RV Ernest Holt 5/67
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Ernest Holt (74EH) |
| Cruise identifier | 5/67 |
| Cruise period | 1967-05-25 — 1967-06-13 |
| Status | Completed |
| Port of departure | Grimsby, United Kingdom |
| Port of return | Grimsby, United Kingdom |
| Purpose | Research |
| Objectives | 1. To carry out a tin tow net survey for eggs and larvae of fish species potentially important for industrial fishing development. The area to be covered including the southern part of the North Sea, English Channel, British Channel, south of Ireland, St. George's Channel, Cardigan Bay and western Irish Sea.
2. A concurrent echo survey using both low (30 and 48 kHz) and high frequency (100 kHz) equipment, the latter with fish counting gear attached. 3. Hydrographic observations involving surface temperatures, salinities and thermocline observations. 4. Midwater and bottom fishing if any worthwhile fish concentrations are located, and collecticn of fish blood samples. |
| Chief scientist | P O Johnson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.29 MB) |
| Ocean/sea areas | |
| General | English Channel |
| Specific | Bristol Channel |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: T only |
| Bathythermograph | Quantity: number of profiles = 102 Description: mechanical |
