Most of the fishing trips sampled were in Regions 4 and 5, while Regions 2 and 3 are the least sampled. No trips were sampled in Region 1. It is important to understand why these areas were not sampled, whether it is due to low fishing activity, difficulties to access the ports or the fisheries in those areas are not covered by the sampling programme. Gears Sampled Table 2. Gear types sampled between 2002 and 2015 Gear definition Gear type Chinese Seine C/S Cadell Cad Gillnet Nylon GNN Gillnet Polyethylene Cabin Cruiser GNPcc Gillnet Polyethylene Inboard Engine GNPin Pin Seine P/S Traps Traps Trawl (Seabob/Finfish) Trawl 5. Assessing the spatial and technical representativeness of the sampling programme To assess and evaluate the representativeness of the fisheries sampling programme, it is necessary to have up to date and recurring characterisation of the entire fleet (number of vessels, fishing and landings patterns, fishing effort, gear used, accessibility of vessels and catches), both before and after the sampling year. The availability and completeness of these data will determine the design of appropriate sampling frames, sampling units and selection schemes for different fleet sectors and the need to separate surveys to estimate fleet composition and activity. There is need to have access to census data to understand the fleet behaviour, effort and catches. An important consideration when designing a sampling scheme is the coverage of all sampling frames. Ideally the entire population is completely covered by the frame. If only part of the population is covered, the frame has under-coverage that will lead to bias unless the variables of interest (e.g. discard rates, species and length catch composition) are the same in the parts of the population covered and not covered. The industrial vessels (those targeting seabob) in Guyana are well documented through
Most of the fishing trips sampled were in Regions 4 and 5, while Regions 2 and 3 are the least sampled. No trips were sampled in Region 1. It is important to understand why these areas were not sampled, whether it is due to low fishing activity, difficulties to access the ports or the fisheries in those areas are not covered by the sampling programme. Gears Sampled Table 2. Gear types sampled between 2002 and 2015 Gear definition Gear type Chinese Seine C/S Cadell Cad Gillnet Nylon GNN Gillnet Polyethylene Cabin Cruiser GNPcc Gillnet Polyethylene Inboard Engine GNPin Pin Seine P/S Traps Traps Trawl (Seabob/Finfish) Trawl 5. Assessing the spatial and technical representativeness of the sampling programme To assess and evaluate the representativeness of the fisheries sampling programme, it is necessary to have up to date and recurring characterisation of the entire fleet (number of vessels, fishing and landings patterns, fishing effort, gear used, accessibility of vessels and catches), both before and after the sampling year. The availability and completeness of these data will determine the design of appropriate sampling frames, sampling units and selection schemes for different fleet sectors and the need to separate surveys to estimate fleet composition and activity. There is need to have access to census data to understand the fleet behaviour, effort and catches. An important consideration when designing a sampling scheme is the coverage of all sampling frames. Ideally the entire population is completely covered by the frame. If only part of the population is covered, the frame has under-coverage that will lead to bias unless the variables of interest (e.g. discard rates, species and length catch composition) are the same in the parts of the population covered and not covered. The industrial vessels (those targeting seabob) in Guyana are well documented through
4.1%20CME%20MSC%20Guyana_Stock%20assesment%20%20Report%20FINAL_ARS.docx