RRS Challenger CH4/75
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Challenger (74CH) |
| Cruise identifier | CH4/75 |
| Cruise period | 1975-03-18 — 1975-03-24 |
| Status | Completed |
| Port of departure | Dunstaffnage, United Kingdom |
| Port of return | Dunstaffnage, United Kingdom |
| Purpose | Research |
| Objectives | The objective of this biological sampling cruise was to obtain the first of a time series of biological samples of the deep-sea benthos, bathypelagic plankton and demersel fish from the deep water area lying to the west of Scotland and Northern Ireland. |
| Chief scientist | John D Gage (Scottish Marine Biological Association) |
| Cruise report |  (2.70 MB) |
| Ocean/sea areas | |
| General | Inner Seas off the West Coast of Scotland North East Atlantic Ocean (limit 40W) |
| Track charts | (0.10 MB) |
| Measurements | |
| Biology and fisheries | |
| Neuston | Quantity: number of hauls = 6 |
| Zoobenthos | Quantity: number of hauls = 6 Description: epibenthic sledge. |
| Demersal fish | Quantity: number of hauls = 3 Description: survey:taxonomy,population |
| Gear research | |
| Exploratory fishing |
