Identification

Title

2012 - 2012 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Hythe Bay Marine Conservation Zone (MCZ) Survey Infauna Data - 2012

Abstract

Counts and presence/absence of species of macrofauna identified from 31 grab samples collected at Hythe Bay Marine Conservation Zone on the 26 ^... March 2012 The data were collected for the Marine Conversation Zones Project funded by the Department for Environment, Food & Rural Affairs (DEFRA).

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/19421/

function: order

Unique resource identifier

code

CEFASea92dbe1-1000-40d7-b27f-a11221aa14be

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

oceans

Keywords

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

0.5

East bounding longitude

1.5

North bounding latitude

51.25

South bounding latitude

50.75

Extent

Extent group

authority code

title

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

2012-03-26T22:00:00.000Z

End position

2012-03-26T22:00:00.000Z

Dataset reference date

date type

publication

effective date

2020-03-05

Frequency of update

notPlanned

Quality and validity

Lineage

Samples were collected at 31 sites within the Hythe Bay Marine Conservation Zone on survey SVGL0912 as described in the Environment Agency Water Framework Directive (WFD) operational instructions 104_10 (2012) and 009_07 (2014). `https://www.eea.europa.eu/themes/water/interactive/by-category/wfd`_ The EA WFD sampling methodology required two similar samples; the first was used to obtain a fauna sample (minimum depth of 5 cm in sand habitat and 7 cm in mud habitat) and the second solely to obtain a sub-sample for particle size analysis A Day grab, with a surface sampling area of 0.1 m ^... was deployed from the stern gantry of the survey vessel to recover sediment from the seabed. Sampling positions were recorded (fixed) using Hydropro data acquisition software when the gear made contact with the seabed, and the mid-point of the vessel’s stern gantry was used as the default offset for position fixing. On recovery, a photograph was taken of the undisturbed surface and the depth of material within the grab was measured using a probe. A sample depth of 5 cm was required to qualify as a valid sample. The sample was inspected to measure the depth of the apparent Redox Potential Discontinuity (aRPD) or ‘black layer’, if present. A 100 ml sub-sample was then removed for Particle Size Analysis (PSA), using a 3 cm diameter core driven to the full depth of the grab. The remaining faunal sample was then processed by washing over a 1.0 mm sieve. The retained material was photographed and preserved in a buffered 8% formaldehyde solution for transfer ashore to a specialist laboratory for analysis. .. _`https://www.eea.europa.eu/themes/water/interactive/by-category/wfd`: https://www.eea.europa.eu/themes/water/interactive/by-category/wfd

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

Responsible party

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

originator

Responsible party

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

custodian

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

2020-03-05T12:47:50

Metadata language