Cruise summary report
Cruise Info. | |
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Ship name (ship code) | Unity (74UT) |
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Cruise identifier | 0307H |
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Cruise period | 2007-05-07 — 2007-05-21 |
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Status | Completed |
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Port of departure | Fraserburgh, United Kingdom |
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Port of return | Fraserburgh, United Kingdom |
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Purpose | Fisheries |
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Objectives | Objectives
1. To carry out mackerel egg survey (ICES Triennial Survey), on the western shelf edge.
2. To collect fish samples from trawling for atresia and maturity assessment.
Narrative
Unity sailed from Fraserburgh at 1200 on the 7 May and proceeded into the Buchan Deeps in the Moray Firth to test deployment of samplers and trawls and to calibrate the sampler flowmeters. The vessel arrived at the first station (59 45N, 5 15W) at approximately 1200 on the 8 May to commence the survey. Survey stations were then taken at 30'E/W intervals, on transects separated by one degree of latitude. This was continued to the southernmost transect along 55 15N. The survey then continued to transect northwards, mainly occupying transects at 15' in each degree of latitude. i.e. on alternate rows of latitude to those covered during the first half. Sampling was completed at 0700 on the 20 May and the ship headed for Fraserburgh and landed at 1000 on the 21 May. |
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Chief scientist | David G Reid (Fisheries Research Services Aberdeen Marine Laboratory) |
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Project | MF01Ta |
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Coordinating body | ICES |
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Cruise programme | (0.24 MB) |
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Cruise report | (0.08 MB) |
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Ocean/sea areas | |
General | Celtic Sea North East Atlantic Ocean (limit 40W) |
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Specific | Western Continental Shelf |
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Track charts | (0.07 MB) |
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Measurements | |
Biology and fisheries | |
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Phytoplankton | Quantity: number of stations = 110 Description: plankton with Gulf VIII |
Zooplankton | Quantity: number of stations = 110 Description: plankton with Gulf VIII |
Eggs and larvae | Quantity: number of stations = 110 Description: plankton with Gulf VIII, mackerel eggs |
Pelagic fish | Quantity: number of hauls = 4 Description: trawls for adult mackerel and horse mackerel |
Other biological/fisheries measurement | Description: ovary samples, information on length, sex, maturity, age and total, gutted and liver weight collected |