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 5 of 5 for “"smoltification"”.
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Thyroid in intestinal development during atlantic salmon smoltification
… and physiological levels, a process called smoltification, the fish migrate downstream to the sea. During this process of seawater (SW) acquisition, the osmoregulatory organs encompass critical changes, especially due to the excess of ions. The intestine is one of the osmoregulatory organs, …
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The Genetic Architecture of Juvenile Migration in Rainbow Trout (Oncorhynchus mykiss)
… physiological adaptations in a process called smoltification. And while much is known of the behavior, ecology, and physiology of the smoltification process and the migratory life history, little is known of the underlying genetic architecture modulating this adaptive tactic. Using quantitative …
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Intestinal physiology in atlantic salmonpreparatory changes during smolting and after seawater entry
… the parr-smolt transformation (smolting or smoltification) that precedes migration of juveniles to the ocean. Utilizing an integrative approach, the work primarily aimed to investigate the development of the mechanisms associated with Na+ and Cl- movement across the intestinal epithelium, …
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Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis
… physiological changes associated with salmonid smoltification, and compared to non-anadromous brook trout of the Matamek River. There were no significant differences in plasma thyroxine concentration, gill Na+,K+-ATPase activity, hematocrit or osmoregulatory ability of anadromous and …
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Do freshwater growth opportunities and migration barriers limit recovery of imperiled anadromous Oncorhynchus mykiss populations?
… mortality rates in freshwater caused by delayed smoltification due to low growth rates may be significant factors limiting these steelhead populations. With steelhead facing declines across their range, this study highlights the importance of identifying factors limiting growth and survival …