FRV Explorer Additional Cruise

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifierAdditional Cruise
Cruise period1983-04-14 — 1983-04-19
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To undertake an underwater closed circuit television survey of the Guillam Bank dump site and surrounding area.
2. To recover samples of dumped electrodes using an Agassiz trawl.
3. To assess whether dumped electrode material will interfere with Nephrops trawling operations. Abandoned due to the Jackson prawn trawl being unsuitable for use on 'Explorer'.
4. To log the position of the dumping vessel "Kindeaoe" during actual dumping operations.

The main engine developed a fault and it was necessary to anchor off Cruden Bay to undertake essential repairs, ''Explorer'' set sail again on the 15/04/1983. Objective 3 was abandoned because the Jackson prawn trawl was unsuitable for use on ''Explorer''
Chief scientistDerek Saward (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer Additional Cruise cruise report explorer_april83.pdf (0.16 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificMoray Firth, Guillam Bank site
Bottom deposits
Biology and fisheries 
Demersal fishQuantity: number of hauls = 29
Description: Agassiz trawls. A further 2 hauls were made with the Jackson prawn trawl, mixed benthic fauna and sprats were caught
Geology and geophysics 
Bottom photographyQuantity: number of track lines = 22
Description: Underwater closed circuit TV - coverage of the dump site area