N. Gouvis et al., TEMPORAL CHANGES OF A MACROBENTHIC ASSEMBLAGE IN EVROS DELTA (NORTH AEGEAN SEA), Internationale Revue der gesamten Hydrobiologie, 82(1), 1997, pp. 67-80
Monthly samples of the macrobenthic fauna were collected during Februa
ry 1983-February 1984, in a coastal lagoon of Evros Delta (North Aegea
n Sea), characterized by a very strong monthly fluctuation of temperat
ure and salinity. 3 groups of samples were distinguished, the first in
cluding those taken during the spring months, the second, those taken
during summer and autumn, and the third, the samples of winter months.
All the above samples were homogeneous concerning number of species,
species richness (MARGALEF index) and evenness, but not as far as spec
ies diversity (SHANNON-WIENER index) is concerned. The monthly variati
on of the total number of individuals and total biomass was significan
t, with highest values in spring, beginning of summer and autumn. Most
months, polychaetes dominating, having the highest relative abundance
and wet biomass. The 8 dominating species, which had a cumulative dom
inance of about 93%, showed strong monthly variation of abundance and
biomass.