations (0.01m2 cores 3 replicates at each station) distributed throughout the Cumbria Coast rMCZ at the low, mid and high shore, in order to assess the benthic species present, along with an additional sample for Particle Size Analysis. Samples were sieved over a 0.5mm sieve. Sediment scrape samples were also taken at 4 stations at the midshore for Tributyl tin, heavy metal and organic contaminant analysis. The Phase II quantitative survey of intertidal rocky reefs comprised of 9 quadrat sites per transect with 3 replicate quadrats at each low, mid and upper shore zone or the main biotope present. Percentage cover of species present within each 0.25m2 quadrat was recorded. The methods used for data collection and processing followed protocols and standards for biotope mapping and sampling. MEDIN Data Guideline for sediment sampling by grab or core for benthos.
Biogenic horse mussel (Modiolus Modiolus) reef is an important feature of the Pen Llyn a'r Sarnau SAC. The reef has high biodiversity and is vulnerable to anthropogenic activities, such as benthic fishing. The mussel reef forms an undulating surface that is significantly different to the surrounding seabed and therefore acoustic monitoring methods can be used to monitor changes in extent and identity areas of potential damage. Work is carried out on the north Llyn horse mussel reef in Pen Llyn a'r Sarnau jointly by CCW and University of Wales Bangor. Project is carried out in conjunction with the Across Wales drop-down video project.
A Natural England commissioned survey conducted by the Institute of Estuarine and Coastal Studies (IECS). The survey aimed to standardise fauna, and the information for mud/sand habitats and communities of the Dee Esturay SAC, in order to act as a baseline for future management and condition monitoring. Phase I survey of the intertidal zone, mud/sand and rock habitats resulting in the production of detailed biotope maps.
As part of the HABMAP project surveys were carried out in 5 areas in the summer of 2005. Survey work carried out in Caernarfon Bay showed this area was very diverse in terms of both its seabed features and benthic communities. The location of a well-documented horse mussel (Modiolus modiolus) reef was clearly identified from multibeam bathymetry and backscatter data, and was sampled using video, SPI and grab samples. The area was rich in both infauna and epifauna, with a variety of different biotopes being recorded. Other features of the Caernarfon Bay survey area included an area of cobble and boulder ridges in the southwest with associated tide-swept epifaunal communities, and an area of muddy sediments in shallower waters to the east, with patches of stable cobbles that upported a rich seaweed and epifaunal community.
A broadscale habitat layer was produced by analysing and interpreting the acoustic and ground truth data collected during a JNCC commissioned RV Corystes survey undertaken by the AFBI (Agri-Food and Biosciences) between 16/02/12 and 29/02/12. PSA data were used to assign each sample a EUNIS class which then informed the semi-automated process of map production using object-based image analysis (OBIA). Statistical modelling was combined with the OBIA image analysis to aid production of the final broadscale habitat map.
Broad scale biotope types along Wexford coast mapped out to the 5 km limit
This dataset is a map of the saltmarsh habitats in the Duddon Estuary
Broad scale biotope types along Wicklow coast mapped out to the 5 km limit