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- 2775
RRS Challenger CH9/84
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Challenger (74CH) |
Cruise identifier | CH9/84 |
Cruise period | 1984-10-29 — 1984-11-13 |
Status | Completed |
Port of departure | Ardrossan, United Kingdom |
Port of return | Ardrossan, United Kingdom |
Purpose | Research |
Objectives | 1. To sample the fish populations of the Rockall Trough using the Granton trawl and the semi-balloon otter trawl.
2. To sample the fish populations of the Porcupine Sea Bight using the Granton trawl and the semi-balloon otter trawl. 3. To carry out near-bottom sampling with the RMT 8. 4. To experiment with lights attached to bottom trawls. 5. To experiment with midwater trawls. 6. To collect material for Institutes and Universities. |
Chief scientist | John D M Gordon (Scottish Marine Biological Association) |
Cruise report | (0.42 MB) |
Ocean/sea areas | |
General | North East Atlantic Ocean (limit 40W) |
Specific | Rockall Trough/ Porcupine Bight |
Track charts | |
Measurements | |
Biology and fisheries | |
Zooplankton | Quantity: number of hauls = 7 |
Eggs and larvae | Quantity: number of hauls = 7 |
Zoobenthos | Quantity: number of hauls = 15 |
Pelagic fish | Quantity: number of hauls = 12 Description: survey:taxonomy,distribution,biomass determination,energy transfers |
Demersal fish | Quantity: number of hauls = 14 Description: survey:taxonomy,distribution,biomass determination,energy transfers |
Gear research | Quantity: number of hauls = 8 Description: the effect of artificial light on trawls. |
Exploratory fishing | Quantity: number of hauls = 26 |