FRV Clupea 0999C
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Clupea (74CU) |
| Cruise identifier | 0999C |
| Cruise period | 1999-06-08 — 1999-06-13 |
| Status | Completed |
| Port of departure | Fraserburgh, United Kingdom |
| Port of return | Kyle of Lochalsh, United Kingdom |
| Purpose | Trials |
| Objectives | One of a series of data collection cruises to obtain data from a new multibeam sonar on fish school shape dynamics. Part of an EU funded project called AVITIS (cope:fair CT96-1717).
Main Objectives: 1. To calibrate vertical echosounders. 2. To collect data on fish schools with the multibeam sonarand vertical echosounders similtaneously. 3. To collect sonar and echosounder data across a sea surface temperature anamoly (front). Calibration successful. Data on school shape obtained south of Sound of Islay. Front at mouth of Clyde surveyed with 1 transect. |
| Chief scientist | Paul G Fernandes (Fisheries Research Services Aberdeen Marine Laboratory) |
| Project | AVITIS |
| Coordinating body | Institut de Recherches pour le Developpement, France |
| Cruise report |  (1.11 MB) |
| Ocean/sea areas | |
| General | Inner Seas off the West Coast of Scotland |
| Specific | Firth of Clyde, Sound of Islay, North Channel |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 3 Description: Continuous SST and salinity measurements with Seabird thermosalinograph |
| Water bottle stations | Quantity: number of samples = 24 Description: Water samples from fish house seawater pump, for comparison with CTD/ thermosalinograph data. |
| CTD stations | Quantity: number of profiles = 9 Description: Single vertical cast with seabird 19 CTD, for density structure of front |
| Geology and geophysics | |
| Single-beam echosounding | Quantity: data volume in gigabytes = .215 Description: Single beam echosounder data @ 38and 120 kHz from a Simrad EK500 echosounder, for comparison with multibeam sonar data |
| Multi-beam echosounding | Quantity: data volume in gigabytes = 11 Description: Mulitbeam sonar data @ 4.55 kHz from a Reson Seabat 6012 sonar - for input to 3-D reconstruction of fish school shape/ structure |
