TY - JOUR AU - Benovic, A. AU - Lucic, D. AU - Onofri, V. AU - Pehardia, M. AU - Caric, M. AU - Jasprica, N. AU - Bobanovic-Colic, S. PY - 2000/12/30 Y2 - 2024/03/19 TI - Ecological characteristics of the Mljet Islands seawater lakes (South Adriatic Sea) with special reference to their resident populations of medusae JF - Scientia Marina JA - Sci. mar. VL - 64 IS - S1 SE - Articles DO - 10.3989/scimar.2000.64s1197 UR - https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/809 SP - 197-206 AB - Ecological properties and distribution and abundance of medusae were studied over an 18-month period in the Mljet Island seawater lakes, south-east Croatia. Strong stratification during the summer differentiates these lakes from the oligotrophic South Adriatic ecosystem. The lakes are designated as a moderately eutrophicated ecosystem. Very small numbers of hydromedusae were noted, representing only the Anthomedusae and Leptomedusae. A new species of the genus <i>Tima</i> was found in considerable numbers of individuals. High abundance of the scyphomedusa Aurelia sp. was observed throughout the year. This species differs in terms of genetic divergence from <i>Aurelia aurita</i> found elsewhere in the Mediterranean and could be attributed to the boreal origin. ER -