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Ragworm Reproductive Cycle
Автор: Phil Heslop
Загружено: 2013-03-05
Просмотров: 3793
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Spawning is triggered by a rise in temperature during spring. Females brood eggs within their bodies. As the eggs develop, the female's body becomes brittle and ultimately ruptures, releasing the eggs into the burrow. Males are drawn to the burrow by pheromones and discharge their sperm around the burrow entrance. The female draws this sperm down into the burrow using water currents where they fertilise the eggs. After spawning, both males and female ragworms die.
During this period, they change from a reddish brown, to an iridescent green colour
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