Cruise inventory

RV Ernest Holt 2/70

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Ernest Holt (74EH)
Cruise identifier2/70
Cruise period1970-03-06 — 1970-03-20
Port of departureGrimsby, United Kingdom
Port of returnGrimsby, United Kingdom
Objectives1. To fulfill the English commitment to the 1970 ICES International Young Herring survey. This will entail:
a. sampling with the Dutch Herring Trawl within a number of statistical sub- rectangles (hauls of one hour duration are to be made in each);
b. running the echo sounder continuously over the whole survey area;
c. making surface and bottom temeraturre and salinity observations at each station.
2. To make subsidiary observations on sprat and any gadoid fish taken in the catches.
3. To act as a standby vessel to assist the Norwegian purse-seiner GERDA MARIE when required. (This vessel is currently tagging young herring as part of the ICES Bloden tagging experiment and may require help in searching for and identifying herring shoals suitable for purse-seine capture).
Chief scientistP O Johnson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Ernest Holt 2/70 cruise report ernest_holt02_70.pdf — access key 'C' (0.22 MB) 
Ocean/sea areas 
GeneralNorth Sea
Physical oceanography 
Water bottle stationsQuantity: number of stations = 30
Description: top & bottom only
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 30
Description: dutch herring trawl cont.echo survey