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Energy Budget for the African Cichlid, Tropheus Duboisi

Morris, Cortney Kay

Abstract Details

2017, Master of Science (MS), Wright State University, Biological Sciences.
Herbivorous fish living in Lake Tanganyika rely on algae as their main source of food and are constantly feeding on low quality (low energy) food. The lake is warming leading to fewer nutrient upwelling’s that are likely limiting the amount of energy available to fish. I calculated an energy budget to compare energy intake against energy expenditure of the African cichlid, Tropheus duboisi, by measuring metabolic rates at rest, while feeding, digesting and being aggressive as well as the caloric content of food, feces, and urine. Fish fed a low quality diet of algae contaminated with sediments had lower growth rates, but they had no significant differences in daily behaviors. As Lake Tanganyika warms I would expect fish living in the lake to have lower growth and reproduction rates. This could be detrimental to the fish populations, the ecosystems of which they are a crucial part, as well as for the many people depending on the lake for food.
Lynn Hartzler, Ph.D. (Advisor)
Yvonne Vadeboncoeur, Ph.D. (Committee Member)
David Goldstein, Ph.D. (Committee Member)
43 p.

Recommended Citations

Citations

  • Morris, C. K. (2017). Energy Budget for the African Cichlid, Tropheus Duboisi [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright151569848167891

    APA Style (7th edition)

  • Morris, Cortney. Energy Budget for the African Cichlid, Tropheus Duboisi. 2017. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright151569848167891.

    MLA Style (8th edition)

  • Morris, Cortney. "Energy Budget for the African Cichlid, Tropheus Duboisi." Master's thesis, Wright State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright151569848167891

    Chicago Manual of Style (17th edition)