Management Measures for Self-Propagated Future Recovery of Crawfish, Palinurus elephas, in Welsh Waters.
Mesurau rheoli ar gyfer adfer cimychiaid yr afon, Palinurus elephas, yn nyfroedd Cymru yn y dyfodol trwy hunan-epilio

  • English
  • wel
  • All

The crawfish, Palinurus elephas, is a large benthic crustacean found mainly on rocky seabeds from the Azores in the south to Norway in the North and throughout the Mediterranean. This species is commercially valuable and has been targeted by fisheries for over a century; however, fisheries in Wales and beyond have seen a steep decline in landings since the 1960s which coincided with the introduction of net fisheries for this species.


The crawfish is a priority species for the UK Biodiversity Action Plan and is also an important component of Special Areas of Conservation (SACs) designated for rocky reefs. It has been identified by the National Assembly for Wales as one of the species of "principal importance for the purpose of conserving biodiversity" in Wales and is listed in the Natural Environment Rural Communities (NERC) Act 2006. This act requires that steps be taken that are 'reasonably practicable to further the conservation of the living organisms' listed and to 'promote the taking by others of such steps'. It is therefore important to understand the potential impact of fisheries management measures and other management measures on the recovery of this species both in designated areas and within the wider context of Welsh waters as a whole including the potential impact of regulations or management measures in adjacent waters.


The purpose of this data capture was to investigate management measures for the self-propagated future recovery of crawfish Palinurus elephas in Welsh waters. The overall aim of this survey and reporting work was to establish the potential effectiveness of existing and possible management measures (both fishery and nature conservation based) to enable self-propagated recovery of P. elephas populations in Welsh waters within the context of their declined status. This was to be carried out through a review of relevant literature on this and other crustacean species to determine using the best available data and information the potential benefit of the different management measures.

Identification

Dynodydd
Identifier
NRW_DS114818
Laith Metadata
Metadata Language
English
Lineage

In order to assess the potential effectiveness of existing and potential management measures for the recovery of Welsh populations of P elephas a review of available information has been carried out in the form of a literature review, including grey literature, and through liaison with persons with specific relevant expertise. Where possible direct examples of recovery attributed to different management measures are reported including timescales. Where direct examples are not available, comparisons are drawn and aspects of the biology of P. elephas are interpreted with regards to the specific management measure in question. Where relevant management measures are applied in adjacent areas with the potential to aid recovery in Welsh waters, these are also included. The limitations of each management measure in aiding the potential recovery of crawfish populations in Welsh waters are also discussed. This metadata relates to a literature review, therefore there is no associated data other than the references within the final report.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2012-05-31
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  NAFC Marine Centre -
Port Arthur, Scalloway, Shetland, ZE1 0UN
www.nafc.ac.uk
 

Extent

Extent

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


 

Vertical Extent

Medin Extent Keyword

benthic boundary layer
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ( )

    Specification

    Report in PDF and Word Format

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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

In order to assess the potential effectiveness of existing and potential management measures for the recovery of Welsh populations of P elephas a review of available information has been carried out in the form of a literature review, including grey literature, and through liaison with persons with specific relevant expertise. Where possible direct examples of recovery attributed to different management measures are reported including timescales. Where direct examples are not available, comparisons are drawn and aspects of the biology of P. elephas are interpreted with regards to the specific management measure in question. Where relevant management measures are applied in adjacent areas with the potential to aid recovery in Welsh waters, these are also included. The limitations of each management measure in aiding the potential recovery of crawfish populations in Welsh waters are also discussed. This metadata relates to a literature review, therefore there is no associated data other than the references within the final report.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • environmental management
  • crustacea (crustaceans)
  • commercial fisheries
  • palinurus elephas
  • crawfish
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Allweddair
Keywords

IPSV Subjects List
  • Nature conservation
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2020-11-18
Code
geonetwork.thesaurus.external.theme.subjects
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

Management measures for self propagated future recovery of crawfish palinurus elephas in Welsh waters
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
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

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW 2012 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313134383138 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-03-03T12:51:20.041Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
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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