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Fishing smarter: How harvesting marine fisheries is changing in the 21 st century

Fishing smarter: How harvesting marine fisheries is changing in the 21 st century Dr. Paul Winger Fisheries and Marine Institute Memorial University www.mi.mun.ca/csar. D rivers for Innovation?. Economy Fuel prices Fish prices. Regulatory Resource Allocation (TAC)

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Fishing smarter: How harvesting marine fisheries is changing in the 21 st century

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  1. Fishing smarter: How harvesting marine fisheries is changing in the 21st century Dr. Paul Winger Fisheries and Marine Institute Memorial University www.mi.mun.ca/csar

  2. Drivers for Innovation? Economy Fuel prices Fish prices Regulatory Resource Allocation (TAC) Gear Technical Measures Closed areas Market forces Consumer preferences Low cost imports Eco-labeling and certification

  3. Soaring fuel prices in 2008 reduced the profitability of traditional fishing enterprises in Canada. • Increased expenses have threatened the economic stability of the entire sector. • Unstable fuel prices have provoked a need to implement energy saving technology and practices.

  4. Common Ecological Impacts: • Bycatch / Selectivity • High fuel consumption • Carbon footprint (CO2 Emissions) • Unaccounted fishing mortality • Loss of habitat • Ghost fishing • Seabed impacts • Entanglements

  5. Fishing Gear Development Cycle (Winger et al. 2006) Adapted from van Marlen (1988).

  6. Numerical Modelling Finite Element FE model (UK-Scot) Flow model (FR)

  7. Numerical Simulation DynamiT SimuTrawl Advantages: Evaluate feasibility of preliminary concepts 2) Examine the effect of alterations in design and rigging 3) Examine the effect of speed and rigging changes 4) Measure gear geometry and orientation Measure forces acting on the gear Measure downward forces on the seabed

  8. Engineering Scale Models Scaling, construction and performance testing of physical scale models Harold DeLouche

  9. Flume Tank Testing

  10. Flume Tank Testing

  11. Constructed in 1988 ($8.5 million CAD) • World’s largest flume tank • 8m wide x 4m deep x 22m long • Capacity : 1.7 million litres of water • Velocity: variable speed up to 1 m/s • Moving ground plane • Full array of electronic monitoring Flume Tank - Canada

  12. At-Sea Testing F/V Aqviq Ocean Choice International Cape Ashley Dwight Spence Straits Foam Marcel O’Brien Atlantic Champion Girard Chidley Newfoundland Spirit Jack Greenham Sco-Be-JWilliam Barnes

  13. At-Sea Testing CSAR (MI-MUN) W. Watson (UNH) Vienneau et al. (1993)

  14. At-Sea Testing (Hemmings 1973) Towed Underwater Vehicle (TUV) (Main and Sangster 1981) Bathyplane “Alant” (Martyshevskii and Korotkov 1971)

  15. At-Sea Testing

  16. At-Sea Testing (Underwood et al. unpublished)

  17. Woody Point, NL Always admit your mistakes..….

  18. Thank-you for your attention…. Dr. Paul Winger Director Centre for Sustainable Aquatic Resources Fisheries and Marine Institute Memorial University www.mi.mun.ca/csar

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