Studies on the lakes of Fraser Island, Queensland

Abstract

Information is presented on the plankton, littoral invertebrates and fish of a series of dilute, acidic waters (mainly lakes) located on a large island consisting entirely of deep siliceous sand. Some data on the physicochemical aspects and morphology of the lakes are also recorded.

Fish discussed include Melanotaenia sp. nov., Hypseleotris klunzingeri and Rhadinocentrus ornatus. Terrestrial insects and pollen constitute major foods for the latter.

Notonectids and corixids were not found in association with fish which may outcompete these hemipterans for food.