ON THE OCCURRENCE OF CALYCOPHORAE (SIPHONOPHORA) IN THE SOUTHERN ADRIATIC AND TYRRHENIAN SEA - A COMPARISON OF THE ANNUAL CYCLES OFF DUBROVNIK AND NAPLES
T. Gamulin et F. Krsinic, ON THE OCCURRENCE OF CALYCOPHORAE (SIPHONOPHORA) IN THE SOUTHERN ADRIATIC AND TYRRHENIAN SEA - A COMPARISON OF THE ANNUAL CYCLES OFF DUBROVNIK AND NAPLES, Journal of plankton research, 15(7), 1993, pp. 855-865
The 1965/66 samples taken monthly at three stations in the Bay of Napl
es and in the south of Dubrovnik were used to compare the calycophore
fauna of the Tyrrhenian Sea and the Adriatic. Nearly identical calycop
hore fauna were found, except for three rare Atlantic forms registered
only by the deep-sea station in the Tyrrhenian Sea. Of numerical impo
rtance were the neritic species Muggiaea kochi, Lensia subtilis, Sphae
ronectes gracilis and S. irregularis, and the characteristic open-sea
species Eudoxoides spiralis and the deep-sea species Lensia meteori. T
he annual numerical abundance maxima in both areas were noted in sprin
g. However, in the Tyrrhenian Sea, the values were two times higher, w
hich agrees with the productivity patterns.