Date of Award

2024

Document Type

Thesis

Degree Name

MS in Biology

Department

Biological Sciences

First Advisor

Jai Dwivedi

Second Advisor

Ales Vancura

Third Advisor

Louis Trombetta

Abstract

This experiment explores the response of marine organisms to the combined challenges of ocean acidification and rising temperatures, with a focus on coral reef ecosystems. As global climate change threatens profound declines in coral reefs, understanding the multifaceted impacts of these stressors becomes crucial. The study observes cellular changes in A. samoensis tissues in four different groups, including control, Temp, pH, and Temp and pH. Results indicate significant breakdown of membrane compartmentalization and cell junctions, with notable degradation and calcium carbonate crystallization in pH-stressed samples. Additionally, chlorophyll extraction data support coral bleaching due to the expulsion of zooxanthellae. These findings underscore the severe impact of pH and temperature variations on coral health, with pH conditions exhibiting a stronger effect. The study concludes by proposing a follow-up experiment involving the addition of carbon-fixing plants to mitigate environmental stressors and enhance coral resilience, aiming to contribute to the conservation of coral reef ecosystems in the face of climate change challenges.

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