REPORT OF THE WORKSHOP ON TRAWL SURVEY ... - FAO.org

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Fig. 4. A decision tree for designing a survey of a marine resource (from WKSAD 2005) 60
Fig. 5. Scanmar measurements of headline height and door spread as a function of depth of tows carried out on the Cefas RV Cirolana and its replacement vessel the more powerful RV Endeavour. The mean, upper and lower curves represent IBTS tolerance levels for the standard GOV trawl. 61
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REPORT OF THE WORKSHOP ON TRAWL SUR
Page 3 and 4:
Maritime Districts of Ancona and Sa
Page 5 and 6:
Indicators 11. Nine presentations w
Page 7 and 8:
Papaconstantinou C.) Abstract: Abun
Page 9 and 10: • The use of robust parameters of
Page 11 and 12: • Identify the data requirements
Page 13 and 14: Terms of reference • Inventory of
Page 15 and 16: Roberto CARLUCCI Department of Zool
Page 17 and 18: Giuseppe LEMBO COISPA Tecnologia &
Page 19 and 20: Abdellah SROUR GFCM Deputy Executiv
Page 21 and 22: Position of hauls Spring 2005 Fall
Page 23 and 24: Overview of the series Period Vesse
Page 25 and 26: l’isobathe de 300 m se situe à 2
Page 27 and 28: Annexe I : Schéma de Chalut à cre
Page 29 and 30: Gear details Area Sampling design M
Page 31 and 32: COUNTRY: Serbia and Montenegro GSA:
Page 33 and 34: Data management Quality control We
Page 35 and 36: Position of hauls 46° 41° 36° 31
Page 37 and 38: Fig. 2. Diagram of the rigging. 37
Page 39 and 40: Fig. 4. Drawing of a door Morgère
Page 41 and 42: Overview of the series Period Vesse
Page 43 and 44: estimates against abundance indices
Page 45 and 46: placing a few tows at random within
Page 47 and 48: variation of catch rates did not va
Page 49 and 50: could be treated as separate. Some
Page 51 and 52: egg surveys are carried out, led to
Page 53 and 54: (i.e. ratios Ln (N a+1,y+1 /N a,y )
Page 55 and 56: are each divided into two separate
Page 57 and 58: Pomarede, M., Hillary, R., Kell,L.,
Page 59: Fig. 2. Station positions of the IB
Page 63 and 64: Fig. 7. Density distribution of 1-y
Page 65 and 66: Fig. 11. North Sea haddock: Correla
Page 67 and 68: Mean total mortality Spawning stock
Page 69 and 70: Haddock SSB trends from raw survey
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REPORT OF THE WORKSHOP ON TRAWL SURVEY ... - FAO.org

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