RV Huxley contribution to the International Council for the Exploration of the Sea (Scotland, the northern section, was treated differently). Fishery investigations began in September 1902 under the directorship of Walter Garstang. The work consisted of systematic exploration of the North Sea trawling grounds at different seasons of the year, together with studies of growth and migration of plaice "Pleuronectes platessa" based on tagging experiments, examination of the food of fish and the nature of the seabed. Detailed catch records from North Sea survey stations between 1902 and 1903 were summarised in a report published by Garstang in 1905. Research continued until
Anyperodon than the upper jaw. There are no palatine teeth, a fact which distinguishes this species from other groupers. The basic colour is pale reddish-brown liberally dotted with orange spots which are closer together on the head. There are five pale silvery blue longitudinal lines running down either side, the lower 3 reaching the tail but the upper two breaking into irregular streaks. The dorsal fin has 11 spines and 14 to 16 soft rays. The anal fin has 3 spines and 8 to 9 soft rays. Juvenile fish have vivid blue and red longitudinal stripes. The slender grouper has a