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FRV Clupea 7/68
Cruise summary report
Cruise Info. | |
Ship name (ship code) | FRV Clupea (74CU) |
Cruise identifier | 7/68 |
Cruise period | 1968-07-01 — 1968-07-20 |
Status | Completed |
Port of departure | Buckie, United Kingdom |
Port of return | Buckie, United Kingdom |
Purpose | Fisheries |
Objectives | 1. To carry out an echo-sounding survey off south-east Shetlands in order to estimate the abundance and distribution of herring shoals.
2. To obtain plankton samples from the same area for the Scottish Marine Biological Association at Edinburgh. |
Chief scientist | John A Urquhart (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
Cruise report | (0.05 MB) |
Ocean/sea areas | |
General | North Sea |
Specific | Shetlands |
Measurements | |
Biology and fisheries | |
Seston | Quantity: activity duration in days = 14 Description: During the echo search, plankton samples were taken with a plankton indicator every hour from 6pm (B.S.T) to 6am (B.S.T) |
Pelagic fish | Quantity: activity duration in days = 14 Description: An echo search plan was carried out in the second and thrid week |
Acoustic reflection on marine organisms. | Quantity: activity duration in days = 14 Description: An echo search plan was carried out in the second and thrid week |