"EcoLexicon:epilimnion_"^^ . . _:b1217605 . "ENVO:00002131"^^ . "epilimnion"^^ . _:b1217604 . _:b1217605 . "Wikipedia:Epilimnion"^^ . _:b1217604 . _:b1217605 . _:b1217604 . _:b1217605 . "The top-most layer in a thermally stratified lake, occurring above the deeper hypolimnion. It is warmer and typically has a higher pH and dissolved oxygen concentration than the hypolimnion."^^ . . _:b1217604 . "ENVO"^^ .