CEFAS26-86 ITT for Thames Survey Vessel Charter

for the stock. To provide suitable spatial coverage, two surveys will be undertaken: one in the northern Outer Thames and one in the southern Outer Thames. Together, these surveys will collect abundance-at-age data for juvenile sole and information on the wider fish assemblage, including small deme

rsal fish such as plaice, thornback ray and whiting, as well as shellfish and selected invertebrates. The project will conduct two seasonal surveys, each lasting up to seven days, using a standard 2 m or 3 m beam trawl supplied by Cefas at