7-11 



I 





OPEN SYMBOLS REPRESENT SPECIES ABSENCE 

 CLOSED SYMBOL REPRESENTS SPECIES 



^ 30 LLUbtU SYMBOL KLPRLStNIS SFhi 

 A !§ D 580 COLLECTED IN LOW DENSITIES 



EAST LONG SANDY 

 SHORE WHARF POINT 



1971 



§; 



1971 



Mya arenaria 



I 



1. 



AD/v A^« ABO A^» _;$:< AJyo Ax-O 



. 



., 



1972 1973 



1974 

 MAY 



1975 



1976 1977 



^ Axxjii 



2696 2888 



II 



1972 



^O J 



O -^>. AMI 



1973 1974 1975 

 OCTOBER 



1976 1977 



00 

 C/1 



o 



300n 



200' 



100' 



Gemma gemma 

 m 



AD* AD 



1971 



1972 1973 



I 



AOac Ali^O ABO ADO 



1974 

 MAY 



3616^2880 CS. 



>- 

 h- 

 I — I 



z: 



LU 

 Q 



L 



300' 



200- 



100' 



1975 



1976 1977 



Aa a A y g i^S 



1971 



1972 



^O A^O ADg Av\0 



1973 1974 1975 

 OCTOBER 



1976 1977 



200- 



100- 



Ilyanassa obsoleta 



276 4fi4 1(140 



«/1 

 to 



< 



cm 

 o 



>- 

 I— 

 I— I 



z 



UJ 



a 



AD" 



lOOn 



ADO ADg ADa; ADi< 



AD< 



ADO 



1971 



1972 1973 1974 1975 



1976 1977 



200n 



100- 



ADO 



00 



2: 

 00 



'-' 300n 

 o 



Macoma batthica 



^ 



ADJ8 ADM ABO A^O A»0 A'^O ADO 



1971 



1972 1973 



200 



iO Av\0 



>- 

 I— 

 I— t 

 00 



LjJ 

 O 



100 



1974 

 MAY 



1975 



1976 1977 



§ 



&m 



1971 



1972 



1973 1974 1975 

 OCTOBER 



1976 1977 



1971 



1972 



1973 1974 1975 

 OCTOBER 





ADflt A^^O ADO aS« ado A^ 



Ms. 



1976 1977 



Figure 7-2. Population densities of dominant molluscs^ Mya arenariay 

 Gemma gemma:, Ityanassa obsoleta and Macoma balthiaa by 

 station at Intertidal Areas in New Haven Harbor 1971 

 through 1977. New Haven Harbor Ecological Studies 

 Summary Report, 1979. 



