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Ascophyllum nodosum is an autotroph, meaning that it makes its own food by photosynthesis, like other plants and algae. The air bladders on A. nodosum serve as a flotation device, which allows sunlight to reach the plant better, aiding photosynthesis. [6] Epiphytic red algae on knotted wrack at Roscoff, France
Pelvetia canaliculata, the channelled wrack, [2] is a very common brown alga (Phaeophyceae) found on the rocks of the upper shores of Europe. It is the only species remaining in the monotypic genus Pelvetia .
Fucus cottonii, also known as moss wrack, is a species of brown algae that grows in low energy salt-marsh environments on Atlantic and Pacific coasts. The algae is small in comparison to other members of the Fucus genus and lacks the bladders common in other species, such as Fucus vesiculosus (bladder wrack).
The disadvantage of using phosphates is that they remain in wastewater and eventually make their way to a natural body of water. [1] While phosphates are low toxicity, they instead cause nutrient pollution and feed the algae. This leads to eutrophication and harmful algal bloom. [1]
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Advent and Christmas come with many different traditions, including those of the culinary variety. Here's a look at three different food customs from around the world.