Identification

Title

1990 - 1990 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Southern North Sea and English Channel Plankton Survey - RV Corystes 01/90

Abstract

Analysis of plankton samples collected as part of the International Council for the Exploration of the Sea (ICES) coordinated herring larvae survey of ICES Regions IVc and VIId (Southern North Sea and Eastern English Channel). Plankton samples were collected at each site on a planned survey grid. Dataset consists of the numbers and lengths of herring, sprat and pilchard larvae, along with associated positional data and volumes filtered.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/2556/

function: order

Unique resource identifier

code

CEFAScbe0f32a-a6d4-4e1f-a84e-acade4d01413

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

biota

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

-2

East bounding longitude

5

North bounding latitude

53

South bounding latitude

49

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

1990-01-04

End position

1990-01-18

Dataset reference date

date type

publication

effective date

2020-01-30

Frequency of update

notPlanned

Quality and validity

Lineage

77 plankton samples were collected using a 53cm Gulf-type sampler with 20cm nosecone and MAFF MH82 electronics package for recording flow counts. Herring, sprat and pilchard were sorted and measured from these samples using standard identification techniques. Additional fine mesh (325um) 'pup' samples were also collected but not analysed. Data storage: The raw data were stored in an Access database. The various data files were stored on the database in a series of tables linked by having the content of certain fields in common. All routine calculations, calibration changes and conversions were carried out on the database. The data tables (but not queries) have now been extracted into text files. Plankton data are normally expressed as either number of organisms per m3 or per m2. The number per m3 is obtained by dividing the numbers per sample by the volume filtered, calculated from the sampler flowmeters. Number per m2 is obtained by multiplying the number per m3 by the mean sampled depth during a deployment.

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

2020-01-30T13:23:50

Metadata language