Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"gut length"”.
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Effects on Campostoma oligolepis Digestive Morphology and Gut Microbiota Composition across a Gradient of Urbanization
… investigated the impacts of urbanization on gut length and gut microbiota community composition in <em>C. oligolepis</em> from four small watersheds within the Etowah River drainage basin with different levels of impervious surface coverage (ISC). Individuals were collected from each sample …
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Seabird digestive physiology in relation to foraging ecology
… methods, is investigated experimentally. Gut passage rates of different food types of tested in vitro digestibility may reflect dietary specialization, with favoured prey types excreted more rapidly than less frequently encountered prey. Mean retention times of solid digesta are …
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Relationships between phenotype, diet, and individual specialization of threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn, Iceland
… and their head morphology, gill raker structure, gut length, and stomach content analyzed, and individual specialization calculated. The results showed that there was no correlation between head morphology or all traits combined with diet or individual specialization values. However, when gill …
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Ontogenic Morphology and Enzyme Activities of the Intestinal Tract of the Nile Tilapia, Oreochromis Niloticus
… post-hatch. During the developmental period, gut length increased from 90% to 410% of body length. The rate of increase in both intestinal and body lengths took place at an accelerating rate as the fish aged. The great intestinal length provides an advantage to the fish in digestion and …
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Diet of the Tropicalised Herbivore Siganus fuscescens Across a Broad Latitudinal Gradient and Comparisons With Temperate Seagrass-associated Omnivorous Fishes
… omnivorous fish species through gut content and stable isotope analysis. Diets were significantly different between species and locations. While seagrass was consumed by S. fuscescens in large quantities at one location, red (Hypnea and Chondria) and brown (Ecklonia and Sargassum) …
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Investigating the trophic ecologies of early life stages of small pelagic fishes in the Benguela upwelling ecosystem
… in their development such as increased relative gut length, that would suggest a higher degree of herbivory compared to anchovy. Contrastingly, anchovy display positive allometric growth patterns in their cranial development at a younger age, suggesting a greater importance of particulate feeding …
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Impact of intestinal bacteria on the anatomy and physiology of the intestinal tract in the PRM/Alf mouse model
Introduction: Intestinal bacteria influence gut morphology by affecting epithelial cell proliferation, development of the lamina propria, villus length and crypt depth [1]. Gut microbiota-derived factors have been proposed to also play a role in the development of a 30 % longer intestine, that is …