RRS Challenger CH6/82
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH6/82 |
| Cruise period | 1982-04-08 — 1982-04-20 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Ardrossan, United Kingdom |
| Purpose | Research |
| Objectives | 1. Studies of microbial activity in the deep sea and shelf sediment, in the water overlying these sediments and in surface waters, using the SMBA multiple corer, NIO water bottles and pump samples (University College, Galway, Glasgow University and Heriot-Watt University).
2. Studies of the microbiological, chemical and physical properties of deep sea sediments, using the SMBA multiple corer (Glasgow University). 3. Sampling of meiofauna and benthic foraminifera of the deep sea, Porcupine Seabight and shelf sediments, using the SMBA multiple corer (SMBA and IOS). 4. Studies of the distribution of planktonic formainifera by means of vertical tow nets, pump samples and cores. Two pump sample transects to plot the distribution of planktonic foraminifera between the Porcupine Bank and Rockall Trough (University College of Wales, Aberystwyth).. 5. A transect of five stations from 750m to 385m across the southern shoulder of the Porcupine Banl, along latitude 51 42'N, to investigate the possibility of a localised erosion zone at 460m. The samples to be sectioned and processed onboard ship for later studies of sediment and fauna at the Lowestoft Laboratory of the Ministry of Agriculture, Fisheries and Food. Four cores to be collected at each of the five stations along this transect. |
| Chief scientist | B Hardy (Scottish Marine Biological Association) |
| Cruise report |  (0.68 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Specific | N.E. Atlantic/ West of Ireland |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 25 Description: 5 T bottom 2 S bottom |
| Chemical oceanography | |
| Oxygen | |
| Ammonia | |
| Biology and fisheries | |
| Zooplankton | |
| Benthic bacteria/micro-organisms | Quantity: number of cores = 8 |
| Zoobenthos | Quantity: number of hauls = 15 Description: survey: taxonomy and distribution |
| Geology and geophysics | |
| Core - soft bottom | Quantity: number of cores = 5 Description: paleontology |
