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Coral Reef Detective Introduction to Reef Check Surveys Reef IQ

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Each team should lay out their coral reef transects or get ready to survey the ... It is important to note down the substrate code of each coral reef photocard. ... – PowerPoint PPT presentation

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Title: Coral Reef Detective Introduction to Reef Check Surveys Reef IQ


1
Coral Reef Detective Introduction to Reef
Check SurveysReef IQ
2
Coral Reef Detective Overview
  • In these activities you will become a coral reef
    detective to investigate the health of coral
    reefs!
  • You will learn how to use codes and fill in your
    Coral Reef Detective Notepads to work out how
    healthy your reef is and whether there might be
    any dangers affecting it.

3
What do you need to do to become a coral reef
detective?
  • You will be undertaking some of the following
    activities
  • Impact Investigation
  • Coral Reef Health Investigation
  • Reef Check Investigation
  • What materials will you need for your
    investigations?
  • A coral reef!
  • Coral Reef Detective Notepads
  • Measuring tape

4
How to set up your coral reefs
Transect
1
2
3
4
Replicates
5
How to carry out your investigations
  • Each team should lay out their coral reef
    transects or get ready to survey the already
    prepared reef.
  • You should carry out your investigations or
    surveys filling in the Coral Reef Detective
    Notepads as you go along.
  • It is important to note down the substrate code
    of each coral reef photocard. If there is no code
    you must identify the substrate.

6
A Reef Check Volunteer Scientist hard at work!
  • Your investigations are similar to what a Reef
    Check volunteer does underwater.
  • Can you think about the differences between doing
    your investigations underwater and on land?

7
Reef Check substrate codes
HC Hard Coral SC Soft Coral
SD Sand SP Sponge
RC Rock SI Silt
OT Other NIA Nutrient Indicator Algae
RB Rubble RKC Recently Killed Coral
HCB Hard Coral Bleached
8
Identifying different substrateHC and SC
Hard Coral can take many forms including boulder,
branching, plate or cabbage like shapes.
Soft Coral look more like underwater flowers and
sway in the current.
9
Identifying different substrateNIA and SP
NIA is a type of algae that can be green, red,
orange or brown and is fleshy looking.
Sponges come in many different sizes and colours
but always have a hole to take in water and one
to expel it.
10
Identifying different substrateRKC and HCB
RKC is recently killed coral that is white and
dead, but has not yet turned into rock or rubble.
HCB is bleached coral that is not yet dead, but
is white and still has tissue. These two (RKC and
HCB) can be quite hard to tell apart.
11
Identifying different substrateOT, RB and SD
OT includes any other creature or substrate you
come across that is not covered by other codes.
RB is when the coral is dead and has broken up
into rubble. SD is sand!
12
Identifying different substrateRC and SI
RC- once the coral has died it eventually turns
into rock and is no longer white.
SI silt settles on the coral smothering it.
Silt is finer than sand and floats if thrown into
the air rather than falls to the ground as sand
does.
13
What are you looking for in your investigations?
  • You will be investigating your reef to see how
    healthy it is this is usually measured by how
    much hard coral cover there is, and how much dead
    coral or algae there is, among other things.
  • You will also be investigating to see if your
    reef is being impacted by any of the threats to
    coral reefs you have learned about.

14
Clues
  • How much hard coral cover is there compared to
    sand and rubble?
  • How much Nutrient Indicator Algae is there and
    what does this tell you?
  • How much Recently Killed Coral is there and what
    does this tell you?
  • Can you find any dangerous marine creatures in
    the photos?
  • Is there much silt on your reef? What might this
    say?
  • Look carefully at the coral, is it healthy or
    stressed?

15
Lets begin investigating!
Is this you in the future?
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