Acorn barnacle
Semibalanus balanoides

8 POINTS
Animalia, Arthropoda, Maxillopoda
Acorn barnacles are filter feeders feeding on small organic materials such as zooplankton and small algae of size 2-3.
Habitats: rocky shore
Shore crab
Carcinus maenas

9 POINTS
Animalia, Arthropoda, Malacostraca
This species is an omnivore and can feed on any food items, including primary producers of size 4 and above.
Habitats: rocky shore & sandy, estuarine
Gallery worm
Capitella capitata

9 POINTS
Animalia, Annelida, Polychaeta
The gallery worm occurs in muddy sand and is tolerant of stressful conditions including pollution. Its food items range from size 3 to 4.
Habitats: rocky & sandy shore, estuarine
Dinoflagellate
Symbiodinium microadriaticum

11 POINTS
Chromalveolata, Dinoflagellata, Dinophyceae
This is a single celled algae which is found free living or in the tissues of species such as corals, sponges and molluscs.
Habitats: rocky shore, pelagic
Sea lettuce
Ulva latuca

6 POINTS
Plantae, Chlorophyta, Ulvophyceae
This green algae is common high on shore in areas near freshwater inputs or where nutrients are high.
Habitats: rocky shore, estuarine
Oarweed
Laminaria digitata

8 POINTS
Chromalveolata, Phaeophyceae
This brown algae is found low on the shore and gets its name from the finger like blades which can be up to 2m long.
Habitats: rocky shore
Diatom
Coscinodiscus radiatus

10 POINTS
Heterokontophyta, Coscinodiscophyceae
Although it only reaches a maximum size of 0.5mm, this diatom is one of the largest diatom species and is an important food source for small and juvenile crustaceans.
Habitats: rocky shore, open water
Tufted sea moss
Cladophora rupestris

6 POINTS
Plantae, Ulvophyceae
The tufted sea moss is a species of filamentous green algae, commonly eaten some parts of the world, including Laos.
Habitats: rocky shore
Bladder wrack
Fucus vesiculosus

5 POINTS
Chromalveolata, Heterokontophyta, Phaeophyceae
This seaweed is one of the most common algae in the UK. This algae provides shelter for smaller animals.
Habitats: rocky shore