RRS Challenger CH8/80
Cruise summary report
|Ship name (ship code)||RRS Challenger (74CH)|
|Cruise period||1980-05-10 — 1980-05-23|
|Port of departure||Ardrossan, United Kingdom|
|Port of return||Ardrossan, United Kingdom|
|Objectives||1. To study the bacteria in deep-sea and shelf sediments and in the water overlying these sediments, using the SMBA multiple corer. Particular attention to be paid to the oragnisms concerned with organic degredation and nitrate and sulphate reduction in the deep sea and shelf sediments. Rates of oxygen uptake, the uptake of selected carbon substrates and ATP levels measured. Continuous flow enrichment cultures using bottom sediments to be set up at the beginning of the cruise and to continue for the duration of the cruise in a study of bacterial growth on inert surfaces at low nutrient concentrations.
2. Sampling of the meiofauna of the deep sea and shelf sediments, using the SMBA multiple corer. Bottom photography at the sampling stations.
3. Studies of the distribution of planktonic foraminifera by means of vertical tow nets, pump sampling, and cores.
4. Agassiz trawling for fish and bottom invertebrates to supply additional material for SMBA deep-sea fish studies and IOS macrobenthos studies, to be undertaken if time permits.
|Chief scientist||B Hardy (Scottish Marine Biological Association)|
|Cruise report||(0.71 MB)|
|General||North East Atlantic Ocean (limit 40W)|
|Water bottle stations||Quantity: number of stations = 3|
Description: Measured for biological studies bottom only
|Other chemical oceanographic measurements|
|Biology and fisheries|
|Benthic bacteria/micro-organisms||Quantity: number of stations = 3|
|Zoobenthos||Quantity: number of hauls = 8|
Description: survey: taxonomy and distribution.
|Geology and geophysics|
|Core - soft bottom||Quantity: number of cores = 4|