Marine biology for the diver: what you should know

Every outstanding diver is at heart a taster of marine biology. Understanding deepens enjoyment and strengthens protection.

Marine food chains

The sea works as a hierarchical system: plankton feeds small fish that feed larger ones that feed still larger ones. Any disruption at any level is reflected on the whole.

Wonderful adaptations

Camouflage
Among the most creative mechanisms of evolution. Animals that match their environment completely live longer and hunt more. The octopus, squid, and leaf fish are all amazing examples.

Biological light
In the depths of the sea where sunlight does not reach, creatures produce their own light using biochemical reactions.

Marine reproduction

Many fish release their eggs in the water and leave them to fate. Others, such as the shark, give birth to live young. Turtles return to the beach of their birth after tens of years to lay their eggs.

Marine migrations

The blue whale migrates thousands of kilometers between feeding and breeding. Small fish migrate in oceanic swirls called eddy currents.

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The sea is an open university. Every creature in it is a teacher waiting for someone to listen with open eyes.