Table 5: Demographic characteristics and their perceptions regarding environmental education. Significant differences were tested with independent samples Chi-square test.

Demographic/Social Characteristics Frequency of ocurrence (%) In your opinion what is the current state of Cape Verde's marine ecosystems? In your opinion what is the negative impact of diving in the Cape Verde’s marine ecosystem? Will you recommend a diving trip to Sal island to your friends and family?
Nationality
Portuguese 70 χ2 = 2.1137,p-value = 0.3475 χ2 = 5.0181, p-value = 0.1705 χ2 = 4.6556, p-value = 0.09751
Others 30
Gender
Male 69 χ2 = 0.81191, p-value = 0.6663 χ2 = 13.444, p-value = 0.003768 χ2 = 3.6623, p-value = 0.1602
Female 31
Age
less 40 years 53 χ2 = 1.5424, p-value = 0.4625 χ2 = 2.83, p-value = 0.4186 χ2 = 0.71195, p-value = 0.3988
more 40 years 47
Education
<12 years 15 χ2 = 0.66965, p-value = 0.7155 χ2 = 0.74487, p-value = 0.8626 χ2 = 0.16778, p-value = 0.9195
>12 years 85