RRS Challenger CH6A/77
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH6A/77 |
| Cruise period | 1977-04-04 — 1977-04-12 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Dunstaffnage, United Kingdom |
| Purpose | Research |
| Objectives | 1. To obtain epibenthic sledge samples of the abyssal macrobenthos from the SMBA permanent station in the Southern Rockall Trough in order to continue a time series initiated in November 1975.
2. To carry out plankton sampling and exploratory bottom sampling in the Porcupine Bank area for D.I. Williamson of Port Erin. 3. To undertake analysis of halocarbons and nitrogen oxides from air and seawater samples from the water to the west of the British Isle. 4. To undertake trials of a newly constructed box core sampler for quantitative sampling of deepwater benthos. 5. To obtain samples of the abyssal megafauna using an Agassiz trawl. |
| Chief scientist | John D Gage (Scottish Marine Biological Association) |
| Cruise report |  (0.27 MB) |
| Ocean/sea areas | |
| General | Inner Seas off the West Coast of Scotland North East Atlantic Ocean (limit 40W) |
| Track charts |  |
| Measurements | |
| Contamination | |
| Other contaminant measurements | Quantity: number of stations = 6 Description: halocarbons and nitrous oxides |
| Biology and fisheries | |
| Zoobenthos | Quantity: number of hauls = 10 Description: survey:taxonomy,population studies |
