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- 6735
FRV Scotia 0905S
Cruise summary report
Cruise Info. | |||||||||||||||||||||||||||||
Ship name (ship code) | FRV Scotia (748S) | ||||||||||||||||||||||||||||
Cruise identifier | 0905S | ||||||||||||||||||||||||||||
Cruise period | 2005-06-28 — 2005-07-18 | ||||||||||||||||||||||||||||
Status | Completed | ||||||||||||||||||||||||||||
Port of departure | Aberdeen, United Kingdom | ||||||||||||||||||||||||||||
Port of return | Aberdeen, United Kingdom | ||||||||||||||||||||||||||||
Purpose | Research | ||||||||||||||||||||||||||||
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'N to 61° 45'N and 4° W to 2° E, excluding Faroese waters.
2. To obtain 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 for acoustic identification work. 6. To test the new multisampling pelagic cod end. Data on salinity, temperature, fluorescence, light transmission and optical particle counts were collected A half landing took place in Lerwick on the 08/07/2005 and there was an exchange or personnel. The vessel resumed surveying on the 09/07/2005. | ||||||||||||||||||||||||||||
Chief scientist | Paul G Fernandes (Fisheries Research Services Aberdeen Marine Laboratory) | ||||||||||||||||||||||||||||
Cruise programme | (0.02 MB) | ||||||||||||||||||||||||||||
Cruise report | (0.02 MB) | ||||||||||||||||||||||||||||
Ocean/sea areas | |||||||||||||||||||||||||||||
General | North Sea North East Atlantic Ocean (limit 40W) | ||||||||||||||||||||||||||||
Specific | north western North Sea, Shetland and Orkney region, north of Scotland | ||||||||||||||||||||||||||||
Measurements | |||||||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||||||
CTD stations | Quantity: number of stations = 6 | ||||||||||||||||||||||||||||
Biology and fisheries | |||||||||||||||||||||||||||||
Phytoplankton | Quantity: number of deployments = 36 Description: ARIES vehicle collected hydrographic and integrated whole column plankton data in two PUP nets and specific depth plankton samples | ||||||||||||||||||||||||||||
Zooplankton | Quantity: number of deployments = 36 Description: ARIES vehicle collected hydrographic and integrated whole column plankton data in two PUP nets and specific depth plankton samples | ||||||||||||||||||||||||||||
Pelagic fish | Quantity: number of hauls = 36 Description: 28 contained herring. 1915 herring were sampled for weight, sex, maturity and otoliths. A subset of these were sampled for fat content | ||||||||||||||||||||||||||||
Acoustic reflection on marine organisms. | Quantity: data volume in gigabytes = 50 Description: All acoustic data were scrutinised and saved as daily Echoview files. 2 calibrations of the transducers were carried out | ||||||||||||||||||||||||||||
Data held at BODC | Get data | ||||||||||||||||||||||||||||
Series/Profiles | |||||||||||||||||||||||||||||
6 CTD/STD cast | Transmittance and attenuance of the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Electrical conductivity of the water column Chlorophyll pigment concentrations in water bodies Transmittance and attenuance of the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Electrical conductivity of the water column Chlorophyll pigment concentrations in water bodies
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