where K- kg/fisher day. good weather. bd-bad weather norma weather and A each sampled fisher's normalized chance (probability) of the catch being good. bad or normal on any given fisher day For species groups that are only occasionally caught. Fs respon- dents were asked to directly report the average catch of each species group per fisher day in a unit familiar to them, as well as how fre- quently they caught them. We converted all units to kilograms. Fishers generally reported that most occasionally caught species groups were targeted seasonally or during the spring tide. and we adjusted average annual fisher days for these species groups accordingly. For both regularly and occasionally caught species groups. average annual catch for each respondent was then product of CPUE and fisher days per year In addition to each fisher type (fisher gleaner or fisher-gleaner exhibiting varying trends in regards to target species, initial obser- differences vation of the FS statistics discussed above also revealed in catch and effort for species groups depending on the respon- dent's village habitat (island, coastal or mangrove) (see Table s.3 in information for a breakdown of our sam- the online supplementary Moreover,only a portion ple partitioned by habitat and fisher type). surveyed reported targeting each species group. of all respondents Thus, to estimate total annual catch for Velondriake. we extrapo- for each annual catch m d fisher type- and habitat-specific species group to the estimated number of each fisher type targeting each species group in each habitat (EFsh), rather than to the total estimated number of each fisher type. EFsh was calculated as