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State of fish stocks in the Northeast Atlantic, the North Sea and the Baltic Sea

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State of fish stocks in the Northeast Atlantic, the North Sea and the Baltic Sea

  1. 1. State of Fish Stocks in NE Atlantic, North Sea and Baltic Sea By Eskild Kirkegaard, ICES ACOM Chair Seminar “State of Fish Stocks in European Waters”, Brussels, July 14, 2015)
  2. 2. Stock Categories 1 Stocks with an accepted analytical assessment and forecast for MSY MSY approach 2 Stocks with an analytical assessment and forecast accepted for trends only MSY approach 3 Stocks with survey-based assessments indicating trends Precautionary approach MSY approach being developed 4 Stocks with reliable time-series of catch data to approximate MSY Precautionary approach MSY approach being developed 5 Only catch or landings available Precautionary approach 6 Only landings available and largely discarded Precautionary approach • Each category has several available methods dependent on stock status.
  3. 3. ICES MSY advice rule (Category 1 and 2 stocks) ICES bases its MSY approach on attaining a fishing mortality rate at or below FMSY. In this approach, both fishing mortality and biomass reference points are used: these reference points are FMSY and BMSY-trigger. BMSY-trigger is a biomass reference point that triggers a cautious response. ICES approach does not include a MSY biomass target (BMSY).
  4. 4. Stock status Stock size relative to BMSY-trigger Fishing mortality relative to FMSY
  5. 5. ECOREGIONS •Iceland and East Greenland Seas •Barents Sea •Faroe Plateau Ecosystem •Norwegian Sea • Celtic Sea and West of Scotland • North Sea • Bay of Biscay and Iberian Waters • Baltic Sea •Oceanic northeast Atlantic
  6. 6. Bay of Biscay & Iberian ecoregion IBERIA (VIIIc, IXa): • Hake • Anglerfish (pisc.) • Anglerfish (budeg.) • Megrim (whiff.) • Megrim (bosc.) • Sardine BAY OF BISCAY: • Sole
  7. 7. Bay of Biscay & Iberian ecoregion • Hake: Southern • Anglerfish (pisc.) • Anglerfish (budeg.) • Megrim (whiff.) • Megrim (bosc.) • Sole: Bay of Biscay • Sardine: Cantabrian Sea, Atlantic Iberian Waters
  8. 8. Celtic Sea & West, Southwest Ireland • Cod • Haddock • Herring • Whiting • Plaice • Sole West of Scotland & Rockall • Cod (VIa; VIb) • Haddock (Rockall) • Herring (Via, VIIbc) • Whiting (VIa; VIb) • Megrim (IVa-VIa; VIb) Irish Sea • Herring • Sole Celtic Seas ecoregion Sea bass (IVbc, VIIa, VIId-h
  9. 9. Celtic Seas ecoregion • Cod: West of Scotland • Cod: Eastern English Channel and Southern Celtic Seas • Sea bass: Central and South North Sea, Irish Sea, English Channel, Bristol Channel, Celtic Sea • Haddock: Southern Celtic Seas and English Channel • Haddock: Rockall • Whiting: Southern Celtic seas and Eastern English Channel
  10. 10. Celtic Seas ecoregion • Megrim: North Sea & West of Scotland • Plaice: Irish Sea • Plaice: Celtic Sea • Sole: Celtic Sea • Sole: Irish Sea • Sole: Southwest of Ireland
  11. 11. Celtic Seas ecoregion • Herring: West of Scotland & Ireland • Herring: Irish Sea • Herring: Celtic Sea
  12. 12. Celtic Seas ecoregion
  13. 13. Celtic Seas ecoregion Plaice: Divisions VIIh–k Cod: Irish Sea Sea bass: IVbc, VIIa, VIId-h Cod: West of Scotland
  14. 14. Celtic Seas ecoregion Whiting: West of Scotland Herring: West of Scotland and Ireland
  15. 15. North Sea ecoregion NORTH SEA: • Cod: IV, Skagerrak, VIId • Haddock: IV, Skagerrak • Whiting: IV, VIId • Saithe: IV, IIIa, VI • Plaice: IV • Sole: IV • Cod: Kattegat • Whiting: Skagerrak & Kattegat • Plaice: Skagerrak • Plaice: SD 21-23 • Sole: Skagerrak, Kattegat & SD 22-24 Brill, Dab, Flounder, Lemon sole, Turbot (IV; IIIa), Witch Short lived: Sandeel, Norway pout, Sprat (IV, IIIa) Nephrops EASTERN CHANNEL • Plaice: VIId • Sole: VIId
  16. 16. North Sea ecoregion • Cod: North Sea, Eastern English Channel & Skagerrak • Cod: Kattegat • Haddock: West of Scotland, North Sea and Skagerrak • Whiting: North Sea & Eastern English Channel • Saithe: West of Scotland, North Sea, Skagerrak and Kattegat
  17. 17. North Sea ecoregion • Plaice: Eastern English Channel • Plaice: North Sea & Skagerrak • Sole: Eastern English channel • Sole: Kattegat & Skagerrak • Sole: North Sea
  18. 18. North Sea ecoregion • Nephrops: North Sea, Skagerrak, and Kattegat
  19. 19. North Sea ecoregion • Herring North Sea • Sprat North Sea • Sprat Skagerrak & Kattegat
  20. 20. North Sea ecoregion
  21. 21. North Sea ecoregion North Sea cod Plaice North Sea
  22. 22. Baltic ecoregion • Cod SD 22-24 • Cod SD 25-32 HERRING: • Bothnian Bay • Bothnian Sea • Central Baltic • Gulf Riga • Western Baltic, IIIa Sprat SD 22-32 Flatfishes Plaice, Brill, Dab, Flounder, Turbot Salmon & Trout
  23. 23. Baltic ecoregion 0 50 100 150 200 250 300 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Biomassind.≥30cm(Kg/h) Stock size indicator 0 0.2 0.4 0.6 0.8 1 1.2 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Catches/Biomassind.≥30cm) Harvest rate Western Baltic Sea cod Eastern Baltic Sea cod
  24. 24. Baltic ecoregion
  25. 25. Baltic ecoregion Herring in Western Baltic, Skagerrak and Kattegat Flounder: Central Baltic (subdiv. 24 & 25)
  26. 26. Northeast Arctic stocks
  27. 27. Widely distributed and migratory stocks
  28. 28. Widely distributed and migratory stocks Hake: Northern
  29. 29. General trend in stock size and exploitation
  30. 30. General trend in stock size and exploitation
  31. 31. General trend in stock size and exploitation • Fishing mortalities have declined towards FMSY • Stocks are increasing
  32. 32. Thank you for your attention

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