Cruise inventory

FRV Explorer 3/70

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier3/70
Cruise period1970-04-09 — 1970-05-02
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
ObjectivesTrawling and Plankton survey

The ship docked at Stornoway from the 22/04/1970 till the 24/04/1970 to replace scientific staff. Gonads from a few fish of doubtful maturity were preserved for histological examination. Samples of ovaries were taken from blue whiting, Norway pout, Argentina silus and A. syhyraena, and stomach contents from blue whiting. Samples of A. silus, Scorpaena, Chimaera and blue whiting were also deep frozen for analysis by the Torry Reasearch Station.
Chief scientistRoger S Bailey (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 3/70 cruise report explorer3_70.pdf — access key 'C' (0.18 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificDutch Bank, Papa Bank, west of the Flannen Isle, Rockall Bank, Minch, Stanton Banks, Outer Hebrides, St Kilda, Butt of Lewis
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 9
Description: Stations were worked across Rockall Bank using the P.N and a single cast of 4 reversing bottles.
Biology and fisheries 
PhytoplanktonQuantity: 28
Description: interna. standard net
ZooplanktonQuantity: 42
Description: W.P.3.net
Eggs and larvaeQuantity: number of samples = 149
Description: Gulf III sampler, WP3 net and a standard net were used to take samples. During the latter part of the survey, the flowmeter strops broke so that no flow readings could be taken, and the standard net became irreparably torn.
Pelagic fishQuantity: number of hauls = 37
Description: The SARO II Industrial fish trawl was used. 2 on Dutch Bank, 2 on Papa Bank, 4 on the Continental Shelf west of the outer Hebrides, 2 on Stanton Banks, 1 in North Minch, and 26 on Rockall Bank.
Demersal fishQuantity: number of hauls = 37
Description: The SARO II Industrial fish trawl was used. 2 on Dutch Bank, 2 on Papa Bank, 4 on the Continental Shelf west of the outer Hebrides, 2 on Stanton Banks, 1 in North Minch, and 26 on Rockall Bank.
Meteorology 
Occasional standard measurements