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.
Results
Showing 1 to 11 of 11 for “"fish physiology"”.
-
Impact of hypercarbia on juvenile fish physiology, behavior, performance, and acclimation potential
Asian carp are non-native invasive fishes that have quickly become the most abundant fishes in many portions of the Midwestern United States. While Asian carp are currently contained within the Mississippi River basin by a pair of electrified barriers, these fish have the potential to negatively …
-
Osmoregulatory role of the intestine in fish physiology. Evolutionary, environmental, and toxicant implications
The earliest fishes arose circa 500 million years ago (mya) during the Ordovician and persevered throughout several mass extinction events. Unknown fishes' lines became extinct in life history (e.g., conodonts, ostracoderms, acanthodians, placoderms, etc.). It is so that extant lineages may be …
-
ECOLOGICAL AND SOCIOLOGICAL IMPLICATIONS OF TISZA RIVER MINE TAILINGS POLLUTION AND EFFECT OF CHRONIC CADMIUM EXPOSURE ON FISH PHYSIOLOGY
… metals in freshwater can negatively affect fish and other aquatic organisms, raising concerns as to the long-term ecological consequences of the spill. Therefore, the objectives of this dissertation were to describe the ecological implications of metals pollution from mining on freshwater …
-
The role of fish physiology, behaviour, and water discharge on the attraction and passage of adult sockeye salmon (Oncorhynchus nerka) at the Seton River dam fishway, British Columbia
… the connectivity of migration routes for fish. While fishways can provide access between downstream and upstream habitats, it is important that passage can occur with minimal delay, energy expenditure, and physiological stress. The research presented here is based on investigations into …
-
Impact of Ozonation on System Performance and Growth Characteristics of Hybrid Striped Bass (Morone chrysops (f) x Morone saxatilis (m)) Reared in Recirculating Aquaculture Systems
… feed delivered per day)on water quality profile, fish physiology, and growth during a production cycle of hybrid striped bass reared in pilot scale recirculating systems. Nitrogenous wastes and dissolved organic compounds increased linearly (p < 0.01) throughout the trial under both ozonated and …
-
The Gut Microbiome and its Relationship to Migratory Behaviour and Fate in Wild Fishes
… microbial community and differentially impact fish health and fitness. The objective of this thesis was to investigate the hypothesis that the hindgut microbial communities vary relative to migratory behaviour and fate in wild fishes. Specifically, I assessed hindgut microbial communities in …
-
Establishment and Utilization of Tools for Enhancing Foodfish Health
… assist the human demands for seafood so that foodfish supplies can remain sustainable and consistent. Although the fish-farming industry has seen dramatic growth and intensification in recent years, the latter has led to an increase in bacterial diseases and fish health management problems, …
-
The Effects of Chronic Nitrite Exposure on Tissue Morphology and Physiology in Xiphophorus couchianus
… water nitrite concentrations can affect fish physiology. Moreover, there is a lack of current knowledge on how nitrite effects maternal health and, consequently, embryo health and development. Therefore, we used the live-bearing fish species Xiphophorus couchianus as a model organism to …
-
These turbulent times: Interactions between fish and turbulence-generating simulated instream restoration structures and their influence on fish energy use and habitat selection
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
-
Potential influences of climate change and tournament angling on lake ecosystems with a focus on largemouth bass
… negatively influence populations of popular sportfish, as fish are often removed from nesting grounds during the spawning season. While angled individuals often have limited reproductive success, the impact that these tournaments have on population-level recruitment and juvenile size structure is …
-
Immune and Endocrine Modulations Associated with Enhanced Plant-Based Protein Diets Within Freshwater Fish Species
… as a protein replacement for marine-derived fish meal (MDFM) has gained momentum with the potential for aquafeed cost reduction, improved growth performance, and reducing exploitation on wild fish stocks. Further, potential health benefits and optimized production performance resulting from …