This is a example of a lake called Dayang bunting lake in my home country of Malaysia. It’s like a lake in an island surrounded by water. The origin is like a limestone place collapsed and rainfall collected creating a humongous lake. The surroundings are very high and unlikely to flood over. And there’s like fish in the lake. How did the fish get in there. With no input of water into the lake
In: Biology
Some fish eggs can survive being eaten by birds, and if the bird poops the eggs out while flying over water they can hatch there. Also occasionally strong storms can suck small debris or animals up from oceans, rivers or lakes and rain them down below. If the limestone contains an underwater cave system fish may have accessed the lake from there. It’s possible for one body of water to be split into many isolated bodies of water over the course of hundreds of thousands of years as geographical changes are caused by erosion. There are many possible ways for fish to spread around.
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