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When the snails have laid their eggs, the pots are put in a nursery where the eggs will hatch. The young snails are kept in the nursery for about 6 weeks, and then moved to a separate pen, as young snails do best if kept with other snails of similar size. Eight hours of daylight is optimal for young snails.
The eggs hatch in about six days and the veliger larvae are planktonic for up to six months before settling on the shallow seabed at a shell-length of about 1 mm (0.04 in). [2] In eastern Canada these juvenile snails have been recorded at a density of 1500 per square meter. [3]
Once laid, the eggs take approximately two weeks to hatch, during which time the bright pink or orange coloration of the eggs fades. [23] First direct evidence (of all animals), that proteinase inhibitor from eggs of Pomacea canaliculata interacts as trypsin inhibitor with protease of potential predators, has been reported in 2010. [24]
The eggs hatch after 8–21 days. The newly emerged neonate will consume its own shell and that of its siblings. The snail reaches adult size in about six months, after which growth slows, but does not cease until death. Life expectancy is 3–5 years in the wild and 5–6 years in captivity, but the snails can live for up to 10 years. [25]
These land snails have opercula, which helps identify them as "winkles gone ashore", in other words, snails within the clade Littorinimorpha and the informal group Architaenioglossa. Members of the snail family Pulmonata , which includes carboniferous land sails and some freshwater snails of the order Basommatophora , are protandrous ...
The snail takes 30–40 days to hatch and is then considered young (before sexual maturity). Sexual maturity begins between 4 and 16 months after hatching. The snail is relatively fast moving at about 8 mm/s. [3] The snail has a light grey or brown body, with its lower tentacles being long and almost touching the ground.
[31] [32] About 10 days after fertilisation, the snail lays a batch of on average 50 spherical, pearly-white eggs into crevices in the topsoil, or sheltered under stones. [30] In a year it may lay approximately six batches of eggs. [33] The size of the egg is 3 mm. [30] After snails hatch from the egg, they mature in one or more years.
Usually they lay 20-50 eggs in rotting wood or below decaying leaves. Eggs are white and flattened, measure about 1 mm and hatch after 10–30 days. These gastropods reach their maturity only in the second or third season and can live 2–3 years. [3] Unlike many terrestrial snails they do not have a sex dart. [4]