Cruise inventory

RRS John Murray JM1/76_benthic (B/1/76_benthic)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierJM1/76_benthic (B/1/76_benthic)
Cruise period1976-01-16 — 1976-01-19
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
Objectives1. To complete a regular sampling programme to measure the annual bottom-fauna production at an Abra community station in Swansea Bay
2. To commence a regular sampling and photographic programme to measure the annual production at a odiolus community station off Ilfracombe.
3. To collect water samples in Swansea Bay for subsequent bioassay experiments in the laboratory.
4. To obtain a series of bottom photographs along a mid-channel transect of stations to obtain quantitative data on certain benthic species.
Chief scientistRichard Warwick (Institute of Marine Environmental Research, Plymouth)
Cruise reportRRS John Murray JM1/76_benthic (B/1/76_benthic) cruise report john_murray16-19jan_76.pdf — access key 'C' (0.08 MB) 
Ocean/sea areas 
GeneralBristol Channel
SpecificSwansea Bay
Track chartsRRS John Murray JM1/76_benthic (B/1/76_benthic) cruise track — john_murray16-19jan_76track.pdf (00 MB) 
Measurements 
Physical oceanography 
Water bottle stations
Biology and fisheries 
Molluscs
Geology and geophysics 
GrabDescription: Day Grabs of gravelly/stony bottom to allow for the commencement of the Modiolus community production study.
Bottom photography