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UK Biodiversity Indicator D1a, Fish size classes in the North Sea

This spreadsheet is the underlying data for the biodiversity indicator D1a, Fish size classes in the North Sea. Change in relative abundance of large fishes is likely to affect marine ecosystems...

1963 - 1963 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : CLIONE 13/1963 (part of CEFAS Historic surveys)

This survey was undertaken by Cefas as part of the CEFAS Historic surveys; ... Survey took place between 25/08/1963 and 04/09/1963 on Clione Equipment used during this survey : - Otter trawl...

1991 - 1996 Centre for Environment, Fisheries & Aquaculture Science (Cefas) North Sea Groundfish Survey, Qtr 4 (FSS: IBTS4E)

Approximately 70 core trawl stations are completed annually to provide distribution and stock composition estimates for fish species. Station, catch, length (all species) and biological data...

1964 - 1964 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : CLIONE 6/1964 (part of CEFAS Historic surveys)

This survey was undertaken by Cefas as part of the CEFAS Historic surveys; ... Survey took place between 17/04/1964 and 27/04/1964 on Clione Equipment used during this survey : - Engels...

1977 - Centre for Environment, Fisheries & Aquaculture Science (Cefas) North Sea Groundfish Survey, Qtr 3 (FSS: IBTS3E; NSGFS)

75 core trawl stations are completed annually, to provide distribution and stock composition estimates for fish species. Station, catch, length (all species) and biological data (selected...

2017 - 2017 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Cod End Mesh Size Trials in the SW Otter Trawl Fishery 2017/18 - Fisheries Science Partnership

Eleven days of sea trials comprising 40 tows were successfully completed on board the twin-rig otter trawler ‘Our Olivia Belle’ (BD277) in the Western English Channel in August 2017 allowing...

1954 - 1954 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : SLAN/17/1954 (part of CEFAS Historic surveys)

This survey was undertaken by Cefas as part of the CEFAS Historic surveys; ... Survey took place between 18/10/1954 and 22/10/1954 on Sir Lancelot Equipment used during this survey : - ...

2014 Marine Biological Association of the UK (MBA) Mothecombe Seine Net Fish Survey

On 08/11/2014 Work experience students used Seine nets to catch fish which they identified and measured the length of.

2009 - 2009 Centre for Environment, Fisheries & Aquaculture Science (Cefas) CCTV development on Western Irish Sea nephrops vessels 2009/10 - Fisheries Science Partnership

To develop a cost effective method in monitoring the amount of cod by-catch within the Irish Sea *Nephrops* fishery by using CCTV.

2014 Marine Biological Association of the UK (MBA) Mothecombe Seine Net Fish Survey

On 08/11/2014 Work experience students used Seine nets to catch fish which they identified and measured the length of.

2014 Marine Biological Association of the UK (MBA) Mothecombe Seine Net Fish Survey

On 08/11/2014 Work experience students used Seine nets to catch fish which they identified and measured the length of.

2017 - 2017 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Cod end configurations in the Farne Deeps 2017/18 - Fisheries Science Partnership

This work was carried out as part of the Fisheries Science Partnership (FSP) programme. The twin rig trawler *Nimrod * was chartered to undertake trials in a *Nephrops * ( *Nephrops norvegicus* )...

1953 - 1953 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : EHOLT/05/1953 (part of Historic Arctic Survey Series)

This survey was undertaken by Cefas as part of the Historic Arctic Survey Series; *Gadus morhua* (Atlantic Cod) stocks in the Barents Sea are currently at levels not seen since the 1950s. Causes...

1953 - 1953 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : EHOLT/03/1953 (part of Historic Arctic Survey Series)

This survey was undertaken by Cefas as part of the Historic Arctic Survey Series; *Gadus morhua* (Atlantic Cod) stocks in the Barents Sea are currently at levels not seen since the 1950s. Causes...

1952 - 1952 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Survey : EHOLT/03/1952 (part of Historic Arctic Survey Series)

This survey was undertaken by Cefas as part of the Historic Arctic Survey Series; *Gadus morhua* (Atlantic Cod) stocks in the Barents Sea are currently at levels not seen since the 1950s. Causes...

2012- ongoing, North Eastern Inshore Fisheries and Conservation Authority, King Scallop Shell Widths from Offshore Scallop Survey

2012- ongoing, King Scallop shell widths and by-catch from offshore scallop survey, from North Eastern Guardian III and industry vessels

2012- ongoing, North Eastern Inshore Fisheries and Conservation Authority, King Scallop Shell Widths from Offshore Scallop Survey

2012- ongoing, King Scallop shell widths and by-catch from offshore scallop survey, from North Eastern Guardian III and industry vessels

2012- ongoing, North Eastern Inshore Fisheries and Conservation Authority, King Scallop Shell Widths from Offshore Scallop Survey

2012- ongoing, King Scallop shell widths and by-catch from offshore scallop survey, from North Eastern Guardian III and industry vessels

2005 - 2005 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Selectivity of hake gill nets in the Southwest fishery 2005/06 - Fisheries Science Partnership

To examine the catch composition and selectivity of a range of static gears for hake in the southwest fisheries. FSP Programme 8 demonstrated the selectivity characteristics of 120mm mesh gill...

2004 - 2004 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Gear selectivity in the Irish Sea 2004/05 - Fisheries Science Partnership

To examine the effect on catches of using 80mm and 110mm cod-ends in the eastern and western Irish Sea plaice fishery using twin-rig otter trawls. To investigate the bycatch of cod in the eastern...