Monitoring Tide-Swept Sponge Communities in the Menai Strait, Anglesey and Warrior, Pembrokeshire

Sponges are an important component of benthic communities in temperate waters and can become dominant in suitable conditions. Monitoring takes place at 2 sites within the Menai Strait; Coleg Normal and Nelson's Column and at one site in the Milford Haven (Warrior), Pembrokeshire. Sponge communities in the Menai Strait are dominated by large, relatively fast-growing species, such as Halichondria panicea, Esperiopsis fucorum and Haliclona oculata which thrive in rapid flowing turbid waters. The purpose of this data capture was to record the abundance and 'luxuiousness' of the sponge communities to in order to give an indication of the favourable conservation status of benthic communities within the Special Areas of Conservation (SAC's).

Dynodydd: NRW_DS111134

Teitl Amgen

Monitoring of sponge communities at Warrior, Pembrokeshire
Monitro cymunedau sbwng a ysgubir gan y llanw yn Afon Menai a Sir Benfro
Monitoring of sponges at Nelson's Column
Monitoring of sponge communities at Coleg Normal

Laith Metadata: English

Datganiad: Methods at the sites differ due to physical conditions (current and duration of slack water) Transects are marked out at both sites. At Coleg Nomal and Warrior the depth of the sponge crust along with presence/absence of key sponge species is recorded at 0.5m intervals. Where erect sponge species are found within 150mm of the transect the species and height of the sponge is noted as well as the circumference. This is carried out within a 'deep' and 'shallow' zone. At Nelsons Columns a diver swims the length of the transect filming the seabed and conspicuous species and communities. The video is used to describe the habitat and specify species. In addition 0.3x0.3m quadrats are placed at 2m intervals along the transect and the quadrat photographed. Photos are taken and archived as a record of the community and may be analysed in future. Detailed methodologies and descriptions can be found in Marine Monitoring Report 25b (standard operating procedures 3 and 5). Additional monitoring is carried out at the Warrior site (please see the Pembrokeshire Marine SAC reef monitoring metadata entry).

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2010-12-31

Ystod amser

Dyddiad cychwyn: 2004-07-14

Dyddiad gorffen: 2010-12-31

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW)

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

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

Cychwynnwr

Various contractors

See Natural Resources Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

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

Cychwynnwr

CCW Marine Monitoring Team

Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

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

Rhychwant

Hyd: Cardigan Bay

Hyd: St. Brides Bay

Hyd: Irish Sea

Hyd: Celtic Sea

Hyd: SIR BENFRO - PEMBROKESHIRE

Hyd: SIR YNYS MON - ISLE OF ANGLESEY

Map representing the geographic extent of the dataset

Maint Fertigol

Maint allweddair MEDIN: benthic boundary layer

Maint Fertigol

Gwerth lleiaf: -1

Gwerth uchaf: -14

System Gyfeirio Cydlynu Fertigol

Fformat - Math a Disgrifiad

Documents ()

Math

[A] Sponge thickness and presence/absence and video transcriptions held in word documents and excel spreadsheets. [B] Images as .JPGS. [C] Video on mini DV tape and as .AVI files

Ansawdd Data

Cwmpas Ansawdd: Dataset

Cydymffurfiad: 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
Eglurhad
Gradd: false

Datganiad: Methods at the sites differ due to physical conditions (current and duration of slack water) Transects are marked out at both sites. At Coleg Nomal and Warrior the depth of the sponge crust along with presence/absence of key sponge species is recorded at 0.5m intervals. Where erect sponge species are found within 150mm of the transect the species and height of the sponge is noted as well as the circumference. This is carried out within a 'deep' and 'shallow' zone. At Nelsons Columns a diver swims the length of the transect filming the seabed and conspicuous species and communities. The video is used to describe the habitat and specify species. In addition 0.3x0.3m quadrats are placed at 2m intervals along the transect and the quadrat photographed. Photos are taken and archived as a record of the community and may be analysed in future. Detailed methodologies and descriptions can be found in Marine Monitoring Report 25b (standard operating procedures 3 and 5). Additional monitoring is carried out at the Warrior site (please see the Pembrokeshire Marine SAC reef monitoring metadata entry).

Allweddair

GEMET - INSPIRE themes, version 1.0

Species distribution

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2008-06-01

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

Allweddair

NRW Thesaurus

marine monitoring (see also marine surveys)
sponges
porifera
Halichondria panicea
breadcrumb sponge
Menai Strait and Conwy Bay SAC
Nelson's Column
Coleg Normal
Sponge communities
Microciona sp.
Haliclona oculata
Mermaid's glove
Esperiopsis fucorum
Amphilectus fucorum
Shredded carrot sponge
Pembrokeshire Marine SAC

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2023-12-31

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

Allweddair

SeaDataNet Parameter Discovery Vocabulary

Zoobenthos generic abundance
Zoobenthos taxonomic abundance

Math: Theme

Dyfyniad

Dyddiad (Adolygu): 2021-01-06

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

Cod: Latitude and Longitude (EPSG::4326)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

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 to this data. NRW may release, publish or disseminate it freely.

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio: Other restrictions

Cyfyngiadau eraill: © CNC/NRW 2009 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

Dynodydd Ffeil: 4f4c4942-4343-5764-6473-313131313334 XML

Laith Metadata: English

Dynodydd Rhiant: Across Wales Diving Monitoring Project (2004)
NRW_DS109743

Math o adnodd: Dataset

Dyddiad Metadata: 2024-12-09T12:32:47.555Z

Enw Safonol Metadata: NRW

Fersiwn Metadata: 1.0

Pwynt Cyswllt

Natural Resources Wales (NRW)

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

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

Corff Cyhoeddi

Mynediad i'r Porth

Mynediad llawn i'r porth a'r metadata.

Monitoring Tide-Swept Sponge Communities in the Menai Strait, Anglesey and Warrior, Pembrokeshire

Dull adnabod

Ystod amser

Rhychwant

Rhychwant

Maint Fertigol

Maint Fertigol

Dosbarthiad

Ansawdd

Ansawdd Data

Allweddeiriau

Allweddair

Dyfyniad

Allweddair

Dyfyniad

Allweddair

Dyfyniad

System Cyfeirio Gofodol

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Cyfarwyddeb Cyfyngiadau Mynediad

Testun cyfyngiadau mynediad

Defnyddiwch gyfyngiadau

Metadata

Metadata

Corff Cyhoeddi