Identification

Title

2019 - 2020 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Sprat and Sardine self-sampling 2019/20 - Fisheries Science Partnership

Alternative title(s)

FSP Report 64 Sprat and Sardine Self-sampling 2019/20

Abstract

This work was carried out as part of the Fisheries Science Partnership (FSP) programme. The primary objective of the project is to improve the data collection on sprat in the South West of England in support of the stock assessment, by means of the continuation of a self-sampling programme carried out by fishermen and main producers that begun in 2017-2018. After the success of the first year, and some areas identified as requiring further fine-tuning, the sardine self-sampling programme was continued in 2018-2019 and expanded to the sprat fishery. In 2019-20, the current FSP project had the primary objective: to improve and continue the data collection for sprat in the South West by means of a self-sampling programme carried out by fishermen. Although the focus of project was on sprat data, the project continued to support the third season of self- sampling by the sardine fishery as well. Ultimately, the aim of the FSP project is that the self-sampling programme for both the sprat and sardine fisheries can run autonomously and will (continue to) contribute reliable fisheries dependent data to the assessment process for both stocks. Participating vessels recorded haul details (date, position, fishing gear), and length distributions of around 50 individual sprat and sardine. In addition to the data collected by the fishermen, processors agreed to provided individual length and weight information for at least 50 individuals per species per month.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/20926/

function: order

Unique resource identifier

code

CEFAS00c89b57-0293-4579-8460-66bacf8cdae8

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

Geographic location

West bounding longitude

-4

East bounding longitude

-2.5

North bounding latitude

51

South bounding latitude

50

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

2019-08-01T22:00:00.000Z

End position

2020-01-31T23:00:00.000Z

Dataset reference date

date type

publication

effective date

2020-12-07

Frequency of update

notPlanned

Quality and validity

Lineage

The self-sampling programme consisted of two components: i) fishermen collected individual length frequency data at sea from a subsample of two catches per month and ii) processors recorded lengths in addition to the individual weight already recorded during processing. Self-sampling by fishermen: Catches at predetermined dates or weeks were subsampled by fishermen following the “bucket sampling protocol” which was developed successfully during the first year of this programme. In order to achieve this, fishermen were provided with: (i) a calendar indicating the sampling dates, (ii) dedicated logbooks to record trip and haul details, (iii) length sampling sheet templates and (iv) measuring boards and sampling buckets. On a given sampling date, fishermen completed the logbook and recorded the length measurements of approximately 50 individuals (one full bucket) following the aforementioned protocol. Regular visits by one of Cefas’ observers were made to the boats to train and quality control procedures and to collect the data, completed logbooks and length files. Paper records were then transferred to Cefas’ excel files. Self-sampling by processors: In addition to the data collected by the fishermen, all processors agreed to provide monthly data as well. Specifically, they were asked to provide individual length and weight information for at least 50 individuals per species per month.

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

2020-12-07T11:29:51

Metadata language