Marine Algae Sites in Wales: Survey and Inventory of Important and Rare Algae
Several sites around Wales have been highlighted as being of interest for their marine seaweeds, either as species rich sites or for supporting rare, scarce or Biodiversity Action Plan (BAP) species. Many of these sites were designated in 2007 as provisional Important Plant Areas for Algae and all the sites are situated within marine Special Areas of Conservation (SACs) or Sites of Special Scientific Importance (SSSIs). This study was designed to provide an inventory of species at selected sites, which were highlighted as the result of previous surveys, and also to recommend methodologies for future monitoring.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS114573
- Alternative Title
-
- 2009 to 2011 CCW / MarineSeen Marine Algal Sites in Wales: Survey and Inventory Part 1 MRCCW31200000002
- Safleoedd algau mor yng Nghymru: Arolwg a Rhestr (algau prin)
- Metadata Language
- English
- Lineage
-
The sites selected included Rhosneiger, Llanbedrog Low water lagoon, Oyster Bank (Pwllheli), Glanllynnau, Sarn Badrig and Tremadog Bay, and West Angle Bay. - Rhosneigr: An algae specific species inventory was undertaken at rock pools at different levels across the shore. Viewpoint photography was used to illustrate the overall distribution of Ascophyllum nodosum and other fucoid seaweeds on the rocky shore area. A series of monitoring was also conducted on a population of Cystoseira tamariscifolia and other conspicuous species was undertaken, in an area colonised by Sargassum muticum by recording overall percentage cover. - Llanbedrog Low water lagoon: An algae specific species inventory was undertaken during a low spring tide. - The Oyster Bank (Pwllheli): A SCUBA diving survey was conducted for the Barbed Twig Weed (Anotrichium barbatum). An inventory of other species found at the site was made in situ and samples taken for laboratory examination. This survey was also used for a Phase 2 descriptive of the site. - Glanllynnau: SCUBA diving surveys were conducted in both sites to collect a species inventory of the sublittoral fringe and shallow subtidal area. - Sarn Badrig and Tremadog Bay: the work carried out related to quality control of ongoing long term monitoring of the subtidal algal communities. A total of 4 dives recording dives were undertaken and the cumulative number of species were recorded over a period of 1 hour for each dive. - West Angle Bay: An inventory of seaweeds was obtained from 7 habitats selected shore habitats.
- Additional Information
-
The project references work carried out by Brodie et al (2007) " Important Plant Areas for algae: a provisional review of sites and areas of importance for algae in the UK. Plantlife International" and CCW's Across Wales Reef Monitoring: Sarn Badrig and Tremadog Bay). It also contributes to CCW's marine intertidal and subtidal survey and monitoring program. The results of the Sarn Badrig and Tremadog Bay are reported in Holt R. Irving R. Stanwell-Smith D. CCW Cross Wales Reef Monitoring. Sarn Badrig and Tremadog Bay 2007 - 2011 (in draft).
- Dataset Reference Date (Publication)
- 2011-11-30
Temporal Extent
- Begin date
- 2010-07-21
- End date
- 2011-03-07
- Topic category
-
- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
-
benthic boundary layer
Vertical Extent
- Minimum value (metres)
- -5
- Maximum value (metres)
- 5
- Vertical CRS
Distribution
- Format Type and Description
-
-
Documents
Documents
()
- Specification
-
[A] Published summary report - electronic version (PDF and MS Word) [B] Raw data - MS Excel and Marine Recorder version 5 [MRCCW31200000002] [C] Map of locations - MapInfo tables [D] Photos - digital [E] Herbarium specimens
-
Documents
Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
The sites selected included Rhosneiger, Llanbedrog Low water lagoon, Oyster Bank (Pwllheli), Glanllynnau, Sarn Badrig and Tremadog Bay, and West Angle Bay. - Rhosneigr: An algae specific species inventory was undertaken at rock pools at different levels across the shore. Viewpoint photography was used to illustrate the overall distribution of Ascophyllum nodosum and other fucoid seaweeds on the rocky shore area. A series of monitoring was also conducted on a population of Cystoseira tamariscifolia and other conspicuous species was undertaken, in an area colonised by Sargassum muticum by recording overall percentage cover. - Llanbedrog Low water lagoon: An algae specific species inventory was undertaken during a low spring tide. - The Oyster Bank (Pwllheli): A SCUBA diving survey was conducted for the Barbed Twig Weed (Anotrichium barbatum). An inventory of other species found at the site was made in situ and samples taken for laboratory examination. This survey was also used for a Phase 2 descriptive of the site. - Glanllynnau: SCUBA diving surveys were conducted in both sites to collect a species inventory of the sublittoral fringe and shallow subtidal area. - Sarn Badrig and Tremadog Bay: the work carried out related to quality control of ongoing long term monitoring of the subtidal algal communities. A total of 4 dives recording dives were undertaken and the cumulative number of species were recorded over a period of 1 hour for each dive. - West Angle Bay: An inventory of seaweeds was obtained from 7 habitats selected shore habitats.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
-
- algae
- Important Plant Areas (IPAs)
- intertidal
- Subtidal
- monitoring programmes
- Rhosneigr
- Llanbedrog
- Glanllynnau
- Sarn Badrig Reef
- West Angle Bay
- SSSI (Sites of Special Scientific Interest)
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- anotrichium barbatum
- red alga
- non-native species
- herbarium
- seaweed inventory
- Oyster bank (Pwllheli)
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
-
- Macroalgae and seagrass taxonomy-related counts
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
-
Important plant areas for algae : a provisional review of sites and areas of importance for algae in the United Kingdom
- NRW Related Title
-
marine algal sites in Wales : survey and inventory
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW 2011 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source. Some images remain the IPR of Francis Bunker and should be acknowledged appropriately.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313134353733 XML
- Metadata Language
- English
- Parent Identifier
-
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:40:05.005Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0