2005 - 2005 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : CHMR 2/05 (part of Western English Channel Groundfish Survey using Charter Vessels Bogey 1 and Carhelmar, Qtr 4 (FSS: CARHELMAR))
Carhelmar Beam trawl survey
This survey was undertaken by Cefas as part of the Western English Channel Groundfish Survey using Charter Vessels Bogey 1 and Carhelmar, Qtr 4 (FSS: CARHELMAR); This survey series ran from 1984 to 2013. The aim was to provide fisheries independent abundance indices of all age groups of sole and plaice which are used in assessment working groups to tune the ICES stock assessment and to estimate recruitment. The survey was undertaken annually. Fifty eight trawl stations on the main sole grounds in the English waters of the Western English Channel were fished and sampled. Surveys were carried out on chartered commercial fishing vessels with Cefas staff on board. Survey took place between 06/10/2005 and 20/10/2005 on Carhelmar Equipment used during this survey : - Beam Trawl 4m steel commercial 3/5 link mat flip up 75mm CE 40mm liner PORT - Beam Trawl 4m steel commercial 3/5 link mat flip up 75mm CE 40mm liner STAR Survey operations were undertaken on 60 stations 58 different species were caught on this survey
series
http://data.cefas.co.uk/#/View/10235/
function: order
CEFAS091885d0-6ba7-4848-9696-53772708b07b
http://www.cefas.co.uk/
eng
OGP
urn:ogc:def:crs:EPSG::4326
`http://data.cefas.co.uk/#/View/3930`_ .. _`http://data.cefas.co.uk/#/view/3930`: http://data.cefas.co.uk/#/View/3930
biota
revision
2011-03-25
publication
2008-06-01
publication
2008-06-01
-4.5
-3
50.75
49.75
revision
2010-05-18
revision
2010-05-18
2005-10-06T00:00:00.000Z
2005-10-20T00:00:00.000Z
publication
2020-06-30
annually
A number of changes to the survey grid, sampling procedure and gear have occurred over time and these are documented by Cefas. Data were originally collected and stored in spreadsheets. All Carhelmar data is stored on the Fishing Survey System (FSS). Biological were samples returned to the laboratory fro processing and age determination as required. Data has been extensively quality checked. When the survey was undertaken by the Carhelmar (survey reference prefixed as CHMR) the catch was processed separately by port and starboard beam, but on a few occasions a catch only from the one side was processed. In 2002 and 2004 the survey was undertaken on the Corystes research vessel, (survey reference prefixed as CORY) but only the one beam was used, however this was rigged with the same gear previously used by the Carhelmar. In 2003 both vessels were used. When the survey was conducted on the Carhelmar, the processing of the catch focused on the commercial species. All commercial fish species were measured. Non-commercial species were not always identified and measured. Benthic observations were made in some of the years from the port side beam. Biological age data were collected for sole and plaice. For more information regarding the availability of data for the survey-series refer to `https://www.cefas.co.uk/publications/techrep/ScienceTechnicalReportNo151.pdf`_ Species and Gear codelists are available via the additional information source field. .. _`https://www.cefas.co.uk/publications/techrep/sciencetechnicalreportno151.pdf`: https://www.cefas.co.uk/publications/techrep/ScienceTechnicalReportNo151.pdf
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
originator
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
custodian
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
pointOfContact
2020-06-30T13:09:18