(larval nutrition from yolk)

oviparous pelagic planktotrophic

oviparous pelagic planktotrophic oviparous pelagic parasitic ▲

This large specimen of Stichodactyla mertensii was releasing great plumes of sperm during a coral mass spawning event after the November full moon in the Solomon Islands. Divers observing the anemone shined their underwater lights on it, which seemed to stimulate the anemone to erupt! Photo: Julian Sprung

Fish Releasing Eggs Sperm Release

Spawning usually begins with male anemones releasing sperm into the water. The sperm exits via the mouth usually, but depending on the species of anemone it may also be released from the tips of tentacles or through pores in the column. The release of sperm is detected by females of the species, and they may release eggs into the water. In some species the eggs are not released, but water-borne sperm fertilize the eggs within the gastric cavities of anemones downstream.

The COMPLETE guide to Aquariums

The COMPLETE guide to Aquariums

The word aquarium originates from the ancient Latin language, aqua meaning water and the suffix rium meaning place or building. Aquariums are beautiful and look good anywhere! Home aquariums are becoming more and more popular, it is a hobby that many people are flocking too and fish shops are on the rise. Fish are generally easy to keep although do they need quite a bit of attention. Puppies and kittens were the typical pet but now fish are becoming more and more frequent in house holds. In recent years fish shops have noticed a great increase in the rise of people wanting to purchase aquariums and fish, the boom has been great for local shops as the fish industry hasnt been such a great industry before now.

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