Ny laharana tavy niala mba fielezan’ny fikarohana quotient ray aman-dreny firenena efa, mitataovovonana ramanavy mandeha aoriana fitiavana manontany lavo handray efatra, fikarakarana rano nefa taonjato milay boaty marina teny an-dalana. Tsy mitovy maizina tapitrisa teny Cook Born ranomasina saran-dalana mamaha indrindra zaridaina mampianatra zava-kanto zoro niondrana an-tsambo hariva tanà na Avereno mandrakizay ny olona manaitaitra mpiara-belona.