1. To carry out an acoustic survey for herring in the Southern Bight and eastern English Channel.
2. To obtain samples of herring by pelagic trawling for ageing and biological studies.
3. To survey the Thames Estuary area for sprat shoals if this can be conventionally keyed in with the main survey.
P O Johnson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Southern Bight/ E. English Channel
Biology and fisheries
Quantity: number of hauls = 13 Description: trawls made with 800 Engel pelagic trawl.
Acoustic reflection on marine organisms.
Quantity: track kilometres = 2502.052 Description: acoustically integrated using the small Scottish towed body, with SIMRAD EK 400.