Intertidal Monitoring of Piddock Beds in Carmarthen Bay and Estuaries Special Areas of Conservation (SACs) 2009 dataset https://portal.medin.org.uk/portal/start.php?tpc=007_NRW_DS114942 The Habitats Directive establishes that the management of Special Areas of Conservation (SACs) should aim to achieve the favourable conservation status of habitat and species features listed within its Annex I and Annex II. This data was captured to support a number of reporting requirements. These were namely reporting on conservation status of the piddock feature; mapping the boundary of the clay and peat exposures; to record the density of the piddock holes; and evaluate the best sampling methods. Carmarthen Bay SAC was designated for five Annex I intertidal habitat features: Estuaries; Mudflats and sandflats not covered by seawater at low tide; Large shallow inlets and bays; Salicornia and other annuals colonising mud and sand; Atlantic salt meadows (Glauco- Puccinellietalia maritimae). Specific areas of interest include the peat and clay beds burrowed by piddocks and the monitoring aimed to map the boundary of the clay/peat exposures, record the density of the piddock holes and evaluate the best sampling methods. 20120630