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

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COUNTRY: Montenegro GSA: GSA 18 Survey title AdriaMed Montenegro Trawls Survey M<strong>ON</strong>T Country Montenegro Institute in charge Institute of Marine Biology-Kotor Area Period Feb.24-25. Winter 2007 GFCM GSA 18 Main objective Monitoring of demersal resources. quantitative and qualitative data of relative and absolute target species abundance as well as with additional, biological indicators that might be utilized by fishery biologists, national administrations (managers) and finally fishermen for a better and successful national and regional policy to determine target species relative and absolute abundance in time and space and to each other their vulnerability to the sampling gear; where it was possible to establish approximations of the magnitude of important, or potentially important commercial species together with estimates of the physical yields that these resources might provide mankind; target species population dynamics parameters, such as: mortality rates and cod-end selection characteristics were analysed as well as biological properties, such as: gonads maturity stages, thus species spawning time and potential nursery grounds; Complementary objective 28
Gear details Area Sampling design Monenegrin territorial waters (2 173 km 2 ) and epicontinental waters (3 885 km 2 ),. Total surveyed area is 5 000 km 2 Sampling scheme on different strata with indications (within each area and depth stratum) of trawable surface area (km 2 ) with number of fixed stations in brackets. 10-50m 50-100m 100-200m 200-500m 500-800m Total 280 km 2 (1) 1100 km 2 (2) 1700 km 2 (4) 1150km 2 (2) 770 km 2 (1) 5000 km 2 (10) Species recorded Data management Quality control Data processing is still in progress We used AdriaMed ATRiS software 29
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 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: Annexe I : Schéma de Chalut à cre
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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