The Water Spider (Argyroneta aquatica) is a arachnid that is between 10-15mm long.
Our lakes have a big population of water spiders. These creatures make a bubble nest underwater. They breathe by carrying an air bubble down below the surface. They feed on other tiny creatures such as Phantom Midge Larvae.
Canterbury's water spiders are the subject of international research.
Water spiders are about 20mm long.
Food chain Position in food chain: Secondary consumer (carnivore) They eat Phantom Midge Larvae, water mites, mayfly nymphs They are eaten by fish, frogs
The adults make a bubble using their silk. When the eggs are laid they develop in this nest. The young spiders hatch out into the water.