Tag Archives: herbivorous fish

1 Fish, 2 Fish, Red fish, Blue fish

Today was one of the best snorkeling days. We started the day snorkeling on the back reef. We were doing a diversity study and were trying to collect as many species as possible. There were so many different organisms. Immediately, we stumbled across a baby nurse shark hiding in the seagrass. A few minutes later, a spotted eagle ray appeared and swam by us. I have decided that my favorite fish are a porcupine fish and a trunkfish. They both look like they shouldn’t exist and are defying nature. While searching for the different species on the reef, I saw some very large lobsters.

On the back reef, I also finally saw all of the herbivorous fish on my taxon sheet. I finally saw the juvenile Pomacanthus paru French Angelfish and a Juvenile Pomacanthus arcuatus (Grey angelfish). The final fish I saw was a Acanthurus chirurgus (Doctorfish).

At around 10:40, we got back with all of our organisms. While sorting through the all the material, I discovered a baby octopus sliding toward the drain. I quickly scooped him out and placed him in a bucket. When he entered the bucket, I saw him ink a cute little splotch of black ink. We also found some fire worms, brittle stars, and lots of crabs.

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For most of the afternoon, we did data analysis and presentations. But after we finished everything, we went for a quick snorkel before dinner. The water was really rough but it was really fun! We saw a really huge nurse shark! Today, was really fun!

What a Trashy Day!

After breakfast today, the water was very choppy so we could not go out on the reef. Instead, we did our presentations in the morning and learned about Mollusks, Annelids, and crustaceans. Next we went through the mangroves of death which were very un-deathy to get to a patch of back reef. There were a few mosquitos, but they were not huge swarms of biting insects. While on this reef, we were looking for Christmas tree worms and were trying to measure host preference. Unfortunately, there were very few Christmas tree worms on this reef. The current and waves were also very strong. While on the reef, I saw a Caribbean squid and lots of fire coral.

While on the reef, I continued to see lots herbivorous fish. The parrot fish on this reef were also bigger then on the little patch reef off the dock. I saw for the first time the intermediate stage of the Blue tang.

I continued to see Sparisoma Viridi (the stop light parrot fish), Chaetodon Striatus (Banded butterfly fish), Chrysiptera parasema (the yellow tail damsel fish), Stegastes paritus, the Bi-color damsel fish, and Scarus Croicensi (the striped parrot fish, initial and terminal phases). I see the parrot fish species and the Chaetodon capistratus (the four eye butterfly fish) the most. While this is very antidotal, I preserve these species to be more abundant.

After lunch, we did data analysis and of the Christmas tree worms. Although our data sample was small, we saw a slight preference for Christmas tree worms on brain corals. Next, we designed an experiment to analyze what types of marine debris are the most prevalent. We picked up trash from the beaches and mangrove areas. There were a surprising number of shoes and toothbrushes washed up on the beach. We found a little hermit crab within the trash that was using a bottle cap as a shell. It was very sad. Once we counted and weighed all the different types of trash, we had free time for the rest of the night.
Tonight, we say on the dock and put dive lights under the water. We saw a crocodile, a possible shark, and a few stingrays. It was really nice just to relax for the night and watch the stars.

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Another day in paradise…

We began the day by continuing our comparison of reef health in the marine protected zone and the non-protected zone by measuring the urchins we had collected the day before. As a group, we collected 144 in the protected area. After, we performed another graudrat and transect experiment on a reef outside of the protected zone. There was definitely more sea grass and macro algae present in this region then in the protected area. The benthos was covered in red coralline algae and there were lots of Ctenophores (cone jellies) floating around. One jelly road around on my mask for a while. When we collected urchins from this reef, we were only able to find and extract 60 urchins. While snorkeling around the reef, I saw my first nurse shark of the vacation hidden under the coral. I also saw lots of worms and brittle stars while searching for the urchins.

While on the reef, I saw a large number of herbivorous fish. For the first time on this vacation, I saw the terminal phase of the Sparisoma Viridi (the stoplight parrot fish) and Chaetodon Striatus (Banded butterfly fish). I continued to see all the other herbivorous fish mentioned in previous blog posts. In the Non-MPA reef, the fish tended to be bigger especially the parrot fish and the blue tangs. I believe that this is primarily due to the fact that this reef was deeper than the MPA reef. This was also the first time, I saw a school of Blue tangs and surgeon fish swimming around the reef picking macro algae.

After our experiment, we ate lunch and began our poster write up for the experiment. It turned into a 4-hour long catastrophe. Our final project turned out pretty good, but the road to getting there had many ups and downs involving many calculation errors. Let’s just say that basic arithmetic does not mix well with the heat and high levels of exhaustion. I have never laughed more about math in my life.

After, dinner we listened to presentations on green, red, and brown algae. One of our marine safety officers gave a talk on Belizean culture that was very interesting. Finally, I gave my presentation on the factors affecting coral reefs today and in the future.

Hunting all creatures great and small…

After breakfast this morning, we went crap hunting. We began to learn how to use a quadrant and transect tape on land. Quickly after completing our intro experiment, we leveled up and performed a similar experiment on the patch reef. During this experiment, I saw my first upside down jellyfish. There were hundreds of them in a sandy region near the grass bed. Occasionally, the jellyfish would float up like little aliens blooping around until they drifted back down to the bottom.

After lunch, we got to go on a boat ride to visit a patch reef near the back reef. Woo! We performed a very similar transect experiment over the patch reef. Then, we went urchin hunting! This was my favorite part of the trip so far. I felt like I was on a treasure hunt peering into the coral crevices. I also spotted a few light grey and blue brittle stars in my hunt for urchins.

Today, was another good day for herbivorous fish! For the first time, I spotted Pomacanthus arcuatus (the grey angle fish) in the deeper reef. I also identified Chrysiptera parasema (the yellow tail damsel fish) and Stegastes paritus, the Bi-color damsel fish. I continued to see Stegastes variables (the Cocoa damsel fish in the adult and juvenile phases), Chaetodon capistratus (the four eye butterfly fish), Scarus Croicensi (the striped parrot fish, initial and terminal phases), and finally Sparisoma Viridi (the stoplight parrot fish, juvenile and initial phase). I saw all of these fish swimming around clumps of coral. Each species was usually swimming in pairs except for Stegastes paritus and Chrysiptera parasema which were typically alone. For the majority of the time, the fish were picking bits of algae off the coral or out of the sand.

Mosquito bite count: 85! (this means I am winning right )

Fish on Fish on Fish

Today was a busy day! We woke up at 5 am to get on the bus to go to Glovers Atoll. After a short drive, we arrived at the dock and met our marine safety officers, Javier and Adalfo. We then took a three-hour boat ride to Glovers. The boat ride was a lot of fun! Once we got outside the Great Barrier Reef of Belize, there were huge swells on the boat. A very large sea (approximately 6 feet wide) turtle popped up near the boat to see us. We also spotted lots of brown algae, a few pelicans, and possibly a flying fish.

We arrived at paradise, aka Middle Cay island at approximately 10:40am. We toured the field station and ate lunch. After lunch, we got ready for our first snorkel adventure. We snorkeled directly off the pier of middle cay on a patch reef. There were so many different organisms. I saw one of the largest lobsters I have ever seen peeking out of a hole in the coral. I also saw a yellow stingray swimming above the reef.

On the reef, I saw so many herbivorous fish!!! The first fish I saw was, Acanthurus bahianus, commonly known as the ocean surgeon fish. I also saw the adult form of Acanthurus Coeruleus, the Blue tang surgeon fish with the characteristic yellow caudal spine. The next herbivorous fish I spotted was Chaetodon Capistratus, the four eye butterfly fish swimming above the reef. I also saw Stegastes variables, the cocoa damsel fish, which is primarily yellow with a blue dorsal region. I identified Scarus croicensis, the striped parrot fish, in the initial and terminal phases. The last herbivorous fish I saw was, Sparisoma Viride, the stoplight parrot fish, in the Initial and Juvenile phases. I feel like I notice so many more herbivorous fish now!

After our snorkel trip. We hiked to the coral graveyard and learned how to identify different coral species from their calcium carbonate exoskeletons. I now see coral in a whole new light. I can’t wait to try to identify some of the corals tomorrow.To end the day, we ate dinner and listened to two presentations on Echinoderms and Hard Corals. We also learned how to make a quadrant!

Belize it or not! I will be in Belize in less than 24 hours!

I am very excited for this trip to Belize. I think that it will be an amazing experience through which I can learn a lot about the coral reef and tropical rainforest environments. I haven’t had any experience with tropical rainforests, so it will be fascinating to see this environment up close. I expect that this course will be a very fun and enriching experience even though it involves a lot of hard work and early mornings.

I hope that I will be able to find and identify the amphibians and herbivorous fish that I learned about for my taxonomic briefings. For my topic lecture, I learned about the multitude of different factors affecting coral reefs today and the techniques that are being used to study them. I hope that I will be able to apply this knowledge during our time at Glovers.

The only thing that I am slightly nervous about are the mosquitos. Although we are traveling in the dry season and mosquito populations should be small, they always seem to find me. I hope that I will not come back from this trip as one giant mosquito bite.

I hope to learn more about the realities of doing field research in the tropics. I am still trying to decide what I want to do in the future. I believe that through this trip, I can get a better understanding of how to perform tropical research and hopefully decide if I want to become a marine biologist or go into medicine in the future. I believe that this trip will show me both the positive and negative qualities of becoming a tropical field researcher. I am the most excited to learn how to apply field research techniques on the coral reef and in the rainforest.

Fortunately, I have visited the tropics and Belize before. All of my immediate family members are avid scuba divers and we have taken family diving trips in Cancun, Florida, and Bonaire. It will be very interesting to learn more about the coral reef which previously I have only admired for its aesthetic beauty. A few years ago, my family took a trip to Belize, but we primarily stayed on the resort. I am excited to stray away from the more touristy parts of the country. Overall, I can’t wait to experience everything Belize has to offer.

Return to Civilization

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Smithsonian research station at Carrie Bow Caye.

Our final day in Belize dawned bright and early, as always. With sandwiches and snorkels in hand, we said our final goodbyes to the palm trees and composting toilets of Glover’s Reef and made our way out of the atoll. Our first stop before Belize City was Carrie Bow Caye, a Smithsonian research facility housed on a speck of an island in the Caribbean. We were able to meet a crab researcher that’s been studying the incredible diversity of Belizean reefs for over 30 years at Carrie Bow.

We then stopped at Twin Caye, an aptly named mangrove island that’s split in two by a channel. We first walked and then snorkeled through the muggy mangroves, carefully picking our way through their stilted roots. Mangroves may just look like odd trees from above the surface, but underwater they’re an important habitat for sponges and act as fish nurseries. I wasn’t able to identify any herbivorous fish species, but the mangrove roots were swarming with tiny juvenile fish for this reason. I even saw an adorable baby barracuda! (I think this trip has given me a new definition for cute).

And with that, we were off to the marina in Belize City. After an incredibly long lunch at the infamous Calypso restaurant, we made our way to the airport. Before I knew it, we were waving goodbye to this beautiful country, several bottles of hot sauce heavier than when we arrived.

So Long, Glover’s

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Doctorfish (Acanthurus chirurgus).

Our time in Belize has nearly run its course, and while I’m excited at the prospect of a hot shower, I can’t believe how quickly two weeks have passed. For our final day at Glover’s Reef,
we set out to find as much diversity as possible in the back reef close to the shore of Middle Caye. In my final snorkel here, I found a
huge number of herbivorous fish. Ocean surgeonfish (Acanthurus bahianus) and doctorfish (Acanthurus chirurgus) swam right past me in pairs and groups, and I found an abundance of cocoa damselfish (Stegastes variabilis) in between the corals. I also saw several French angelfish (Pomacanthus paru), a large black and yellow fish that feeds on algae, as well as some invertebrates.

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Cocoa damselfish (Stegastes variabilis).

We also collected a number of species from the shallow seagrass beds by the shoreline and sorted them by taxonomic group. Using just nets, we were able to catch two yellowtail damselfish (Chrysiptera parasema) and another fish that I believe was a species of goby. We ended the morning by presenting a colorful array of macroalgae, echinoderms, jellyfish, and mollusks.

 The afternoon’s activity was our long-awaited lionfish dissection. We were only able to capture four specimens of the invasive species, but each one was dismembered and analyzed by its stomach contents. Hopefully, the more we can learn about the lionfish, the better we can manage its invasion of the Caribbean.

For the perfect ending to our last day on the reef, we visited Southwest Caye, another island inside of the atoll. From the comfort of the dock, I watched the sun set on my Belizean adventure (at least for the time being).

The Professor Who Cried Mosquito

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Ocean view of “mangroves of death.”

It sure is one thing to learn about conservation, but seeing it in action is a whole other story. And this morning’s experiment was really all about doing conservation. After learning about marine debris, we spent the morning on a task that was part data collection and part beach cleanup. In just an hour, we picked up an incredible 90 pounds of trash. But the real kicker is that the same beach is cleaned every week, so everything we collected today had accumulated in just one week. Talk about mass consumerism.

 

In the afternoon, we tackled the much-awaited “mangroves of death.” Prepared by horror stories of mosquito clouds in years past, we were ready to sprint through the mangroves, snorkel and all. But our mangrove run turned into a leisurely stroll, as we encountered a total of zero bugs. A classic case of the professor that cried mosquito. 

 

After our safe passage, we said a tearful goodbye to our quadrats with one last coral experiment. We conducted our study on the back reef just beyond the island’s shoreline, where I saw much fewer herbivorous fish than on the patch reefs inside the atoll. The corals in this area seemed much more spread out and covered less area, which might explain the smaller number of fish.

 

To wrap up, we did our first night snorkel today. The reef is a whole other world at night; instead of seeing brightly colored parrotfish and small damselfish darting among the corals, I found a whole slew of other creatures. Some notable sightings included several huge spiny lobsters, a Nassau grouper, a yellow stingray, and several Caribbean reef squid. However, I did also find what looked like a blue tang surgeonfish (Acanthurus coeruleus); it had the characteristic spine on its caudal fin, but also had thick, vertical white stripes over its blue coloring.

 

To summarize, this is what I learned today: the ocean is filled with our trash; don’t use Styrofoam; and the reef is pretty damn cool in the dark.

Team Surf

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Spotted eagleray.

I’ve come out of day 12 of this trip with a whole new appreciation for land. We leveled up on our boating expedition today by traveling outside the reef crest and the calm waters of the Glover’s Reef. The morning’s topic was reef zonation, so we ventured into the open ocean to check out the coral ecosystems beyond the atoll. In these deeper reefs, I saw a lot of larger herbivorous fish, especially terminal phase parrotfish. I was able to identify conspicuous males of the striped parrotfish (Scarus croicensis) and some female/primary male stoplight parrotfish (Sparisoma viride). But the real excitements of the morning were our carnivore sightings; we watched a giant spotted eagle ray fly across the benthos and a nurse shark glide through mountains of coral.

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Nurse shark.

However, the choppy waves weren’t as appealing from the boat as they were on the reef. Thankfully every TFB came out of this experience unharmed, but I think a few of us might be jumping ship from team surf for the moment (sorry, Adrienne).

The afternoon’s snorkel was spent on back reef just in sight of the island, ending our boating adventures for the day. Though we couldn’t have been in more than 3 feet of water, the mix of seagrass and corals produced a scene reminiscent of Finding Nemo (sorry again, Adrienne). I swam right

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Dusky damselfish (Stegastes fuscus).

past a whole school of ocean surgeonfish (Acanthurus bahianus) and found tons of small dusky damselfish (Stegastes fuscus) tending to their algae gardens. Since these reefs were much smaller, I didn’t see any large parrotfish here, but I did find a number of tiny juvenile striped parrotfish (Scarus croicensis)—these seem to be common on shallower reefs. But the primary objective on the back reef was spearing lionfish, an invasive species from the Indo-Pacific. We managed to collect quite a few specimens for studying (and cooking) later in the week.

All in all, today gave me a new appreciation for both the ocean’s beauty and the wonderful stability of turf.