Research Symposium

25th annual Undergraduate Research Symposium, April 1, 2025

Diya Kochhar Poster Session 3: 1:45 pm - 2:45 pm/ Poster #59


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BIO


I am a second-year student majoring in biology with a minor in chemistry. I was born and raised in Northern Virginia. Previously, I have worked as a research intern at the IU School of Medicine's Biochemistry Department and at Dartmouth College's Public Health Department. In the future, I plan to go to graduate school and get a PhD in molecular biology and genetics. Outside of research, I was part of FSUs' First Year Abroad Program in Valencia, Spain and I love music and hockey.

Habitat Characterization of Seamounts in the Central and Western Pacific

Authors: Diya Kochhar, Dr. Amy Baco-Taylor
Student Major: Biology
Mentor: Dr. Amy Baco-Taylor
Mentor's Department: Earth, Ocean, and Atmospheric Science
Mentor's College: Florida State University
Co-Presenters: Sofia Grullon-Morales

Abstract


Despite advances in technology, the deep sea is still largely under-characterized and unexplored. Habitat characterization of seamounts in the Central and Western Pacific (CWP) is essential as baseline information of the habitats can provide insight into how substrate may influence benthic megafauna composition on the seafloor. The remotely operated vehicle (ROV) SuBastian conducted quantitative replicate survey transects at 1500m on 7 different seamounts within the Mid-Pacific Mountains, Necker Ridge, and Northwestern Hawaiian Islands. The video footage was converted to still images at 30-second intervals, and 15 randomly generated points were overlaid on each image. Photos were annotated within the BIIGLE software for features such as rugosity, substrate size, and substrate composition. Preliminary results indicate that a majority of sites are comprised of hardpan and basalt/manganese crusts. While outcrop was rare across the study, the Mid-Pacific Mountain seamounts had more than any other sites. Future results can be used to investigate the correlation between substrate and biodiversity, which may be at risk due to potential deep-sea mining activities.

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Keywords: deep-sea, seamounts, ocean, substrate, characterization