DATRAS Netherlands Industry Survey on Turbot and Brill (NL-BSAS)

The flatfish species turbot (Scophthalmus maximus) and brill (Scophthalmus rhombus) in the North Sea are important commercial bycatches for the Dutch commercial fleet. Brill is currently a data-limited species, which is why ICES for its

stock assessment uses a method based on trends in the commercial landings per unit of effort. For turbot more data are available and the advice for turbot is currently based on a full analytical assessment. Nevertheless, there is still considerable uncertainty in the input data which undermines the overall quality of the assessment. A new standardized survey with higher catch rates for large flatfish is developed to improve assessments for these species. For this reason a dedicated industry survey for turbot and brill was designed and implemented.

Simple

Date (Publication)
2020-06-11T00:00:00
Edition

20230321
Citation identifier
https://gis.ices.dk/geonetwork/srv/metadata/dc90367c-179f-4a2c-8917-6152d4a9a9dc
Presentation form
Digital table
Purpose

Data products are used by the ICES community (expert groups, scientists) and public users. Data are used for fish stock assessments and marine biology studies.
Status
On going
Point of contact
Organisation name Individual name Electronic mail address Role

ICES

ICES Data manager

datrasadministration@ices.dk

Distributor
Maintenance and update frequency
Continual
Theme

  • DATRAS

  • Netherlands BSAS

  • Trawl Survey

  • Fish age data

  • Catch per unit efforts

  • fish length composition

  • biology sample data

  • population composition

  • population distribution

  • Fish length data

  • ICES

  • Groundfish surveys

  • Turbot

  • Brill

  • Industry survey

  • Catch weights

  • length frequency distributions

  • sex

  • live weight

  • maturity
Place

  • Industry Survey

  • North Sea

  • Turbot

  • Brill

GEMET - INSPIRE themes, version 1.0

  • Species distribution
Access constraints
Other restrictions
Other constraints
no limitations to public access
Use constraints
Other restrictions
Other constraints

Available under the Creative Commons Attribution (CC-BY) License v4.0
Use limitation

Available under the Creative Commons Attribution (CC-BY) License v4.0
Use limitation

Data is available under the terms of the ICES Data Policy. (See: https://ices.dk/data/guidelines-and-policy/Pages/ICES-data-policy.aspx)

Spatial representation type
Text, table
Language
English
Character set
UTF8
Topic category
  • Biota
N
S
E
W
thumbnail


Begin date
2019 After
Reference system identifier
WGS84
Distribution format
Name Version

ZIP

1
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		http://datras.ices.dk

DATRAS home page

WWW:LINK-1.0-http--link

 		https://datras.ices.dk/Data_products/Download/Download_Data_public.aspx DATRAS Download page

WWW:LINK-1.0-http--related

 		https://data.ices.dk

ICES Data Portal

WWW:LINK-1.0-http--link

 		https://datras.ices.dk/WebServices/Webservices.aspx

DATRAS Web services

WWW:LINK-1.0-http--link

 		https://gis.ices.dk/geonetwork/srv/api/records/dc90367c-179f-4a2c-8917-6152d4a9a9dc/attachments/IGFS.png

IGFS.png
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-11-23
Pass
Yes
Statement

ICES is a receiver of Marine Data from national programmes and other marine institutes, therefore ICES is not the primary collection point of marine evidence that it holds and disseminates to the users of the data. Data are quality assured using internal and external programmes. For example, the national laboratories that take part in monitoring programmes related to contaminants and biological effects that submit information to ICES, subscribe to the Quality Assurance of Information for Marine Environmental Monitoring in Europe (QUASIMEME) or the Biological Effects Quality Assurance in Monitoring Programmes (BEQUALM) inter-laboratory proficiency-testing schemes and perform internal quality assurance. ICES operates through a network of scientific expert and advisory groups. These groups, and the processes they feed into, act as a quality check on the marine evidence, both in terms of how the evidence was gathered and how the evidence has been subsequently treated. The groups, in cooperation with regional programmes under the Regional Sea Conventions, set standards and guidelines for the collection, transmission and analysis of these data. In addition, the ICES Secretariat provides supplementary quality assurance through its internal programmes related to the different types of marine data collection datasets, which is feedback to the participating national and regional programmes. These internal and external programmes and procedures have been established over a period of 30 or more years. They continue to evolve and strive to reflect the best available practices in the collection and treatment of marine data relevant to the ICES community.

Metadata

File identifier
dc90367c-179f-4a2c-8917-6152d4a9a9dc XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2023-12-14T08:19:37.166Z
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

1.0
Metadata author
Organisation name Individual name Electronic mail address Role

ICES

ICES Data manager

accessions@ices.dk

Point of contact
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

Brill Catch per unit efforts Catch weights DATRAS Fish age data Fish length data Groundfish surveys ICES Industry survey Netherlands BSAS Trawl Survey Turbot biology sample data fish length composition length frequency distributions live weight maturity population composition population distribution sex
GEMET - INSPIRE themes, version 1.0
Species distribution

Provided by

Access to the portal

Associated resources

Not available