NWWCA Info Sheet

NWWCA Info Sheet

Please see the latest news sheet / flyer from the Association.        ...

Nenescape Phase II

Nenescape Phase II

I have created the following update on Nenescape following its successful award from HLF....

River Wensum - the battle continues

River Wensum - the battle continues

The group continues with its objection to the planned recycling plant in Lenwade, which t...

Eastern Regional Shield 2018

Eastern Regional Shield 2018

Please reserve the 16th Sep 2018 in your match diary, for the 2018 team event planned to...

Relief Channel Survey Report 2017

Relief Channel Survey Report 2017

Please find attached the 2017 Survey report for the Great Ouse Relief Channel, produ...

Middle Level System Survey Report 2017

Middle Level System Survey Report 2017

Please find attached the 2017 Survey report for the Middle Level System, produced by...

Response to Fracking

Response to Fracking

Some clubs have received letters from an anti fracking compagin group and have asked what...

Regional Forum Cambridge 15th Nov 2017

Regional Forum Cambridge 15th Nov 2017

  Angling Trust East of England Fisheries Forum November 15th 2017 Chesterton Sports...

EA-ESN-Surveys

EA-ESN-Surveys (24)

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

 

 

Wednesday, 22 July 2015 06:23

River Colne Essex Survey 2014

Written by

ea anglia east

This report provides a summary of the 2014 fish survey results in the River Colne 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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