Trade and human assisted movement accounts for international spread. Golden apple snail can spread rapidly in association with running water such as in irrigation and drainage channels. Natural or deliberate release into the environment has enabled the snail to establish and spread throughout eastern Asia. Golden apple snail was introduced into Asia for aquaculture and the aquarium trade. Golden apple snail is native to South America. Golden apple snail feeds on a wide variety of grasses and wetland plants. The wide host range of the golden apple snail allows multiple generations to develop and mature when free water is available. Egg masses lighten in colour when about to hatch.Īfter hatching juvenile snails fall or crawl into the water. Female snails emerge from the water and lay their egg masses on vegetation or other structures above the water line.Įgg masses are bright pink and contain 200-300 eggs (Figure 3). Mating is not restricted by time of day or season of the year. Mating occurs where water is readily available. Colours are commonly golden, yellow or brown (Figure 2). Shell colour and banding of golden apple snails is extremely variable and not diagnostic. VDOMDHTMLtml> iPhone XR Color Flood Hypothesis - YouTube Im reacting to the iPhone XR Color Flood commercial and making a hypothesis on it. The operculum is carried on the back of the body behind the shell and is pulled inwards to seal the shell when the snail withdraws inside (Figure 1). They have a distinct flat lid called an operculum which is used to close the mouth of the shell. Mature golden apple snails are 3 to 8 cm in diameter. Snails dig deep into the soil as conditions dry out and resurface after rice bays are flooded.Īdult golden apple snails cut off rice seedlings just above ground level and eat the stems and leaves. Ability to breathe in air allows the snail to survive between irrigation cycles. Golden apple snail has both gills and an air breathing organ. Email with a clear photo and your contact detailsĪ full list of notifiable plant pests and diseases can be found in Schedule 2 of the NSW Biosecurity Act 2015.
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