Tag Archives: Brown Algae

2022

We ate what??

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There was a lot to do today, since it was our last day!

We started out by going to a non-MPA to collect our last data set for our research question from three days ago. We used the transects and quadrats for the last time, which was very bitter sweet. The reef was very sparse, with very few live corals. There was a decent amount of brown algae, mainly the saucer leaf algae, covering the rubble. We saw some Caribbean reef squid though! There were six or seven of them, and they were all in a row in the seagrass bed that surrounded the reef. Doing what, I don’t know.

Afterwards, we went to a reef in the MPA, which they call “The Aquarium.” There were tons of fish, including parrot fish, angel fish, damsel fish, and others that I couldn’t identify. There was also a lot of brown algae! Yay! It was mainly saucer leaf algae and funnelweed, intermixed with some white scroll algae and y-branching algae. I saw a really cool blue variety of the y-branching algae, which I believe to have been dictyota menstrualis. It was right in the middle of a patch of saucer leaf algae.

dictyota humifusa with saucer leaf algae
squids in a row! (to the right)

After lunch, we compiled and analyzed our data, and presented it to the professors. You can read about it below! The poster doesn’t include in the discussion that there may have also been a difference in the non-MPA sited due to environmental factors that we couldn’t take into account, such as differences in the amount of fishing in each area.

We enjoyed some presentations from our fellow classmates, and then had a lovely dinner, which included friend conch! It was actually quite tasty. But it wasn’t until after dinner that the real fun began! We performed dissections on the three lionfish that were caught by Prof Solomon this week, and added our data to the list of lionfish data from the previous years of the BIOS 319 trip. Once we were done, Prof Solomon filleted the lionfish, and put them into a mixture of lime juice, tomato, and onions to create a ceviche. It turned out quite delicious! I would definitely recommend eating lionfish! Although I think I still smell like fish.

their names, from top to bottom: Main Course, Appetizer, and Snack

Anyways, today was the last day on the reef! It’s amazing that the time passed so quickly! Tomorrow we will be taking a boat back to the mainland, and starting the land portion of the class. See you all then!

-Elena

Prof Solomon fileting the lionfish
Performing the dissection on Main Course
Sophia and I

 

2022

Mondays are trash

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Contrary to this blog’s title, today was an exciting day! We went out this morning to the fore reef, which is the area of open ocean that’s right outside of the atoll. There, since the waves are stronger and the water is deeper, the organisms are typically much bigger, as they need to be stronger to withstand the greater wave energy, and they have more room to grow upwards. We saw some really cool organisms from a distance because the bottom was maybe 70 feet below the surface and none of us (except the water safety officers) could hold our breath long enough to get to the bottom. Some of the cool organisms we saw included comb jellies, which were floating near the surface, and if you looked really closely, you could see that their combs were lit up with electricity. We also saw a school of medium blue fish that we weren’t able to identify, a sea turtle, most likely a green sea turtle, that was just sitting on the bottom, and a huge barrel sponge. Unfortunately, I did not see any brown algae, as it is too small to see from 70 feet above the reef. surprisingly, I saw minimal sargassum, which I think was due to the fact that the waves were so choppy.

a comb jelly! (picture courtesy of Phoenix)

possible green sea turtle!

Unfortunately, the weather wasn’t really cooperating with us, so we had to head out pretty quickly. Lucky for us, that meant we could get the nightly presentations done in the morning in anticipation of a possible night snorkel.

The afternoon was a whole other ball game. Last night, we heard from the Belize Fisheries Department manager, and he spoke a bit about starting beach cleaning efforts on Middle Caye. Today, we did a beach clean up, but being TFBs, we had to incorporate science somehow! You can read about our research below 🙂

our poster

I was doing clean up in the mangrove area behind the kitchen, and there was a lot of trash! It was sort of sad because even though we had two giant trash bags overflowing with trash, we had hardly made a dent. We spent the whole afternoon doing the beach clean up, sorting the trash, and weighing it, before putting the trash back into the bags so they could be properly disposed of. The people at the Coral Graveyard also found a box fish skeleton!

box fish skeleton
trash party! -unfortunately I did not get any pictures during the actual trash sorting, since I didn’t want to touch my phone

After the trash shindig we finished the last presentation, and then, courtesy of Nate, we got to watch a hermit crab change shells! I had seen videos of it yesterday in Lilliana’s crustacean presentation, but it was cool to see in real life. We then went to dinner, and since the weather wasn’t looking good enough for a night snorkel, we hung out and talked to Ruth, the water safety officer, about her experiences as a native Belizean, as well as the natural history of the country.

While most Mondays may be trash, today was certainly a good day! Tomorrow is the last full day on the reef, and we have a lot to do, so I will keep you all posted!

the boat in the open ocean above the fore reef
Sophia diving
2022

urchins upon urchins upon sea eggs

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Today, in contrast with yesterday, did start out with urchins! Bright and early in the morning we headed out to a patch reef in the MPA to collect data for our research question. Afterwards, we collected urchins for the urchin hunt, and gathered a whopping 52 urchins at the first patch reef, plus one West Indian Sea Egg that I named Harry. We had three slate pencil urchins and 49 E. virdis urchins. We went to another MPA and collected more data, and more urchins. This time around, we got 57! All of them were E. virdis. I also found another sea egg, which I named Sally. I have faith that the two of them will cross the atoll and find each other eventually 🙂 Overall, it was a great morning for echinoderms (the species including urchins, sea stars, sea cucumbers, etc), as we also came across multiple brittle stars and two sea cucumbers!

Harry the west indian sea egg
Sally the west indian sea egg, covered in sea grass

In both MPA patch reefs, I was on the lookout for brown algae. I saw a lot of the saucer leaf algae (turbinaria tricostata) and white scroll algae (padina jamaicensis). I also saw some really cool y-branching algae that had some vibrant blue branches, which I believe to be dictyota menstrualis. Also, I finally figured out what the brown algae clumps were that I couldn’t identify! I believe it to be padina gymnospora, a species related to the white scroll algae. This variety had been covering the reef patch in the MPA that we saw yesterday, so it was nice to figure that out.

dictyota menstrualis (the brown y-branches and the blue y-branches toward the center)

In the afternoon, we went on a “for fun” snorkel in the reef flats. We came across a reef that was mostly algae, but had some sparse coral and lots of fish varieties! We came across three lionfish, but none of them were caught, unfortunately. We did spear one earlier, bringing the current lionfish count to two. Also, fun fact lion fish catching is the only kind of fishing allowed in the conservation zone, since it is an invasive species!

There were also several giant lobsters, yellow jacks, damsel fish, parrot fish, and angel fish! One of the areas was like a fish highway, which was cool to see, in spite of the reef not really being a true coral reef anymore. As I mentioned, the reef area was mostly algal-dominated, and there was rotting sargassum covering a lot of the reef floor. As the sea weed rots, it releases nutrients in the water, which actually promotes more algal growth, rather than coral growth. The fact that there was healthy coral there at all was quite impressive.

But that was about it for today! Tomorrow, we will most likely be either going to the forereef or a non-MPA to do more research, and then we will be doing some sort of land activity. I will let you know tomorrow!

-Elena

a whole lotta brown algae
Sophia taking data from the quadrat
2022

i thought the urchin was my friend…but it was anemone

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Unfortunately, the day did not begin with urchins, but they will enter the scene soon, don’t worry!

We started off the morning by planning out another experiment. We knew we were going to be visiting preserved reef patches and non-preserved reef patches and collecting some sort of data with the quadrats, and that we would be doing urchin scavenger hunts. From there, we developed a research question that we could answer by gathering this data. We decided to investigate the correlation between live coral coverage and urchin prevalence, and how the amount of each changed between protected areas and non protected areas. We did not finish collecting data, so stay tuned!

Before we went out to the reefs, we waded in the sea grass bed and collected specimens to look at more closely in the outdoor lab. Some notable finds include a Caribbean spiny lobster, mantis shrimp, damsel fish, several varieties of crabs, lime urchin, anemone, corallimorph, conchs, and our favorite-brown algae! We found some sargassum natans, and some of the saucer leaf algae!

Afterwards, we went to the reef patches. We went to the non-protected area first to collect our data. It was difficult conditions, since the waves were strong and it was hard to stay in place. The urchin hunt was also difficult, since they like to hide in little burrows, so one could not easily get them out without harming them. We then went to the protected reef to snorkel for fun.  Entering the protected area, I felt like I had died and gone to brown algae heaven (although maybe that wasn’t a great sign for the corals). There was saucer leaf algae, white scroll algae, and sargassum everywhere! They were intermixed with another type of algae, although I couldn’t identify it. The algae was growing all over the old, dead corals so densely I couldn’t even see the sand. Exciting stuff!

We also found a damsel fish garden, which was super cool. The damsel fish have little gardens where they cultivate their favorite algae, and protect it from other fish. And finally, the group spotted a lionfish, which was promptly speared (lionfish are invasive, and their capture is actually encouraged!) and brought aboard so we can use it for activities later this week.

When we got back, we counted, IDed, and measured the diameter of the urchins we collected, and then settled in for the night! Tomorrow, we are going to be collecting more data for our research, and maybe we’ll even have an answer. See you all then!

-Elena

some of the algal friends we collected
a slate pencil urchin
the damsel fish garden ft. the gardener itself
saucer-leaf algae and the unknown algae
free the homie
…but like don’t cuz they’re invasive 🙁
2022

today powered by coconut

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Today was a big day. I know you were all waiting in suspense after the cliff-hanger ending to yesterday’s blog post. Well, wait no more.

We started out the day by practicing using out quadrats (which are actually 2×2 feet-oops!). We had to come up with a scientific question that we could answer by using the quadrat. Sophia and I chose to ask what percentage of the sand is occupied by live foliage. We laid out 30 feet of transect tape, then placed the quadrat on either side every five feet, and counted the number of squares that contained a live plant. The answer we came up with was 22.7%.

The next step was to figure out a scientific question that we could answer with the quadrat in the reef, collect data, and present our findings to the professors. You can read all about it below!

Also, I must note that throughout our scientific process we were being supplied fresh coconut by the kids. #sponsored

After that, we went on a walk to the coral graveyard-Professor Correa’s favorite place in the world! It looked like a beach full of gray rocks, but upon further inspection, it turned out to be fossilized corals! We were able to identify the corals based on the shape of the calyxes (the little spot that the coral polyp inhabits). In live coral, the skeleton is covered by the tissue, so in these fossils, we could easily see the identifying markers. Some of the fossils belonged to corals that have been nearly wiped out by disease and are rarely seen in nature, so the coral graveyard was truly a special place.

I also saw some sargassum that had washed up on the shore of the coral graveyard. I think it was sargassum natans VIII, but it was hard to tell because most of it was dead. There were also some floating sargassum patches out at sea, which was cool because there aren’t any that I have seen within the lagoon.

We then came back to watch the presentations for the night. I delivered mine on nutrient pollution, overfishing, and the future of the coral reefs.

And that was it! Tomorrow we are looking to go further out via boat to see new reefs, weather allowing of course. Stay tuned!

-Elena

ps. happy graduation to my brother! (although I doubt he’s reading this)

2022

Beware the Mangroves of Death

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Today was the first snorkeling day!

We started out by snorkeling in the area by the dock, to make sure everyone was comfortable. We then moved to a patch reef further out, and we saw a lot of cool organisms, including some Christmas tree worms, huge brain coral, a corallimorph, some lionfish, and some lobsters. And even more exciting than that-lots of white scroll algae (padina jamaicensis) and sargassum (I did not identify it, but it sure was floating)!  Afterwards we came back to the wet lab and constructed quadrats- 3×3 foot pvc pipe frames with strings woven across to form crosshairs. We will be using the quadrats to measure stuff in the field, starting tomorrow.

After lunch we had a vote-either to return to the patch reefs we had gone to this morning, or go to a new area, through the Mangroves of Death (MOD). The professor’s kids (who are along for the ride, I don’t know if I mentioned that) provided a very convincing argument, including the threat of crabs in our rooms if we did not choose the new area. So a landslide vote was probably expected, even considering the risks. We suited up in our snorkeling gear, including our masks, and then ran through the mangrove forest to the reef. At first it was fine, but then we began to feel the pinches of the mosquitoes biting through the dive skin. We had been descended upon by the mosquitoes of the MOD! We ran faster until we finally made it into the water. Not one person was left unbitten.

We then had an enjoyable experience in the patch reef, looking for the organisms or interactions listed on our scavenger hunt pages. Some notable things we saw were a sea urchin and many species of colorful fish.

When we were done, we were presented with the option of either running back through the MOD, or snorkeling. The choice was obvious. While snorkeling back, we saw many orange sponges, some anemones, a yellow ray, and a shark among the sea grass! All around, snorkeling back was the right choice.

We then listened to our classmates present their topics and taxa, and then we split for the night.

Overall, the patch reefs had so much to offer, and I’m looking forward to exploring them more! Also tune in tomorrow, I heard we’re going somewhere deemed “Un-Belizeable!”

-Elena

ps. happy birthday Hugh!!

pps. sorry for the bad photo quality-I can’t easily download the pictures from the digital camera to my computer :'(

picture one is part of the group, picture two is the shark, picture three is y-branched algae (dictyota cyliolata), picture four is white scroll algae (padina jamaicensis) and an unidentified brown algae, and picture five is the kids and their hermit crab empire (under each coconut shell is a hermit crab)!

2022

A Harsh Introduction

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Day one in Belize has almost come to a close, and boy was it a long one!

We managed to get to the airport no problem, but once we did, it was a bit of a rollercoaster ride to get on to the plane. There was the issue of finding the terminal, extra paperwork, lost boarding passes, lost credit cards, and an impossible-to-find drinking fountain! But somehow the group made it on to the airplane in one piece! For the flight, I downloaded books from z-library, which I would definitely recommend, especially if you don’t have space in your bag for books.

The people next to me were an adventure as well, since they were on their honeymoon, and they were sure to make it my problem. Just kidding-they were perfectly nice.

Once we landed, we went through customs, got our bags, and then headed to the marina. We got lunch and got on the boat, expecting a two hour ride to the Glover’s Reef Research Station. It ended up being double that. We also encountered very choppy water after passing the reef barrier (which used to be Belize’s coast before sea levels rose!), and in order to fight the sea sickness, I had to stare at the horizon for the remaining 1.5-2 hours. On the bright side, I saw some floating sargassum (which belongs to the brown algae taxa!) and one of the water safety officers told us about Belize culture and language. For example, in Belizean kriol, “humoch aklak” means “what time is it.” Also, since Belize was colonized by the English until 1981, the kriol language, spoken in central Belize, is a mix of English with African language, while native/Maya languages are more spoken in the South, and Spanish in the North. Last fun fact, the population of the entire country of Belize is about 400,000, making it the population of Sacramento in an area the size of New Jersey!

When we got to Glover’s Reef, we got to look around the station area a bit. The bunk rooms, kitchen, and toilets are all on stilts, while the wet lab, classroom, and showers are not. We had a delicious dinner of rice and beans, chicken, salad, and fresh mango, and then we had a short debriefing about tomorrow, before breaking off to do our journal entries and blogs.

The island is literally crawling with huge hermit crabs and common land crabs, which is very cool. There are a lot of palm trees and some little mangroves. There were also a lot of bugs, but the wind came in so they haven’t bothered us since dusk. I can’t wait to see what else is going on on the island, and in the reefs around it!

I will update you all again tomorrow!

-Elena

ps happy birthday to my dad 🙂

 

2022

Belize->Soon!

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Hey this is Elena (aka ers10). I can’t believe that the trip is happening so soon! Technically for me it’s starting tomorrow, since I have to fly to Houston from California. I just finished packing, which was a relief since I really wasn’t sure if everything would fit in one carry-on-sized bag and a backpack. I definitely think I forgot something, but I have faith it will work out.

I’m so excited to see everything I read about in real life. The reading of the textbook was super informative, as was the research I did for the presentations (for the reef I researched brown algae, and for the rainforest I researched orthoptera, the name of the order to which grasshoppers, locusts, crickets, and katydids belong). I’ve been to the tropics once before, but I don’t really remember it, and it definitely was not an experience like the one we’re about to have, although I realized the professors left much of the trip as a surprise. What I do know is that we’re going to see so many cool plants and animals, and I absolutely cannot wait.  I’m also super excited to spend the days hiking and snorkeling while looking for the different organisms. I love spending time outside, although I’m a bit nervous about the heat and humidity because I’ve gotten used to the nice weather at home. I’m also a bit nervous about the bug situation, both with regards to being bitten and to not being able to find/identify any of my taxa! I’ve never done field work before, so I don’t really know what to expect.

Overall, I’m more excited than nervous. I’m looking forward to learning about the organisms and topics that I didn’t research, as well as hopefully seeing the taxa I chose. I also can’t wait to get to know everyone on the trip better!

Next time you all hear from me, I should be in Belize, so see you all then!

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Brown Algae, Red Algae

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Day 4 of Beach Days

Today occured in sort of a reverse order: we processed sea urchin and coral data from yesterday, presented our finding, taught ourselves about tropical biology taxonomic groups and went to the ocean.

One of the interesting interactions in marine life is one between the chub crab and brown algae. Chub crabs depend on epiphytes (organisms growing on alga) for their diet and the algae benefit from having epiphytes growing on its thallus (the entire body of an algae). While in the ocean, near a reef crest on our island, I was surprised to see this interaction in play. While looking for crustose coralline algae (a red encrusting algae that grows on corral rubble), I turned over rubbles and saw this interaction before my eyes: a tiny 2 cm blue-greenish crab picking off green dots of epiphytes living on top of red algae the size of my palm. Another aspect of crustose coralline algae is that it supports a number of animals that utilizes algae as habitat. Within mounds of these algae are 2 E. Leu sea urchins and 1 brittlestar that hid within pyramids of algae.

Back at the wet lab of our research station, I presented to the

Live Sargassum fluitans floating above sea grass

class 12+ species of red and brown algae, many of which I did not expect to see here, and many of which I realized were different species only after I had collected and viewed the specimens with greater detail and attention at the lab. After an incredible dinner of shrimp and rice, we heard our wonderful marine safety officer talk about Belizean culture. Despite its current political situation with Guatemala, Belize has been one of the most peaceful countries in the region and has been a destination for many victims of civil wars in the surrounding area. By the end of the class, we learned a couple phrases in the common unofficial language of Belize: creole. To say “what are you doing?” you would say “wat yu d do?”.

Instead of “yes” you would say “yeh mann”.

2016

(Nakian) May 30: Dissection x Lionfish x Pina Colada

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Brown algae found today
Brown algae found today

Tonight is the last night in Belize. We went to the patch reef nearby our dorm and collected specimens in the morning. We found bunch of little crabs, a level 45 hermit crab (the biggest I have seen), bunch of algae, and played with conchs that tried to swath our hand away with their extended body. It was amazing to see so many different animals in such a shallow water. After that we returned to our coral colony project and concluded that colony coverage decreased.
In the afternoon we dissected lionfish, recording their weight, body length, gape size, body fat volume, and stomach content. Since we didn’t know the previous data we couldn’t make any conclusions but it was fun cutting up an invasive species. I am only waiting to taste the ceviche I heard they were making with the fish we dissected.
I collected the same 5 kinds of brown algae that I have seen while I was staying here: Sargassum, Dictyota, Turbinaria, Padina, and Lobophora. I couldn’t find any other and I concluded that these are the most common species in the region.
Before dinner we sailed to Southwest Caye, a resort island. We sat in a bar and drank pina colada by the dock under the sunset. After a amazing dinner, and watching the slideshow of our photo we have taken during this trip concluded our course very nicely.