Tag Archives: lobster

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

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 🙁

Day 4: Patch Reef Health + Sea Urchins

Our class traveled on boat to perform some examinations of the patch reefs on Glover’s Atoll today! Using our transect tapes and quadrates again, our class decided toe analyze the relationship between the density of sea urchins and percentage of live and dead coral on both marine protected reefs as well as unprotected reefs. We discovered that although our methodology seemed sound that with the shallow waters, strong ocean currents, and the presence of millepora alcicornis or Branching Fire Coral that was present on both reefs. Jasmine got stung by this hydrozoan unfortunately :(, but the stings will go away with hydrocortisone! We did discover that the marine protected reefs were deeper and had healthier and more abundant corals and fish!

In the marine protected area I saw many solitary Christmas Tree worms of all colors!Right next to it is some Magnificent Feather Duster worms!

I also got to see my first split crown feather duster! You can tell by the how the radiole splits perfectly in half mirroring itself.

I believe I also got to see my first Christmas Tree Hydroid which was very exciting!

I even saw three lobsters with Faith all lined up in a row! Incredible!Right after I saw my biology professor, Dr. Solomon, spear a lionfish which is an invasive and harmful, yet delicious, species to the Caribbean. Lillian was very excited! 😀

Earlier in the day we collected all sorts of sea creatures for examination in the wet lab room. There was: green algae species, brown algae species, glass shrimp, conch species, anemones, mantis shrimp, several crab species, sea urchin (Caio picked it up with a net), and even a lobster!

I can’t wait to go to see more on the outer reefs tomorrow! Peace out!

~ Maegan

TFBs: 1 Lionfish: 0

My life goal has finally been achieved, but we’ll get to that soon.

This was a great morning for crustaceans. It was too windy to go out to the fore reef so we stayed closer to shore and went looking through the seagrass for organisms to bring back to the wet lab to examine. We found lots of algae, snails, and other organisms, but I don’t care about those, I’m here for the crustaceans. Can you spot how many crabs are in this bucket? I don’t actually remember how many we caught, but we got plenty of aquatic hermit crabs, a green clinging crab or emerald crab (Mithralculus sculptus) who was very well behaved and let me pick him up without pinching me.

We also found several brown crabs that I haven’t been able to identify yet, who were not as nice and tried to take a chunk out of my thumb when I went to move them 🙁

We also saw a spiny lobster! One of our water safety officers picked it up in the seagrass and plopped it into a bucket for us to examine.

It was pretty small for a lobster, but still big enough to be intimidating to those unfamiliar with lobsters.

We also found several mantis shrimp, which I had no idea were even in this area!

After an afternoon boat ride we went to a large reef patch and spotted a lionfish! It was the biggest lionfish I’ve ever seen and luckily this time our professor brought the lionfish spears and was able to impale it and bring it back onto the boat for us. It was almost perfect timing after my presentation yesterday about the lionfish invasion of these reefs and how my life goal was to eat one. It’s been years of me searching for a lionfish, and soon I will finally be able to eat one.

I will sleep soundly tonight with the promise of lionfish tomorrow.

Crab: 1 Liliana: 0

It’s day 2 on Glover’s and our first day in the water! We had a super early (in my opinion) start, everyone woke up around 6:30 and we all geared up and headed to breakfast at 7. After some delicious banana pancakes we got into the water for the first time and went to a patch reef a little ways off. It was a pretty calm swim through a lot of sea grass and then before we knew it we were at the reef! It was incredible and I wish I had photos to add here but I didn’t bring my camera on the first swim, hopefully someone else here will have photos for you to see! We saw so many corals and fish, and such a wide variety of organisms all over the place. Everywhere you looked there was something new to see. We even saw a small lionfish sitting on the reef, which is not ideal for invasive reef species control, but still interesting to see one out in the wild in real life! The first swim was a good one for my taxon group, crustaceans; we saw a Caribbean spiny lobster hiding in a hole underneath some coral, another organism I have been hoping to see in real life. After about an hour in the water we went out for a break and some land prep for tomorrow before lunch. Around this time I was outside with the two kids who had collected a bunch of crabs in coconut shells. They showed me one smaller crab and despite their warnings that he was (understandably) angry, I tried to pick it up to get a better look. Alas, the crab outsmarted me and got a good chunk of my finger in his claw, luckily it didn’t draw blood, just a long scrape and my hurt pride. Clearly my crab catching skills are a little rusty, but there are plenty of other crabs around that are hopefully a little friendlier.

We went back in the water after lunch, but not before a quick jog through the mangroves of death. While dramatic sounding, it’s pretty much a trail through the island that goes along the mangroves, and is absolutely filled with mosquitos, it felt like they were completely covering us until we all sprinted into the water and hid under the surface for them to go away. Once we got through that we shuffled our way through a bunch of sea grass until we got to a sandy area with lots of patch reefs, and we went swimming through looking for behaviors and organisms as part of a scavenger hunt. This area was less protected by the island from waves so we were pushed from side to side and through the reef and pulled around. My handwriting is already terrible, but with the waves pushing my arms and clipboard around I don’t think any of my notes are legible. Unfortunately these waves also pushed me up against the coral, and soon after I swam further away I realized that the part of my hand that had gotten smacked into the coral was turning red, and felt a little like it was burning. I discovered that I had the misfortune of bumping into a fire coral, named that probably because it hurts when you touch it. Coral: 1 Liliana: 0

However at the end of the day we went through our first round of taxon presentations and lectures, and by then my finger didn’t hurt from the crab and my hand wasn’t burning from the coral, and despite all the bug bites, I can’t wait to do it again tomorrow!

Day 13

As per usual, actually engaging with an issue gave us perspective today. The issue was marine debris. Yesterday, Stephanie gave us a briefing on the topic. It was a great overview of the many different ways in which trash enters the marine system, persists in the system, and is ultimately washed up onto shores across the globe. In the morning, we conducted an experiment around a beach clean up. Ultimately, we asked a question regarding the composition of trash in terms of its material. As we expected, the trash was dominated by plastics by weight and Styrofoam by volume.

What was staggering was just how little of a dent we made in just the four sites that we picked. Add to that the entirety of the island, the entirety of Belize, and then all of the other countries. The scale is just too large to comprehend.

While collecting trash, I noticed that there were so many dried up Gorgonia ventalina individuals. All of this continues to build up my thought that this species is the dominant soft coral on the Glover’s Reef Atoll.

The best part of the day, however, was the night snorkeling trip that we did. It was very logistically difficult due to the dark, the close proximity of the entire group, and the higher levels of suspended sediment. Nonetheless, the dive was great. The community composition was really different. I also saw a slipper lobster!

Tomorrow marks our last full day. I can’t really imagine going to back to the real world and Rice.