Identification

Title

DAERA Annual Rocky Shore Macroalgae Survey (2002 - 2018)

Abstract

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).

Resource type

dataset

Resource locator

https://appsd.daera-ni.gov.uk/marinemapviewer/

description: A link to the web service or dataset

Unique resource identifier

code

DAERA-RSM

codeSpace

http://www.daera-ni.gov.uk

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Classification of spatial data and services

Topic category

biota

Keywords

Keyword set

keyword value

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

revision

effective date

2008-01-06

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2009-11-16

Keyword set

keyword value

originating controlled vocabulary

title

GEMET

reference date

date type

creation

effective date

2011-07-06

Keyword set

keyword value

originating controlled vocabulary

title

Global Change Master Directory Science Keywords V5

reference date

date type

creation

effective date

2006-08-31

Geographic location

West bounding longitude

-7.3833

East bounding longitude

-5.2739

North bounding latitude

55.3492

South bounding latitude

53.9639

Extent

Extent group

authority code

title

Charting Progress 2 Sea Areas

reference date

date type

creation

effective date

2009-06-18

code identifying the extent

Irish Sea

Extent group

authority code

title

Charting Progress 2 Sea Areas

reference date

date type

creation

effective date

2009-06-18

code identifying the extent

Minches & Western Scotland

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

39E2

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

37E3

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

39E3

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

37E4

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

38E4

Extent group

authority code

title

ICES Rectangles

reference date

date type

creation

effective date

2009-05-01

code identifying the extent

39E4

Extent group

authority code

title

International Hydrographic Bureau, Limits of Oceans and Seas

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

Inner Seas off the West Coast of Scotland

Extent group

authority code

title

International Hydrographic Bureau, Limits of Oceans and Seas

reference date

date type

creation

effective date

1954-01-01

code identifying the extent

Irish Sea and St. George's Channel

Extent group

authority code

title

ICES Statistical Areas

reference date

date type

creation

effective date

2014-05-16

code identifying the extent

VIIa

Extent group

authority code

title

ICES Statistical Areas

reference date

date type

creation

effective date

2014-05-16

code identifying the extent

VIa

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

littoral

Temporal reference

Temporal extent

Begin position

2002-08-15

End position

2017-09-12

Dataset reference date

date type

publication

effective date

2018-06-29

Frequency of update

annually

Quality and validity

Lineage

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.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

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.

Constraint set

Limitations on public access

no restrictions on use.

Responsible organisations

Responsible party

contact position

Data contact

organisation name

Department of Agriculture, Environment and Rural Affairs

email address

Marine.InfoRequests@daera-ni.gov.uk

responsible party role

originator

Responsible party

contact position

Data contact

organisation name

Department of Agriculture, Environment and Rural Affairs

email address

Marine.InfoRequests@daera-ni.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data contact

organisation name

Department of Agriculture, Environment and Rural Affairs

email address

Marine.InfoRequests@daera-ni.gov.uk

responsible party role

pointOfContact

Metadata date

2018-11-19

Metadata language

eng