FRV Scotia 0823S
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Scotia (748S) |
| Cruise identifier | 0823S |
| Cruise period | 2023-06-29 — 2023-07-20 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | Objectives
- 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 30' N - 62 N, and from the shelf edge to 02 E, excluding Faroese waters. - To obtain biological samples by directed trawling with pelagic nets to confirm echosounder trace identification. - To obtain samples of herring and sprat for biological analysis, including age, length, weight, organ weights, presence of Ichthyophonous, sex and maturity throughout the survey area. - Collect samples and data for stock identity determination of herring. Otoliths will be collected for morphometric stock ID analysis. For herring caught west of 04 W a maximum of 100 fish per haul will have tissue samples collected. For herring caught east of the 04 W herring tissue samples will be taken, 30 individuals per haul. These samples will be analysed for stock identification in both areas. - To obtain physical oceanography and hydrographic data for comparison to the horizontal and vertical distribution of herring and sprat. - Collect herring otoliths collected for experiment looking at effects of water on otolith readability.- Update and add to the HERAS Manual ensuring all procedures are up to date. - Undertake training (with two staff members on the survey) as part of participation in the Co-SIC program, this will help to inform the roll out of the pilot scheme to the wider MSS survey program. Narrative in attached cruise report. |
| Chief scientist | Steven O'Connell (Marine Scotland Aberdeen Marine Laboratory) |
| Cruise programme |  (0.13 MB) |
| Cruise report | (0.23 MB) |
| Ocean/sea areas | |
| General | North Sea North East Atlantic Ocean (limit 40W) |
| Specific | Northwestern North Sea and north of Scotland. |
