Unknown
Environment Agency North West
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Warrington, UK
In:
dis@fba.org.uk
|
http://aquaticcommons.org/id/eprint/8557
|
1256
|
2012-12-20 21:10:56
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8557
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Environment Agency, UK (Freshwater Biological Association)
Publication Date:
2021-07-03
Description:
This report summarises the findings of a series of electric-fishing surveys carried out at four sites on the River Ribble from September 1997 to September 1998. The aims of these surveys were to assess the impact on juvenile salmonids of a pollution incident involving Synthetic Pyrethrin (SP) that occurred near High Birkwith I (SD 802 767) in September 1997.One of these sites was 2.65km upstream of the pollution whilst the remaining three were at varying distances downstream. Data was collected during surveys of the River Ribble in 1992, 97 and 98. The 1997 and 1998 surveys were carried out specifically to monitor for any possible effects of the SP discharge.Data are shown as grades derived from the National Fisheries Classification scheme (NFC). Results are given for the four salmonid life stages; 0+ trout, 〉0+ trout, 0+ salmon, 〉0+ salmon and also Total Salmonids.
Description:
Environment Agency Archives North West
Description:
First year report
Keywords:
Fisheries
;
Limnology
;
England
;
Ribble Catchment
;
River Fisheries
;
Salmon fisheries
;
Fishery surveys
;
Biological surveys
;
Electric fishing
;
Population density
;
Juveniles
;
Pollution effects
Repository Name:
AquaDocs
Type:
monograph
Format:
application/pdf
Format:
application/pdf
Format:
38
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