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Acoustic Tagging

Acoustic Tagging. Jewfish Workshop 2006. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE. Aim. To examine the movement patterns of aggregating black jewfish. Acoustic Arrays. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE.

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Acoustic Tagging

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  1. Acoustic Tagging Jewfish Workshop 2006

  2. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Aim To examine the movement patterns of aggregating black jewfish

  3. Acoustic Arrays TASMANIAN AQUACULTURE & FISHERIES INSTITUTE VR2 Acoustic ‘listening stations’

  4. Acoustic Arrays TASMANIAN AQUACULTURE & FISHERIES INSTITUTE VR2 Acoustic ‘listening stations’ Arrays established at 2 large aggregation sites: Channel Point and Chambers Bay

  5. Acoustic Arrays TASMANIAN AQUACULTURE & FISHERIES INSTITUTE VR2 Acoustic ‘listening stations’ Arrays established at 2 large aggregation sites: Channel Point and Chambers Bay Arrays also established between Channel Point and Chambers Bay

  6. Darwin Chambers Bay Channel Point

  7. Acoustic Tagging TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish surgically implanted with acoustic tags

  8. Acoustic Tagging TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish surgically implanted with acoustic tags

  9. Acoustic Tagging TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish surgically implanted with acoustic tags 40 fish tagged at Channel Point between Dec 04 and Oct 2005 Size range 940-1220 mm TL

  10. Acoustic Tagging TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish surgically implanted with acoustic tags 40 fish tagged at Channel Point between Dec 04 and Oct 2005 Size range 940-1220 mm TL 44 fish tagged at Chambers Bay between Sept and Nov 2005 Size range 980-1250 mm TL

  11. Acoustic Tagging TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish surgically implanted with acoustic tags 40 fish tagged at Channel Point between Dec 04 and Oct 2005 Size range 940-1220 mm TL 44 fish tagged at Chambers Bay between Sept and Nov 2005 Size range 980-1250 mm TL All fish monitored until May 2006

  12. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Results 33/40 Fish detected at Channel Point

  13. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Results 33/40 Fish detected at Channel Point 22/44 Fish detected at Chambers Bay

  14. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Results 33/40 Fish detected at Channel Point 22/44 Fish detected at Chambers Bay No fish detected at both aggregations

  15. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Results 33/40 Fish detected at Channel Point 22/44 Fish detected at Chambers Bay No fish detected at both aggregations No fish detected at sites between aggregations

  16. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Channel PointStations along 20 m depth contour Channel Point Aggregation

  17. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 1st set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  18. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 1st set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  19. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 1st set of fish tagged at Channel Point Fish absent for seven months Nov 04 Mar 05 Aug 05 Dec 05 May 06

  20. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 1st set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  21. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 1st set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  22. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 1st set of fish tagged at Channel Point Fish absent for nine months Nov 04 Mar 05 Aug 05 Dec 05 May 06

  23. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 2nd set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  24. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 2nd set of fish tagged at Channel Point Fish absent for most part of 8 months (May to Dec) Nov 04 Mar 05 Aug 05 Dec 05 May 06

  25. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 3rd set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  26. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of 3rd set of fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  27. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of all fish tagged at Channel Point Nov 04 Mar 05 Aug 05 Dec 05 May 06

  28. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Fish Residency Presence of all fish tagged at Channel Point Spawning season Nov 04 Mar 05 Aug 05 Dec 05 May 06

  29. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Diurnal Patterns Diurnal cycle

  30. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Diurnal Patterns Diurnal cycle

  31. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Diurnal Patterns Diurnal cycle

  32. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Patterns Tide phase - All sites - January High Low High

  33. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Patterns Tide phase - All sites - January High Low High

  34. Site 3 Site 4 Site 5 TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Movement Early January tag detections

  35. Site 3 Site 4 Site 5 TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Movement Early January tag detections

  36. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Channel PointStations along 20 m depth contour Channel Point Aggregation

  37. Site 3 Site 4 Site 5 TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Movement Early January tag detections

  38. Site 3 Site 4 Site 5 TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Movement Site 5: Residence related to low tide

  39. Site 3 Site 4 Site 5 TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Movement Increase in residence time as tides go neap

  40. Site 3 Site 4 Site 5 TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Tidal Movement Site 4: Residence related to high tide

  41. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Conclusions • Black Jewfish may not mix between aggregations

  42. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Conclusions • Black Jewfish may not mix between aggregations • Fish absence at Channel Point may be linked to spawning

  43. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Conclusions • Black Jewfish may not mix between aggregations • Fish absence at Channel Point may be linked to spawning • Movement within Channel Point aggregation is linked to time of day and tidal cycle

  44. TASMANIAN AQUACULTURE & FISHERIES INSTITUTE Conclusions • Black Jewfish may not mix between aggregations • Fish absence at Channel Point may be linked to spawning • Movement within Channel Point aggregation is linked to time of day and tidal cycle • Modelling stills needs to occur to decipher information

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