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Effects of Hypoxia on Development of the Digestive System and Metabolism in Zebrafish (Danio rerio)

Matozel, Michelle Nichole
http://rave.ohiolink.edu/etdc/view?acc_num=akron1239317155

Abstract Details

2009, Master of Science, University of Akron, Biology.
Hypoxia slows growth and development, and limits the survival of many fish species. Many studies in fish have shown a significant decrease in metabolic rate when exposed to hypoxia; a mechanism which permits fish to survive but may have a cost. Smaller body size could be directly related to the decrease in the metabolic rate, which may or may not be related to a decreased amount of food consumption. Decreased blood flow to the gut could lower caloric assimilation. The effects of hypoxia on the digestive system were studied in larval and juvenile zebrafish. Yolk volume, blood flow to yolk, gut and cloacal area, and gut motility were compared between normoxic and hypoxic zebrafish larvae. Metabolic rates were also compared in juvenile and adult fish. The larval experiments show that there is a lag in development of the digestive system and a decrease in yolk usage. Red blood cell production was delayed in hypoxia and red blood cell density affects cloacal blood flow. In juvenile zebrafish, metabolic rates were lower in hypoxic zebrafish. Overall hypoxia leads to delayed development of the digestive system and could possibly lead to smaller body size.
Brian Bagatto, PhD (Advisor)
57 p.
Biology
zebrafish; hypoxia; digestive system; metabolic rate; development

Recommended Citations

Citations

  • Matozel, M. N. (2009). Effects of Hypoxia on Development of the Digestive System and Metabolism in Zebrafish (Danio rerio) [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1239317155

    APA Style (7th edition)

  • Matozel, Michelle. Effects of Hypoxia on Development of the Digestive System and Metabolism in Zebrafish (Danio rerio). 2009. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1239317155.

    MLA Style (8th edition)

  • Matozel, Michelle. "Effects of Hypoxia on Development of the Digestive System and Metabolism in Zebrafish (Danio rerio)." Master's thesis, University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1239317155

    Chicago Manual of Style (17th edition)

akron1239317155
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© 2009, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.