Linear Discriminant Analysis (LDA) based on the 13 selected parasites as biological markers of the Mediterranean samples (present study) versus the Atlantic ones (data from [27, 28]). Symbols represent mean values per area; each number represents single examined fish from each area: Star and (1): North-West (NW); Rectangle and (2): Central North (CN); Oval and (3): Central South (CS); Diamond and (4): Eastern Tropical (ET); hexagon and (5): Tropical Equatorial (TEQ); Square and (6): Central Tyrrhenian Sea (CTS); Triangle and (7): South Tyrrhenian Sea (STS); Circle and (8): Ionian Sea (IOS).