Once invasive marine species have been introduced and have established themselves, it is very costly and difficult (sometime impossible) to remove them (Hewitt et al. 2009). Due to this, it is important for invasive marine species to be detected earlier so that eradication is more successful. Thus, monitoring both ports and coral reefs often is critical for being able to detect invasive species because most are introduced in ports, which are in close accessibility to coral reefs (Pyšek and David, 2010). Effective baseline surveys need to be conducted to establish how many introduced species there are, so that any additions to the ecosystem can be detected, and eradication techniques can be initiated before it is too late (Delaney et. al. 2008).