Sublittoral Monitoring Trials of North Pen Llyn 1998
The data was captured in order to assess the suitability of the biotope classification monitoring method trialled. A measure biotope richness as an attribute of north Pen Llyn reefs, was measured over three surveys transects between July and August 1998. Surveyors were experienced in Phase 2 survey methodology and each record was carefully re-examined by an experienced operator to ensure that data were comparable to those assigned to biotopes in the national classification, therefore were correctly assigned.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS111142
- Teitl Amgen
-
- Treialon monitro isarforol o ogledd Pen Llŷn 1998
- 1998 CCW Llyn Peninsula sublittoral monitoring trials JNCCMNCR40000772
- Laith Metadata
- English
- Datganiad
-
Fixed line transects were used in the following ways. A shot line was deployed from which divers reeled-out a 50 m tape from a pole. The pole was designed to measure a fixed transect width and in combination with the fixed 50 m travelled, limit the area surveyed. It was decided that the direction of deployments for the diver based transects would be random and that species and abundances were to be recorded in-situ using standard protocol. Divers were instructed to record the most conspicuous and characterising features of the biotope as opposed to recording all macroscopic organisms. Three broad trial zones were identified and in each zone between 20 and 30 random sampling points were generated using a random number generating program. There is a high confidence in this dataset. Surveyors were experienced in Phase 2 survey methodology and each record was carefully re-examined by an experienced operator to ensure that data were comparable to those assigned to biotopes in the national classification, therefore were correctly assigned. This trial was a precursor to the Across Wales Diving Monitoring Project (see metadata entry 109743).
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2001-04-30
Ystod amser
- Dyddiad cychwyn
- 1998-07-31
- Dyddiad gorffen
- 1998-08-07
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
- benthic boundary layer
Maint Fertigol
- Gwerth lleiaf
- -0.2
- Gwerth uchaf
- -43
- System Gyfeirio Cydlynu Fertigol
- urn:ogc:def:datum:EPSG::5100 Sea Level depth is unadjusted and does not take into account tidal height
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
()
- Math
-
[A] The data collected are presented in the report and species, habitat and biotope data collected are also stored in Marine Recorder. [B] MNCR forms are also held in hardcopy.
-
Documents
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
Fixed line transects were used in the following ways. A shot line was deployed from which divers reeled-out a 50 m tape from a pole. The pole was designed to measure a fixed transect width and in combination with the fixed 50 m travelled, limit the area surveyed. It was decided that the direction of deployments for the diver based transects would be random and that species and abundances were to be recorded in-situ using standard protocol. Divers were instructed to record the most conspicuous and characterising features of the biotope as opposed to recording all macroscopic organisms. Three broad trial zones were identified and in each zone between 20 and 30 random sampling points were generated using a random number generating program. There is a high confidence in this dataset. Surveyors were experienced in Phase 2 survey methodology and each record was carefully re-examined by an experienced operator to ensure that data were comparable to those assigned to biotopes in the national classification, therefore were correctly assigned. This trial was a precursor to the Across Wales Diving Monitoring Project (see metadata entry 109743).
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
- marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR)
- monitoring (see specific types of monitoring eg. woodland monitoring)
- methodology
- survey methods (survey techniques) (survey) (surveying)
- trials
- biotopes
- Pen Llyn a'r Sarnau SAC
- reef
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
-
- Zoobenthos generic abundance
- Zoobenthos taxonomic abundance
- Zoobenthos taxonomy-related counts
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
The establishment of a programme of surveillance and monitoring for judging the condition of the features of Pen Llyn a'r Sarnau cSAC : 1. Progress to March 2001
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313131313432 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-12-09T12:32:56.315Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0