CONTENTS 



Page 

 1 



1 



Introduction 



Methods 



Abundance and distribution of zooplankton " 



Relationships between zooplankton and characteristics of water ° 



Temperature ' - 



Salinity '2 



Dissolved oxygen '2 



Comparison of abundance and distribution of zooplankton in 1970 and 1947 15 



Summary '" 



Acknowledgments J^ 



Literature cited 



18 



Figures 



1. Station locations at which zooplankton samples were taken by the USCG 



icebreaker Glacier in 1970 and by the USS Nereiis in 1947 and the number 



of species collected at each station - 



2. Abundance of the hydromedu^an A glantha digitate contoured in powers of 6 per 



100 m-' 10 



3. Abundance of chaetognath Sagitta elegans contoured in powers of 3 per 100 m^ . . 10 



4. Abundance of pteropod Clione limacina contoured in powers of 3 per 100 m^ 



Presence ofSpiratella limacina indicated by X 10 



5. Abundance of the copepod /ltY;/7/V/ longiremis contoured in powers of 3 per 100 



m-' 1 : 



6. Abundance of the copepod Calaniis finmarchicus contoured in powers of 3 per 



100 m^ 11 



7. Abundance of the copepod Centropages ahdominalis contoured in powers of 3 



per 100 m^ 1 1 



8. Abundance of the copepod Eucalaniis bungii contoured in powers of 3 per 100 



m^ 1 i 



9. Abundance of the copepod Pseudocalanus ininutus contoured in powers of 3 per 



100 m' 1 



10. Abundance of calanoid copepods (all species) contoured in powers of 4 per 100 



m^ 12 



11. Sea temperature distributions at surface, 10 m, and bottom, eastern Chukchi 



Sea off Cape Lisbume-Icy Cape, 25 September to 17 October 1970. Redrawn 



from Ingham and Rutland (1972) 13 



12. Salinity distributions at surface, 10 m, and bottom, eastern Chukchi Sea off Cape 



Lisbume-Icy Cape, 25 September to October 1970. Redrawn from Ingham and 



Rutland (1972) 13 



13. Dissolved oxygen distributions at surface, 10 m, and near bottom, eastern 



Chukchi Sea off Cape Lisbume-Icy Cape, 25 September to 17 October 1970. 

 Redrawn from Ingham and Rutland ( 1972) 14 



14. Contours of percent saturation of dissolved oxygen at surface, 10 m, and near bot- 



tom, eastern Chukchi Sea, Cape Lisbume-Icy Cape, 28 September to 17 

 October 1970. Redrawn from Ingham and Rutland (1972) 14 



Tables 



1 . Location, depth, date, time, and number of species collected for 39 stations occu- 

 pied by the USCG icebreaker Glacier, 26 September to 17 October 1970 . . . . 



Ill 



