RV Corystes COR5/00
Cruise summary report
|Ship name (ship code)||RV Corystes (74RY)|
|Cruise period||2000-04-05 — 2000-04-26|
|Port of departure||Lowestoft, United Kingdom|
|Port of return||Lowestoft, United Kingdom|
|Objectives||1. To evaluate performance of CEFAS 76 kHz sonar buoys and coded acoustic tags for monitoring the movements of cod at sea.
2. To tag cod with 76kHz coded acoustic tags and monitor their movements remotely using a sonar buoy.
3. To use acoustic and fishing survey methods to estimate the abundance and distribution of sandeels on sandeel fishing grounds on the Western Dogger Bank.
4. To use acoustic survey methods (QTC and sidescan sonar) to describe sediment type in relation to sandeel distribution and abundance in some areas.
|Chief scientist||Julian David Metcalfe (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)|
|Cruise report||(0.28 MB)|
|Specific||Western side of the Dogger Bank (NW Riff)|
|Track charts||(0.01 MB)|
|Biology and fisheries|
|Pelagic fish||Quantity: track kilometres = 450.036|
Description: Distribution of sandeel shoals detected using scientific echosounder (EK500, 38-120 1
|Pelagic fish||Quantity: number of stations = 63|
Description: Sandeel samples taken using a 1.2m sandeel dredge towed for 10 minutes at each station
|Demersal fish||Quantity: number of stations = 4|
Description: Half-hour tows with Granton trawl
|Geology and geophysics|
|Single-beam echosounding||Quantity: track kilometres = 450.036|
Description: QTC acoustic survey of sea bed sediment
|Long/short range side scan sonar||Quantity: track kilometres = 450.036|
Description: Side Scan Sonar of sea floor