Cruise inventory

RV Corystes COR6B/91

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR6B/91
Cruise period1991-06-08 — 1991-06-28
Port of departureFalmouth, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To test the Danish FOTO midwater trawl and use it to investigate the diurnal vertical distribution of spawning mackerel.
2. To investigate the diurnal and vertical distribution of egg production using the LHPR.
3. To estimate the duration of the alpha stage of atresia in ovaries from captive mackerel.
4. To collect samples of 1, 2, and 3 year old mackerel from areas VIIE and VIIJ to study changes in the ovary related to the onset of spawning.
5. To collect ovaries from spawning mackerel in order to estimate annual changes in the batch fecundity.
Chief scientistMichael Greer-Walker (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corystes COR6B/91 cruise report co6b_91.pdf — access key 'C' (0.15 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North East Atlantic Ocean (limit 40W)
Track chartsRV Corystes COR6B/91 cruise track — trk3703.html
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 69
ZooplanktonQuantity: number of stations = 69
Pelagic fishQuantity: number of hauls = 24
Description: mid-water trawl & mackerel by rod+line