© OpenStreetMap contributors
Presentation of data and analysis of patterns of water turbidity in the Menai Strait between 1961 and 1999 as well as depth distribution patterns of macroalgae (Telegraph Cable transect) at intervals from 1956 to 1999. Analysis of any relationship between the depth distribution of macroalgae and water turbidity patterns. The purpose of this data capture was to ascertain changes in turbidity and depth distribution patterns of macroalgae.
Natural Resources Wales (NRW)
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
| Other details | ||
| Internal code | Internally assigned metadata identifier | 1877 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Water Turbidity Data and Macroalgal Depth Distributions on a Transect in the Menai Strait |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Data am gymylogrwydd dwr a dosbarthiadau dyfnder macroalgaidd ar drawslun yn afon Menai |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 4f4c4942-4343-5764-6473-313039393833 |
| Resource Identifier | This is the code assigned by the data owner. | 109983 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 1956-01-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2001-12-31 |
| Vertical extent (min) | A positive or negative decimal number, for example, the shallowest depth recorded if subtidal, or, if intertidal, the lowest point recorded. | 0.02 |
| Vertical extent (max) | A positive or negative decimal number, for example, the deepest depth recorded if subtidal, or, if intertidal, the highest point recorded. | 14.39 |
| Vertical extent reference | This descibes the vertical coordinate reference system as referred to in the EPSG register of geodetic parameters. (epsg-registry.org) | urn:ogc:def:crs:EPSG:: |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Presentation of data and analysis of patterns of water turbidity in the Menai Strait between 1961 and 1999 as well as depth distribution patterns of macroalgae (Telegraph Cable transect) at intervals from 1956 to 1999. Analysis of any relationship between the depth distribution of macroalgae and water turbidity patterns. The purpose of this data capture was to ascertain changes in turbidity and depth distribution patterns of macroalgae. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Water Turbidity - Secchi disc readings were taken at Menai Bridge Pier by staff of the Marine Science Laboratories UCNW between 1961 and 1977. The Marine Science Laboratories UCNW recommenced measurements in February 1983.Water clarity (turbidity) measurements were recorded between January 1961 and early 1978. Recordings were resumed in January 1983, with a hiatus from late 1990 until mid 1992 and relatively sparse data from then on. No Secchi disc measurements were made between 1979 and 1982. Algal Depth Distribution - Transects along a disused telegraph cable. Knight-Jones and Nelson-Smith (1956) Hoare and Peattie (1979) and annually since 1983 (NCC). Macroalgal depth distributions were established from the results of a series of surveys of the 'Teleg raph Cable' transect line across the Menai Strait. Surveys on the northern shore of the Strait were made in 1956 (3 stations); 1976 (12 stations); 1983 (12 stations); 1984 (60 stations); 1985-90; 1992; 1996; 1999 (72 stations); although since 1990 data has not been collected systematically from the near shore half of the transect (30 - 40 stations). Calculation of Critical Light Level Depths Z-values calculated Series of surveys carried out across the Menai Strait. Review of original surveys and annual NCC surveys to analyse changes in algal depth distribution and turbidity. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Environmental monitoring facilities |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Macroalgae generic abundance in water bodies | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 53.29041941 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.0594318 |
| South | The southern-most limit of the data resource in decimal degrees | 53.06413221 |
| West | The western-most limit of the data resource in decimal degrees | -4.39612168 |
| Regional sea | Wales (WLS) | |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Natural Resources Wales (NRW) | |
| Phone | 0300 065 3000 | |
| Delivery point | Maes-y-Ffynnon | |
| Postal code | LL57 2DW | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Natural Resources Wales (NRW) | |
| Phone | 0300 065 3000 | |
| Delivery point | Maes-y-Ffynnon | |
| Postal code | LL57 2DW | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | Natural Resources Wales (NRW) | |
| Phone | 0300 065 3000 | |
| Delivery point | Maes-y-Ffynnon | |
| Postal code | LL57 2DW | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Nature Conservancy Council (NCC) | |
| Phone | 01248 385500 | |
| Delivery point | c/o Natural Resources Wales, Maes Y Ffynnon | |
| Postal code | LL57 2DW | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Countryside Council for Wales (CCW) | |
| Phone | 0300 065 3000 | |
| Delivery point | Countryside Council for Wales, Maes y Ffynnon | |
| Postal code | LL57 2DW | |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
| 20 Limitations on Public Access – Other constraints | Any restriction on the use of the resource such as the need to agree to certain licence conditions. | There are no access restrictions on this data. NRW may release, publish or disseminate it freely. |
| 21 Conditions for Access and Use - Use limitation | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | © 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 NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2001-06-30 |
| Date of last revision | The most recent date that the resource was revised. | 2001-06-30 |
| Metadata date | The date when the content of this metadata record was last updated. | 2021-09-15 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.8 |
© OpenStreetMap contributors