Cruise inventory

RV Corystes COR6B/93

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR6B/93
Cruise period1993-06-14 — 1993-07-04
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To investigate the vertical distribution of spawning mackerel by day and by night using the Danish FOTO midwater trawl and rod and line.
2. To investigate the diurnal and vertical distribution of egg production using the Longhurst Hardy plankton sampler.
3. To estimate the rates of oocyte atresia in ovaries from captive mackerel.
4. To collect ovaries from spawning mackerel in order to estimate annual changes in the batch fecundity for Dr I Priede, Zoology Department, University of Aberdeen.
Chief scientistMichael Greer-Walker (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corystes COR6B/93 cruise report co6b_93.pdf — access key 'C' (0.19 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificWest of Ireland and SW Approaches
Track chartsRV Corystes COR6B/93 cruise track — trk3852.html
Physical oceanography 
Water bottle stationsQuantity: number of stations = 48
Description: surface salinity only
Biology and fisheries 
Eggs and larvaeQuantity: number of stations = 68
Description: mackerel eggs
Pelagic fishQuantity: number of hauls = 58
Description: 40 trawls made using the Danish FOTO midwater trawl and 18 with rod and line.
Other biological/fisheries measurementDescription: Histological studies