triops
"Reproduction
A typical vernal pool during the wet season
Another vernal pool, this one dried out
Triops longicaudatus displays several reproductive strategies. Individuals may reproduce sexually, but this is rare, as most populations are highly male- or female-biased. Parthenogenesis (development from unfertilized eggs) is the most common reproductive strategy. Some populations, however, consist of hermaphrodites who fertilize each other. It has been noted that different populations display different strategies or combinations of strategies, and may therefore be considered separate species or subspecies in the future.
In females, the eleventh pair of legs is modified into egg sacs, where the eggs are carried for several hours. The eggs are released in batches and have a thick shell and can stand freezing temperatures as well as drought, enabling the population to survive from one season to the next. The eggs have to dry out completely before being submerged in water again in order to successfully hatch; they may remain in a state of diapause for up to 20 years. These eggs may have helped Triops longicaudatus, as well as other notostracans, to survive the natural disasters that may have killed the dinosaurs 65 million years ago.[1][3]"
this is copied from wikipedia. can anyone explain the "eggs have to dry out completely before being submerged in water again in order to successfully hatch"
cause i do not understand the meaning of dry out... is it put them under the sun? :X hope someone can clarify thanks..
Too much of a fish SIAO to quit fish keeping/fishing..
Bookmarks