Fig. 4

The analysis of each of the eight answers according to gender as % percentage in the 522 answered questionnaires. 1: Do you consume fish from lake Trichonis? 2: If yes, which species? 3: How often do you consume fish from the lake? 4: How often do you consume fish in general? 5: If you don’t consume fish from Lake Trichonis, which are the reasons for that? The A–F answers account for: a I can’t find them in the market, b they are not so tasty, c it is difficult to cook them, d it is difficult to prepare them for cooking, e I prefer to eat frozen fish, f Other. 6: In the past, were your parents and grandparents consuming more fish from lake Trichonis? 7: If yes, which species? 8: Those years, how often was the family consuming fish from the lake?