CONTENTS 



Introduction 



Incident solar radiation 



Instrumentation 



Connparison of observed and computed values 



Submarine irradiance 



Definitions 



Instrumentation 



The irradiance meter 



Characteristics of the photovoltaic cells and filters 



Relative spectral sensitivity of the detector in air and in sea water 



Observational technique and computations 



Errors in determination of k values 



Optical depth determinations 



Chlorophyll a 



Sample collection 



Sample treatment 



Pigment extraction and deternnination of chlorophyll a concentration 



Wavelength and blank corrections 



Accuracy and precision of chlorophyll a determinations and sampling errors. 



Interpretation of results 



Primary production 



Sannple collection and incubation 



C ^'^ technique 



Evaluation of incubation techniques 



Summary 



Literature cited 



Page 



