Recruitment to the reef
 
 

drawing of sea-hare spawn mass
The most interesting possibility regarding the different colours in the spawn mass is possibly the last, highlighted here in orange. It shows at the very least that you were paying attention when reading about sea-hare reproduction.


The spawn was fresh.

The sea hare that laid the top-most spawn had been eating green seaweeds.

Two or more different sea hares may have been involved in the laying.

The sea hare that laid the spawn first ate red seaweeds, then switched to green seaweeds a few days before depositing the mass.

 
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