epq presentation
- Created by: emilysouth
- Created on: 27-03-18 14:34
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- does ocean acification effect coral reef biodiversity? the basics
- what is a coral reef?
- Coral
reefs are home to just over 25% of all marine life on the planet
- the variety of life rivals that of the amazon rain forrest!
- coral reefs can be found all around the world
- cold water coral reefs in Norway.
- deep water coral reefs in the mediterranean
- great barrier reef on the coast of Australia
- the largest living land mass on the planet!
- Coral
reefs are home to just over 25% of all marine life on the planet
- what are the different types of coral reefs?
- around the world there are many different types of coral
- fringing reef
- grows seaward directly from shore.
- usually form boarders along the shoreline and surrounding islands.
- barrier reef
- very similar to fringing reefs.
- grow upwards from out of the shore.
- separated from land by an expanse of water.
- why are coral reefs important?
- they hold a large amount of different species, and themselves are living creatures
- ensures that some life will continue even after a catastrophic event.
- the
whole ecosystem and biodiversity depends on the population of coral reefs
globally
- as
long as one coral reef remains alive, they will never die out
- Billions of fertilised eggs drift away carried by the oceans current in which settle and a new coral regrows.
- as
long as one coral reef remains alive, they will never die out
- Coral reefs protect and create land. ‘Coral reefs can dissipate wave energy from storms or tsunamis, reducing damage on adjacent land
- they hold a large amount of different species, and themselves are living creatures
- sceleractinian
- "hard corals" secrete a calcium carbonate skeleton
- these corals need a specific environment to survive!
- What is ocean acidification, and how does it
work?
- Ocean acidification is the term used to describe
the changes in the chemistry of the world’s seas
- changes to the oceans’ pH levels will have
severe consequences for marine life
- increases the acidity but reduces the availability of carbonate ions due to the fact that there is a lack of carbonate ions
- changes to the oceans’ pH levels will have
severe consequences for marine life
- Absorbed carbon dioxide in the sea water forms
carbonic acid, lowering the waters pH level and making it more acidic
- not only increases the acidity but reduces the availability of carbonate ions
- Ocean acidification is the term used to describe
the changes in the chemistry of the world’s seas
- What effect does ocean acidification have on the
biodiversity of the coral reefs?
- It effects mainly the young and reproductive states of the animals and coral
- It can
also effect things such as the metabolism, metamorpho-sis, and their post
settlement growth
- Metabolic suppression from the exposure has been previously reported to occur in a variety of marine invertebrates, including crabs, squid, worm’s pteropods, and amphipods
- how can we manage ocean acidifcation?
- Humans are choosing to burn fuels and allow
these harmful chemicals into our oceans
- the burning of fossil fuels is only increasing!
- Management strategies that protect these natural refugee
from other stresses may help reefs cope with predicated changes in climate
- the reefs can adapt, however over time gradually, they cannot cope with the fast changing climate and conditions!
- Humans are choosing to burn fuels and allow
these harmful chemicals into our oceans
- what is a coral reef?
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