One of the common but breathtaking sights in the Mediterranean is that of the huge shoals of Damselfish. (Chromis chromis). They can be found down to depths of about 20 metres, but tend to stay in the vicinity of the large shallow rocks. The male and female are almost indistinguishable and the female lays her eggs, which she attaches to the sheltered side of rocks. Once these eggs are laid she will guard the hoard until they hatch. They are very aggressive towards any fish that strays too close.
It is sometimes hard to watch as marauding shoals of wrasse find the egg stashes and attack in a feeding frenzy. The female darts around trying to fend off the attackers but usually to no avail.
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