a problem for them they survive. jennifer herself describes further negative effects. the high amount of fertilizer used in agricultural leads to nutrients getting into the oceans via groundwater rivers. this causes phytoplankton blooms. tiny algae which form huge carpets as can be seen from space. this bench to pull fodder produces all the more zooplankton. it's made up of microscopically small animals and fish larvae. this is what jellyfish feed on allowing them to reproduce in great numbers this is causing you trophic conditions with lots of nutrients in the water it leads to low oxygen levels and. jellyfish are very tolerant of