RRS Challenger CH11/80
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH11/80 |
| Cruise period | 1980-07-28 — 1980-08-11 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | 1. To continue the seasonal sampling of the deep-sea demersal fish populations of the upper slope (500-1250m) of the Porcupine Sea Bight using the SMBA Granton Trawl.
2. To continue the seasonal survey of the deep-sea fish populations of the Porcupine Sea Bight (500-4800m) using the IOS semi-balloon trawl (OTSB 14). 3. To sample the benthos at two stations (4000 & 2700m) in the Porcupine Sea Bight with the IOS epibenthic sledge (BN 1.5-3m + SBN 0.5). 4. To obtain samples of shark liver and ovaries for Dr. Craik (SMBA). 5. To collect samples of fish from deep stations for Dr. Pentreath (MAFF Radiobiological Laboratories). 6. To collect surface plankton samples with the IOS Neuston net. |
| Chief scientist | John D M Gordon (Scottish Marine Biological Association) |
| Cruise report |  (0.30 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | N.E. Atlantic |
| Track charts |  |
| Measurements | |
| Biology and fisheries | |
| Zoobenthos | Quantity: number of hauls = 24 Description: survey to determine taxonomy, energy transfers, biomass and distribution. |
| Demersal fish | Quantity: number of hauls = 24 |
| Exploratory fishing | Quantity: number of hauls = 24 |
