FRV Explorer 2/78
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 2/78 |
| Cruise period | 1978-01-31 — 1978-02-21 |
| Status | Completed |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1) To take part in the International Young Herring and Gadoid Pre-recruit Survey in the North Sea
2) To examine freshly caught fish for parasites |
| Chief scientist | Arthur S Jermyn (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Project | Int.Young Fish Survey |
| Cruise report |  (4.46 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Dogger Bank, Esbjerg, Danish coast, Fladen area, Hamnavoe |
| Track charts | (4.34 MB)  |
| Measurements | |
| Biology and fisheries | |
| Eggs and larvae | Quantity: number of hauls = 58 Description: sampling of pre-metmorphosis herring larvae using the Isaacs-Kidd midwater trawl |
| Pelagic fish | Description: 72 juvenile mackerel were dissected and examined for potential tag parasites. Microscopic examination of kidneys of 936 haddock and 374 plaice |
| Demersal fish | Quantity: number of hauls = 41 Description: population structures,monitoring,distribution studies using a bottom herring trawl with a 20 mm cod end |
