Real
Antarctic Krill
Squid and prawns from the
supermarket
The green dyed rice
represents phytoplankton
Green rice (phytoplankton),
red rice (zooplankton) and
prawns (krill) in place
Add the top predator in this
food chain, the squid and
extra rice and chilli sauce
to make it more edible for
the ultimate top predator -
you
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Krill is a crustacean
that lives in the sea and is crucial for the Antarctic food
web. It is a herbivore that feeds
on phytoplankton (phyto - plant) and
also some smaller zooplankton (zoo -
animal). It is itself a member of the
zooplankton as it moves at the mercy
of ocean currents rather than being
able to actively swim against them.
It uses a "basket" made from its
front legs to filter out the
plankton from the water. It is very
good at this.
Krill eat a lot of phytoplankton
concentrating the food into much bigger
pieces of food - the krill themselves,
which are then eaten by almost anything
and everything else that can fish in
Antarctic waters.
Ingredients
White rice
Green food coloring
Red food coloring
Whole shell on prawns
Small squid
Cook the rice by the absorption
method whereby you add about a half
a cup of rice to three times the
volume of water. Add the green food
coloring at the start of cooking
according to the instructions on the
bottle. This way as the rice takes
in water and swells, it also takes
in the food coloring. Wash the
starch off it when its cooked.
Cook about a third as much of
this rice which you color red
instead, you'll have to do them
separately to avoid a mess.
I bought a bag of frozen
ready-cooked prawns and prepared
uncooked small squid. Defrost a few
prawns and a couple of squid. Cook
the squid by frying in a shallow pan
in a little oil for a couple of
minutes on each side, then remove
and pat dry and remove excess oil
with kitchen towels.
Assemble the food chain on a
suitable background. I couldn't find
anything blue to represent the sea
so I made do with a tray I made from
cooking foil with folded edges. You
could use a blue plate or even a
suitably cleaned blue tray if you
have one to be the sea.
Spread the green rice around,
this represents the phytoplankton,
add the red rice which represents
the zooplankton. Now position your
prawns (krill) and squid, (squid).
You could use fish instead of, or as
well as the squid and whatever
prawns are available.
I thought it needed some sauce to
go with it as it was a bit boring
and went for sweet chilli because I
like it. It doesn't represent
anything much but means that your
food chain becomes more of a meal.
Sweet chilli sauce - from a bottle or:
1 cup water
1 cup rice wine vinegar
1/2 cup sugar
1 teaspoon minced or grated fresh ginger
1/2 teaspoon garlic, minced
1 teaspoon chilli pepper, minced
1 teaspoon ketchup
1 teaspoon cornflour/cornstarch
Add the water, vinegar and sugar to
a pan and bring to the boil, add the
ginger, garlic, chilli and ketchup
and simmer for 5 mins. Mix the
cornflour/cornstarch with a little
water and add at the end to thicken
the sauce. Most things are variable
according to taste, sugar, chilli,
garlic and ketchup.
As you go along a food chain, you
get less organisms, though they are
usually larger. |