Borgeson, Tracy L

The effect of fractionating flax, peas and canola on the digestibility of these ingredients in <i>Nile tilapia</i> was determined. Dehulling of flax, and processing peas and canola to pea protein concentrate and canola protein concentrate, resulted in significant increases in the energy and dry matter digestibilities of these products (P < 0.05). Protein digestibility was significantly improved by dehulling flax but there were no differences in the protein digestibilities of pea, canola and thei...

Larsson, Magnus

The aim of this study was investigate if increasing total organic carbon (TOC) affects the growth rate and biomass of perch (Perca fluviatilis) and biomass of roach (Rutilus rutilus). The ongoing climate change affects the climate by increasing annual mean temperature and precipitation. The runoff to surface waters will increase, which also has the consequence that the export of terrestrial organic matter (TOM) and nutrients to surface waters will increase. Increasing of TOM into the surface wat...

Ward, Matthew Norman

Comparisons of functionally important changes at the molecular level in model systems have identified key adaptations driving isolation and speciation. For example, recent studies suggest mutations in opsins, the genes that encode retinal photoreceptors, influence colour-based female mate choice and have, thereby, contributed to the radiation of African cichlids. To test the hypothesis that the evolution of elaborate colouration in guppies (Poecilia reticulata) is also associated with opsin gene...

De Aguiar Saldanha Pinheiro, Ana Cristina <1978>

The increase in aquaculture operations worldwide has provided new opportunities for the transmission of aquatic viruses. The occurrence of viral diseases remains a significant limiting factor in aquaculture production and for the sustainability. The ability to identify quickly the presence/absence of a pathogenic organism in fish would have significant advantages for the aquaculture systems. Several molecular methods have found successful application in fish pathology both for confirmatory diagn...

Mogashoa, M. E.

Thesis (M.Sc. (Physiology)) --University of Limpopo, 2015 / Water is an essential and yet scarce resource, which has a vital role for human use and also serve as a habitat for numerous organisms in aquatic environments. Despite its scarcity there have been many reports indicating that it is continually polluted by domestic, agricultural, mining and other anthropogenic activities; subsequently affecting the health of organisms residing in such water bodies. Fish have been selected as the bio...

Cloos, Michael Ethan

The Fish Creek-Vallecito Basin exposes an archive of sediment related to early rifting of the Gulf of California beginning at 8.0 Ma followed by Colorado River delta progradation from 5.3-3.0 Ma. Mio-Pliocene deposits from the Fish Creek-Vallecito Basin of southern California and a sample from the modern Colorado River delta were analyzed through detrital zircon U-Pb (n=1996) and (U-Th)/He (n=280) double-dating in order to better constrain sediment provenance, hinterland exhumation, and Colorado...

Angosto Bazarra, Diego

In the present thesis, we have studied the evolution of the inflammasome functions in fish. We observed that inflammasome and caspase-1 trigger pyroptotic cell death but they are not involved in the processing of IL-1β. In addition, we have developed a zebrafish-Salmonella infection model to study the role of the inflammasome in the clearance of intracellular bacteria. Finally, we have identified and characterized a new member of the IL-1 family, IL-1Fm2, which is exclusively present in most evo...

Fulton, Sarah

Seafood is a global commodity of growing importance. The present study examined contributions to global warming from three significant seafood product chains. Each of these systems were relatively fuel efficient compared to fuel intensities reported for other fisheries globally. As such, processing and transportation phases made relatively important contributions to the overall global warming impact of these systems. Energy inputs to processing were important, as was the emission-intensity of th...

Bezte, Candi Lynne

White suckers captured downstream from the Pine Falls pulp and paper mill exhibited an increase in liver somatic index and an induction of the mixed-function oxygenase (MFO) system and decreases in plasma testosterone, fecundity and hepatic stores of vitamins A and E. The MFOs were positively correlated with liver somatic index and negatively correlated with hepatic vitamins, condition factor and most reproductive indices; hepatic vitamins were positively correlated with condition factor and rep...

Boucher, Eric Louis

More effective ways to manage mixed populations of maturing and non-maturing Atlantic salmon are needed, and a method to predict the percentage of maturing salmon would be ideal. Maturing fish are known to swim slower and have a larger condition factor (K) than non-maturing fish, and if differences are large, bimodality could be evident in swimming speed and K factor data collected from mixed populations, and used to predict the grilse (maturing salmon) percentage. To test this hypothesis, ...

Ciampa, Alessandra <1971>

This study focuses on the use of metabonomics applications in measuring fish freshness in various biological species and in evaluating how they are stored. This metabonomic approach is innovative and is based upon molecular profiling through nuclear magnetic resonance (NMR). On one hand, the aim is to ascertain if a type of fish has maintained, within certain limits, its sensory and nutritional characteristics after being caught; and on the second, the research observes the alterations in th...

Siddall, Margaret Isabel.

Livestock and poultry nutritionists have long realized the importance of rations containing protein from animal sources, for rapid growth and high hatchability. Recently it has been discovered that one of the values of animal proteins lies in their supply of vitamin-like growth factors, which are found to be lacking in plant proteins. [...]

Yilmaz, Duygu

Flavonoids, present in fruits, vegetables and beverages derived from plants, have been described as health-promoting, disease-preventing dietary supplements, and have activity as cancer preventive agents. The cancer protective effects of flavonoids have been attributed to a wide variety of mechanisms, including modulating enzyme activities resulting in the decreased carcinogenicity of xenobiotics. Cytochrome P4501A1 (CYP1A1) is a Phase I enzyme which is known to be involved in the activation of ...

Wagner, Günter P., Takahashi, Kazuhiko, Lynch, Vincent, Prohaska, Sonja J., Fried, Claudia, Stadler, Peter F., Amemiya, Chris

In this study the molecular evolution of duplicated HoxA genes in zebrafish and fugu has been investigated. All 18 duplicated HoxA genes studied have a higher non-synonymous substitution rate than the corresponding genes in either bichir or paddlefish, where these genes are not duplicated. The higher rate of evolution is not due solely to a higher non-synonymous-to-synonymous rate ratio but to an increase in both the non-synonymous as well as the synonymous substitution rate. The synonymous rate...

Daniela da Silva Lima

No description available.

Kemski, Megan Marie

No description available.

Přikryl, Tomáš

RESEARCH ON CENOZOIC FISH FAUNAE OF THE SELECTED LOCALITIES OF THE CZECH REPUBLIC The submitted PhD thesis is presented as a collection of commentaries of fish faunas and its paleoecology at 10 selected localities of Czech Republic. The results were supported by specimens also from other geographical regions. The fish faunae were studied on following localities: Kelč, Rožnov pod Radhoštěm, Litenčice, Krumvíř, Vážany nad Litavou, Strachotín, Opava - Kateřinky, Kučlín u Bíliny, Byňov and Bechlejov...

Ana Isabel dos Santos Couto

No description available.

João Vítor Torres Reis

No description available.

Carolina Isadora Ferreira Salgado Vilaca Barroso

No description available.

TAN, SOOK-MUAR, 陳抒漫

碩士 / 國立臺灣藝術大學 / 中華藝術全英語碩士學位學程班 / 106 / This thesis focuses on my personal creation, presenting my background of growth and the influence of my learning experience on creation. Starting from academy, opening the door of art for me, academy has become an important stage of enlightenment, and then how did I turn from painting to three-dimensional sculpture? With the conversion from the adjustment of the mentality at university to the value reconstruction at graduate institute, how did the course in...

Benazza, Achwak

Les zones intertidales jouent un rôle essentiel dans le renouvellement des ressources halieutiques. De nombreuses espèces marines, poissons comme macro-crustacés ont un cycle de vie qui leur impose de passer au cours de leur période juvénile par ces écosystèmes. De par sa position à l'interface terre-mer, la zone intertidale est soumise à d'importantes fluctuations des facteurs environnementaux. Cependant, la façon dont cet écosystème répond aux forçages environnementaux, notamment en ce qui con...

Mercury is a naturally occurring, pervasive element in the environment, with many chemical forms. Toxicology, environmental cycling and retention, and production of mercury by industrial processes and natural and manufactured emissions of mercury chemical species are the foremost concerns pertaining to this element and its congeners. Organomercury forms, particularly methylmercury, are some the most potent neurotoxins to animals, including humans. Therefore, the understanding of cycling, biochem...

Pourreau, Catherine Nancy

No description available.

Izquierdo-Gómez, David

No description available.

Martínez Gómez, Concepción

No description available.

Bender Gomes, Mariana

Comprendre les mécanismes d'assemblages des communautés est l'une des principales questions en écologie et biogéographie. Elle est également essentielle pour prédire les conséquences des changements globaux sur la distribution future de la biodiversité. Les communautés écologiques sont la résultante de facteurs interagissant à plusieurs échelles spatiales et temporelles. En outre, ces processus peuvent affecter différemment les composantes taxonomique, fonctionnelle et phylogénétique de la biodi...

Mercury (Hg) in the environment has deleterious ecological and health affects for humans and wildlife and is primarily transferred to humans through the consumption of marine biota (USEPA, 2001). These ecological and health concerns are exacerbated by the production of methylmercury (CH3Hg+; MMHg) in aquatic ecosystems. Sulfur isotopes (δ34S) are an indicator of the strength of sulfate reduction associated with MMHg production. In chapter 1, we assessed the re...

Plant cytogenetics has continued to flourish and make essential contributions to genomics projects by delineating marker order, defining contig gaps, and revealing genome rearrangements. Here we review the field of plant cytogenetics from its conception through the eras of molecular biology and genomics (Chapter 1). Significant advances in chromosome preparation, such as extended fiber-FISH, have greatly increased the axial resolution limits, while imaging and signal amplification technologies h...

Large-scale cytogenetic mapping in maize has been a major challenge primarily due to fact that the maize genome has a low gene density and an abundance of repetitive sequence elements. Using a unique combination of biological and genome resources for maize, sorghum, and oat, we have solved this problem and produced a cytogenetic FISH map of maize pachytene-stage chromosome 9 with 32 maize markers. The genetically mapped markers used are distributed along the linkage maps at an average spacing of...

Winkler, Alexander Claus

The leerfish (Lichia amia), is a large, primarily coastal recreational fish species with a distribution extending from Portugal down the west coast of African to southern Mozambique. Owing to its large size (30 kg), strong fighting abilities and habit of taking surface artificial lures, this species has taken on an iconic stature among shore-based recreational anglers. Its reputation has made it an important angling tourism species that makes an important contribution to the economy of developin...

Zhang, Xiang, 1969-

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2001. / Includes bibliographical references. / In part I of the thesis, a canonical problem of three dimensional surfactant hydrody namics, the three-dimensional laminar interaction between a clean or contaminated free surface and a vortical flow underneath is considered. Initially, the vortical flow is in the form of two modulated finite-core vortex tubes parallel to the free surface. The vortex tubes break down...

Jimu, Tawanda

Magister Philosophiae - MPhil (LAS) (Land and Agrarian Studies) / This study assessed the type, extent and modalities of intra-regional fish trade between South Africa and other SADC countries. Cross-border fish trade and its importance in boosting intra-regional fish trade between South Africa and the rest of SADC is poorly documented and as such, little systematic effort has been made to understand its type, extent and modalities in order to address the problems of those engaged in the ac...

Radev, Zlatko

L'application des techniques de séquençage à haut débit dans les dernières années a conduit à l'obtention de la séquence de génomes complets de plusieurs organismes. Le développement de nouveaux outils de génétique inverse était donc souhaitable afin de faire un usage optimal des données accumulées. Les nucléases hautement spécifiques représentent un outil unique pour induire des modifications ciblées du génome in vivo. L'induction d'une cassure double brin dans l'ADN est réparée soit par la voi...

Boyd, Danielle Winona

Includes bibliographical references. / Standard weight (Ws) equations were developed and relative weight (Wr) indices calculated for both shallow-water (Merluccius capensis) and deep-water (M . paradoxus) Cape hake. The aim was to provide fixed baselines and Wr indices to aid understanding of temporal and spatial variability in fish condition . Baselines were calculated using the empirical percentiles (EmP) method applied to length (L) ? weight (W) data collected by research surveys on the South...

Fornander, David Eric

Since the mid 1900s Pacific salmon have declined at an alarming rate. The burden for conserving this regional icon has been placed primarily upon the US Forest Service, whose mandates often times collide with state and private interests and whose actions frequently impact local communities. How much affect such small-scale focus actually has on the recovery of salmon is a topic of much debate.My research investigates the highly regulated industry of commercial floatboating and how it may imp...

Ming-Yi Chien, 簡明毅

碩士 / 國立臺灣大學 / 工程科學及海洋工程學研究所 / 99 / The study describes a passive localization algorithm for a robotic fish by utilization of a transducer array attached on sides of body. Localization is performed in the water tank by measuring the signal from fixed sound sources to estimate the relative position of the robot with respect to the source. The algorithm requires synchronously receiving VHF array signal with large amount of data stream, a FPGA(Field Programmable Gate Array) processor is used to coll...

Peterson, Zachary James

Master of Science / Division of Biology / Martha E. Mather / Understanding how and why fish distribution is related to specific habitat characteristics underlies many ecological patterns and is crucial for effective research and management. Blue Catfish, Ictalurus furcatus, are an important concern for many fisheries agencies; however, lack of information about their distribution and habitat use remains a hindrance to proper management. Here, over all time periods and across months, I quantified...

Fencl, Jane S.

Master of Science / Division of Biology / Martha E. Mather / In contrast to well documented adverse impacts of large dams, little is known about how smaller low-head dams affect fish biodiversity. Over 2,000,000 low-head dams fragment United States streams and rivers and can alter biodiversity. The spatial impacts of low-head dams on geomorphology and ecology are largely untested despite how numerous they are. A select review of how intact low-head dams affect fish species identified four method...

YU-HO LIN, 林育禾

博士 / 國立中山大學 / 海洋生物科技暨資源學系研究所 / 102 / In this study, we first examined the feasibility of establishing various lines of transgenic fluorescent zebrafish by combining the Tol2 transposon system with our newly-constructed fluorescent protein expression plasmids, in which EGPF or DsRed are expressed under the control of a 2.5 kb mylz2promoter. Of these plasmids, the construct containing the fluorescent EGFP gene was subsequently used to investigate the suitability of in vivoelectroporation for gene ...

Goosen, Neill Jurgens

Thesis (PhD) -- tellenbosch University, 2014. / ENGLISH ABSTRACT: This study is part of the continuing global research effort dedicated to finding alternative aquafeed ingredients, which not only replace fish meal and fish oil as sources of essential nutrients in aquafeeds, but also provide specialist functional properties when included in feeds. Due to constraints in supply of fish meal and fish oil originating from wild capture fisheries, the continually growing aquafeed industry requires ...

Mlolwa, Mwanaidi Ramadhani

Thesis (MPhilAgric)--Stellenbosch University, 2000. / ENGLISH ABSTRACT: Not only have non-trade barriers been applied in Europe and the US to agricultural products from developing countries, but protective policy is also likely to continue. Owing to the omission of fish from the discussions in the final round of agreement at Uruguay, where tariffs were significantly reduced for other agricultural products, the fish industry has not had any non tarriff barier relief in recent years. The failu...

De Swardt, Jürgen Johannes Streicher

Following the construction of the Pongolapoort Dam in 1974, the potential impacts on the lower Phongolo River and floodplain due to alterations in the natural flow regime have caused concerns. Fish communities and population structures are directly influenced by these alterations. The only protected section of the Phongolo River is a 15 km reach and its associated pans that flow through the Ndumo Game Reserve. Historic data shows that the community and population structure of the fish in the Pho...

McHugh, Kyle Joseph

The conservation of biodiversity and endemism in South Africa’s freshwater aquatic ecosystems is a high priority, particularly in the Cape Floristic Region. However, the perception that South Africa lacks suitable fish species for recreational angling, aquaculture and biological control, led to the widespread introduction and use of alien fish species. As a result, formal stocking programs have seen the introduction of five of the world’s top 100 invasive species into South Africa (Dudgeon et al...

Wu, Chi-Wu, 吳繼武

碩士 / 國立交通大學 / 生醫工程研究所 / 100 / In this study, the autofluorescence emitted from fish tissue is measured as an optical evaluation index for freshness identification. Because of the time-consuming and invasive nature of the traditional method, it causes property loss in the fishery and food industries. A quick and noninvasive method is necessary. The result can be applied to the fishery and food industries for quality control. With the quickness of the fluorescence technique, it could improve the p...

Mketsu, Qayiso K

Includes abstract. / Includes bibliographical references (leaves 59-65). / Stomach contents of sardine (Sardinops sagax), anchovy (Engraulis encrasicolus), west coast redeye (Etrameus whiteheadi) and east coast redeye (E. teres) were collected from presumed mixed shoals off South Africa's east coast. The stomach contents were analysed to 1) determine the diet composition of each species in terms of dietary carbon, 2) assess whether resource partitioning by prey type and/or prey size occurs amont...

Paretti, Nick

We exposed a native endangered species, bonytail chub (Gila elegans), to graded concentrations of secondarily-treated effluent. At the end of each treatment period, we collected water from all raceways and samples were analyzed for the presence of 83 organic wastewater compounds. We extracted blood plasma from control and treatment fish in each raceway and samples were analyzed for hormones, 17β-estradiol and 11-ketotestosterone, and the egg yolk protein, vitellogenin.17β-estradiol concentrat...

Schietecatte, Liesbet

Bibliography: leaves 141-184. / In medieval archaeology, diet is often inferred from excavated faunal remains. Recently, researchers have started to apply stable isotope techniques to diet reconstruction. Most studies have focused on the analysis of human bone collagen. In this research, human skeletal remains were not available, so ¹³C/¹²C and ¹⁵N/¹⁴N analyses were made on animal bones and soil samples from a medieval fisherman's village, Walraversijde. In addition, samples were analysed from fo...

Nimick, Aileen Margaret

<p> The Magnuson-Stevens Fishery Conservation and Management Act (MSA; Magnuson-Stevens Fishery Conservation and Management Act. 2014. (16 U.S.C. 1801&ndash;1891(d)) mandates that fisheries management councils in the United States prevent adverse, or &ldquo;more than minimal and not temporary&rdquo;, fishing effects to essential fish habitat (EFH) to the extent practicable. Councils were left to decide what effects qualified as &ldquo;minimal&rdquo; and &ldquo;temporary&rdquo;. The lack of expli...

Beskid Olena, Olena

No description available.