Gwely'r mor a'r glannau a ddinoethir gan y llanw yn y Fenai (2002)
As part of the UK's commitment to the 1992 UNEP Convention on Biological Diversity there have been a number of coordinated initiatives to identify those habitats which may be under threat in the UK, and to establish plans to reduce those threats and thereby maintain biodiversity.
The UK Biodiversity Action Plan (BAP) is now one of the main focuses of that work. It provides detailed proposals for a number of species, species groups and habitats requiring urgent conservation action.
In addition to this the Habitats Directive (1992) requires the establishment of a European network of important high-quality conservation sites, Special Areas of Conservation (SACs). The Habitats Directive identifies Reefs as a major category of habitats that should be considered for inclusion in SACs. Tidal rapids not only forms part of the reef environments classification but is also highlighted as an important site under the UKBAP habitats list. Tidal rapids is used to describe a broad range of high energy environments including deep tidal streams and tide-swept habitats. JNCC’s Marine Nature Conservation Review (MNCR) defined rapids as ‘strong tidal streams resulting from a constriction in the coastline at the entrance to, or within the length of, an enclosed body of water such as a sea loch. Depth is usually shallower than five metres.
The data collected during this survey is being used to help define the conservation objectives for the cSAC reef features in Wales and to inform management of this feature. One of the actions listed in the Habitat Action Plan for tidal rapids is to, complete survey and recording of the extent, quality and composition of the habitats and communities of tidal rapids.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS87128
- Teitl Amgen
-
- 2002 CCW/CALM Menai Strait tidally exposed seabed and shores (MRCCW80000000002)
- Laith Metadata
- English
- Datganiad
-
Survey methods were based on the standard Marine Nature Conservation Review (MNCR) techniques using in-situ identification of conspicuous species and description of habitat and community characteristics. Subtidal and intertidal components of the fieldwork were carried out separately. Survey data was recorded immediately on standard MNCR recording forms.
Confidence in this dataset is high because it was undertaken by experienced surveyors.
Previous surveys have been undertaken in this areas, by various parties and include some detail of the 'Tidal Rapids' and reef systems. These include surveys carried out by former Countryside Council for Wales (CCW), JNCC, Seasearch and various others.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2004-03-05
Ystod amser
- Dyddiad cychwyn
- 2002-08-01
- Dyddiad gorffen
- 2002-09-10
- Categori pwnc
-
- Biota
- Oceans
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
- soil and sediment boundary layer
Maint Fertigol
- Gwerth lleiaf
- -28
- Gwerth uchaf
- 5
- System Gyfeirio Cydlynu Fertigol
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Database
(
Marine Recorder Online - Version 2.09.02
)
- Math
-
Marine Recorder
-
Database
(
Marine Recorder Online - Version 2.09.02
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
Survey methods were based on the standard Marine Nature Conservation Review (MNCR) techniques using in-situ identification of conspicuous species and description of habitat and community characteristics. Subtidal and intertidal components of the fieldwork were carried out separately. Survey data was recorded immediately on standard MNCR recording forms.
Confidence in this dataset is high because it was undertaken by experienced surveyors.
Previous surveys have been undertaken in this areas, by various parties and include some detail of the 'Tidal Rapids' and reef systems. These include surveys carried out by former Countryside Council for Wales (CCW), JNCC, Seasearch and various others.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- Menai Straits MNR
- Marine Recorder
- seabeds (sea beds)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2026-08-27
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Survey of North Wales and Pembrokeshire tide influenced communities
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
Part of this dataset is sensitive and restricted. The sensitive data is as follows; Ostrea edulis. Sensitive data must be kept confidential; general release, is not permitted due to risk of harm to the environment or third parties. Sensitive data may only be released under a CCW Restricted Release Licence. Requests should be referred to CCW's Access to Information Officer. Data may be released freely if the sensitive records are removed in advance, or shown only at a coarser scale.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CCGC/CCW 2004. Recipients may only re-use sensitive data in strict confidence under the terms of a CCW RPSI Licence. No publication or dissemination is permitted, except if sensitive records are removed in advance, or shown only at a coarser scale.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Math o Drwydded
- Cyfyngiadau eraill
- NRW Conditional
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-3837313238 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Survey of North Wales and Pembrokeshire tide influenced communities
NRW_DS86828
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-10-19T08:31:31.214Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0