Abstract
The Aquatic Species Invasiveness Screening Kit (AS-ISK) has been used in order to exhibit the factors increasing the invasiveness of Pufferfishes on the Muğla coast. Basic Risk Assessment (BRA) scores were calculated as 28.0 (Lagocephalus guentheri), 31.0 (Torguigener flavimaculasus), 33.0 (Lagocephalus suezensis), 38.0 (Lagocephalus spadiceus) and 40.0 (Lagocephalus sceleratus) and these scores were indicated a high risk of invasiveness for the species. The factors increasing overall AS-ISK scores were; high climate match, tolerance of a wide range of environmental conditions, flexibility in utilizing food resources, high fecundity, small size at maturity, high reproductive effort, reliable data about parasite transmission and high invasiveness potential elsewhere while factors decreasing scores were; no hybridization with native fish, and no parental care. This information is expected to allow managers and agencies that are responsible for risk assessment and management of lessepsian/invasive species to perform a better decision-making.
Highlights
Migration of biota from Red Sea to Mediterranean waters via Suez Canal was named Lessepsian migration (Por, 1978); it is ongoing with both the positive and the negative effects (Farrag et al, 2016)
When we look at the use of Aquatic Species Invasiveness Screening Kit (AS-ISK) for invasive marine fishes in the Mediterranean, only three attempts (Uyan et al, 2016; Bilge et al, 2017; Filiz et al, 2017b) have been made for marine Lessepsian fish species
Main factors increasing overall AS-ISK scores of pufferfishes were their tolerance of a wide range of environmental conditions, high invasiveness potential elsewhere, and high climate match
Summary
Migration of biota from Red Sea to Mediterranean waters via Suez Canal was named Lessepsian migration (Por, 1978); it is ongoing with both the positive and the negative effects (Farrag et al, 2016). The application of species-risk analysis was on potentially invasive freshwater fish (Copp et al, 2005) and is known by the abbreviation FISK (Fish Invasiveness Scoring Kit) This tool has been replaced by a generic decision-support tool for screening all plants and animals in marine, brackish and fresh waters: The Aquatic Species Invasiveness Screening Kit (AS-ISK: Copp et al, 2016) that has been developed to incorporate the ‘minimum requirements’ (Roy et al, 2014) for the assessment of species with regard to the recent EU Regulation on the prevention and management of the introduction and spread of invasive alien species (European Commission, 2014). Risk scanning tools have a wide range of use and application strategies These systems can be useful in distinguishing between a number of potential invasive and non-invasive alien species with a fast and efficient way (Baker et al, 2007). Risk scans make initial assessments of the species studied and decide whether to conduct further risk analysis and management actions (Gordon et al, 2008)
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