Deprecated: Joomla\Input\Input implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /home/darse/www/v1/libraries/vendor/joomla/input/src/Input.php on line 41

Deprecated: Return type of Joomla\Input\Input::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/darse/www/v1/libraries/vendor/joomla/input/src/Input.php on line 170

Deprecated: Joomla\CMS\Input\Input implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /home/darse/www/v1/libraries/src/Input/Input.php on line 31

Deprecated: Joomla\CMS\Input\Cookie implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /home/darse/www/v1/libraries/src/Input/Cookie.php on line 21

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La Darse - Le phytoplancton

Le phytoplancton

 

Le phytoplancton est le premier maillon de la chaîne alimentaire marine. Il joue un rôle considérable dans les échanges de gaz carbonique (CO2) entre l’océan et l’atmosphère. Ceci est dû simplement au fait que les organismes phytoplanctoniques réalisent, de manière similaire aux végétaux terrestres, la photosynthèse, processus qui, pour produire la matière organique nécessaire aux échelons supérieurs de la chaîne alimentaire océanique, consomme du CO2 et produit de l’oxygène. Si l’océan était dénué de ce phytoplancton, l’atmosphère contiendrait presque deux fois plus de gaz carbonique.

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