Identification

Dynodydd

Identifier

NRW_DS115887

Teitl Amgen

Alternative Title

• 2014 NRW Comprehensive reassessment of NNS in Welsh marinas Marine Recorder Survey MRCCW32900000002

Laith Metadata

Metadata Language

English

Lineage

A Rapid Assessment Survey was done at each marina. The available floating pontoons were split between the 3 surveyors. Each surveyor spent 1 hour searching their allocated area, examining and scraping pontoon sides, and examining any other substrates accessible from the surface e.g. ropes, buoys, fenders, kelps etc.. All 32 target Non Native Species presences and absences were noted and abundance estimated (using an abbreviated and adapted SACFORN scale where A=SA (Super abundant or abundant), F=CF (common or frequent), R=OR (occasional or rare), N=N (not-present)). Any other potential Non Native Species such as unidentified specimens, those requiring microscopical examination for species confirmation, and specimens to substantiate significant findings were relaxed, preserved and examined later in the laboratory. The majority of species were determined on site. This method focuses primarily on fouling organisms which live attached to solid substrates. Funding was obtained by Welsh Government Resilient Ecosystems Fund, which is administered by Natural Resources Wales (NRW).

Additional Information

The initial survey took place in 2011 by former Countryside Council for Wales (CCW) now Natural Resources Wales. See metadata entry 114771 Across Wales Marine Non-Native Species Survey around Welsh Marinas ( extracted from Marine Recorder ).

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)

Dataset Reference Date (Publication)

2014-07-03

Extent

Extent

Hyd

Geographic Extent

Wales (WLS)

N

W

E

S

 

Distribution

Quality

Keywords

Spatial Reference System

Content

Constraints