CONTENTS 



Page 



Method and materials 3 



Identification of the larvae 5 



Observations 6 



Discussion and conclusions 25 



Summary 27 



Literature cited. 28 



ILLUSTRATIONS 

 Fig. Page 



1. Narragansett Bay . h 



2. Weekly averages of surface temperatures in Wickford Harbor.... 7 



3. Weekly averages of Mya larval abundance in Wickford Harbor 



in 1950 777 9 



h. Weekly averages of Venus larval abundance in Wickford Harbor 



in 1950 . 11 



5. Weekly averages of Mya larval abundance in Wickford Harbor 



in 1951 • lU 



6. Weekly averages of Venus larval abundance in Wickford Harbor 



in 1951 15 



7. Weekly averages of Mya larval abundance in Wickford Harbor 



in 1952 ...... 16 



3. Weekly averages of Venus larval abundance in Wickford Harbor 



in 1952 18 



9. Weekly averages of Venus larval abundance, Western half of 



Greenwich Baj r in 1951 19 



10. Weekly averages of Venus larval abundance, Eastern half of 



Greenwich Vay in 1951 20 



11. Weekly averages of surface temperatures in Greenwich Bay...... 22 



12. Weekly averages of Venus larval abundance in the Eastern half 



of Greenwich Bay in 1952. 23 



13. Weekly averages of Venus larval abundance in the Western half 



of Greenwi ch Bay in 1952 2\\ 



