Resembling a dwarf Fucus, and even behaving like Fucus (if one were to
believe that algae can behave in specific manners at all), Pelvetiopsis
grows mostly atop of rocks in the upper intertidal zone. One way to
distinguish these two from each other, is to look for a midrib. Fucus has a
midrib and Pelvetiopsis lacks the midrib. Also, believe it or not, if you
squeeze the receptacles (swollen tips) of Fucus, an ooze will come out.
This ooze undoubtedly contains Fucus eggs which if you have
microscopic vision, you can see that the eggs are composed of 8, yes count them 8
functional eggs. Pelvetiopsis on the other foot, only has 1 functional egg

Pelvetia compressa (now Silvetia compressa) is a common rocky intertidal
brown alga on the west coast of North America ranging from Coos Bay,
Oregon to lower California (Ensenada.)

Otherwise known as the Bullwhip Kelp, Nereocystis is one of the giant kelps
that make the great kelp forests, where sea otters and other critters live.
Washed up on the beach they may look like dismembered tentacles of
mythic sea creatures, or horrendously huge pieces of spaghetti. They have
been used to weave baskets and also make great musical instruments.

Porphyra nereocystis is epiphytic (real close neighbor to) on the Bullwhip Kelp,
genus name Nereocystis. Porphyra as most know it, is commonly called nori. If
you eat sushi, then you have probably seen Porphyra. It’s the seaweed that
your uncooked fish is wrapped in at the sushi bars.
Porphyra, commonly know as nori, is the most widely consumed seaweed in
the world! It's commonly found in Asian food, especially Japanese food, which
has lead to the huge nori industry in Japan. With a very interesting
heteromorphic life history, Porphyra has just everything you would want in an
alga! And they're great to eat!

The Gooseneck Barnacle (Pollicipes polymerus) is made up of two distinct parts: (1) the chalky gray calcareous plates of varying sizes which enclose most of the viscera and appendages and (2)
the tough leathery stalk or neck which is brown or red and contains the gonads and adhesive gland.

Gooseneck barnacles feed on amphipods and other creatures up to the size of a house fly. The size of the food eaten by the gooseneck barnacle is larger than that collected by acorn
barnacles. To feed, the gooseneck barnacle spreads its cirri to form a net and instead of facing the incoming waves they take advantage of the water running off the rocks or the down-rushing water. All organisms in a particular area will be oriented the same way. When sufficient food has accumulated on the cirri, they withdraw the catch and transfer the food to the mouth parts.
They are found on rocky cliffs exposed to the open Pacific coast. They are restricted to
rocks sheltered from direct sunlight and are fairly restricted to the upper 2/3 of the midintertidal zone.