A series of five surveys were carried out between May and September of 1987 in
the North Sea off the north-east coast of England to undertake stock
assessment by the egg production method. The species targeted were Nephrops
norvegicus (Norway lobster) and *Homarus gammarus *(European lobster)
with plankton samples being collected at each site on a planned survey grid.
The data described here consists of the numbers of eggs and larvae, along with
associated positional and ancillary data and volumes filtered.
