Numl.ir ol S|ierl.-s (S). rpliltlve per<eiil .il ti.t.il (l). numhf r ul I u.l I v 1 ih..i I .■. (N) , 

 Inillvldii.iU (%) lor ck h major taxoii rolle>t<'<l .it MlllHtoiie l'i>li>t suMldul st.illi 

 1S80 - June I9H3 . 



iyH3 _ I 'mo -H2 _ 



S " ' I Ra'ngV "n 



66') 

 105 

 8259 



5495 

 1105 



991 

 4 19 



6 54/ 



5573 



241 



376 



91 



12828 



29 - 14 

 - j 



60 replicates per st^itlon 1980. 1981. 1982 a 

 Taxon not indentlfled to the species level. 



During 1983, ten species were collected for the first time at 

 Millstone subtidal stations (Table 7); two were molluscs, four were 

 polychaetes, and four were arthropods. All newly collected taxa were found 

 in low abundance, i.e. usually only one or two individuals collected in 

 1983. These taxa have probably been present in past years, but not collected 

 because of their scarcity. 



Numbers of Species and Community Density 



Quarterly average number of species comprising subtidal communities in 

 1983 ranged from 11/core at IN to 36/core at EF (Fig. 10). The IN 

 community included fewest species, but no station consistently contained 

 the most. The number of species varied considerably over the four sampling 



28 



