|
Abalone are
molluscs - Gastropods, Greek for "Stomach Foot". The
big meaty bit is the foot, with 2 extra bits. The lip colour gives
away the species - in Victoria we get Black lip and Green lip. The
black lip is the most common, from Perth to Coffs Harbour. Green
lip are much patchier between Perth and Wilsons Prom.
They reproduce
by mass release of eggs and sperm, and if fertilization is successful,
you get a "viliger" - a tiny snail with two propellers.
They swim about for 10 - 12 days, and then they attach to a substrate
- often pink coralline algae - the means by which they settle has
caused great debate in amongst marine ecologists - the jury is still
out on this one.
Abalone growth
varies, roughly at about 2 mm per month and take 6 - 10 years for
individuals to reach maturity.
You tend to
find them in rocky reefs, and their main predators are sting rays
- bottom feeders with big teeth.
Victoria is
a huge supplier of abalone to the world market - and is one of the
few truly sustainable wild fisheries in the world (at the moment!).
In 2002/02 Victoria
fished 1,383 tonnes of black lip abalone (about $62m). Some estimate
the illegal trade about the same.
Watch out for
smuggling abalone in bra's
|