1. Ahlstrom, E.H., 1948. A record of Pilchard Eggs and Larvae Collected During Surveys made in 1939 to 1941. US Fish and Wildlife Service, Special Scientific, Report 54, p. 76.
2. Comparison of catch rates among small and large Bongo samplers for Calanus finmarchicus copepodite stages;Anderson;Canadian Journal of Fisheries and Aquatic Sciences,1991
3. Anonymous, 1991. Report of the Study Group on Gulf III Sampler Efficiency Calibrations. ICES CM 1991/L:58, 10pp.
4. Some experiments on the variability of horizontal plankton hauls and on the horizontal distribution of plankton in a limited area;Anraku;Bulletin of the Faculty of Fisheries Hokkaido University,1956
5. On the variability of replicate plankton samples and some application of ‘contagious’ series to the statistical distribution of catches over restricted periods;Barnes;Journal of the Marine Biological Association of the United Kingdom,1951