rocky shore habitats annie russell. school of marine science and technology
TRANSCRIPT
Rocky Shore Habitats
Rocky Shore Habitats
Annie Russell
School of Marine Science and TechnologySchool of Marine Science and Technology
Aims for today
1. What are the factors that affect the distribution of an organism on the rocky shore?
2. How have the organisms become adapted to the rocky shore?
3. From your observations of the organisms on the rocky shore give specific examples of how the organisms observed have adapted to survive the rocky shore environment.
Marine habitats
Polar oceansPolar
oceans Coral reef
Rocky ShoresRocky Shores Open
oceansOpen
oceans
Deep sea
oceans
Deep sea
oceans
How does all this affect the Rocky shore at cullercoats?
Rocky Shore HabitatRocky Shore Habitat
What are the factors that affect the distribution of
an organism on the rocky shore?
Biotic and Abiotic factorsBiotic and Abiotic factors
The biotic factors are the influences that result from the activities of living organisms in the community eg. competition
Abiotic (physical factors) are the influences of the non-living part of the community e.g.. Climate
Distinguish between Biotic and Abiotic factors.
Abiotic (physical factors) are the influences of the non-living part of the community e.g.. ClimateAbiotic (physical factors) are the influences of the non-living part of the community e.g.. Climate
Abiotic
Abiotic
Desiccation
Aspect
Wave crash
Temperature
Light Gradient
Salinity
Oxygen
The biotic factors are the influences that result from the activities of living organisms in the community eg. competitionThe biotic factors are the influences that result from the activities of living organisms in the community eg. competition
Biotic
Competition
Mates
Food
Space
Light (algae)
Predators
Abiotic factors - Desiccation
Patella vulgata
Cancer pagurus
Actinia equina
Abiotic factors - Temperature
Littorina littorea Semibalanus balanoides
Abiotic factors - Salinity changes
Asterias rubens Carcinus maenas
Ulva that was Enteromorpha
Abiotic factors - Exposure
Abiotic factors
4: Wave Crash
Abiotic factors - Light
Abiotic factors
4: Wave Crash- Oxygen
– cold water holds more oxygen than warm water– most intertidal organisms must respire underwater
- Slope- Aspect
Abiotic factors -
AB
c
Abiotic factors
4: Wave Crash– Space– Mates– Food – Light– Empty shells
(hermit crabs)
Biotic factors - Competition
Abiotic factors
4: Wave Crash- from marine (offshore and intertidal) predators
- from terrestrial predators
Biotic factors - Predation
How does all this affect the Rocky shore at cullercoats?
5
1
Avoid rockpools!
Y
X
1.00 m – X = Y
The Shore Thing
• Monitoring abundance of rocky shore species around the UK as potential indicators of climate change.
• Species search: – Abundant – Frequent – Rare – Not found
Common green algae
Sea lettuce
Gutweed
Cladophora
Common brown algae
Laminaria digitata
Kelp
Laminaria hyperborea
Laminaria saccharina
Common brown algae
Bladder wrack
Saw wrack
Spiral wrack
Common red algae
Irish Moss• Dulse
Coral weed
Common Animals