4.2. Profitability of household economic activities
4.2.1. Net incomes
Annual incomes per household (Table 5) are found to be 1.8times higher on average for WA-MPA households than for REM-MPA households, at respectively 19,812 US$ and 11,418 US$. Onecharacteristic of the overall data set (considering the 123 house-holds) is a relatively high percentage of households (6.5%) whoseincome statements show net losses. This phenomenon is behindthe extensive variability and broad distribution of annual nethousehold income values among WA-MPA households, but evenmore so among REM-MPA households. Although such variability isobserved in both samples, the between-means difference is foundto be significant (Table 5). This difference is illustrated mainly by thefact that 26% of WA-MPA households have an annual net income ofmore than 22,500 US$, while only 10% of REM-MPA households postincomes up to this level. The average income differential betweenWA-MPA households and REM-MPA households is due essentiallyto fishing activity incomes: 18,735 US$ on average among WA-MPAhouseholds vs. 10,730 US$ among REM-MPA households. There isalso a significant difference between mean net incomes providedby fish processing and marketing (872 US$ for WA-MPA householdsvs. 186 US$ for REM-MPA households).