Zooplankton analysis

Plankton samples were collected from during a sandbank survey at nine sites in four Candidate Special Areas of Conservation (cSAC) using a plankton net positioned above a beam trawl. The zooplankton was analysed my Emu Ltd and found to contain common Irish Sea species.


Classification analysis revealed that four of the sites (Red Wharf Bay, Four Fathom, Helwick and Cardigan) each supported distinct communities based on their faunal composition, and the distinguishing features of each were identified. Samples from the remaining sites did not fall into site-specific groups indicating that the fauna in these areas was less distinct.


Data used to sort and identify the planktonic animals from samples taken as part of the sandbank survey in four SACs along the Welsh coastline.

Identification

Identifier
NRW_DS110022
Metadata Language
English
Lineage

The samples were taken in Jul/Aug 2001 from nine sites (Tripod, Cardigan, Bais, Helwick, Four Fathom, Bastram Shoals, Turbot Bank, Devil's Ridge and Red Wharf Bay) using a 0.5 mm plankton net suspended above a trawl beam. Planktonic animals (excluding benthic invertebrates and the larvae of decapods) were identified down to the lowest possible taxon using standard techniques. A classification analysis on the loge(x+1) transformed data using the Bray-Curtis similarity measure was performed using PRIMER software to examine inter-relationships between samples. Data collected during a sandbank survey of nine cSACs along the coastline of Wales.
Dataset Reference Date (Publication)
2002-08-31
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Countryside Council for Wales (CCW) -
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword
water column
 
 

Distribution

Distribution

Format Type and Description
  • Documents ( )

    Specification

    the project reports is held as a .pdf document.

  • Delimited ( )

    Specification

    Data is held in Excel spreadsheets

 

Quality

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

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

The samples were taken in Jul/Aug 2001 from nine sites (Tripod, Cardigan, Bais, Helwick, Four Fathom, Bastram Shoals, Turbot Bank, Devil's Ridge and Red Wharf Bay) using a 0.5 mm plankton net suspended above a trawl beam. Planktonic animals (excluding benthic invertebrates and the larvae of decapods) were identified down to the lowest possible taxon using standard techniques. A classification analysis on the loge(x+1) transformed data using the Bray-Curtis similarity measure was performed using PRIMER software to examine inter-relationships between samples. Data collected during a sandbank survey of nine cSACs along the coastline of Wales.
 

Keywords

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
  • zooplankton
  • bat communities
  • phytoplankton
  • Cardigan
  • Helwick
  • Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
  • Faunal composition
  • classification analysis
  • sandbanks
  • plankton samples
  • marine and freshwater inventory
  • Red Wharf Bay
  • Four Fathom
Type
Theme

Citation

Date (Publication)
2025-01-08
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary
Type
Theme

Citation

Date (Publication)
2024-06-19
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Zooplankton analysis
 

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 on 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

Metadata

File Identifier
4f4c4942-4343-5764-6473-313130303232 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2026-03-03T17:24:08.526Z
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

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