Tag Archives: science

Dr. Randall Hughes on SciGirls

During their visit to FSUCML, Randall took the SciGirls to the small marsh next to the lab. One SciGirl found this fiddler crab carrying her eggs.

This video is part of the WFSU SciGirls project. SciGirls, for those who haven’t heard of it, addresses an unfortunate reality in the world of science- there are a lot more men doing research than women.  It’s a problem that needs to be addressed as interest in science as a career has been waning overall.  Every Summer, the SciGirls camp takes groups of teen and preteen girls into labs and into the field with scientists.  After visiting Dr. Randall Hughes at the Florida State University Coastal & Marine Laboratory last Summer, a couple of SciGirls returned to conduct this interview.

Randall is a good role model for young aspiring female scientists.  Aside from the fact that she herself is a female scientist, most of her lab- and that of her colleague Dr. David Kimbro- are females as well.  If you’ve been following this blog, you’ve read about Emily Field’s graduate work on seagrass wrack and Kattie Lotterhos’ graduate work in genetics.  In David’s lab, we’ve heard from Tanya Rogers, a lab technician who keeps David’s lab organized, and who is crucial in the planning and implementation of their large field experiments.  We have more recently started hearing from Hanna Garland, Tanya’s fellow lab tech who is starting graduate school in the fall and who is looking into the abnormal levels of crown conchs on Randall and David’s Saint Augustine reefs.  And we have also heard from Cristina Lima Martinez, an intern who comes to the Kimbro lab from Spain to study the Bay Mouth Bar ecosystem.

Interested in learning more about the SciGirls?  Follow their blog!

We spent one day learning about invasive Hydrilla and alligators at Wakulla Springs, and then of course had to cool off!

In the (wire)grass

Dr. Randall Hughes FSU Coastal & Marine Lab

We spent one day learning about invasive Hydrilla and alligators at Wakulla Springs, and then of course had to cool off!

For most of the month of May, I was busy teaching an undergraduate course at FSUCML. The course – Marine Biodiversity and Conservation in Florida – was a new offering, and it was lots of fun to put together. And, at least from my perspective, it went pretty well! (I guess you’d have to poll my students to get the true picture of how it went down.)

One of the best aspects of the course, for me, was to learn so much about the special part of Florida that we call home. We spent one day trying our hand at tonging oysters in Apalachicola, Continue reading

Oyster Study: Year Two, Under Way in a Big Way

Rob Diaz de Villegas WFSU-TV

IGOR_chip_predators_NCE_100IGOR chip- biogeographic 150I’ve come to Saint Augustine to get the last of the footage I need to finish the In the Grass, On the Reef documentary, and we’ve come a long way from where we started from on this blog.  One year ago today, this site went live and Randall and David introduced you to their research.  The oyster study had just gotten its grant from NSF and we went out with David as he walked out into Alligator Harbor in search of study sites.  It was a slow, messy day- but a necessary first step. Continue reading

How much is a salt marsh worth?

Dr. Randall Hughes FSU Coastal & Marine Lab

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IGOR chip- habitat 150IGOR chip- filtration 150IGOR chip- gastronomy 150The answer to this seemingly rhetorical question was the subject of a recent review by Edward Barbier and colleagues in the journal Ecological Monographs. They focused not only on salt marshes, but also coral reefs, seagrass beds, mangroves, and sand beaches / dunes. The impetus for the analysis was the recognition that many coastal habitats are in decline – for instance, 50% of salt marshes are lost or degraded around the world – and the belief that we need a better understanding of the true costs of these losses. Continue reading

To Houston and Back: A story of a marine biologist and bugs

Emily Field FSU Coastal & Marine Lab
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Emily holds a net that will soon be full of marsh bugs. Later, at the lab, she will identify the many insect species that live amongst fiddlers and periwinkles, species more often associated with the habitat.

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Several weeks ago, I went to Houston to meet Thomas Decker, a tech in Steve Pennings’ lab at the University of Houston. Thomas graciously offered up his time to help me with my insect identifications. I have absolutely zero background in entomology, the study of bugs and other creepy crawlies most people squirm about. So how did I end up spending hours puzzling through an identification book on insects, a book with so many unfamiliar terms that I was constantly flipping to the glossary and various diagrams? Silly me, I decided that I needed to include the terrestrial part of my salt marsh community. Which meant I have spent quite a bit of one-on-one time with a dichotomous key on insects. A dichotomous key is a “choose your own adventure” style guide to identification. Continue reading

Crown Conchs Galore!

Hanna Garland FSU Coastal & Marine Lab

IGOR chip_ predators_FX 150One of the most fascinating aspects of the field of science is the unpredictable patterns and directions that certain communities can take over a period of time. Whether the change in a habitat occurs due a spontaneous event such as a devastating hurricane or a longer, more gradual event such as climate change; it is important to understand the impacts these changes may have on the resident organisms as well as the future of the community. Studying how organisms respond to each other and their environment are key principles of ecology.

As David mentioned in the previous post, I have recently begun my graduate student work in St. Augustine, where I hope to gain a better understanding of the unique observations we have made while working in the area for the NSF oyster project.
Other than being the nation’s oldest city, St. Augustine is a very dynamic place. From condominiums and restaurants to historic landmarks and beautiful beaches; the area is flooded with snow-birds during this time of year. More notably, St. Augustine has countless state parks, wildlife preserves, and protected habitats; which allow for not only attractions for tourists but areas of research for scientists and most importantly, shelter and nurseries for the resident wildlife. Continue reading

Crown Conchs Overrun Saint Augustine Reefs

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Scanning the photo, you can see crown conchs crawling about this Saint Augustine reef. Crown conchs are a normal sight on Florida reefs, but not to the extent seen here. David has tasked Hanna Garland with looking into this very localized phenomenon and its relationship with increasing reef failures.

Dr. David Kimbro FSU Coastal & Marine Lab

IGOR chip_ predators_FX 150Last week I detailed a recent trip to St. Augustine, ending the post with a mention of a side project being embarked upon by my lab there.  Throughout the past year, we’ve noticed that our St. Augustine study site was loaded with tons of crown conchs. Although crown conchs are ubiquitous in Florida, they are abnormally abundant on our St. Augustine reefs and our St. Augustine reefs are mostly dead. All our other sites have relatively healthy looking oyster reefs and few crown conchs.

But a few miles north of our monitoring reefs, we find absolutely no crown conchs and the health of the oysters is great. Because crown conchs, as has been shown by the research of our very own Doc Herrnkind, love eating oysters, it’s easy to conclude that crown conchs have mowed down all the oysters on our monitoring reefs. But why are they restricted only to our monitoring reefs? Is there a predator of conchs present north of reefs but that is absent on our monitoring reefs? Perhaps the environment has changed in a way that killed all of the oysters and the crown conchs are just cleaning up the mess.

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Proboscis out (protruding from the bottom of the snail), a crown conch heads towards a clump of oysters. The conch will use its proboscis to pry open the oyster shell and suck out the meat.

Luckily, Hanna has agreed to enter my lab as a graduate student to tackle this research project. So, she spent a number of days collecting coarse-scale data on the spatial extent of this conch-oyster pattern, consulting with locals about when this pattern developed, and talking with an oceanographer about how to learn whether and how the physical environment has lead to this pattern. In a forthcoming post, I’ll let Hanna fill you in on the details of this new project, which we will be implementing quickly. This is really important to the local community because our monitoring reefs and the conch infested area used to be the most productive area in St. Augustine for harvesting oysters and rearing clams. But now, aquaculture leases here have been abandoned and a very large population of crown conchs appears to have taken up residence.

Stay tuned for Hanna’s post later this week, she’ll go into a little more detail on what we’re doing.

David’s research is funded by the National Science Foundation.
On Wednesday, June 29 at 7:30 PM/ET, WFSU-TV premieres the In the Grass, On the Reef full length documentary. David and Randall guide us through the world of coastal predators (like crown conchs). Top predators maintain important ecosystems like salt marshes and oyster reefs- but the manner in which they do this may not be confined to eating prey.  Tune in to find out more!

Coastal Critters and More at the FSUCML Open House

Rob Diaz de Villegas WFSU-TV

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When I heard it was supposed to rain on Saturday, I was a little bummed. I was planning on taking the family to the FSU Coastal and Marine Lab Open House followed by the FSU Spring Game (where my 12-week old son could attend his first football game featuring my two favorite teams).  Luckily, the storms rolled through early in the morning and made for a nice day at the coast.

P1030210I started off by visiting my friends at the Randall Hughes and David Kimbro labs.  Robyn and Emily held down the fort in the Hughes lab, where kids watched a very peculiar sport.  As Randall’s previous post promised, there were indeed periwinkle snail races.  As you can see from the photo at the right here, the snails were color coded (white and blue) and numbered so that they could be told apart.  Some crown conchs (periwinkle predators) were placed into the tubs to give the smaller snails some incentive to climb.  The fastest climbers won.  Let’s watch part of one race:

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What are those new images that are popping up on the blog?

Dr. Randall Hughes FSU Coastal & Marine Lab

If you’re a regular reader of the blog, you’ll realize that we often talk about similar research questions or ideas in the context of different projects. As David mentioned in his description of the Baymouth Bar project, this overlap is usually intentional: as ecologists, we’re interested not only in the specific habitats that we study, but also in the underlying factors that affect these habitats and the valuable services that they provide to we humans.

It may appear at times that we’ve been covering a diverse array of topics, and while this is true, all of these topics are interconnected- a web of topics centered around a couple of central themes. The diagram below is the map that shows where every post-topic fits into these central themes. Even the artists, writers, and photographers we occasionally feature have their place amongst ecological processes like sedimentation and the non-consumptive effects of predators. Every post from here on out will have one of these icons on it- if you don’t know what the icon means, just click on it and you’ll be back at this figure with an explanation:

In the Grass, On the Reef master plan

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Who am I? Identity In the Grass

Katie Lotterhos FSU Department of Biological Sciences, FSU

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When we look at a salt marsh, we see thousands of stems of cordgrass. But in reality, the coastline may be made up of only a few different genetic individuals.  This is because Spartina can spread by growing clones of itself,  with the exact same genetic code (a genotype). Why does it matter if we know whether or not a salt marsh is made up of one or many different genotypes?  Well, different genotypes will have different abilities to resist pests or disease, or they may be tastier to eat for the little marsh critters like snails and grasshoppers.  Since some genotypes will be better than others in different situations, we care about genetic diversity because it can be a buffer against an uncertain environment.

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