ce94800d-7686-41ac-9e58-b04deec864ed
English
dataset
Department of Agriculture, Environment and Rural Affairs
Data contact
Marine.InfoRequests@daera-ni.gov.uk
pointOfContact
2018-11-21
MEDIN Discovery metadata standard
2.3.8
urn:ogc:def:crs:EPSG::4326
DAERA Imposex in Nucella lapillus National Survey - 2017
2018-11-21
publication
2017-05-31
creation
2018-11-20
revision
DAERA-NIM2017
http://www.daera-ni.gov.uk
The DAERA Northern Ireland National Imposex Survey is a tri-annual (once every three years) assessment of the bioeffects of Tri-Butyl-Tin (TBT) on Nucella lapillus. Data is collected for the purposes of reporting to Water Framework Directive (WFD), the Marine Strategy Framework Directive (MSFD), the Clean Safe Seas Evidence Group (CSSEG), and the OSPAR Commission. Data consists of VDS (Vas Deferens Sequence) values for female specimens, and penis length measurements in millimetres of all specimens.
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
asNeeded
Delimited
Marine Environmental Data and Information Network
NDGO0005
Human health and safety
GEMET - INSPIRE themes, version 1.0
2008-01-06
revision
Bioassay and contaminant biological impact
SeaDataNet P021 parameter discovery vocabulary
2009-11-16
revision
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 restriction to public access
English
health
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
-7.3833
-5.2739
53.9639
55.3492
2017-05-30
2017-07-18
Department of Agriculture, Environment and Rural Affairs
Data contact
Marine.InfoRequests@daera-ni.gov.uk
distributor
http://www.opendatani.gov.uk/dataset/87e0d355-4dab-4a25-8baf-c296aa98f351/resource/71041e1c-7644-4033-a964-da9429dbee72/download/imposex-survey-data---2017.ods
online dataset
A link to the web service or dataset
http://www.opendatani.gov.uk
Open Data NI Portal
A link to the general host site
dataset
Samples are collected onshore by trained field staff. Specimens are transferred to the laboratory and stored in oxygenated tanks for no more than 48 hours prior to dissection. Vas Deferens Stage (VDS) categories are assessed using groupings described in Gibbs, P.E., Bryan, G.W., Pascoe, P.L. and Burt, G.R., 1987. The use of the dogwhelk Nucella lapillus as an indicator of tributyltin (TBT) contamination. J. Mar. Biol. Ass. UK 67:507-523. Male and female (if penis present) penis lengths are measured in millimetres for use in calculation of the Relative Penis Size Index (RPSI). Data quality is assured by participation in the QUASIMEME quality assurance scheme. Participant laboratories are sent sub-samples from the same population, and returned values must fall within accepted standard error limits for the entire community.