00000ctm a22000004a 4500 UP-8027390931312570088 Buklod 20240315092644.0 o--- | || || ta 240315s2022 xx d r |||| u| (iLib)UPCEB-00012909759 UPC eng LG 993 2022 B4 R67 Rosillosa, Kristina Rhean C. author. Global distribution of Tripos furca (EHRENB.) F. Gomez in present and future climate scenarios Kristina Rhean C. Rosillosa; Thesis adviser, Brisneve Edullantes. 2022. Cebu City, Cebu Department of Biology and Environmental Science, College of Science, University of the Philippines Cebu c2022. viii, 39 leaves illustrations (some col.) Thesis (Bachelor of Science in Biology). University of the Philippines Cebu. June 2022. NOT available to the general public. Available only after consultation with author/ research adviser. Available only to those bound by confidentiality agreement. Anthropogenically-induced climate change has led to drastic changes in the marine ecosystem. Existing studies on phytoplankton response to climate change report detrimental implications such as reduced ecosystem services and harmful algal blooms (HABs). Some studies have applied ecological niche modeling (ENM) on marine phytoplankton to assess their response to climate change, mostly at the community-level. Species-specific ENMs on marine phytoplankton have only been applied to a few model species of coccolithophores and toxic dinoflagellates. Here, the study projects the current and future distribution of the cosmopolitan, non-toxic dinoflagellate Tripos furca. Species occurrence data and environmental variables were accessed from the open-source databases ? PhytoBase and Bio- ORACLE, respectively. Using the cleaned data, a presence-only Maxent model was developed. Suitability maps were produced to compare the present and future ecological niches of T. furca. The model predicted range contractions, especially in the subtropical and tropical waters in the Northern hemisphere, as well as a poleward shift in range over time. Increased occurrences of this dinoflagellate in the Arctic Ocean should be expected in the future. Suitability scores from the model projections were also classified into risks of bloom formation. In addition to overall habitat reduction, blooms of T. furca are less likely to occur in the future and expected to develop only in coastal waters of colder oceans. These results affirm previous phytoplankton modeling studies showing the shift of HABs and community composition from dinoflagellate to diatoms. More importantly, the model?s projections exhibit how a cosmopolitan dinoflagellate can be an effective subject in ENM studies on climate change. Edullantes, Brisneve. Thesis adviser. UP UPCEB CEBU-LAHUG LG 993 2022 B4 R67 Thesis