Bioinvasion or the establishment of non-nativespecies / non-indigenous species/ alien species outsideits native range, has been relatively well documentedin freshwater and terrestrial environments, thoughof late, there are increasing numbers of records frommarine and estuarine ecosystems. This has beenlinked especially with the escalation of maritimetransportation, trade of living organisms, climatechange and coastal developmental activitiesincluding development of maritime canals (Carlton,1996; Winder et al., 2011; Galil et al., 2014; Ojaveeret al., 2018). The impacts recorded in marine habitatsdue to the invasion of non-native species includedisplacement of native species, changes incommunity structure and trophic interactions, foulingof ship’s hulls, clogging of pipes, nutrient cycling,sedimentation as well as impacts on human health(Molnar et al., 2008; Occhipinti-Ambrogi and Galil,2010). Though bioinvasion has been identified as amajor threat to marine biodiversity, there are severallimitations in developing appropriate managementstrategies due to the lack of baseline historic data onbiodiversity and invasions, besides the lesser amountof research in this field (Ojaveer et al., 2018).