Ina-K 1/91

Cruise summary report

Cruise Info. 
Ship name (ship code)Ina-K (74IK)
Cruise identifier1/91
Cruise period1991-11-11 — 1991-11-20
Port of departureLeigh-on-Sea, United Kingdom
Port of returnLeigh-on-Sea, United Kingdom
Objectives1) To assess the distribution and abundance of herring in the Thames Esturary using a Larsen spat trawl
2) To obtain an independent estimate of the age structure of the Thames spring spawning herring stock
Chief scientistT J Hulme (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportIna-K 1/91 cruise report inak1_91.pdf (2.71 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificThames Estuary, Leight-on-Sea, Middle Deep
Track chartsIna-K 1/91 cruise track — inak1_91track.pdf (0.97 MB) 
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 32
Description: made with the 36' x 36' Larsen sprat trawl. Herring and sprats caught. 467 fish were biologically examined and otolithed for stock analysis, a further 200 fish examined for maturity/length purposes