Gadzira shanduro yakaoma zvikuru yemutsara uyu Dzimwe nguva'' Daphnia'inogona kushandiswa mune dzimwe nzvimbo kuedza migumisiro yehupfu pane imwe nzvimbo yezvisikwa.
Chokwadika, shanduro yakaoma zvikuru yemutsara wacho ndeyokuti "Dzimwe nguva 'Daphnia' ingashandiswa mumamiriro ezvinhu akati kuti kuedza migumisiro yehupfu pane imwe nzvimbo yezvisikwa, izvo zvinoita kuti ive' chiratidzo chechimiro, chinonyanya kubatsira nemhaka youpenyu hwayo hupfupi uye mano okubereka".