Cruise inventory

FRV Mara 4/72

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Mara (74MR)
Cruise identifier4/72
Cruise period1972-03-27 — 1972-04-28
Port of departureBuckie, United Kingdom
Port of returnBuckie, United Kingdom
ObjectivesTo conduct a comparative fishing experiment for NEPHROPS using a beam trawl fitted with electric ticklers.

Mara was based in Buckie. Nine days were lost wholly or partially, during the cruise due to bad weather. One day was given over to the C.O.I film unit, and one day was used for divers to make observations on the beam trawl, in Spey Bay.
Chief scientistPeter A M Stewart (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Mara 4/72 cruise report mara4_72.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificSpey Bay, Moray Firth
Biology and fisheries 
CrustaceansDescription: Comparative fishing experiments for Nephrops. Electric ticklers were used to try to force the Nephrops out of their burrows. No. of trials not listed.
CrustaceansDescription: An 18 feet beam trawl, fitted with skids was used. Electrodes were attached and were behind the beam. Observations were made on a sandy bottom at a depth of 60 feet. No. of hauls not specified.
CrustaceansDescription: The area 2 40W to3 48W in Moray Firth was trawled. No. of hauls not specified.
CrustaceansDescription: Catches on all hauls were very poor and so results were inconclusive. No. of hauls not specified.