Identification

Title

1997 - 1997 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : AMAR 1/97 (part of Solent Bass Pre-recruit Survey (FSS: SOLENT))

Abstract

This survey was undertaken by Cefas as part of the Solent Bass Pre-recruit Survey (FSS: SOLENT); There are over 50 surveys in this series which began in 1983. The aim of these are to provide abundance indices of 2-4 year old bass. The catch density of other species taken is also recorded. The survey was undertaken twice yearly during May and September for most years up to 2009. Since then one September survey each year has taken place. Survey took place between 07/05/1997 and 12/05/1997 on Angelle Marie Equipment used during this survey : - Otter Trawl Solent Bass Trawl 5 fm Headline, 6 & 8 metre bridles, 40mm Liner Survey operations were undertaken on 45 stations 52 different species were caught on this survey

Resource type

series

Resource locator

http://data.cefas.co.uk/#/View/10035/

function: order

Unique resource identifier

code

CEFAS1CDEED0A-0A3C-463D-972E-43A86DF09950

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

Additional information source

`http://data.cefas.co.uk/#/View/3930`_ .. _`http://data.cefas.co.uk/#/view/3930`: http://data.cefas.co.uk/#/View/3930

Classification of spatial data and services

Topic category

biota

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

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-2

East bounding longitude

-0.5

North bounding latitude

51

South bounding latitude

50.5

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

1997-05-07T00:00:00.000Z

End position

1997-05-12T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2016-07-14

Frequency of update

notPlanned

Quality and validity

Lineage

The abundance, age and length of bass is recorded from fishing stations on a standard grid in Southampton Water, the Solent, and Portsmouth and Chichester Harbours using a standard bass trawl. A QA exercise has been undertaken in February 2014. The quality of sampling has improved progressively over the time series. Prior to 1995 only bass, and sometimes bream, mullet and plaice, were measured; since then most commercial species have been sampled for length. No species have ever been weighed on these surveys, but incorrect sampling process codes (e.g. weighed and counted (WC)) had been used in the original dataset. These have not been changed, but all weight values from this dataset should be ignored. No coordinate information was recorded in the log books for any of the surveys before 1995. A list of the prime stations with their position coordinates had been created manually from Admiralty charts, so there are no accurate “distanced towed” data. Stations have now been assigned validity flags. Use of an additional tow (A) has been used to indicate tows that were not part of the core survey, such as tows specifically targeting bass to tag, exploratory tows and gear comparison trials. All benthos data have now been entered onto the Fishing Survey System (FSS) database, although data recorded for benthos pre-1995 are sparse, and for some surveys (e.g. 2/2007) the benthos has been recorded in great detail due to the presence of a benthos expert from Southampton University on board. There are no age data available prior to 1994, although aggregated age length keys for some of the surveys exist in paper format. Some of the ages are missing from the samples. In these cases not all of the scale samples were analysed as it was deemed that five samples per centimetre group were sufficient. Species and Gear codelists are available via the additional information source field.

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

2016-07-14T12:28:23

Metadata language

eng