FRV Scotia 5/73

Cruise plan

Cruise Info.
Ship name (ship code)	FRV Scotia (749S)
Cruise identifier	5/73
Cruise period	1973-04-23 — 1973-05-18
Status	Completed
Port of departure	Aberdeen, United Kingdom
Port of return	Aberdeen, United Kingdom
Purpose	Research
Objectives	1. Northern North Sea pre-recruit survey. 2. Environmental survey.
Chief scientist	James A Adams (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Ocean/sea areas
General	Skagerrak North Sea
Measurements
Physical oceanography
Water bottle stations	Quantity: number of stations = 70 Description: Salinity only in one case
Chemical oceanography
Phosphate	Quantity: number of stations = 69
Nitrate	Quantity: number of stations = 69
Total - N	Quantity: number of stations = 69
Silicate	Quantity: number of stations = 69
Contamination
Trace metals	Quantity: number of samples = 3 Description: Concentrations in zooplankton
Other contaminant measurements	Quantity: number of samples = 13 Description: oil pollution
Biology and fisheries
Phytoplankton pigs (eg chlorophyll, fluorescence)	Quantity: number of stations = 69
Phytoplankton	Quantity: number of samples = 27 Description: Phytoplankton counts
Zooplankton	Quantity: number of samples = 62 Description: Gulf III high speed sampler; samples frozen; different types of nets
Demersal fish	Quantity: number of hauls = 57 Description: population surveys