ad9d6383a1092a8b27f1a9b3e1468343 English dataset Department of Agriculture, Environment and Rural Affairs Data contact Marine.InfoRequests@daera-ni.gov.uk pointOfContact 2022-07-22 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 DAERA Annual Rocky Shore Macroalgae Survey 2008-06-27 publication DAERA-RSM http://www.daera-ni.gov.uk The rocky shore macroalgae survey is annual assessment of the proportions of rhodophyta (red algae), chlorophyta (green algae), and opportunistic macroalgae communities at fixed sites around the Northern Irish coast. Algal populations can alter in numbers and species composition due to external environmental influence, hence they are a useful indicator of anthropogenic disturbances and pollution. Shores are surveyed for presence of specimens against a prescribed list of species (Reduced Species List).Certain sites are also surveyed for a complete list of species present (Full Species List). Data is recorded as presence (1), or absence (""). Data collected contributes to the classification of Northern Irish water bodies under the Rocky Shore Macroalgae quality element of the EU Water Framework Directive. Within DAERA, this work forms part of the Intertidal Rocky Shore work programme (MM(YY)-12). Department of Agriculture, Environment and Rural Affairs Data contact Marine.InfoRequests@daera-ni.gov.uk originator Department of Agriculture, Environment and Rural Affairs Data contact Marine.InfoRequests@daera-ni.gov.uk custodian annually Delimited Marine Environmental Data and Information Network NDGO0005 Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Macroalgae generic abundance in water bodies SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Biodiversity GEMET 2011-07-06 creation Marine Environment Monitoring Global Change Master Directory Science Keywords V5 2006-08-31 creation Although the Department (of Agriculture, Environment and Rural Affairs - DAERA) has made every effort to prepare the data and believes the information it contains is reliable within the context in which the data was originally generated/collected, errors within the data remain a possibility. Therefore the Department gives no warranty regarding the accuracy or suitability of the data for the data requestors intended use, and accepts no responsibility for any errors or omissions, or for the use of, or results obtained from the use of this data, whether in part or in whole. otherRestrictions no restrictions on use. 1000 English biota Charting Progress 2 Sea Areas 2009-06-18 creation Irish Sea Charting Progress 2 Sea Areas 2009-06-18 creation Minches & Western Scotland ICES Rectangles 2009-05-01 creation 39E2 ICES Rectangles 2009-05-01 creation 37E3 ICES Rectangles 2009-05-01 creation 39E3 ICES Rectangles 2009-05-01 creation 37E4 ICES Rectangles 2009-05-01 creation 38E4 ICES Rectangles 2009-05-01 creation 39E4 SeaDataNet vertical extent keywords 2010-01-01 revision littoral -7.3833 -5.2739 53.9639 55.3492 2006-01-11 2022-07-22 Department of Agriculture, Environment and Rural Affairs Data contact Marine.InfoRequests@daera-ni.gov.uk distributor http://www.opendatani.gov.uk/dataset/daera-macroalgae-rocky-shore-surveys NI Open Data Portal - Macroalgae Rocky Shore Survey Page A link to the dataset https://www.opendatani.gov.uk/ NI Open Data Portal A link to the general host site dataset Data is collected by competent staff carrying out field shore surveys of macroalgal communities. Data in this dataset is used to calculate the Rocky Shore Macroalgal Index. The rocky shore macroalgal index is composed of five metrics: (i) Species richness (normalised using a shore factor) (ii) Proportion of Chlorophyta (green) species (iii) Proportion of Rhodophyta (red) species (iv) Proportion of opportunists (fast-growing nuisance algae) (v) Ratio of ecological status groups (ESG). Individual metrics are weighted equally and combined within a multi-metric index to assess the structure and composition of intertidal rocky shore macroalgae communities. The species richness component is normalised against a shore factor to enable different shore types to be directly comparable regardless of localised natural environmental factors such as diversity of sub-habitats. Data quality is ensured by particpation in annual NMBAQC ring tests. All staff involved in taxonomic identification of specimens must achieve the required standard of the scheme.