DAERA Annual Rocky Shore Macroalgae Survey (2002 - 2018)
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).
dataset
https://appsd.daera-ni.gov.uk/marinemapviewer/
description: A link to the web service or dataset
DAERA-RSM
http://www.daera-ni.gov.uk
eng
urn:ogc:def:crs:EPSG::4326
biota
revision
2008-01-06
revision
2009-11-16
creation
2011-07-06
creation
2006-08-31
-7.3833
-5.2739
55.3492
53.9639
creation
2009-06-18
Irish Sea
creation
2009-06-18
Minches & Western Scotland
creation
2009-05-01
39E2
creation
2009-05-01
37E3
creation
2009-05-01
39E3
creation
2009-05-01
37E4
creation
2009-05-01
38E4
creation
2009-05-01
39E4
creation
1954-01-01
Inner Seas off the West Coast of Scotland
creation
1954-01-01
Irish Sea and St. George's Channel
creation
2014-05-16
VIIa
creation
2014-05-16
VIa
revision
2010-01-01
littoral
2002-08-15
2017-09-12
publication
2018-06-29
annually
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.
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.
no restrictions on use.
Data contact
Department of Agriculture, Environment and Rural Affairs
Marine.InfoRequests@daera-ni.gov.uk
originator
Data contact
Department of Agriculture, Environment and Rural Affairs
Marine.InfoRequests@daera-ni.gov.uk
custodian
Data contact
Department of Agriculture, Environment and Rural Affairs
Marine.InfoRequests@daera-ni.gov.uk
pointOfContact
2018-11-19