Identification

Title

2009 - 2011 Centre for Environment, Fisheries & Aquaculture Science (Cefas) North Sea and English Channel Organic Carbon and Nitrogen in Sediments

Alternative title(s)

sediment carbon and nitrogen

Abstract

Concentration of organic carbon and organic nitrogen from CHN analysis of sediment samples collected by box core from sites in the English Channel and North Sea during three surveys on RV Cefas Endeavour (Cruise Codes CEND 15/09, CEND 11/10 and CEND 11/11), with associated summary PSA data (%gravel, %sand, %mud). Mostly UK waters in coverage but some data from the Oyster Grounds (Dutch waters). Cores were sliced and sampled at a range of depth horizons and the data compiled to provide average values for the 0-5 cm and 5-10cm depth layers. These were used to summarise profiles and describe spatial variance within four Ecohydrodynamic Units (EHUs).

Resource type

dataset

Resource locator

Unique resource identifier

code

CEFASb0f49537-cbce-4391-b667-2214b1306187

codeSpace

http://www.cefas.co.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

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

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

GEMET, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-6

East bounding longitude

5

North bounding latitude

56.75

South bounding latitude

49

Extent

Extent group

authority code

title

SeaVoX Vertical Co-ordinate Coverages

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

2009-01-01

End position

2011-12-31

Dataset reference date

date type

publication

effective date

2021-12-10

Frequency of update

notPlanned

Quality and validity

Lineage

Samples were screened at 2mm and the <2mm fraction was then freeze dried, homogenised, and treated with sulphurous acid to remove inorganic carbon (carbonates). Organic carbon was determined by flash combustion. Organic carbon levels in the sediment indicate the amount of organic matter supplied to the bed and how rapidly it is decomposed, i.e. it reflects the balance between input and respiration/burial. Organic carbon content of sediments is also related to eutrophication and biodiversity due to the relationship between the recycling of organic matter and the availability of oxygen. Records include data from Defra funded project ME5301 entitled 'Mapping the structure, function and sensitivity of seabed sediment habitats to support assessment of the sea-floor status and the broadscale monitoring and management of the benthic environment' which sampled locations in the North Sea and western English Channel. Further details of the project can be found at: `http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=2&ProjectID=16812`_ .. _`http://randd.defra.gov.uk/default.aspx?menu=menu&module=more&location=none&completed=2&projectid=16812`: http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=2&ProjectID=16812

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Constraint set

Limitations on public access

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Responsible organisations

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2021-12-10T12:46:53

Metadata language

eng