
Even after our perfect Lamington experience, tiny Heron is definitely my favorite. We’re staying at the University of Queensland’s Heron Island Research Station taking our Coral Reef Ecosystems class— taught by Australia’s leading climate change and coral reef expert, professor Ove Hoegh-Guldberg, another coral researcher, Selina Ward, and Kevin Arrigo, a Stanford oceanographer (and our “faculty sponsor”) with whom I took an Earth Systems class last winter.
Heron Island is a coral cay on the southern tip of the Great Barrier Reef, the largest reef system in the world. At 2300 kilometers long, it’s bigger than the entire country of Italy! The GBR supports about 400 different coral species, 2000 kinds of fish, and 4000 types of mollusks. But much to my surprise, only 33% of the Great Barrier Reef is fully protected— actually a significant amount recently solidified in July 2004. Like Moreton Bay Marine Park, the other 66% of the GBR has been specially zoned to specify where recreational, commercial fishing, and trawling is allowed.
To get to this isolated and remote paradise we drove seven hours in the middle of the night, arriving at the Gladstone dock to catch our ferry early in the morning. The wretched two-hour journey across the ocean was the worst I’ve ever endured— and I grew up on boats. Rolling seas and crashing waves had nearly everyone wet, uncomfortable, and sick. One of our tutors said that in the forty-odd times he’s traveled to Heron, he’s never had a more horrible ride. And the boat crew itself admitted that our particular ferry had never seen such stormy seas!

That afternoon the staff distributed wetsuits and we went snorkeling as a group. Those of us with experience followed one of the tutors all the way to the wreck— a long swim because the water was so choppy. I saw my first sea turtle while snorkeling, and our tutor Josh pointed out a poisonous lionfish with lots of red and white stripes and pointy protrusions. Being in such beautiful blue water was wonderful! But I was so exhausted after such intense physical activity, our sleepless night on the bus, and the uncomfortable ride on the ferry that I went to bed immediately after dinner and didn’t wake up until breakfast at 7 AM.
For the next five days our daily schedule was quite regimented and busy. We attended lectures after breakfast and before and after dinner, and we divided into small groups to complete a different “lab” each day. Some labs took the entire day while others were much shorter. On the first day my group learned about scientific transect methodology. During mid-tide we walked out to the reef flat surrounding the island and counted coral species along varying transects. The wind was so oppressive that even though we were on a beautiful island on the Great Barrier Reef, we were all freezing! That afternoon our tutor Juan Carlos talked to us about transects and then we were free. Unfortunately I suffered a severe migraine the first few days on Heron so I spent my extra time lying down or sleeping.

After a quick afternoon tea we trooped up to Shark Bay, a crystal-clear cove with rays, skates, and sharks skimming the surface. My favorite was the giant shovel-nose ray which is long and tan with a pointed face. I also really liked the smaller eagle and black stingrays and was thrilled to see black and white tip reef sharks swimming underneath us. That night we had a party on the beach!
That afternoon we helped Kevin take phytoplankton samples on a boat for lab number three. We dragged a net through the water at five different sites to collect the plankton. The tow certainly didn’t take much effort so we thoroughly enjoyed the fast ride on the little rubber boat. Back on land we used microscopes to analyze our samples and determine the different kinds of plankton at each site. Looking through the scope at all of these beautiful, complex but miniscule formations was wonderful. We saw foraminifera, dinoflagellates, radiolarians, diatoms, terapods, jellyfish, trichodesmium, sponge spicules, crab and lobster larvae— and noticed that the amount of copepods dropped at the reef crest towards the reef flat because of the millions of damselfish known as the “wall of mouths” that eat them. After lecture that night we sampled from the dock and found a huge bloom of the orange trichodesmium.
Lab number four consisted of measuring reef rubble (dead coral) biodiversity. Luckily the wind had finally died down and our tutor Davey led us on a walk through the reef flat during the morning’s mid-tide to collect some rubble pieces. Just like our snorkel with Ove, having an expert guide to point out the types and structures of coral— not to mention various reef organisms— was incredible. One of the greatest aspects of this Australia program is learning about the environment from those who know it best. Knowing how to identify acropora, pomocentrus, scaridae, labridae, chaetodons, and others is an invaluable gift that I can someday pass on to my own children.
Our final lab involved trooping out to the reef flat again with Selina to break off little pieces of the most prevalent Heron coral, the pointy acropora species. We brought them back to our makeshift laboratory to perform a series of complicated tests using machines such as a spectrometer to measure the amount of chlorophyll within their symbiotic dinoflagellates, or zooxanthellae. Given that I have never set foot in a biology lab I had no idea what was going on, but my mates were very helpful and understanding. Even though this lab was the most difficult for me I still enjoyed the exposure to scientific equipment. And luckily we finished early so I had plenty of time to fill out my housing application for Florence next quarter! I can’t believe that it will be an entirely different adventure.
On the sixth day we listened to a few morning lectures and then took off for an afternoon boat snorkel— definitely a Heron highlight. The little rubber inflatable brought us far out to the reef crest on the other side of the island with the most beautiful corals I have ever seen. They were of many different pastels— pink, purple, blue, yellow, green, and orange— and shapes— foliaceous, encrusting, plate-like, branching, massives, and soft. We could even swim through their gigantic crevasses and dive down to see gorgeous fishes bobbing everywhere.
Unfortunately I spent the rest of the afternoon and evening and the entire next day studying for our exam. We had more than twenty lectures to review so much of my free time during those first few days when I didn’t have a headache was devoted to learning the hefty oceanography, weather patterns, coral and fish biology material. The Heron course with its emphasis on hardcore science is by far the hardest for me, so I had to do a lot of studying. It was worth it though because on the eighth day I did well on the exam.

At 8 AM the next morning more than twenty of us assembled for a SCUBA diving expedition to The Bommie, apparently a very famous site on the Great Barrier Reef. The resort had reserved a dive boat just for us. I learned how to dive at home in Boston this summer, and this was my first in tropical waters. Sadly for me it was what my instructor would have called a “disaster dive.” I had a lot of problems adjusting my weight and fitting my mask properly in the beginning, and wasted so much air that I only lasted 30 minutes underwater.
I spent the latter part of the afternoon relaxing and planning my Targeted Research Project on the beach. Mine is about the effect of wildlife photography, so I’ll put together an assortment of photographs and test them on my Stanford group and hopefully some other researchers at UQ. Most people conducted rushed and hectic coral projects during these last four days on Heron, so I’m very thankful that I had the free time to snorkel, dive, and laze about by the sea. That afternoon, for example, I found a lovely path winding through the pisonia forest to an isolated place called North Beach.
The next morning I decided to improve my diving record so I went out again on the resort’s 8 AM and 11 AM dives with my friend Jenny. Jenny is a very experienced SCUBA diver who grew up in the Philippines, so it was wonderful to have her advising me. The resort also gave us a great discount because we were from the research station. During the first dive at Turtle Gully we saw some absolutely beautiful corals and a tiny pink nudibranch! We went back to The Bommie for our second dive, so I was happy to concentrate on the corals and wildlife I had missed previously. And at the end two dolphins followed our boat jumping at its bow!

That night was another Heron highlight, as we went on a night snorkel! My small group of six was last, just as the full moon rose over the dark, quiet ocean. We each carried little flashlights and somberly followed the tutor leading us out to the wreck, where many enormous loggerheads spend the night safely tucked under its ledges. We spotted eight of them as well as two lionfish. We were all in awe of the gigantic turtles and this night was truly unforgettable.
The next morning Jenny and I tried to go diving, but the eight o’clock was fully booked so Micki and I snorkeled near the resort instead. While snorkeling with Ove during the fish lab my partner Gwen found a blue starfish, Linckia laevigata, and I had been dying to see one ever since. Starfish were my favorite animals growing up and blue is my favorite color, so every time I went snorkeling or diving on Heron I looked everywhere for them! Finally this morning Micki and I spotted not one, but THREE blue starfish! I was beyond ecstatic.

That afternoon was also really exciting as I watched the Red Sox win the World Series all the way from Australia! The staff at the resort was kind enough to set up a large screen in a big room, but only a few people from our group actually went. Although most of them (being Californian) were rooting for the Rockies, we three Bostonians were very happy. I even stayed to watch the post-game coverage, hoping to catch a glimpse of my city.
Afterwards Micki and I went snorkeling again, this time undertaking an ambitious swim to The Bommie from the end of the cement dam near the wreck. When we finally arrived we found a tasseled wobbegong! This is a type of shark with frilly white lips and lots and lots of spots. We also saw a Crown-of-Thorns sea star, which has been responsible for the mass destruction of various South Pacific reefs because its population outbreaks ingest so many coral polyps. And as we swam back we found a big lionfish!
I woke up very early the next morning to watch the sunrise and witness the nocturnal mutton birds fly away from the island. Heron is completely dominated by pisonia grandis forest and supports a vast number of white-capped noddy terns and wedge-tailed shearwaters, or mutton birds. The noddies are beautiful with their white heads that create a grey gradient down their necks to their black bodies, while the muttons are interesting because they mate for life, furiously digging long tunnels in the sand where they place their chicks at the end. The mutton birds fly onto the island at dusk and are very active as the sun goes down, so I fell asleep to their very loud screams and cries (sounding like grumpy babies!) every night. A third bird, the buff-banded rail, stalked the dining hall and ravenously gobbled food off our plates.

Anyway, that morning I also visited my friends Willie and Xavier, who were busy conducting their Targeted Research Project. They observed the homing behavior of chitons, primitive mollusks that live within crevasses of beach rock, leaving only at night to feed. Most of them follow distinct paths and return to their little crevasses by early morning. Xavier thought their homing mechanism is due to magnetism, while Willie was testing their memory. They each pulled four all-nighters in a row and tried to sleep on the beach during the day!
After breakfast my friends Michelle, Chelsea, Alex, and I went snorkeling from the North Beach side of the island, where the reef crest is at least twice as far as the crest on the research station side. But the long swim was definitely worth it, because the colors and formations of coral— not to the mention the fish— were spectacular. We curved all the way along the crest to the harbor, and I spent about an hour before lunch swimming in the calm high tide water at North Beach with sharks and stingrays!