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RRS Challenger CH111
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS Challenger (74CH) |
Cruise identifier | CH111 |
Cruise period | 1994-03-29 — 1994-04-25 |
Status | Completed |
Port of departure | Barry, United Kingdom |
Port of return | Barry, United Kingdom |
Purpose | Research |
Objectives | To obtain a suite of benthic samples from the Porcupine Abyssal Plain (48 50'N 16 30'W) as part of the IOSDL 'DEEPSEAS' programme and wider CEC MAST II funded project for comparison with previous cruises to this site (RRS Discovery 185, RRS Challenger 79) and other NE Atlantic sites (Madeira Abyssal Plain, RRS Discovery 194; Cape Verde Abyssal Plain, RRS Discovery 204).
To recover a Bathysnap (time-lapse camera and current meter) from the main study site, originally deployed from RRS Charles Darwin in September 1992. Time permitting, to visit a site on the Goban Spur to follow up photosledge transect carried out during RRS Challenger 94, which revealed abundant populations of the xenophyophore Syringammina sp.. |
Chief scientist | Brian James Bett (Institute of Oceanographic Sciences Deacon Laboratory) |
Project | OSDL Deep Seas Benthos/MAST II-0033/contr. MAS2-920037 |
Coordinating body | IOSDL/CEC MAST |
Cruise report | (1.10 MB) |
Ocean/sea areas | |
General | North East Atlantic Ocean (limit 40W) |
Specific | Porcupine Abyssal Plain & Goban Spur |
Track charts | |
Measurements | |
Physical oceanography | |
Water bottle stations | Quantity: number of stations = 4 Description: Rosette water bottle sampling - Porcupine Abys. Plain |
Biology and fisheries | |
Pelagic bacteria/micro-organisms | Quantity: number of stations = 4 Description: Rosette water bottle sampling - Porcupine Abys. Plain |
Benthic bacteria/micro-organisms | Quantity: number of deployments = 12 Description: multiple corer - Porcupine Abys. Plain |
Zoobenthos | Quantity: number of deployments = 4 Description: Wide Angle Seab. Photo.,3 Porcupine Abys. Plain,1 Goban Spur |
Zoobenthos | Quantity: number of hauls = 1 Description: Epibenthic sledge (IOSDL type) - Porcupine Abys. Plain |
Zoobenthos | Quantity: number of deployments = 7 Description: box corer,UNSEL type, 4 Porcupine Abys. Plain, 3 Goban Spur |
Zoobenthos | Quantity: number of profiles = 12 Description: multiple corer - Porcupine Abys. Plain |
Zoobenthos | Quantity: number of hauls = 4 Description: Otter trawl (OTSB14) - Porcupine Abys. Plain |
Demersal fish | Quantity: number of hauls = 4 Description: Otter trawl (OTSB14) - Porcupine Abys. Plain |
Geology and geophysics | |
Bottom photography | Quantity: number of deployments = 4 Description: Wide Angle Seab. Photo.,3 Porcupine Abys. Plain,1 Goban Spur |
Moorings, landers, buoys | |
Biology and fisheries | |
Zoobenthos | 49° 43' 0" N 13° 16' 59" W — DEMAR - as above - (B18, B21) |
Zoobenthos | 48° 46' 59" N 16° 34' 0" W — baited amphipod traps (IOSDL DEMAR type) |
Zoobenthos | 48° 51' 0" N 16° 25' 59" W — as above (B18, B21) |
Demersal fish | 48° 52' 0" N 16° 31' 59" W — as above (B19, B37, B90) |
Demersal fish | 48° 52' 0" N 16° 25' 0" W — as above (B19, B37, B90) |
Demersal fish | 48° 52' 59" N 16° 23' 59" W — as above (B19, B37, B90) |
Demersal fish | 49° 46' 0" N 13° 28' 0" W — AUDOS - as above - (B19, B37, B90) |
Demersal fish | 48° 47' 59" N 16° 19' 59" W — AUDOS (Aberdeen University Deep Ocean Submersible) |
Crustaceans | 48° 49' 0" N 16° 31' 0" W — as above (B18, B21) |
Taggings | 48° 58' 0" N 16° 37' 59" W — acoustic tag, tracking and photography of scavenging |
Other biological/fisheries measurement | 48° 52' 0" N 16° 30' 0" W — depl. long term time-lapse camera (IOSDL Bathysnap) |
Other biological/fisheries measurement | 48° 55' 59" N 16° 22' 59" W — Rec. long term time-lapse camera (IOSDL Bathysnap) |
Other biological/fisheries measurement | 48° 49' 59" N 16° 22' 59" W — demersal fish |
Other biological/fisheries measurement | 48° 52' 59" N 16° 19' 59" W — Short term deployment of baited bathysnap |