RV Cirolana CIR8/93
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR8/93 |
| Cruise period | 1993-08-09 — 1993-09-07 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | North Shields, United Kingdom |
| Purpose | Research |
| Objectives | 1. To carry out a groundfish survey of the North Sea using a standard GOV trawl in order to obtain information on: a) distribution and abundance of all fish species; b) length and age distribution of commercially important species; c) distribution of fish in relation to their environment; d) distribution of macrobenthos and anthropogenic debris.
2. To collect surface and bottom temperature and salinity data using reversing bottles. 3. To collect material for fish identification courses. 4. To provide fish samples for contaminant analysis for inclusion in the North Sea Task Force Quality Status Report. 5. To collect fish and seawater samples for caesium analysis from selected areas in the North Sea. 6. To collect samples of herring (Clupea harengus) for the study of Ichthyophonus disease. 7. To collect biological data from angler fish (Lophius spp.), pollack (Pollachius pollachius), tusk (Brosme brosme), catfish (Anarhichus lupus), hake (Merluccius merluccius), poor cod (Trisopterus minutus) and bib (Trisopterus luscus). 8. To collect fish food. |
| Chief scientist | C Timothy Macer (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Project | IBTS |
| Coordinating body | ICES |
| Ocean/sea areas | |
| General | North Sea |
| Specific | North Sea |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 14 Description: continuous |
| Water bottle stations | Quantity: number of stations = 67 Description: 68 top & bottom 44 surface S only |
| Chemical oceanography | |
| Radioactivity | Quantity: number of samples = 37 Description: samples for Caesium analysis |
| Biology and fisheries | |
| Demersal fish | Quantity: number of hauls = 71 |
