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East of England Forum Essex 14th June 20...

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Eastern Regional Shield 2018 Entry and Information Sheet

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Eastern Region Shield 2018 As announced last year, I have secured the River Ouse in and a...

WWG meeting 10th April 2018

WWG meeting 10th April 2018

Minutes from the meeting which took place at Taverham Mills Fishery 10th April 2018 The m...

Ely Ouse Survey Report 2017

Ely Ouse Survey Report 2017

Please find attached the 2017 Survey report for the Ely Ouse, produced by Justin Mou...

Wensum riverbed sediments and downstream phosphorus concentration study

Wensum riverbed sediments and downstream...

Following further studies from the Environment Sciences team at UEA led by Richard Cooper...

River Witham Survey Report 2017

River Witham Survey Report 2017

Please find attached the 2017 Survey report for the River Witham, produced by Jake R...

River Glen Survey Report 2017

River Glen Survey Report 2017

Please find attached the 2017 Survey report for the River Glen, produced by Jake Ree...

River Welland Survey Report 2017

River Welland Survey Report 2017

Please find attached the 2017 Survey report for the River Welland, produced by Jake...

EA-ESN-Surveys

EA-ESN-Surveys (25)

Tuesday, 05 September 2017 10:42

River Bure Central Survey Report 2016

Written by

ea anglia east

Please see the attached report from the surveys undertaken in 2016 on the Central River Bure.

Click the ‘download attachment’ link below to download this report as a PDF

East Anglia
Environment Agency,
Dragonfly House, 2 Gilders Way, Norwich, NR3 1JB

cid:image006.png@01D2B9E1.D9B53F80

 

 

 

 

Tuesday, 05 September 2017 12:58

River Wensum Survey Report 2016

Written by

ea anglia east

Please see the attached report from the surveys undertaken in 2016 on the River Wensum.

Click the ‘download attachment’ link below to download this report as a PDF

East Anglia
Environment Agency,
Dragonfly House, 2 Gilders Way, Norwich, NR3 1JB

cid:image006.png@01D2B9E1.D9B53F80

 

 

 

 

Wednesday, 30 August 2017 07:26

Broads Hydro-Acoustic Surveys 2016

Written by

ea anglia east

Notes for use of this data.  

These data represent a snapshot of the fish distribution along a river at the time of survey. Surveys capitalise on the natural distribution of fish during the hours of darkness.

Fish density.

The value shown for fish density represents the number of fish per 1000 m3 of water sampled. The colour of the circle denotes the fish density as described in the map legend. The volume of water sampled by the acoustic beam broadly depends on the channel profile and boat speed If the total volume sampled is less than 1000 m3 then the calculated fish density does not represent the actual fish density. Consequently within the data set a value of 0.0 would indicate insufficient sample volume.  Conversely a fish density value of 0.1 or higher indicates that sample volume is sufficient. In most cases insufficient sample volume is a consequence of channel width, depth and / or extensive weed growth.  

Fish size research shows that the strength of a return echo relates to the size of the object producing the return.
The equipment used during surveys is capable of recording return echoes from objects less than 3 mm in size. Objects providing return echoes of this size could include reed stems, weed fronds, fish fry and suspended debris. To avoid erroneous fish counts and density value, return echoes are filtered during post processing. Fish density value reflects this filtering and the return echo strength chosen ensures that the minimum theoretical fish size counted is 100 mm.

Click the ‘download attachment’ link below to download this report as a PDF

Jeff Compton Bsc Msc

Environment Monitoring officer (A&R) Fish

East Anglia
Environment Agency,
Dragonfly House, 2 Gilders Way, Norwich, NR3 1JB

cid:image006.png@01D2B9E1.D9B53F80

 

 

 

 

Wednesday, 30 August 2017 07:20

Broads Hydro-Acoustic Surveys 2015

Written by

ea anglia east

 Notes for use of this data.  

These data represent a snapshot of the fish distribution along a river at the time of survey. Surveys capitalise on the natural distribution of fish during the hours of darkness.

Fish density.

The value shown for fish density represents the number of fish per 1000 m3 of water sampled. The colour of the circle denotes the fish density as described in the map legend. The volume of water sampled by the acoustic beam broadly depends on the channel profile and boat speed If the total volume sampled is less than 1000 m3 then the calculated fish density does not represent the actual fish density. Consequently within the data set a value of 0.0 would indicate insufficient sample volume.  Conversely a fish density value of 0.1 or higher indicates that sample volume is sufficient. In most cases insufficient sample volume is a consequence of channel width, depth and / or extensive weed growth.  

Fish size research shows that the strength of a return echo relates to the size of the object producing the return.
The equipment used during surveys is capable of recording return echoes from objects less than 3 mm in size. Objects providing return echoes of this size could include reed stems, weed fronds, fish fry and suspended debris. To avoid erroneous fish counts and density value, return echoes are filtered during post processing. Fish density value reflects this filtering and the return echo strength chosen ensures that the minimum theoretical fish size counted is 100 mm.

Click the ‘download attachment’ link below to download this report as a PDF 

Jeff Compton Bsc Msc

Environment Monitoring officer (A&R) Fish

East Anglia
Environment Agency,
Dragonfly House, 2 Gilders Way, Norwich, NR3 1JB

cid:image006.png@01D2B9E1.D9B53F80

 

 

 

 

Sunday, 22 January 2017 06:45

River Chelmer Survey 2016

Written by

ea anglia east

This report provides a summary of results from recent fish population surveys on the River Chelmer between Great Dunmow and Chelmsford. The surveys were carried out to assess the health of the river and enable successful management of our principal fisheries.

Click the ‘download attachment’ link below to download this report as a PDF

 

Jon Diss

Environmental Monitoring Officer (Analysis & Reporting)

Environment Agency

Kelvedon Office

Rivers House

Threshelfords Business Park

Inworth Road

Kelvedon

CO5 9SE

( Int. 46006

(Ext. 0208 474 6006

 

 

Sunday, 22 January 2017 06:42

River Gipping Survey 2016

Written by

ea anglia east

This report provides a summary of results from recent fish population surveys on the River Gipping between Stowmarket and Ipswich. The surveys were carried out to assess the health of the river and enable successful management of our principal fisheries.

Click the ‘download attachment’ link below to download this report as a PDF

Jon Diss

Environmental Monitoring Officer (Analysis & Reporting)

Environment Agency

Kelvedon Office

Rivers House

Threshelfords Business Park

Inworth Road

Kelvedon

CO5 9SE

( Int. 46006

(Ext. 0208 474 6006

 

 

Sunday, 22 January 2017 06:39

River Stour (Middle) Survey 2016

Written by

ea anglia east

This report provides a summary of results from recent fish population surveys on the River Stour between Sudbury and Higham. The surveys were carried out to assess the health of the river and enable successful management of our principal fisheries

Click the ‘download attachment’ link below to download this report as a PDF

Jon Diss

Environmental Monitoring Officer (Analysis & Reporting)

Environment Agency

Kelvedon Office

Rivers House

Threshelfords Business Park

Inworth Road

Kelvedon

CO5 9SE

( Int. 46006

(Ext. 0208 474 6006

 

 

Friday, 22 July 2016 06:34

River Stour (Lower) Suffolk Survey 2015

Written by

ea anglia east

This report provides a summary of the 2015 fish survey results in the lower River Stour and an insight to the current fish population status of the river

Click the ‘download attachment’ link below to download this report as a PDF

Jon Diss

Environmental Monitoring Officer (Analysis & Reporting)

Environment Agency

Kelvedon Office

Rivers House

Threshelfords Business Park

Inworth Road

Kelvedon

CO5 9SE

( Int. 46006

(Ext. 0208 474 6006

 

 

Thursday, 22 December 2016 06:31

Chelmer and Blackwater Navigation Essex Survey 2016

Written by

ea anglia east

This report provides a summary of results from recent fish population surveys on the Chelmer & Blackwater Navigation between Chelmsford and Langford. The surveys were carried out to assess the health of the river and enable successful management of our principal fisheries.  

Click the ‘download attachment’ link below to download this report as a PDF

Jon Diss

Environmental Monitoring Officer (Analysis & Reporting)

Environment Agency

Kelvedon Office

Rivers House

Threshelfords Business Park

Inworth Road

Kelvedon

CO5 9SE

( Int. 46006

(Ext. 0208 474 6006

 

 

Friday, 22 July 2016 06:27

River Stour (Upper) Suffolk Survey 2015

Written by

ea anglia east

 This report provides a summary of the 2015 fish survey results in the River Stour (Upper) and an insight to the current fish population status of the river.

 Click the ‘download attachment’ link below to download this report as a PDF

 

Jon Diss

Environmental Monitoring Officer (Analysis & Reporting)

Environment Agency

Kelvedon Office

Rivers House

Threshelfords Business Park

Inworth Road

Kelvedon

CO5 9SE

( Int. 46006

(Ext. 0208 474 6006

 

 

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