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F MSY is good

F MSY is good. 0.9 F MSY is better. 0.9 MSY is best. Towards Healthy Fish Stocks and Profitable Fisheries in Europe. Rainer Froese IFM-GEOMAR, Kiel, Germany rfroese@ifm-geomar.de EC, 22 June 2010, Brussels. What is a Stock?. A stock is the exploited part of a population of fishes

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F MSY is good

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  1. FMSY is good 0.9 FMSY is better 0.9 MSY is best

  2. Towards Healthy Fish Stocksand Profitable Fisheriesin Europe Rainer Froese IFM-GEOMAR, Kiel, Germany rfroese@ifm-geomar.de EC, 22 June 2010, Brussels

  3. What is a Stock? • A stock is the exploited part of a population of fishes • The total weight of the stock is called biomass (B) • SSB is the Spawning Stock Biomass, i.e., the total weight of the adults

  4. SardineBiscay and off Portugal ICES 2010

  5. What is MSY? • MSY is the Maximum Sustainable Yield • MSY is the maximum catch that the stock can deliver on a regular basis • Catches above MSY shrink the stock

  6. Cod, Eastern Baltic MSY Froese & Proelß Fish & Fisheries 2010

  7. What is BMSY? • BMSY is the stock size that can produce the maximum sustainable yield • BMSY is the central reference point of the Law of the Sea and UNFSA (1995) with regard to fisheries Can produce MSY Can not produce MSY BMSY Depleted Stock biomass B Unfished

  8. Cod, Eastern Baltic BMSY MSY Froese & Proelß Fish & Fisheries 2010

  9. What the hell is F? • F is the rate by which fish are removed from the stock by fishing (fishing mortality) • F can be translated into the percentage of the stock that is taken by the fishery

  10. What is FMSY? • FMSY is the fishing mortality that will lead to BMSY • F < FMSYleads to stock sizes above BMSY • F > FMSYshrinks the stock below BMSY Greenland halibut Cod, herring Sandeel Froese & Proelß Fish & Fisheries 2010

  11. Cod, Eastern Baltic BMSY FMSY Froese & Proelß Fish & Fisheries 2010

  12. What is the biomass of European stocks relative to BMSY?

  13. Biomass of European Stocks Froese & Proelß Fish & Fisheries 2010

  14. What is the fishing mortality of European stocks relative to FMSY

  15. Fishing Pressure on European Stocks Froese & Proelß Fish & Fisheries 2010

  16. What are the landings relative to MSY?

  17. Landings and Biomass of European Stocks in 2007 Froese et al., submitted

  18. Will Europe be able to rebuild its stocks by 2015?

  19. Rebuilding European Fish Stocks Average size of 54 European fish stocks (bold blue line). The upper arrow indicates the path, if 75% of the stocks were to reach the internationally agreed target in 2015. The lower arrow shows the current trend. Froese & Proelß Fish & Fisheries 2010

  20. Will Europe be able to rebuild its stocks by 2015?NO

  21. Will Europe be able to at least reduce fishing mortality to FMSY by 2015?

  22. Fishing Pressure on European Fish Stocks Damanaki proposal Average fishing pressure on 54 European fish stocks. The lower arrow indicates the path if 75% of the stocks were to be fished at the maximum sustainable rate in 2015. However, with the current trend that target will be missed by more than 30 years. Froese & Proelß Fish & Fisheries 2010

  23. Will Europe be able to at least reduce fishing mortality to FMSY by 2015?YESIf the Damanaki proposal succeeds

  24. FMSY is good because it leads to the biomass that can produce the maximum sustainable yield (Damanaki proposal) 0.9 FMSY is better 0.9 MSY is best

  25. Why is 0.9 FMSY better than FMSY? • Because it increases stock size to 30% above BMSY • Because larger stock size means lower cost of fishing -> Maximum Economic Yield • Because international agreements (UNFSA 1995) asks for Ftarget < FMSY • Because the precautionary principle demands a safety distance to FMSY and BMSY

  26. FMSY is good because it leads to the biomass that can produce the maximum sustainable yield (Damanaki proposal) 0.9 FMSY is better because it leads to larger stocks, larger profits, more safety, and compliance with international agreements 0.9 MSY is best

  27. Why is 0.9 MSY better than 0.9 FMSY? • Because 0.9 MSY has all the advantages of 0.9 FMSY In addition • 0.9 MSY avoids exceeding MSY(FMSY will do that, thereby creating an incentive for overcapacity) • 0.9 MSY provides stability for the industry (same landings as long as B > BMSY) • 0.9 MSY is a simple, transparent rule that is easily communicated to stakeholders

  28. 0.9 MSY Harvest Control Rule Move stocks here. Landings may then be 60% higher Froese et al., submitted

  29. FMSY is good because it leads to the biomass that can produce the maximum sustainable yield (Damanaki proposal) 0.9 FMSY is better because it leads to larger stocks, larger profits, more safety, and compliance with international agreements 0.9 MSY is best Because, in addition to the previous, it avoids overcapacity, provides stability for the industry, and is easy to understand Thank You Rainer Froese, IFM-GEOMAR

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