Table 1 Monthly variation (mean ± SD) of planktonic and benthic organisms

Plankton

Copepods

 Harpacticus sp.

40 ± 85

14 ± 11

24 ± 17

17 ± 25

 Halicyclops sp.

4 ± 3

2 ± 3

4 ± 4

6 ± 8

 Dactylopusia sp.

6 ± 4

1 ± 1

-

3 ± 4

Cyclopoida

1 ± 2

-

-

-

Benthos

a/c

a/c

a/c

a/c

Polychaetes

 Nereididae

6 ± 7/6 ± 3

-

-

-

 Perinereis gualpensis

17 ± 15/16 ± 15

29 ± 14/42 ± 12

23 ± 24/27 ± 21

-

 Boccardia sp.

-

5 ± 1/7 ± 4

6 ± 5/10 ± 8

-

 Polychaete sp.

-

-

1 ± 2/1 ± 1

36 ± 43/7 ± 10

Foraminifers

 Ammonia beccarii

3 ± 1/6 ± 7

-

1 ± 2/1 ± 2

-

Amphipods

 Corophium insidiosum

8 ± 14/8 ± 13

-

1 ± 1/1 ± 1

-

 Heterophoxus sp.

1 ± 2/1 ± 1

-

-

-