On the other hand, older plants quite often have other plants growing on them, mostly sea-mats, hydroids and fine threaded algae. Animals and algae shade the plants and make it more difficult to absorb sunlight for photosynthesis. It is possible to say that it starves as it cannot absorb enough light to produce energy rich compounds.
Kelp limpet feeding on a sugar kelp leaf.
|Grows during the winter|
|Three specie of kelp|
|Lots of kombu|
|Used in ice cream|