Page 134 - 2023 eMag Final Draft
P. 134

Polyp Power


                                                                                                                                                                                    One  might  assume  that  such  magnificent
                                                                                                                                                                                    buildings were shaped by an underwater
                                                                                                                                                                                    volcanic eruption, or perhaps moulded by the
                                                                                                                                                                                    crashing tides of the ocean. But corals aren't a
                                                                                                                                                                                    type of geological formation; they're actually

                                                                                                                                                                                    living organisms! The motley structures that
                                                                                                                                                                                    form our reefs are the grand exoskeletons
                                                                                                                                                                                    built by minuscule, anemone-like creatures
           Cities of                                                                                                                                                                known as coral polyps. These polyps are

                                                                                                                                                                                    colonial, which means that they aggregate
                                                                                                                                                                                    and live together in a tight-knit community.
                                                                                                                                                                                    They each excrete a hard calcium carbonate
                                                                                                                                                                                    shell at their base for protection, which, over
              The Sea                                                                                                                                                               apartment-like superstructure characteristic
                                                                                                                                                                                    thousands of years, eventually forms the


                                                                                                                                                                                    of corals.


                                                                                                                                                                                    Curiously, all polyps in a colony are
                                                                                                                                                                                    genetically identical, experiencing genetic
                                                                                                                                                                                    variation only during spawning season.
                                                                                                                                                                                    During this period, colonies expel gametes
                                                                                                                                                                                    that combine to form free-swimming larvae
                                                                                                                                                                                    known as planulae that are free to explore
                                                             Sea Life Sanctuary                                                    From striped shrimp cleaning                     the world, searching for a suitable location
           Written by Lee Jun Koi Sr1ScC                                                                                           the crevices to majestic turtles                 to start their sessile adult lifestyle.
                                                             Congratulations! You've discovered the                                gliding above them, all sorts of
                                                             submerged city of Atlantis! Well, the                                 creatures inhabit these reefs.                   Polyps  hunt  by  protracting  their  tentacles
           You've probably spent many days playing  fishy form of it anyway. These colourful                                       The corals' skeletal framework                   outward, capturing microscopic plankton
           at your local beach. Maybe near your  corals look straight out of an architect's                                        offers a safe haven for small fish               such as copepods, krill, and fish larvae.
           hometown or at a nearby getaway from  sketchbook. With designs ranging from                                             and mollusks, providing shelter                  To supplement this, they come equipped
           the hustle and bustle of the city. Malaysia  precariously stacked tables to giant bulbous                               from predators. The abundance                    with stinging cells known as nematocysts,

           is known for its pristine coastlines after all!  brains, they form the undersea cityscape                               of algae also serves as a bountiful              which explode on contact to deliver a
           But if you were to venture further asea, the  known as the coral reefs.                                                 source of nutrients for many of                  venom-infused needle into the unfortunate
           plain patches of sand would give way to vast                                                                            the reef's inhabitants. Imagine it               recipient, immobilising the prey as they're
           outcrops of living rock, their kaleidoscopic  Found near clear coastal waters, the reefs                                as a rent-free apartment complex                 dragged into the maw of the tiny yet deadly
           hues  gently  glimmering  underwater.  thrive as a vital ecosystem that a myriad of                                     where you could feast like a king                polyp.
           Teeming with life, schools of fish weave  creatures call home. In fact, coral reefs house                               every day, and you could see why
           through the stony structures that are home  a staggering 25% of all marine life , their                                 this  combination  of  safety  and
                                                                                                    [1]
           to the architects of the sea—the corals.          inhabitants as vibrant as their surroundings.                         sustenance thrives with life.

       134                                                                                                                                                                                                                           135
   129   130   131   132   133   134   135   136   137   138   139