CONTENTS 



Page 



Introduction 1 



Methods 1 



Results and discussion 3 



Temperature and salinity 3 



Nutrients 3 



Dissolved oxygen 4 



Sediments 4 



Sediment heavy metals, microorganisms 4 



Sediment organic matter 5 



Benthic macrofauna 5 



Acknowledgments 9 



Literature cited 9 



Figures 



1. Sampling pattern in Long Island Sound 11 



2. Surface temperature, Long Island Sound, April 1973 12 



3. Bottom temperature. Long Island Sound, April 1973 12 



4. Surface temperature. Long Island Sound, September 1973 13 



5. Bottom temperature. Long Island Sound, September 1973 13 



6. Surface temperature, Long Island Sound, summer 1972 14 



7. Bottom temperature. Long Island Sound, summer 1972 14 



8. Surface salinity. Long Island Sound, summer 1972 15 



9. Bottom salinity. Long Island Sound, summer 1972 15 



10. Surface salinity. Long Island Sound, April 1973 16 



11. Bottom salinity. Long Island Sound, April 1973 16 



12. Surface salinity. Long Island Sound, September 1973 17 



13. Bottom salinity. Long Island Sound, September 1973 17 



14. Surface ammonium, Long Island Sound, summer 1972 18 



15. Bottom ammonium, Long Island Sound, summer 1972 18 



16. Surface nitrate. Long Island Sound, summer 1972 19 



17. Bottom nitrate. Long Island Sound, summer 1972 19 



18. Surface nitrite, Long Island Sound, summer 1972 20 



19. Bottom nitrite. Long Island Sound, summer 1972 20 



20. Surface orthophosphorus. Long Island Sound, summer 1972 21 



21. Bottom orthophosphorus. Long Island Sound, summer 1972 21 



22. Surface ammonium. Long Island Sound, April 1973 22 



23. Bottom ammonium. Long Island Sound, April 1973 22 



24. Surface nitrate. Long Island Sound, April 1973 23 



25. Bottom nitrate. Long Island Sound, April 1973 23 



26. Surface orthophosphorus, Long Island Sound, April 1973 24 



27. Bottom orthophosphorus. Long Island Sound, April 1973 24 



28. Surface nitrite. Long Island Sound, April 1973 25 



29. Bottom nirite. Long Island Sound, April 1973 25 



30. Surface urea. Long Island Sound, April 1973 26 



31. Bottom urea. Long Island Sound, April 1973 26 



32. Surface dissolved oxygen. Long Island Sound, summer 1972 27 



33. Bottom dissolved oxygen. Long Island Sound, summer 1972 27 



34. Surface dissolved oxygen, Long Island Sound, April 1973 28 



35. Bottom dissolved oxygen. Long Island Sound, April 1973 28 



36. Surface dissolved oxygen. Long Island Sound, September 1973 29 



37. Bottom dissolved oxygen. Long Island Sound, September 1973 29 



38. Distribution of silts and clays ( <62 ^m) in surface sediments. Long Island Sound, summer 1972 30 



39. Distribution of Shannon-Weaver species diversity values, Long Island Sound, summer 1972 .... 30 



40. Distribution of mud, sand, and transitional faunal assemblages, Long Island Sound, summer 1972 31 



iii 



