RRS Challenger CH13/83
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH13/83 |
| Cruise period | 1983-09-16 — 1983-10-02 |
| Status | Completed |
| Port of departure | Dunstaffnage, United Kingdom |
| Port of return | Plymouth, United Kingdom |
| Purpose | Research |
| Objectives | 1. To sample the fish populations of the shelf/slope transition zone on the Hebridean Terrace using a Granton Trawl.
2. To sample the fish populations of the slope of the Hebridean Terrace using the Marinovitch semi-balloon otter trawl. 3. To continue the seasonal survey of the Porcupine Sea Bight using the Granton trawl and the IOS semi-balloon otter trawl. 4. To obtain samples of the tissue from Hoplestethus atlanticus for electrophoretic studies. 5. To obtain blood samples from sharks and chimaeroids for electrophoretic studies. 6. To recover two IOS bathysnaps from the Porcupine Sea Bight. 7. To collect specimens for the Zoological Museum, Copenhagen. |
| Chief scientist | John D M Gordon (Scottish Marine Biological Association) |
| Cruise report |  (0.24 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | N.E. Atlantic/ Rockall Trough/ Porcupine Sea Bight |
| Track charts |  |
| Measurements | |
| Biology and fisheries | |
| Zoobenthos | Quantity: number of hauls = 20 |
| Demersal fish | Quantity: number of hauls = 20 Description: survey:taxonomy,energy transfers,biomass determination,distribution |
| Exploratory fishing | Quantity: number of hauls = 20 |
