FRV Scotia 1007S_1
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Scotia (748S) |
| Cruise identifier | 1007S_1 |
| Cruise period | 2007-06-29 — 2007-07-09 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Lerwick, United Kingdom |
| Purpose | Fisheries |
| Objectives | Objectives
1. To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58.15 - 61.45 N and 4W to 2E, excluding Faroese waters. 2. To obtain biological samples for echosounder trace identification using a pelagic trawl. 3. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity, ichthyophonus infection and fat content. 4. To obtain hydrographic data for comparison with the horizontal and vertical distribution of herring. 5. To obtain plankton samples map the distribution and abundance of zooplankton. 6. To obtain in-situ target strength data on herring using the autonomous echosounder mounted in a drop frame. 7. To obtain live herring and live juvenile haddock for transport back to the laboratory. Narrative All gear was loaded in Aberdeen on 27 & 28 June. Scientific staff joined the vessel at 0800 UTC on 29 June and it departed at 1000 on the same day. A small meeting was held with all scientists to explain the objectives of the survey and to describe general operating procedures. The survey commenced just outside Aberdeen at 1030 on 29 June. Transects progressed northwards along lines of latitude, at spacings of 30, 15 or 7.5 nautical miles (n.mi.). Transect spacing was based on the results of previous surveys and transects were placed relative to ICES rectangles. Transects extended as far east as 1 45E, and as far as safely possible to the west, on approaching the coast. Calibration of the transducers took place in Scapa Flow between 1600 on 1 July and 0300 on the 2 July. The survey resumed immediately afterwards. A half landing took place on 9 July in Lerwick in accordance with rest provision for the Working Time Directive and for the exchange of personnel, (P Fernandes and Jane Mills left and Dave Reid and Owen Goudie joined). |
| Chief scientist | Paul G Fernandes (Fisheries Research Services Aberdeen Marine Laboratory) |
| Project | RV0708 |
| Coordinating body | CEFAS |
| Cruise programme |  (0.03 MB) |
| Cruise report | (0.02 MB) |
| Ocean/sea areas | |
| General | North Sea North East Atlantic Ocean (limit 40W) |
| Specific | North Sea, north of Scotland and Shetland |
| Measurements | |
| Physical oceanography | |
| CTD stations | Quantity: number of surveys = 1 Description: Hydrographic survey using CTD attached to Gulf VII sampler |
| Biology and fisheries | |
| Phytoplankton | Quantity: number of surveys = 1 Description: Plankton survey using Gulf VII sampler |
| Zooplankton | Quantity: number of surveys = 1 Description: Plankton survey using Gulf VII sampler |
| Pelagic fish | Quantity: number of surveys = 1 Description: trawl survey for pelagic fish, including herring |
| Acoustic reflection on marine organisms. | Quantity: number of surveys = 1 Description: Acoustic survey of herring population |
| Other biological/fisheries measurement | Description: herring measured. Number of samples not noted. |
| Other biological/fisheries measurement | Description: herring sampled for weight, sex, maturity and otoliths. Number of samples not noted |
