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App State receives more than $600K from NSF in support of sea sponge research

View larger image

Dr. Cara Fiore, visiting assistant professor in Appalachian’s Department of Biology, dives off the coast of Bocas del Toro, Panama, during her summer 2019 research to study sea sponge filtration. Photo courtesy of Dr. Cara Fiore

Edited by Jessica Stump
Posted Oct. 23, 2019 at 4:32 p.m.

BOONE, N.C. — The National Science Foundation (NSF) has awarded Dr. Cara Fiore, visiting assistant professor in Appalachian State University’s Department of Biology, more than half a million dollars in support of her continued research of sea sponges in the Caribbean.

Fiore said the primary goal of the project is to advance scientists, reef managers and policy decision-makers’ understanding of how sponges — “keystone benthic members of the reef ecosystem” — contribute to the base of the coral reef food web.

Additionally, through the development of sponge-based lessons that focus on local aquatic environments as well as coral reef ecosystems, the project will train student researchers at Appalachian and contribute to undergraduate and K–12 education.

This video, shot in summer 2019 off the coast of Bocas del Toro, Panama, shows sponge pumping activity with a nontoxic fluorescent dye. The same pumping activity will be studied by Fiore during her upcoming grant project in Curaçao, to begin summer 2020. Video courtesy of Dr. Cara Fiore

Fiore will work with Dr. Jennifer Geib, associate professor in Appalachian’s Department of Biology, and Marta Toran, outreach coordinator for the university’s Department of Geological and Environmental Sciences, to develop outreach activities for regional K-12 students that involve themes of the project.

“Sponges filter water to obtain bacteria, bits of organic matter and dissolved nutrients in the water for food, and it is because of this filtration activity that sponges can have a significant impact on the chemistry and nutrient availability in the surrounding seawater,” Fiore explained.

“An important factor in the health of coral reefs is the concentration and type of dissolved organic matter (DOM) — a complex pool of organic nutrients (e.g., vitamins),” Fiore said. “The composition of DOM on coral reefs is linked to the composition of free-living microbes in the seawater and to the nutrition of filter-feeding organisms, such as corals and sponges.”

View larger image

This photo, taken during Dr. Cara Fiore’s research of sea sponges off the coast of Bocas del Toro, Panama, in summer 2019, shows equipment used for sampling sponge exhalent seawater. Photo courtesy of Dr. Cara Fiore

View larger image

A group of sea sponges located off the coast of Bocas del Toro, Panama, where Dr. Cara Fiore, visiting assistant professor in Appalachian’s Department of Biology, performed research of sea sponge filtration in summer 2019. Her previous research is similar to that she will perform during her upcoming grant project. Photo courtesy of Dr. Cara Fiore

However, factors that influence the composition of DOM on coral reefs and the consequences of changes in the DOM profile are not well understood, Fiore continued.

“Sponges, which are sessile filter-feeders, have high potential to influence the composition of DOM. Thus, this project will use cutting-edge analytical techniques to characterize how diverse sponge species process DOM on coral reefs and elucidate impacts of this processing on the free-living microbial community,” she said.

The seawater around coral reefs is typically low in nutrients, according to Fiore, yet coral reefs are teeming with life and often compared to oases in a desert. “Life exists in these ‘marine deserts,’ in large part, due to symbiotic associations between single-celled microbes and invertebrates such as corals and sponges,” she said.

Fieldwork for the project will take place off the coast of the Caribbean island of Curaçao in summer 2020.

Grant project collaborators

For her grant project, Fiore will collaborate with the following individuals from outside the university:

  • Dr. Amy Apprill, associate scientist at the Woods Hole Oceanographic Institution.
  • Dr. Cole Easson, instructor and research assistant professor at Middle Tennessee State University.
  • Dr. Craig Nelson, associate researcher in the Center for Microbial Oceanography at the University of Hawai‘i, Mānoa.

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NSF grant funds Appalachian research on ecological diversification of sponges in the Caribbean
NSF grant funds Appalachian research on ecological diversification of sponges in the Caribbean
May 17, 2018

Using NSF funding, Appalachian’s Dr. Cara Fiore will investigate the environmental and physiological factors that may have led to the presence of diverse and abundant sponge populations in the Caribbean.

Read the story

About the Department of Biology

The Department of Biology is a community of teacher-scholars, with faculty representing the full breadth of biological specializations — from molecular genetics to landscape/ecosystem ecology. The department seeks to produce graduates with sound scientific knowledge, the skills to create new knowledge, and the excitement and appreciation of scientific discovery. Learn more at https://biology.appstate.edu.

About the College of Arts and Sciences

The College of Arts and Sciences (CAS) at Appalachian State University is home to 17 academic departments, two centers and one residential college. These units span the humanities and the social, mathematical and natural sciences. CAS aims to develop a distinctive identity built upon our university's strengths, traditions and locations. The college’s values lie not only in service to the university and local community, but through inspiring, training, educating and sustaining the development of its students as global citizens. More than 6,800 student majors are enrolled in the college. As the college is also largely responsible for implementing App State’s general education curriculum, it is heavily involved in the education of all students at the university, including those pursuing majors in other colleges. Learn more at https://cas.appstate.edu.

About Appalachian State University

As a premier public institution, Appalachian State University prepares students to lead purposeful lives. App State is one of 17 campuses in the University of North Carolina System, with a national reputation for innovative teaching and opening access to a high-quality, affordable education for all. The university enrolls more than 21,000 students, has a low student-to-faculty ratio and offers more than 150 undergraduate and 80 graduate majors at its Boone and Hickory campuses and through App State Online. Learn more at https://www.appstate.edu.

Grant project collaborators

For her grant project, Fiore will collaborate with the following individuals from outside the university:

  • Dr. Amy Apprill, associate scientist at the Woods Hole Oceanographic Institution.
  • Dr. Cole Easson, instructor and research assistant professor at Middle Tennessee State University.
  • Dr. Craig Nelson, associate researcher in the Center for Microbial Oceanography at the University of Hawai‘i, Mānoa.
NSF grant funds Appalachian research on ecological diversification of sponges in the Caribbean
NSF grant funds Appalachian research on ecological diversification of sponges in the Caribbean
May 17, 2018

Using NSF funding, Appalachian’s Dr. Cara Fiore will investigate the environmental and physiological factors that may have led to the presence of diverse and abundant sponge populations in the Caribbean.

Read the story

What do you think?

Share your feedback on this story.

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Appalachian Today is an online publication of Appalachian State University. This website consolidates university news, feature stories, events, photo galleries, videos and podcasts.

If you cannot find what you're looking for here, please refer to the following sources:

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Appalachian Today is an online publication of Appalachian State University. This website consolidates university news, feature stories, events, photo galleries, videos and podcasts.

If you cannot find what you're looking for here, please refer to the following sources:

  • Podcasts may be found at Appalachian State University Podcasts
  • Stories and press releases published prior to Jan. 1, 2015 may be found in University Communications Records at the Special Collections Research Center.
  • A university-wide Google Calendar may be found at Events at Appalachian
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