Radioactivity in three species of eastern Mediterranean jellyfish

210Po and 210Pb concentration in zooplankton of the Syrian coastal waters (eastern Mediterranean Sea)

“…However, these surface seawater results are within the world surface seawater values (1 mBq l -1 for 210 Po, and between 0.1 and 0.4 mBq l -1 for 210 Pb, Table 2). The average activity concentrations of 210 Po and 210 Pb of 44 surface seawater samples collected from the Syrian coastal waters ranged between 1.1 and 1.4 mBq l -1 for 210 Po and between 0.5 and 0.7 mBq l -1 for 210 Pb (Mamish et. al., 2015).…”

“…Over decade, the activity concentration and concentration factors (CFs) of 210 Po and 210 Pb in some marine organisms such as algae, mollusk, fish and jellyfish have been reported (Othman et al, 1994;Al-Masri et al, 2000;Al-Masri et al, 2002;Al-Masri et al, 2003;Ammar et al, 2009;Mamish et al, 2015). However, to our knowledge, there is no data reported for radioactivity in zooplankton for the Syrian coastal waters, and the main objective of this work was to acquire baseline data on 210 Po and 210 Pb activity concentrations for this area (Eastern Mediterranean Sea).…”

First Record of Porpita porpita LINNAEUS, 1758 (Cnidaria, Hydrozoa) on the Syrian Coast of the Eastern Mediterranean Sea

“…The Syrian coastal waters (eastern Mediterranean Sea) are affected significantly by alien jellyfish of the following species Rhopilema nomadica, Phyllorhiza punctata, Aequorea globosa, Cassiopea andromeda, and Marivagia stellate. They have been recently recorded, and they are mostly of Indo-Pacific and Red Sea origin, introduced through the Suez Canal ( [24], [9], [25], [26], [27]). Here, we describe the first record of another alien jellyfish Porpita porpita Linnaeus, 1758 off the Syrian coast.…”

First record of the new alien sea jelly species Marivagia stellata Galil and Gershwin, 2010 off the Syrian coast

“…The list of the new alien sea jelly species recorded recently in the Syrian costal water (eastern Mediterranean Sea) is increasing. Phyllorhiza punctata von Lendenfeld, 1884, Aequorea globosa Eschscholtz, 1829, Cassiopea andromeda Forsskål, 1775, and Rhopilema nomadica Galil, 1990 have been recently recorded and they are mostly of Indo-Pacific and Red Sea origin introduced through the Suez Canal (Ikhtiyar et al 2002;Durgham 2011;Mamish et al 2012;Siokou et al 2013;Mamish et al 2015).…”