Deveron
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SFCC member presentation from the 2023 annual biologists meeting.
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Deveron
- 1. Sarah Roebuck, Administrator Marcus Walters, River Operations Manager X2 Project Officers Richard Miller, Director Working with rivers training placement
- 2. A good year for Upper Deveron Smolt Production
- 3. A poor year for migration success Acoustic tracking with 3 tag types (v5, v6, v7) & manual tracking Low water years (2018 & 2022) = poor migration success. Predation? Delayed migration?
- 4. Piscivorous birds – monthly counts
- 5. 2022 Electrofishing • 45 sites - mainly timed • Mainstem - • Allt Deveron • Bogie • Isla • Forgue • Turriff • King Edward • Good distribution of fry • Parr numbers lower Fry – presence /absence Parr – presence /absence
- 6. Water quality; pollution, temperature, quantity • Constant dialogue with SEPA Rural Land use Unit • Reporting issues • Providing input on focus areas • Currently visiting King Edward, Bogie, Turriff & Forgue farms • Developing our own water sampling protocol • Responding to consultations • Improving buffers strips and riparian managment
- 7. Barrier Removal • Glen Keith – Chivas • King Edward - funding sourced • Historical fish pass work: • Davidston (Isla) • Auchintoul Salmon present above both!
- 8. Restoration – hands off strategy King Edward • Tree Planting • Habitat enhancement with LWD • Pull back embankments • Reform banks using wood and brash • Remove forestry • Reconnect flood plain / old channels • Funding for restoration officer • Landowner engagement / permission • Crooksmill lessons • Surveys by CBEC years apart showed how a burn can recover if given space and left alone • WTT Visit / Report • Importance of riparian zone –Habitat & Buffer
- 9. Project Deveron Counter – Acoustic Camera at Bridge of Alvah Estimate the total adult run PIT Array – detects PIT tagged juveniles and adults. Monitor juvenile and smolt survival Monitor adult marine survival Partnership between DBIRT, AST & MSS
- 10. Counter
- 11. 4th-15th July 12 Days 274 upstream >450mm
- 12. PIT Arrays • Arrays at Cabrach and Avochie • Pit Tags • Small • Cheap • No battery • ~2000 Parr tagged each Autumn • Smolt survival next spring • Returning Adults = Marine survival • Already detected winter parr movements
- 13. Thank you!