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

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&W : Northern Ireland March Groundfish Survey- Irish Sea East & West - Nos. per 3 nm: Comparative sc 1 -1.5 -2.5 Log index at age 2 .5 0 -.5 -1 Log index at age 3 -.5 -1 -1.5 -2 -2.5 Log index at age 4 -2 -2.5 -3 -3.5 -4 -4.5 -5 Log index at age 5 -3 -3.5 -4 -4.5 -5 -5.5 -6 -1.5 .4 .6 .8 1 1.2 1.4 1.6 Log index at age 1 .4 .6 .8 1 1.2 1.4 1.6 Log index at age 1 .4 .6 .8 1 1.2 1.4 1.6 Log index at age 1 .4 .6 .8 1 1.2 1.4 1.6 Log index at age 1 -1.5 -2.5 Log index at age 3 -.5 -1 -1.5 -2 -2.5 Log index at age 4 -2 -2.5 -3 -3.5 -4 -4.5 -5 Log index at age 5 -3 -3.5 -4 -4.5 -5 -5.5 -6 -1.5 -1 -.5 0 .5 1 Log index at age 2 -1.5 -1 -.5 0 .5 1 Log index at age 2 -1.5 -1 -.5 0 .5 1 Log index at age 2 -1.5 -2.5 Log index at age 4 -2 -2.5 -3 -3.5 -4 -4.5 Log index at age 5 -3 -3.5 -4 -4.5 -5 -5.5 -5 -6 -2.5 -2 -1.5 -1 -.5 Log index at age 3 -2.5 -2 -1.5 -1 -.5 Log index at age 3 -2.5 Log index at age 5 -3 -3.5 -4 -4.5 -5 -5.5 -6 -5 -4.5 -4 -3.5 -3 -2.5 -2 -1.5 Log index at age 4 Fig. 9. Within-survey correlations for Irish Sea whiting in the: NI-GFS (March) Q1 groundfish survey. Regression lines and confidence intervals for the regression are shown. Fig. 10. North Sea haddock: Log mean-standardised abundance indices by cohort for each of the three surveys used in the assessment. 64
Fig. 11. North Sea haddock: Correlations between abundance indices at age in the ScoGFS and IBTSQ1 surveys Fig. 12. North Sea haddock : Catch curves by cohort for the three surveys used in the assessment. 65
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REPORT OF THE WORKSHOP ON TRAWL SUR
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Maritime Districts of Ancona and Sa
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Indicators 11. Nine presentations w
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Papaconstantinou C.) Abstract: Abun
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• The use of robust parameters of
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• 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 and 60: Fig. 2. Station positions of the IB
Page 61 and 62: Fig. 5. Scanmar measurements of hea
Page 63: Fig. 7. Density distribution of 1-y
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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