Evidence + Measures Tidal Ribble Water Bodies
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17/02/2016 Identifying causes of failure and selecting measures operationally 1 Evidence + Measures Phase 3: Tidal Ribble Water Bodies Causes Workshop 2, 10 July 2012 Savick Brook – Coarse Fish – Causes of Failure Trying to work out the cause of poor fish in Savick Brook By Victor Aguilera, Anne-Marie Quibell, Paul Hulme, Natalie Phillips & Nick Rukin For more details contact: [email protected] [email protected] [email protected] [email protected] Prepared by P Hulme and N Rukin pjHYDRO Copyright and status 2 Copyright This document (set of slides) contains data and information licensed to Environment Agency and provided by the Environment Agency to pjHYDRO Limited and to RUKHYDRO Limited. © Environment Agency – February, 2016. All rights reserved. This document may be reproduced with prior permission of the Environment Agency. Document Status Produced by pjHYDRO Limited for Defra and released to the Environment Agency for use at the Evidence + Measures Phase 3, Causes Workshop 2, 10 July 2012. Working document provided for the use of stakeholders at workshop. (Hence there may be minor errors, e.g. errors in figure numbering.) Reviewed by the Environment Agency 2016. Dissemination Status Reviewed and approved for external release by Defra and the Environment Agency 2016. 1 17/02/2016 Contents 3 1. Fish Surveys 2. Rheophillic Fish 3. Limnophillic Fish 4. Eels 5. Predatory Fish 6. Summary 6. Approach C 1a. Fish Surveys 4 Surveys in 2001 ( ), (2004) and 2011 88003569 OS maps: © Environment Agency copyright and/or database rights 2015. © Crown copyright and database rights 2011 Ordnance Survey 100024198. 2 17/02/2016 5. Approach B 1b. Fish Survey Data 5 Location NGR Easting Northing NFCS Grade Fish Present Rheo Limno Eels Predator Savick Brook Electric Fishing Results May 2001 Savick Brook, M6 Bridge SD556332 355600 433200 F F F F Stoneloach (10's), Sticklebacks (1's), Chub (1414.14g), Dace (67.34g), Eels (370.37g), Flounder Savick Brook, Migery Lane SD551327 355100 432700 B F B F (134.68g), S/loach (10's), S/backs (10's) Chub (354.48g), Eels (283.58g), Flounder (141.79g), Savick Brook, Sharoe Green SD542321 354200 432100 C F C F S/Backs (100's), S/ loach (10's) Extensive Survey in Chub (493.82g), Dace (24.69g), Roach (65.84g), Gudgeon 2001 before Ribble (6.17g), Flounder (45.26g), Barbel (102.88g), Perch Savick Brook, Haslam Park SD517311 351700 431100 C D C D (41.15g), Eels (65.84g), S/loach (10's), S/backs (10's) Link Chub (914.28g), Dace (28.57g), Eel (142.85g), Flounder Savick Brook, Barry Ave, off Cottam Ave SD511312 351100 431200 B F C F (85.71g), S/loach (1's), S/backs (10's) Chub (541.58g), Dace (23.21g), Roach (58.02g), Eels (29.01g), Perch (29.01g), Flounder (96.71g), S/backs Savick Brook, Lea Road SD499309 349900 430900 C D E E (10's) Chub (46.29g), Dace (7.71g), Roach (7.71g), Eels (462.96g), Flounder (61.72g), S/loach (1's), S/backs Savick Brook, Ashton & Lea Golf Course SD494307 349400 430700 E E B F (10's), Minnow s (1's) Chub (90.22g), Flounder (150.37g), Eel (488.72g), S/ loach Sharoe Brook, Tulketh High School SD518316 351800 431600 D F B F (10's), S/ backs (100's) Savick Brook Electric Fishing Results May 2004 Savick Brook, Londenderry Bridge SD568339 356800 433900 F F F F Sticklebacks (100's) Eels (127.60g), Minnow s (10's), Stoneloach (10's), Limited Survey in Savick Brook, M6 Bridge SD556332 355600 433200 F F D F Sticklebacks (100's) Savick Brook, Sharoe Green SD542321 354200 432100 F F F F Stoneloach (10's) 2004 Savick Brook Electric Fishing Results September 2011 Savick Brook, off Fernhalgh Lane SD5555232842355552 432842 F F F F Eels (4.20g), S/backs (14), Stone lach (15) Chub (107.18g), Dace (7.20g), Roach (3.54), Eels Savick Brook, Preston Golf Course SD5444832449354448 432449 D E D F (91.99g), S/loach (12), S/backs (39), Minnow (2) Savick Brook, Sharoe Green SD5420032100354200 432100 E F B F Chub (29.3g), Eels (321.67g) Chub (27.97), Gudgeon (10.98g), Roach (10.67g), Eels Slightly more Savick Brook, Haslam Park SD5169931110351699 431110 E E F F (40.36g), Stone loach (3), S/backs (3), Bullhead (1) extensive in 2011 Chub (54.92g), Dace (17.22g), Gudgeon (2.96g), Stone Savick Brook, Barry Ave off Cottam Ave SD5106631167351066 431167 D E F F loach (6) Source of Data: Environment Agency raw data processed for this project 2. Rheophillic Fish 2a. Rheophillic Fish (Flowing Water) 6 Downstream Changes in Fish on Savick Brook - Rheophillic Fish 6 May-01 May-04 Barry Avenue (d/s Sharoe Brook) Migery Lane Sep-11 5 4 Lea Road Haslam Park Sharoe Green (d/s Eaves, u/s Sharoe) (d/s Sandy Brk) Preston Golf Course 3 (u/s Sandy Brook) NFCS Grade (A=6, F=1) Grade(A=6, NFCS 2 Ashton & Lea Golf Course M6 Bridge 1 Significant decline in Rheophillic Fish since 2001 (Ribble Link constructed 2002) 0 348000 349000 350000 351000 352000 353000 354000 355000 356000 357000 358000 Easting Source of Data: Environment Agency raw data processed for this project 3 17/02/2016 2. Rheophillic Fish 2b. Rheophillic Fish & WQ (Downstream Changes) 7 Downstream Changes on Savick Brook - Rheophillic Fish & WQ in 2001 15 May-01 ∑ WFD Scores for DO%, NH4 & BOD (out of 15) ∑ WFD Scores for DO%, NH4 & BOD (out of 15) Sharoe Brook ptc with Sandy Brook 12 Ribble Link Canal at Lea Road Grimsargh Rd Bridge Eaves Brook 9 ptc with Eaves Brook WFD Water Quality Status ∑WFD scores DO, BOD and NH4-N each out of 5 where 5=High, 4=Good, 3=Moderate, 2=Poor, 1=Bad. So totalled 15=High, 12=Good, 6 Barry Avenue 9=Moderate, 6=Poor and 3=Bad. (d/s Sharoe Brook) Migery Lane Lea Road Haslam Park Sharoe Green 3 (d/s Eaves, u/s Sharoe) (d/s Sandy Brk) Drop in Fish in 2001 NFCS Grade (A=6, F=1) & WFD Water Quality Status Quality WFD & F=1) Water NFCS Grade(A=6, plausibly related to WQ M6 Bridge Ashton & Lea Golf Course 0 348000 350000 352000 354000 356000 358000 360000 Easting Source of Data: Environment Agency raw data processed for this project 2. Rheophillic Fish 2c. Rheophillic Fish & WQ (Changes over Time) 8 DownstreamDownstream Changes Changes in Fish in Wateron Savick Quality Brook on Savick- Rheophillic Brook Fish 6 May-01 14 May-04 Barry Avenue (d/s Sharoe Brook) Migery Lane Sep-11 5 ptc Sandy Brook 12 Ribble Link Canal at Lea Grimsargh Rd Bridge 104 RdLea Road Haslam Park Sharoe Green (d/s Eaves, u/s Sharoe) (d/s Sandy Brk) ptc Eaves Brook Preston 8 Golf Course 3 (u/s Sandy Brook) Although fish numbers fell from 6 2001 to 2011, WQ has improved in that period. Suggests other cause. NFCS Grade (A=6, F=1) Grade(A=6, NFCS 2 4 Ashton & Lea Golf Course WFD Water Quality Status M6 Bridge 1 ∑WFD scores DO, BOD and NH4-N each WFD Water Quality Quality Status Phosphate)(Excluding Water WFD out of 5 where 5=High, 4=Good, 2 3=Moderate, 2=Poor, 1=Bad. So totalled 15=High, 12=Good, 9=Moderate, 6=Poor and 3=Bad. 0 348000 349000350000350000 351000352000352000 354000353000 354000356000355000 356000358000357000 360000358000 Easting Source of Data: Environment Agency raw data processed for this project 4 17/02/2016 3. Limnophillic Fish 3. Limnophillic Fish (Slack Water) 9 Downstream Changes in Fish on Savick Brook - Limnophillic Fish 6 May-01 May-04 Sep-11 5 Limnophillic Fish also decline from 2001, WQ effect less clear. 4 Haslam Park Lea Road (d/s Eaves, u/s Sharoe) 3 Preston Golf Course NFCS Grade (A=6, F=1) NFCS Grade(A=6, 2 (u/s Sandy Brook) Ashton & Lea Golf Course Migery Lane 1 Barry Avenue Sharoe Green M6 Bridge (d/s Sharoe Brook) (d/s Sandy Brk) 0 348000 349000 350000 351000 352000 353000 354000 355000 356000 357000 358000 Easting Source of Data: Environment Agency raw data processed for this project 4. Eels 4. Eels 10 Downstream Changes in Fish on Savick Brook - Eels 6 Eels declined after 2001, some hint May-01 of similar WQ effects upstream May-04 Migery Lane Sep-11 5 Ashton & Lea Golf Course Haslam Park (d/s Eaves, u/s Sharoe) 4 Barry Avenue Sharoe Green (d/s Sharoe Brook) (d/s Sandy Brk) Preston Golf Course 3 (u/s Sandy Brook) Lea Road NFCS Grade (A=6, F=1) NFCS Grade(A=6, 2 1 M6 Bridge 0 348000 349000 350000 351000 352000 353000 354000 355000 356000 357000 358000 Easting Source of Data: Environment Agency raw data processed for this project 5 17/02/2016 5. Predatory Fish 5. Predatory Fish 11 Downstream Changes in Fish on Savick Brook - Predatory Fish 6 Eels declined after 2001, some hint May-01 of similar WQ effects upstream May-04 Sep-11 5 4 Haslam Park (d/s Eaves, u/s Sharoe) 3 Lea Road NFCS Grade (A=6, F=1) NFCS Grade(A=6, 2 Preston Golf Course (u/s Sandy Brook)Migery Lane 1 Ashton & Lea Barry Avenue Sharoe Green M6 Bridge (d/s Sharoe Brook) (d/s Sandy Brk) Golf Course 0 348000 349000 350000 351000 352000 353000 354000 355000 356000 357000 358000 Easting Source of Data: Environment Agency raw data processed for this project 6. Summary 6. Summary 12 . Significant decline in all fish since 2001 survey; .