Cruise inventory

FRV Mara 10/63

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Mara (74MR)
Cruise identifier10/63
Cruise period1963-07-08 — 1963-07-25
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeTrials
Objectives1) To make preliminary trials with the modified purse seine
2) To tag herring caught with this equiptment
3) Echo searches were made to find suitable traces to shoot the net on

''Mara'' spent the first week in port, the ship put to sea on the 15/07/1963. On the 18/07/1963 the weather put a stop to further trials for that week
Chief scientistAlan Saville (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory), Ian G Baxter (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Mara 10/63 cruise report mara10_63.pdf — access key 'C' (0.07 MB) 
Ocean/sea areas 
GeneralNorth Sea
Specificoff Portsoy, Troup Head
Measurements 
Biology and fisheries 
Demersal fishQuantity: number of surveys = 2
Description: An echo survey was carried out to locate herring shoals, to try the net, 2 attempts were made but abortive.
Gear researchDescription: The Troup Head area was fished providing a catch, but it was felt the shooting speed was still too slow. No. of hauls not noted.
Gear researchQuantity: number of surveys = 2
Description: An echo survey was carried out to locate herring shoals, to try the net, 2 attempts were made but abortive.
Gear researchQuantity: activity duration in days = 3
Description: Trials of the modified purse seine net. It took svereal days of shooting and hauling the net to gain the optimum settings and it was noted that the nets only perfomed well in ideal weather conditions.