CONTENTS 



INTRODUCTION 1 



SUMMARY OF PRELIMINARY RESULTS 1 



Interrelationships of standing crops - phytoplankton, zooplankton, and nekton ... 1 



Zooplankton standing crops around Ocean Islands 3 



Oceanographic survey of Gulf of Tehuantepec 3 



Experimental assessment of phytoplankton-limiting nutrients and the culturing 



of pelagic phytoplankton 5 



Animals from night-light collections 7 



PROCEDURES 7 



Regular forenoon stations 7 



Regular night stations 7 



hi situ and other special stations 7 



Underway routine 10 



Continuous observations 10 



METHODS 10 



Weather observations 10 



Temperature, salinity, density, thermosteric anomaly, and dynamic 



height anomaly 11 



Inorganic phosphorus 11 



Dissolved oxygen 11 



Submarine daylight 11 



Incident solar radiation 12 



Chlorophyll a standing crop 12 



Zooplankton standing crop 12 



Nekton standing crop 13 



Night-light observations 13 



Bathythermograph observations 13 



Surface current velocity and direction (GEK) 13 



Primary production 14 



SUMMARY OF STATION WORK 15 



SPECIAL ABBREVIATIONS IN TABLES 22 



STATION DATA 23 



SUMMARY OF BATHYTHERMOGRAPH OBSERVATIONS 97 



SUMMARY OF SURFACE CURRENT (GEK) OBSERVATIONS 105 



LIST OF ILLUSTRATIONS 



Fig. 1. Track of SCOT Expedition showing noon stations 



Fig. 2. Surface chlorophyll a-zooplankton volume (small organisms) relationship 



for EASTROPIC, SCOPE, and SCOT 



Fig. 3. Water column chlorophyll a-zooplankton volume (small organisms) 



relationship for SCOPE and SCOT 



Fig. 4. Regression of nekton volume, including jellies, standardized to a haul time 

 of 65 irinutes, on zooplankton volume (small organisms) 



