Several zoeal moults are followed by the final larval stage, the megalopa.
2.
Eggs hatch into a zoeal stage, which is followed by a second zoea and then a megalopa stage before adulthood.
3.
"Z . adamsii " passes through four zoeal phases, and one megalopa phase before reaching the mature condition.
4.
This last moult, from megalopa to juvenile, is critical, and it must take place in a habitat that is suitable for the juvenile to survive.
5.
The first developmental stage after hatching is a planktonic larva ( 1 mm ) called the zoea that develops into a postlarva ( megalopa ), and finally a juvenile.
6.
Then, they morph into the megalopa stage and settle to the ocean floor among the phytodetritus; the megalopa stage is the advanced larval stage that the crab develops into before becoming a true adult.
7.
Then, they morph into the megalopa stage and settle to the ocean floor among the phytodetritus; the megalopa stage is the advanced larval stage that the crab develops into before becoming a true adult.
8.
Females produce up to 50, 000 zoea larvae, which develop through four further zoea stages, and one megalopa stage, over the course of 16 25 days . The larvae are planktonic, and can be transported long distances during their development into the benthic adults.
9.
The species shares some Molecular phylogenetic analyses showed that " Galatheacaris abyssalis " had such similar mitochondrial DNA to that of " Eugonatonotus chacei " that the two must be considered conspecific; it is now thought that " Galatheacaris " is the megalopa stage of " Eugonatonotus ".
10.
1 ) Eggs require pure salt water to mature . 2 ) Larvae hatch from the eggs in brackish waters . 3 ) The larvae gradually move from brackish water to fresh water . 4 ) The final stage of the larvae is the megalopa, which is 3-4mm in length . 5 ) The megalopa then develop into small mitten crabs in the freshwater.
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