FRV Explorer 11/78
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 11/78 |
| Cruise period | 1978-10-18 — 1978-11-07 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1) To undertake a North Sea pre-recruit demersal fish survey
2) A large number of cod, haddock, whiting, saithe and plaice were deep frozen and returned to the Laboratory in order to investigate their round weight/gutted weight relationship 3) Samples of whiting, mackerel, and squid from various stations were deep-frozen for subsequent examination for larval nemtodes ''Explorer'' docked in Lerwick on the 27/10/1978 sailing again on the 29/10/1978 SW gales forced the ship to anchor in Inganess Bay on the 01/11/1978 |
| Chief scientist | Andrew W Newton (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (1.72 MB) |
| Ocean/sea areas | |
| General | North Sea Norwegian Sea North East Atlantic Ocean (limit 40W) |
| Specific | Moray Firth, Off Aberdeenshire coast, N of Shetlands, Norwegian coast, Ling Bank area, Viking, Forties, Buchan, Orkneys |
| Track charts | (1.60 MB)  |
| Measurements | |
| Contamination | |
| Trace metals | Quantity: 3 |
| Biology and fisheries | |
| Demersal fish | Quantity: number of stations = 55 Description: pathology,population,monitoring. Haddock and whiting caught. 2657 samples of kidney were taken from measured haddock from all stations, and were examined microscopically for Ichthyophonus infection. 35 Whiting, 12 cod, 79 were similarly sampled with additional samples of these species and pout preserved or frozen for future laboratory examination. Gel diffusion antibody tests were carried out on the blood serum of 75 haddock using fungal antigen from both plaice and haddock. Whiting were gutted and the viscera and flesh of individual fish were preserved separately by deep freezing for later analysis for post-mortem migration of larvae from the viscera to the flesh. |
