Identification

Dynodydd

Identifier

NRW_DS102004

Teitl Amgen

Alternative Title

• 2004 CCW / IECS Carmarthen Bay and Estuaries SAC hydroid rockpool (LR.H) richness monitoring (MRCCW30200000017)

Laith Metadata

Metadata Language

English

Lineage

Hydroid rockpools at Whiteford Point were first identified during CCW Phase 1 biotope surveys undertaken in 2000. To support ongoing SAC monitoring, IECS was commissioned by CCW to undertake detailed species richness monitoring of individual hydroid-dominated rockpools during 2004.

Individual rockpools were photographed and recorded using differential GPS, and the boundaries of distinct pools were mapped where possible. Pool characteristics, including dimensions, location and distinguishing features, were documented. Species inventories were compiled for each pool and additional under-boulder searches were undertaken by turning a minimum of ten rocks within each survey area to record cryptic species not immediately visible. A record was also kept of the time taken to compile each species list.

Survey teams consisted of experienced intertidal surveyors, providing a high degree of confidence in taxonomic identification. The study highlighted the difficulties of surveying hydroid-dominated rockpools on a dynamic and variable intertidal substratum but provided an important baseline dataset and reference point for future assessments of ecological condition. GPS positional accuracy was estimated at approximately ±5 metres. Work was undertaken under contract to CALM. In 2012, species records held within Marine Recorder were restructured to conform to standardised recording formats.

Additional Information

Sanderson, Boyes, Mazik (2004) Intertidal Monitoring of Hydroid-dominated rockpools in Carmarthen Bay and Estuaries SAC. CCW Marine Monitoring report No 41.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)

Dataset Reference Date (Publication)

2008-12-31

 

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