RV Ernest Holt 1/68
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Ernest Holt (74EH) |
| Cruise identifier | 1/68 |
| Cruise period | 1968-01-12 — 1968-02-01 |
| Status | Completed |
| Port of departure | Grimsby, United Kingdom |
| Port of return | Grimsby, United Kingdom |
| Purpose | Fisheries |
| Objectives | A Horse Mackerel
1. Echo survey in western English Channel; trawling. 2. Routine sampling of length, otoliths, maturity, etc, 3. Collect gonads for histological studies. 4. Tagging. B Sprat and Herring 5. Echo survey of Bristol Channel and Celtic Sea with trace identification if possible. 6. Tin Tow Net (TTN) survey in same area as (5) for sprat eggs and herring larvae; surface salinity and temperature. 7. Bottom temperature and salinity off Dunmore herring spawning ground. C 8. Drag tests in connection with an experimental plankton collector (UEA). |
| Chief scientist | C Timothy Macer (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.20 MB) |
| Ocean/sea areas | |
| General | North Atlantic Ocean Bristol Channel |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: T only |
| Water bottle stations | Quantity: number of stations = 48 Description: T surface 4 S surface |
| Meteorology | |
| Routine standard measurements |
