Hello Foldscope Community, With my Marine Ecology class we’ve been to Point Carmel, which was so beautiful and it got a lot to explore!
The intertidal zone is the area where land and sea meet. It is covered in water during high tide and is out of the water when it is low tide. Through this fact species who live there have to be adapted to changing environmental conditions. The intertidal system is divided into three different zones: the lower, the middle and the higher zone. Organisms which live in the upper zone have to stand harsh extremes. This zone will be dry for a long amount of time, so the organisms have to stand heat, when they are out of the water, as well as cold when they’re in it. Based on the different environmental conditions you will find different species in the three zones, which are able to stand the different conditions.
In the intertidal at Point Carmel there are barnacles and mussels together in one zone competing for space.
In the lower intertidal zone, different coral and anemone species as well as urchins reside.
Likewise, in the lower zone, different chitons species can be found.
In the lower to upper zone many different barnacle species are present. It depends on the zones which species can be found. Species that I saw were: Tetraclita (Pink Barnacle), Anthropleuro (Anemones), Mytilus (California Mussle), Pollicipes (Goose Barnacle), Pisaster(Ochre Star), Katharina tunicate (Black Katy Chiton) The rocks in the intertidal are covered with different seaweeds. There are red, brown and green seaweed species. I tried to look at a green alga, to be precise: Ulva. And that’s what I got:
Since this didn’t turn out so good, I tried it again at home with normal grass and I think I was more successful in preparing this sample, since I got a pretty good picture:
Keep exploring, Freya
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