Surveys of Harbours, Rias and Estuaries in Southern Britain - Milford Haven and Daugleddau

The Nature Conservancy Council commissioned the Field Studies Council to undertake studies of the marine inlets of southern Britain, including harbours, rias and estuaries, in order to gain information on the ecosystems present. The study took place between 1985 and 1988 and covered 24 inlets. This dataset contains the results of a survey of Milford Haven and the estuary of the Rivers Cleddau (Daugleddau estuary). The purpose of this dataset was to describe areas in terms of their physical attributes; to review the results of previous studies; to review marine resource usage e.g. fisheries, diving activites etc; to catalogue available information and, to collect information and photographs on the habitats and species present. The field survey specifically aimed to collect further information on habitats and species where little or no previous work had been carried out, in areas of known or likely nature conservation importance, or where rare or unusual species may be present.

Identifier: NRW_DS111189

Alternative Title

1985 OPRU HRE Milford Haven and the Cleddau survey JNCCMNCR10000246
Arolygon o borthladdoedd, morydiau ac aberoedd yn ne Prydain - Aberdaugleddau

Metadata Language: English

Lineage: 14 intertidal, 17 subtidal diving and 7 dredge sites were surveyed to investigate four main elements: 1) Epibiota of rocky and sediment shores- a systematic description was made of the abundance of species in the main habitats/communities present at different heights on the open shore. Records were also made from unusual habitats e.g. gullies, rockpools etc. Sketches of site location, site profile and important features were made and photographs taken. 2) Infauna of sediment shores- shore habitats were recorded at each site and abundance of species visible at the surface noted. A general dig for large or widely dispersed species was accompanied by sieving and laboratory analysis to identify the less conspicuous fauna. 3) Epibiota of subtidal rock and sediments- surveys were undertaken from deep to shallow water or offshore to onshore with some spot dives. A drift dive was undertaken at one location. At each survey station the habitat type was described and the abundance of conspicuous species recorded. Photographs were taken species were collected where necessary for identification purposes. 4) Infauna of subtidal sediments-sediment samples were collected at 5 sites for qualitative examination of the macro-infauna. A pipe dredge also collected sediment from each sample site.

Dataset Reference Date (Publication): 1987-02-28

Temporal Extent

Begin date: 1985-01-01

End date: 1985-12-31

Topic category

Biota

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Field Studies Council. Oil Pollution Research Unit

Head office, Preston Montford, Montford Bridge, Shrewsbury, Shropshire, SY4 1HW, England

http://www.field-studies-council.org/

Originator

Nature Conservancy Council (NCC)

c/o Natural Resources Wales, Maes Y Ffynnon, Penrhosgarnedd, Bangor, LL57 2DW, Wales

http://naturalresourceswales.gov.uk/splash?orig=/

Extent

Geographic Extent: SIR BENFRO - PEMBROKESHIRE

Geographic Extent: Wales (WLS)

Map representing the geographic extent of the dataset

Vertical Extent

Medin Extent Keyword: soil and sediment boundary layer

Format Type and Description

Database ( )

Specification

[A] Paper copy of survey reports (includes conspicuous species distribution records, field data for intertidal and subtidal dredge sites, catalogue of photos, species lists etc). [B] Data entered into JNCC's copy of Marine Recorder (survey number (JNCCMNCR10000246). Available on All Wales snapshot.

Data quality

Quality Scope: Dataset

Conformity: 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
Explanation
Degree: false

Lineage: 14 intertidal, 17 subtidal diving and 7 dredge sites were surveyed to investigate four main elements: 1) Epibiota of rocky and sediment shores- a systematic description was made of the abundance of species in the main habitats/communities present at different heights on the open shore. Records were also made from unusual habitats e.g. gullies, rockpools etc. Sketches of site location, site profile and important features were made and photographs taken. 2) Infauna of sediment shores- shore habitats were recorded at each site and abundance of species visible at the surface noted. A general dig for large or widely dispersed species was accompanied by sieving and laboratory analysis to identify the less conspicuous fauna. 3) Epibiota of subtidal rock and sediments- surveys were undertaken from deep to shallow water or offshore to onshore with some spot dives. A drift dive was undertaken at one location. At each survey station the habitat type was described and the abundance of conspicuous species recorded. Photographs were taken species were collected where necessary for identification purposes. 4) Infauna of subtidal sediments-sediment samples were collected at 5 sites for qualitative examination of the macro-infauna. A pipe dredge also collected sediment from each sample site.

Keywords

GEMET - INSPIRE themes, version 1.0

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

estuaries (see also specific estuary names)
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)
Milford Haven
Daugleddau estuary
Martasterias glacialis

Type: Theme

Citation

Date (Publication): 2024-06-19

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary

Zoobenthos taxonomic abundance
Habitat characterisation
Zoobenthos generic abundance

Type: Theme

Citation

Date (Publication): 2024-06-19

Code: geonetwork.thesaurus.external.theme.rdf+xml

Code: Latitude and Longitude (EPSG::4326)

Content Information

NRW Profile

Custom Elements

NRW Related Title: Surveys of harbours, rias and estuaries in Southern Britain : Milford Haven and the estuary of the Rivers Cleddau volume 1 report

NRW Related Title: Surveys of harbours, rias and estuaries in Southern Britain : Milford Haven and the estuary of the Rivers Cleddau volume 2

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 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.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313131313839 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: 2024-12-13T15:52:03.797Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

Surveys of Harbours, Rias and Estuaries in Southern Britain - Milford Haven and Daugleddau

Identification

Temporal Extent

Extent

Extent

Vertical Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body