FRV Scarba 6/71
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Scarba (74RG) |
| Cruise identifier | 6/71 |
| Cruise period | 1971-08-06 — 1971-08-30 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1. To complete the midwater trawling survey for 0-group gadoids in the north-western North Sea begun on the previous cruise, and to repeat sampling at a number of widely spaced points within the survey area.
2. To investigate diurnal variation in the availability of small gadoids in midwater and on the sea bed. 3. To investigate the food and diurnal variation in the feeding rates of 0-group gadoids, clupeids and sandeels. 4. To obtain live fish for aquarium experiments. 5. To investigate the planktonic environment of the pelagic phase of gadoids. 6. To make some hydrographic observations at selected stations. |
| Chief scientist | Roger S Bailey (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.20 MB) |
| Ocean/sea areas | |
| General | Norwegian Sea North East Atlantic Ocean (limit 40W) |
| Measurements | |
| Physical oceanography | |
| Bathythermograph | Quantity: number of profiles = 33 Description: mechanical |
| Water bottle stations | Quantity: number of stations = 33 Description: top & bottom only |
| Contamination | |
| Other contaminant measurements | Description: chemical pollution |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 33 |
| Phytoplankton | Quantity: 3 |
| Zooplankton | Quantity: 77 Description: microplancton |
| Zooplankton | Quantity: 34 |
| Birds | |
| Mammals and reptiles | Description: mammals |
| Pelagic fish | Quantity: number of hauls = 77 |
| Other biological/fisheries measurement | Description: deep scattering layers 20 days |
