No abstract

"Acorn barnacle Microeuraphia depressa (Poli, 1791) (Thecostraca: Balanomorpha: Chthamalidae) was recently found in Romania (northwestern Black Sea). Compact populations were found during a rapid biofouling survey in Constanta harbour, on artificial hard substrata (concrete) from the waterline up to 20 cm. Some hypothesis regarding actual and historical presence in the Romanian waters are discussed. Key-Words: Microeuraphia depressa, barnacle, Constanta harbour, Romania, Black Sea. "

"The management of marine areas are guided by environmental policies, such as European Union’s Marine Strategy Framework Directive (MSFD), Water Framework Directive (WFD) and Habitats Directive, all requiring periodic assessment and reporting. In 2020, the macrozoobenthos was monitored on the entire Black Sea Romanian shelf at depths ranging between 10 and 100 m. Out of the 43 sampling points of the marine monitoring network, 56 samples were collected in 22 selected stations distributed among broad sedimentary habitat types in Romanian waters in three marine reporting units (variable salinity waters, coastal waters and marine waters). Six types of sedimentary habitats were identified in the above-mentioned marine reporting units according to Marine Strategy Framework Directive (MSFD). Marine Strategy Framework Directive (MSFD) clearly specifies that assessment must take into consideration benthic broad habitat types, including their associated biological communities. To assess the ecological status according to the MSFD of macrozoobenthos from the Romanian shore, M-AMBI*(n) index was used. Following the assessment, the ecological status of the macrozoobenthic communities was determined as good in all three marine reporting units. The data collected in 2020 will contribute to the six-year assessment of the benthic broad habitats and establishment of thresholds for different sub-types. Key-Words: Black Sea, macrozoobenthos, benthic habitat types, M-AMBI *(n) index, environmental status "