Protocols for trawl sampling, recording of biological data, and hydrography for the 2019 International synoptic krill survey in Area 48

Experience gained through participation in international programmes like BIOMASS and the CCAMLR 2000 Survey has demonstrated that standardization of equipment and methods is one of the most crucial steps for any successful work during the field sampling period and later analytical work. The following net sampling and laboratory protocols are based on the protocols developed for the CCAMLR 2000 Survey. The aim is to facilitate a joint understanding of the field and laboratory work in order for participants that carry out the upcoming International Krill Synoptic Survey 2019 to collect comparable and high-quality data. This will hopefully enable the establishment of a uniform and valuable database of comparable quality with data obtained through the CCAMLR 2000 Survey and other more recent surveys that have been conducted within the region of CCAMLR Area 48.