|
(080) New impact categories for environmental assessment of fishery: A case study of Swedish cod fishery. Ziegler, Friederike1,2, Nilsson, Per2, Mattsson, Berit1, Ohlsson, Thomas1, 1 2 ABSTRACT- Just like other types of food, seafood production causes certain amounts of environmental impact throughout its life cycle. Interest in quantifying these different types of impact has increased with increasing pressure on both the harvested stocks and the marine ecosystem in general. The present study is part of a Ph. D. project focused on developing methods to apply environmental Life Cycle Assessment (LCA) to seafood products. The product followed during this part of the project is cod fillet for which preliminary results will be presented. In the fishery step of its life cycle, several new impact categories are included in the LCA such as discarded by-catches and seafloor impact by fishing gear. Discard data was provided by EU projects operating in the Baltic and in the Skagerak and North Sea. The seafloor impact was estimated from literature and by data from a trawl manufacturer. Fuel consumption in Swedish fisheries was previously undocumented. For this study it has been estimated through a questionnaire including questions about the fuel consumption in different fisheries targeting cod, which was sent out to fishermen. Emissions from the fishing vessels have been estimated from laboratory and field tests performed by Volvo Penta and Scania, the main manufacturers of marine diesel engines in Sweden. Conclusions that can be drawn from this study include that there are considerable differences between different fishing methods and therefore promising options for improvement of the environmental performance of fishery in the future. Key words: fishing methods, environmental impact, LCA, seafood production |
