FRV Explorer 3/70
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 3/70 |
| Cruise period | 1970-04-09 — 1970-05-02 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | Trawling 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 scientist | Roger S Bailey (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.18 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | Dutch 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 stations | Quantity: 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 | |
| Phytoplankton | Quantity: 28 Description: interna. standard net |
| Zooplankton | Quantity: 42 Description: W.P.3.net |
| Eggs and larvae | Quantity: 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 fish | Quantity: 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 fish | Quantity: 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 |
