1 Attachment(s) North East Fisheries Bulletin from the Environment Agency August 2011

Editor

The Salmon Atlas
River Tyne Counts

The upstream count for August 2011 was 5,771, the fifth highest in our records; the highest (10,430) being recorded in 2010. The highest daily counts were recorded on 3rd and 23rd August, with 1078 and 329 being recorded respectively. The 2011 count was 1,043 higher than the 15 year average (4728) but 704 lower the 5 year average (6475). The count for 2011 up to the end of August was 16,364 which is the fifth highest total for the period, the highest (23,894) being recorded last year. The upstream count for September up to approximately 10:00 on the 5th was 990.

The majority of the upstream counts were recorded during the period 6am to 4pm while the fewest counts were recorded during the period 5pm to 3am. This is quite different to what has been observed during Augsuts in previous years, with the majority of upstream counts being recorded between 11pm and 6am, although, 2008, shows a similar pattern to 2011 with the majority of upstream counts being recorded during the daylights hours. Daily average river flows during August this year and 2008 were frequently higher than those observed in years 2005 – 2007, 2009 and 2010. Considering this we can assume that greater numbers of counts are recorded during the day when flows are high, whilst during lower flows greater numbers of counts are recorded during the hours of darkness and the early morning when flows are low.

Further details of the daily upstream counts for 2011 and historic monthly counts can be found by following the link below:

Environment Agency - River Tyne fish counts


The largest daily upstream count during August was recorded conicided with a modest increase in river height. The spates on the 7th & 11th August resulted in almost no upstream counts being recorded. However, on the following days awhen the flows started to subside and water clear, upstream counts did increased but to only modest levels. Following the two spates, modest increases in flow did result in slight increases in the numbers of upstream counts recorded. There appeared to be very little association between river temperature and the upstream counts with daily counts increasing during periods of warming or cooling.

If you are not already aware, we have a system on the internet that will allow you to check river levels before you head out. Please follow the link below:

Environment Agency - River and sea levels


Angler Scale Sampling Programme 2011
We have received 90 scale samples during August, 71 coming from salmon and 19 from sea trout. Scale reading of the salmon samples have shown that just over three quarters came from fish returning to the river during the summer (scales showing + growth beyond the final winter); and a third of these samples came from grilse (one sea winter fish). The remaining salmon scale samples for August came from fish that returned to the river during the spring. The pattern of age classes sampled is slightly different to previous years with the a lower proportion coming from one sea winter fish but a larger proportion from early running multi sea winter fish. The sea trout samples for August were again dominated by one sea winter fish returning to spawn for the first time. The remaining sea trout samples were of fish returning to spawn for a second time.

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The Angler Scale Sampling Programme is part of the impact assessment into the construction of the Second Tyne Tunnel. Support of the Angler Scale Sampling Programme and Angler Logbook Scheme will ensure that these monthly updates will continue. Please remember we want samples from fish of all sizes not just the very small and the very large.

If you require more scale packets please drop me an email.

Many thanks for you support

Morton

The Angler Scale Sampling Programme is supported by:
 
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