Identification

Dynodydd

Identifier

NRW_DS102004

Teitl Amgen

Alternative Title

• 2004 CCW / IECS Carmarthen Bay & Estuaries SAC LR.H transects Survey MRCCW31600000007
• 2004 CCW / IECS Carmarthen Bay and Estuaries SAC hydroid rockpool (LR.H) richness monitoring MRCCW30200000017
• Monitro Rhynglanwol: Pyllau Glan Mor Hydroidau yn ACA Bae Caerfyrddin ac Aberoedd (2004)

Laith Metadata

Metadata Language

English

Lineage

The study of hydroid-dominated rockpools on a low-lying area of intertidal proved very difficult due to the variable nature of the substratum and of the areas of standing water. This report provides a reference against which the future condition of the pools can be monitored and also identifies some of the more effective means of recording the habitat and associated species. Surveys were carried out by a team of 5 surveyors working three hours either side of low water. Extent and distribution: A grid format of sample points was surveyed along lines of eastings and northings over the area of rockpools. Sample points were taken every 100m along transects. At each sample point a GPS coordinate and photograph was taken. Physical characteristics (percent sand cover, percent cover of hard substratum and percent cover of standing water) and key species of flora and fauna were recorded within the 4m2 survey area. Species diversity: A GPS point and photograph were taken for each rockpool and the boundaries of distinct rockpools were mapped using a differential GPS. Characteristics of the pool (dimension, location, distinguishing features) were noted and species present recorded. Additional underboulder species were checked for by turning over at least ten rocks. A note was made of time spent compiling the species list.Teams consisted of 2 experienced intertidal surveyors each, providing reasonable confidence in taxonomic identification. GPS position is expected to be +/- 5 m. In 2012 the species data entered into Marine Recorder was re-structured to meet standard formats. Work carried out under contract to CALM. Hydroid rockpools have been identified at Whiteford Point during Phase 1 biotope surveys carried out by CCW in 2000. As part of the ongoing monitoring program for CCW, IECS were commissioned to carry out further monitoring at this key site.

Additional Information

Teams consisted of 2 experienced intertidal surveyors each, providing reasonable confidence in taxonomic identification. GPS position accuracy is expected to be +/- 5 m. In 2012 the species data entered into Marine Recorder was re-structured to meet standard formats. Work carried out under contract to CALM.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)

Dataset Reference Date (Publication)

2008-12-31

Extent

Extent

Hyd

Geographic Extent

SIR GAERFYRDDIN - CARMARTHENSHIRE

Hyd

Geographic Extent

Wales (WLS)

N

W

E

S

 

Distribution

Quality

Keywords

Spatial Reference System

Content

Constraints