Fiskebas 2020823
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | Fiskebas (58KJ) |
| Cruise identifier | 2020823 |
| Cruise period | 2020-09-21 — 2020-10-04 |
| Status | Completed |
| Port of departure | Bergen, Norway |
| Port of return | Ålesund, Norway |
| Purpose | Research |
| Objectives | Objectives
- Develop and test optical and acoustic instruments and methods for monitoring fishing behaviour and catch composition during fishing with nets. - Study how catch handling affects the fish's welfare and thereby survival after release from net and quality. |
| Chief scientist | Maria Tenningen (Institute of Marine Research, Norway), Michael Breen (Institute of Marine Research, Norway) |
| Cruise report |  (2.55 MB) |
| Ocean/sea areas | |
| General | North Sea Norwegian Sea |
| Measurements | |
| Physical oceanography | |
| CTD stations | Quantity: number of hauls = 5 Description: Temperature measured inside purse seine |
| Chemical oceanography | |
| Oxygen | Quantity: number of hauls = 5 Description: Dissolved oxygen measured inside purse seine |
| Biology and fisheries | |
| Pelagic fish | Quantity: number of samples = 18 Description: Length and weight of individual mackerel (from hook & line) |
| Pelagic fish | Quantity: number of hauls = 5 Description: Length, weight and vitality of individual mackerel (from purse seine) |
| Pelagic fish | Quantity: number of hauls = 5 Description: Underwater video - behaviour of captured mackerel (in purse seine) |
| Pelagic fish | Quantity: number of observations = 12 Description: Underwater stereo-grammetry of length of individual mackerel |
| Acoustic reflection on marine organisms. | Quantity: activity duration in days = 5 Description: Sonar & echosounder data from mackerel schools |
| Gear research | Quantity: number of hauls = 9 Description: Monitoring purse seine during capture |
| Moorings, landers, buoys | |
| Physical oceanography | |
| CTD stations | 59° 27' 3" N 0° 9' 10" W — 27Sep20. CMP (Cast03) Temperature - Deployed & recovered |
| CTD stations | 58° 49' 10" N 0° 6' 31" E — 02Oct20. CMP (Cast09) Temperature - Deployed & recovered |
| CTD stations | 59° 26' 15" N 0° 9' 13" W — 29Sep20. CMP (Cast06) Temperature - Deployed & recovered |
| CTD stations | 59° 26' 15" N 0° 9' 13" W — 27Sep20. CMP (Cast03) Temperature - Deployed & recovered |
| CTD stations | 59° 27' 3" N 0° 9' 10" W — 29Sep20. CMP (Cast05) Temperature - Deployed & recovered |
| CTD stations | 59° 39' 45" N 0° 43' 7" W — 27Sep20. CMP (Cast03) Temperature - Deployed & recovered |
| CTD stations | 59° 41' 21" N 0° 42' 23" W — 27Sep20. CMP (Cast02) Temperature - Deployed & recovered |
| Chemical oceanography | |
| Oxygen | 59° 27' 3" N 0° 9' 10" W — 27Sep20. CMP (Cast03) Dissolved oxygen - Deployed & recovered |
| Oxygen | 59° 26' 15" N 0° 9' 13" W — 27Sep20. CMP (Cast03) Dissolved oxygen - Deployed & recovered |
| Oxygen | 58° 49' 10" N 0° 6' 31" E — 02Oct20. CMP (Cast09) Dissolved oxygen - Deployed & recovered |
| Oxygen | 59° 26' 15" N 0° 9' 13" W — 29Sep20. CMP (Cast06) Dissolved oxygen - Deployed & recovered |
| Oxygen | 59° 41' 21" N 0° 42' 23" W — 27Sep20. CMP (Cast02) Dissolved oxygen - Deployed & recovered |
| Oxygen | 59° 39' 45" N 0° 43' 7" W — 27Sep20. CMP (Cast03) Dissolved oxygen - Deployed & recovered |
| Oxygen | 59° 27' 3" N 0° 9' 10" W — 29Sep20. CMP (Cast05) Dissolved oxygen - Deployed & recovered |
| Biology and fisheries | |
| Pelagic fish | 59° 28' 42" N 0° 9' 33" W — 27Sep20. Stereo-camera (probe). Deployed & recovered |
| Pelagic fish | 59° 49' 24" N 0° 6' 42" E — 02Oct20. Stereo-camera (probe). Deployed & recovered |
| Pelagic fish | 59° 27' 3" N 0° 9' 10" W — 29Sep20. CMP (Cast05) Catch behaviour - Deployed & recovered |
| Pelagic fish | 59° 41' 21" N 0° 42' 23" W — 27Sep20. Stereo-camera (ROV). Deployed & recovered |
| Pelagic fish | 59° 41' 35" N 0° 41' 58" W — 27Sep20. Stereo-camera (probe). Deployed & recovered |
| Pelagic fish | 59° 43' 11" N 0° 42' 44" W — 27Sep20. Stereo-camera (probe). Deployed & recovered |
| Pelagic fish | 59° 44' 16" N 0° 40' 32" W — 25Sep20. Stereo-camera (probe & ROV). Deployed & recovered |
| Pelagic fish | 59° 30' 4" N 0° 46' 59" W — 25Sep20. Stereo-camera (ROV). Deployed & recovered |
| Pelagic fish | 59° 23' 21" N 0° 54' 44" W — 23Sep20. Stereo-camera (probe & ROV). Deployed & recovered |
| Pelagic fish | 59° 26' 15" N 0° 9' 13" W — 27Sep20. CMP (Cast03) Catch behaviour - Deployed & recovered |
| Pelagic fish | 59° 27' 3" N 0° 9' 10" W — 27Sep20. CMP (Cast03) Catch behaviour - Deployed & recovered |
| Pelagic fish | 58° 49' 10" N 0° 6' 31" E — 02Oct20. CMP (Cast09) Catch behaviour - Deployed & recovered |
| Pelagic fish | 59° 39' 45" N 0° 43' 7" W — 27Sep20. CMP (Cast03) Catch behaviour - Deployed & recovered |
| Pelagic fish | 59° 39' 45" N 0° 43' 7" W — 27Sep20. Stereo-camera (ROV). Deployed & recovered |
| Pelagic fish | 59° 28' 5" N 0° 48' 52" W — 25Sep20. Stereo-camera (ROV). Deployed & recovered |
| Pelagic fish | 59° 41' 21" N 0° 42' 23" W — 27Sep20. Catch monitoring probe (CMP) Cast02 – Catch behaviour - Deployed & recovered |
| Pelagic fish | 59° 26' 15" N 0° 9' 13" W — 29Sep20. CMP (Cast06) Catch behaviour - Deployed & recovered |
