Ma trawler amene akhala asakupha nsomba kwa miyezi yoposera 6 , amalandidwa chiphaso koteronso onse amene samapereka ndondomeko yakuchuluka kwa nsomba zimene amapha pa tsiku kunthambi ya usodzi kwa miyezi yoposa 5 , sapatsidwanso chiphaso chophera nsomba .