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

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Appendix 1 Agenda 1. Opening and arrangement of the meeting 2. Session 1: Status of knowledge on trawl survey undertaken in the GFCM area • Inventory of trawl surveys performed in the Mediterranean Sea - Bottom trawl surveys - Other bottom surveys • Conclusions/recommendations for the session 1 3. Session 2: Methodologies for trawl survey data used to assess fishery resources and the ecosystem, including the use of the biological and ecological indicators • Survey methodology • Indicators • The use of trawl survey data in the ICES region for assessment. • Linkage between trawl surveys and indirect assessment methods • Conclusions/recommendations from the review of methodology 4. Session 3: Application test • The utilization of trawl surveys data for stock assessment purposes using two variants of surplus production models • Conclusions of the application test 5. Session 4: General conclusions 6. Adoption of the report 12
Terms of reference • Inventory of methods used to carry out bottom surveys in the Mediterranean • Pooling of concepts, methods and tools used to analyse trawl surveys data • Elaboration of population and community indicators from standardized bottom surveys • The use of trawl surveys data for the assessment and management of fishery resources and ecosystems 13
Page 1 and 2: 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: • Identify the data requirements
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 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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