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Thèses sur le sujet « Perch fishes »

Auteur : Grafiati
Publié le 6 septembre 2023

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1

Miller, Peggy E. "Diagnosis, prevalence, and prevention of the spread of the parasite Heterosporis sp. (Microsporida: Pleistophoridae) in yellow perch (Perca flavescens) and other freshwater fish in northern Minnesota, Wisconsin, and in Lake Ontario /." Connect to online version, 2009. http://minds.wisconsin.edu/handle/1793/37972.

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2

Gallinat, Michael P. "Population analysis and food habits of the yellow perch, Perca flavescenes (Mitchill), in Indiana waters of Lake Michigan, 1984-86." Virtual Press, 1987. http://liblink.bsu.edu/uhtbin/catkey/483967.

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Yellow perch, Perca flavescens (Mitchill), were collected by trawling and gillnetting in Indiana waters of Lake Michigan near Michigan City, Indiana. Sampling was conducted during the months of June, July and August from 1984 through 1986.Growth rates and length-weight relationships were found to be considerably lower than those reported previously. Males declined 38 mm at age I, 55 mm at age II, 56 mm at age III and 35 mm at age IV comparing 1986 to 1976. Females showed similar declines for the same period at 40 mm for age I, 58 mm at age II, 66 mm at age III and 53 mm at age IV. The primary
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3

Tolentino, Scott A. "An analysis of the relative weight (Wr) of yellow perch from Indiana waters of Lake Michigan, 1984-91." Virtual Press, 1992. http://liblink.bsu.edu/uhtbin/catkey/834610.

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Relative weight (Wr) of yellow perch (Perca flavescens) was evaluated for fish collected from the Indiana waters of Lake Michigan in June, July and August of 1976 and 1984-1991. Computation of Wr was completed for individual fish in 20 mm intervals over the size range from 100-219 mm using Wr = (W/Ws) 100 where W=weight of a fish in grams and Ws=standard weight for a fish of the same length. Length was highly correlated with weight in all years for males, females and sexes combined (r=0.97-0.99). Distributions of predicted weights for fish at 130 mm and 250 mm were at or near modes of the popu
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4

Stettner, Craig R. "An analysis of the population dynamics of the yellow perch in Indiana waters of Lake Michigan." Virtual Press, 1989. http://liblink.bsu.edu/uhtbin/catkey/560277.

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Age, growth, and abundance data were collected on yellow perch, Perca fla vescen, in Indiana waters of Lake Michigan in 1987 and 1988. The data collected were compared to data on yellow perch in Indiana waters of Lake Michigan dating back to 1975.Changes in growth, mortality, and abundance between 1975 and 1988 were clearly illustrated by the data. Growth has decreased; back-calculation indicates that "quality" (> 200 mm) perch in 1975 were about age II, however, "quality" perch in 1988 were over age V. Annual mortality values produced from following a cohort or comparing age classes indicate
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5

Danley, Melody L. M. "Effects of AQUI-S® exposure in 3 species of fish from the Sacramento-San Joaquin Delta, California." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5762.

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Thesis (Ph. D.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains iii, 33 p. : ill. Includes abstract. Includes bibliographical references (p. 17-21).
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6

Wellington, Colleen G. "Effects of turbidity and prey density on the foraging success of age-0 yellow perch (Perca flavescens)." Connect to full text in OhioLINK ETD Center, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1216751590.

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Thesis (M.S.)--University of Toledo, 2008.<br>Typescript. "Submitted as partial fulfillments of the requirements for The Master of Science Degree in Biology (Ecology-track)." "A thesis entitled"--at head of title. Bibliography: leaves 19-23.
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7

Russell, David John. "Some aspects of the biology of the Barramundi, Lates calcarifer (Bloch) in Eastern Queensland." Thesis, Queensland University of Technology, 1990. https://eprints.qut.edu.au/35966/1/35966_Russell_1990.pdf.

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The Barramundi (Lates calcarifer Bloch) is a large, percoid fish, highly valued as a commercial and recreational species. In Queensland, it is distributed in estuaries, coastal habitats and freshwater areas accessible to the sea north from about the Noosa River. This study reports on a three year investigation of the movements, reproduction and growth of barramundi at 15 sites along the east Queensland coast. Of the 524 adult and sub-adult barramundi tagged in coastal areas and estuaries of eastern Queensland between 1981 and 1984, 136 (26%) were recaptured. Most recaptures (75%) occurred wi
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8

Arumugam, Phillip T. "An experimental approach to golden perch (Macquaria ambigua) fry-zooplankton interactions in fry rearing ponds, south-eastern Australia /." Title page, contents and introduction only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09pha793.pdf.

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9

Nagel, Cody J. "Effects of spatial and temporal variation on sampling strategies targeting a community of fishes." Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1391678.

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Yellow perch, alewife, spottail shiner and round goby trawl catch per unit effort (CPUE) was evaluated in the Indiana waters of Lake Michigan from 1984-2006 to determine whether spatial or temporal variation in CPUE for these species occurred. Differences in CPUE among sites or periods were not clearly distinguished within a single sampling year. However, when compared over a 23 year time frame, spatial and temporal differences became evident. To determine the minimum number of samples needed to detect differences among sites and periods, we ran a Monte Carlo simulation using 23 years of empir
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10

Tremblay, Harold. "Effets des variations du niveau d'eau du Lac Saint-Jean (P.Q.) sur la migration saisonnière de quelques espèces de poissons, en particulier de la perchaude (Perca flavescens) dans le petit marais de Saint-Gédéon /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1992. http://theses.uqac.ca.

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11

Ng, Rebecca Yuen Wah 1977. "Life history responses of yellow perch (Perca flavescens) to mass removal." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82300.

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This study evaluates the life history responses of yellow perch to mass removal and the potential for population recovery. We removed approximately 94% of a perch population from Nepawin Lake, a 35 hectare oligotrophic lake in Algonquin Provincial Park, Ontario, as part of a study designed to enhance the recruitment success of brook trout. Several response variables were examined both before and after mass removal: (1) condition, which includes growth, diet and overall condition responses, and (2) reproduction, which includes size at maturity and fecundity. We examine the question of wh
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12

Shortridge, Megan G. Shortridge. "Diet Analysis of Maumee River Fishes using Cytochrome C Oxidase (COI) DNA Metabarcoding ― Insights into a Critical Time of Year." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1471540717.

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13

Schmitz, Mark Harvey. "Comparative Growth of All-Female Versus Mixed Sex Yellow Perch (Perca flavescens) in Recirculating Aquaculture Systems." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/42798.

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Nine, production-scale, recirculating aquaculture systems were utilized to compare the growth parameters between all-female and mixed sex yellow perch stocks. Each system was stocked with 455 fish m-3 and contained one of three different biofilter types: a rotating biological contactor, a trickling filter or a bead filter. The all-female fingerlings (S1) used were originally derived from Lake Mendota, Wisconsin. The mixed-sex fingerlings (S2) used were originally derived from Lake Erie. Temperature and photoperiod (23oC, 16H-L) were maintained at levels for optimal growth. Absolute g
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14

Strand, Åsa. "The growth and energetics of perch (Perca fluviatilis L.) in intensive culture." Umeå : Dept. of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200971.pdf.

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15

Crouch, Ryan T. "Adding value to upground drinking water reservoirs: what makes a good yellow perch (Perca flavescens) fishery?" Bowling Green State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1291841439.

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16

Robak, Enbratt Emelie. "Eurasian perch (Perca fluviatilis) is negatively affected by lake browning in southern Sweden." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42381.

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Climate change and human land use leads to browning of waters with decreased visual conditions. This impacts the fish community via changes in foraging ability and food chain efficiency. There are indications that brownification leads to decreased body size of the Eurasian perch (Perca fluviatilis) and that roach (Rutilus rutilus) are favoured over perch in brown lakes since roach is less dependent on its eyesight when foraging. The aim with this project is to examine how browning impacts the fish community in lakes in the south of Sweden and if browning reduces the size of perch in relation t
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17

Yu, Hao. "Spatial and temporal population dynamics of yellow perch (Perca flavescens) in Lake Erie." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/28586.

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Yellow perch (Perca flavescens) in Lake Erie support valuable commercial and recreational fisheries critical to the local economy and society. The study of yellow perch's temporal and spatial population dynamics is important for both stock assessment and fisheries management. I explore the spatial and temporal variation of the yellow perch population by analyzing the fishery-independent surveys in Lake Erie. Model-based approaches were developed to estimate the relative abundance index, which reflected the temporal variation of the population. I also used design-based approaches to deal with t
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18

Towne, Kristen Marie. "Sex Reversal in Yellow Perch (Perca flavescens) to Produce Functional Neomale Sperm Donors." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu148063934730826.

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19

Degger, Brian. "Fish insulin-like growth factors : their role in growth from a functional perspective." Thesis, Queensland University of Technology, 2001.

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20

Andersson, Magnus. "Selective predation by perch (Perca fluviatilis) on a freshwater isopod, in two macrophyte substrates." Thesis, Linköpings universitet, Ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58018.

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Recent studies show that populations of the freshwater isopod Asellus aquaticus L. can rapidly become locally differentiated when submerged stonewort (Chara spp.) vegetation expands in lakes. In the novel Chara habitat, isopods become lighter pigmented and smaller than in the ancestral reed stands. In this study, I used laboratory experiments to investigate if selective predation by fish could be a possible explanation for these phenotypic changes. Predation from fish is generally considered to be a strong selective force on macroinvertebrate traits. In the first experiment I measured perch (P
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21

Bowden, Brent. "Pharmacokinetic Profiles of Oxytetracycline in Yellow Perch (Perca flavescens) as Determined by Plasma Concentration Following Different Routes of Administration." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31752.

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Oxytetracycline (OTC) is one of two antibiotics currently available and approved by the U.S. Food and Drug Administration for use as a chemotherapeutic agent in food fish and is widely used in the aquaculture industry. Previous pharmacokinetic studies of OTC have been conducted in cold water and warm water species of fish. However, no pharmacokinetic studies have been conducted on a cool water species such as yellow perch (Perca flavescens). The yellow perch is a cool water game and commercial species with high aquaculture potential. The pharmacokinetic profiles of oxytetracycline (OTC) was d
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22

Kwasek, Karolina Anna. "The nutritional and genetic effects on body growth, reproduction and molecular mechanisms responsible for muscle growth in yellow perch Perca flavescens." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1331052970.

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23

Cwalinski, Tim A. "Simulated forecasting of yellow perch (Perca flavescens) relative population density for Indiana waters of Lake Michigan : responses to varying harvest and alewife density." Virtual Press, 1996. http://liblink.bsu.edu/uhtbin/catkey/1036196.

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The yellow perch, (Perca flavescens), is an important commercial and sport fish in Indiana waters of Lake Michigan. The population is currently managed by temporary restrictions of commercial harvest. A computer simulation model was developed to examine the effects of various constant harvest quotas and alewife densities on yellow perch relative numbers.Model design is based on the SLAM II simulation language incorporating a FORTRAN biological subroutine. The age-structured population model includes measured or predicted biological characteristics of the dynamic pool model. Recruitment is base
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24

Gonzalez, Artola Sonia. "Chemical, Physical and Sensorial Compositions of Farmed and Wild Yellow Perch (Perca flavescens), Southern Flounder (Paralichthys lethostigma) and Coho Salmon (Oncorhynchus kisutch)." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/29854.

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This study compared chemical, physical and sensorial properties of wild and farmed fish. Farmed yellow perch fillets showed higher lipid contents (2.78% vs. 1.39%); softer texture (0.41 J/g vs. 0.53 J/g); whiter color (higher L* and lower b*values); different fatty acid profile (higher n-3/n-6 ratio), and mineral composition, when compared to their wild counterparts. Similar amino acid profiles and flavor were found between treatments. Dietary protein by itself influenced color and flavor of yellow perch fillets. Yellow perch fed the highest protein concentrations exhibited higher b* (yell
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25

Hansson, Tomas. "Biomarkers in perch (Perca fluviatilis) used in environmental monitoring of the Stockholm recipient and background areas in the Baltic Sea." Doctoral thesis, Stockholms universitet, Institutionen för tillämpad miljövetenskap (ITM), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8143.

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This thesis reports the results of biomarker measurements in three environmental monitoring projects. In the first project, which was part of the Swedish national environmental monitoring, biomarkers were measured annually in female perch (Perca fluviatilis) in two background areas in the Baltic Sea during 1988–2000, resulting in a unique 13-year series of measurements. The most important results were a strong decreasing temporal trend in the gonadosomatic index (GSI) and a strong increasing temporal trend in the hepatic ethoxyresorufin O-deethylase (EROD) activity in the Baltic Proper. In the
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26

Kemski, Megan Marie. "Fish meal replacement with soybean meal in yellow perch (Perca flavescens) diets: responses of nutritional programming on growth, transcriptome and isoflavone accumulation." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534465279444556.

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27

Almeida, Tainá Rocha de. "Study of gene expression patterns in Eurasian perch (Perca fluviatilis Linnaeus, 1758) eggs related to their quality and to the domestication process." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0288.

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Avec le déclin grandissant des prises de pêches, une augmentation de la production piscicole est attendue pour les prochaines années. Cependant, de nombreux problèmes de reproduction sont observés dans les élevages, principalement une mortalité élevée au début de la vie. Cela concerne principalement des espèces piscicoles pour lesquelles le processus de domestication commence. Mon travail de thèse a visé à mieux comprendre et potentiellement aider à améliorer les performances de reproduction en étudiant le contenu transcriptomique des œufs de perche commune (Perca fluviatilis) en lien avec leu
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28

Marshall, Carina Rynn Ecremen. "Evolutionary genetics of barramundi (Lates calcarifer) in the Australian region." Thesis, Marshall, Carina Rynn Ecremen (2005) Evolutionary genetics of barramundi (Lates calcarifer) in the Australian region. PhD thesis, Murdoch University, 2005. https://researchrepository.murdoch.edu.au/id/eprint/181/.

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Barramundi (Lates calcarifer) is a centropomid teleost with a wide distribution across the Indo Pacific. In Australia, barramundi are native to the tropical zone from Exmouth Gulf in Western Australia, across the northern part of the continent, to the Mary River in Queensland. Barramundi are protandrous hermaphrodites, and are euryhaline, with a catadromous life history. Barramundi are a valuable Australian resource, with important commercial and recreational fisheries and aquaculture production to the value of $11 million dollars per year. Recent declines in the availability of the fish in so
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Marshall, Carina Rynn Ecremen. "Evolutionary genetics of barramundi (Lates calcarifer) in the Australian region." Marshall, Carina Rynn Ecremen (2005) Evolutionary genetics of barramundi (Lates calcarifer) in the Australian region. PhD thesis, Murdoch University, 2005. http://researchrepository.murdoch.edu.au/181/.

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Barramundi (Lates calcarifer) is a centropomid teleost with a wide distribution across the Indo Pacific. In Australia, barramundi are native to the tropical zone from Exmouth Gulf in Western Australia, across the northern part of the continent, to the Mary River in Queensland. Barramundi are protandrous hermaphrodites, and are euryhaline, with a catadromous life history. Barramundi are a valuable Australian resource, with important commercial and recreational fisheries and aquaculture production to the value of $11 million dollars per year. Recent declines in the availability of the fish in so
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30

Nyboer, Elizabeth. "Movement, home range, and ecological divergence in the commercially fished Nile perch in Lake Nabugabo, Uganda." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114515.

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The large piscivorous Nile perch (Lates niloticus) was introduced to the Lake Victoria basin in the 1950s and 1960s and eventually became one of the most valuable commercial species of East Africa's inland fisheries. Intense fishing-induced mortality may be contributing to dramatic ecological change in this species (reductions in body size and biomass; shifts in distribution and diet), and reinforcing patterns of ecological divergence in some lakes in the region. In this thesis I use an evolutionary ecology approach to explore habitat associated ecological divergence in the Nile perch in Lake
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31

Hancock, Andrew (Boze) T. "The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery." University of Western Australia. School of Animal Biology, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068.

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The Roe’s abalone (Haliotis roei) fishery near Perth, Western Australia, is uniquely accessible, and highly vulnerable to overexploitation. The sustainability of this intensively utilized fishery requires robust assessment. To facilitate an assessment, this research aimed to provide rigorous and detailed biological information with appropriate interpretation. Four critical aspects of the species’ biology and population dynamics were investigated: (1) the stock structure; (2) the recreational catch; (3) an appropriate growth curve and description of size at age; and (4) abundance measures again
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32

Kiggundu, Rose. "Innovation systems and development the journey of a Beleaguered Nile Perch Fishery in Uganda /." Maastricht : Maastricht : Universitaire Pers Maastricht ; University Library, Universiteit Maastricht [host], 2006. http://arno.unimaas.nl/show.cgi?fid=5736.

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33

DeKluyver, Tertius Vitus. "Development of larval barramundi under conditions of intense culture." Thesis, Queensland University of Technology, 1998.

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34

Farmer, Troy M. "Climate Change Effects on Lake Erie Yellow Perch Reproduction and Recruitment." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1386038579.

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35

Bodamer, Scarbro Betsy L. "The Physiological and Behavioral Responses of Yellow Perch to Hypoxia." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1396521163.

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36

Harris, Johnathan. "Impacts of the Invasive White Perch on the Fish Assemblage of Kerr Reservoir, Virginia." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/32914.

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The white perch (Morone americana) is a highly successful invader of freshwater systems, with negative consequences to some resident fishes. White perch are ovivores and may prey upon as well as compete with juvenile sportfishes. Since 1988, an introduced population of white perch has proliferated in the 19,790-ha Kerr Reservoir, NC-VA, potentially threatening popular sport fisheries for largemouth bass (Micropterus salmoides), crappie (Pomoxis spp.), and self-sustaining striped bass (Morone saxatilis). Trophic relationships between white perch and resident sportfish were examined in the Ke
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37

Hancock, Andrew. "The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery /." Connect to this title, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068.

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38

Hancock, Andrew T. "The biology and fishery of Roe's abalone Haliotis roei Gray in south-western Australia, with emphasis on the Perth fishery." Connect to this title online, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0068/.

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39

Kahwa, David. "Gametogenesis, gonadal recrudescence, restraint and spawning patterns in Nile perch, Lates niloticus (Linnaeus, 1758)." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1001834.

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The Nile perch, Lates niloticus (Linnaeus, 1758), is a predacious freshwater fish widely distributed throughout the Afro-tropic eco-zone. The species was introduced to Lake Victoria in the early 1950s and by 1980 it had dominated the fisheries of Lake Victoria. This was followed by a dramatic decrease in the Nile perch fisheries production due to uncontrolled exploitation. The purpose of this thesis is to provide fundamental knowledge that can be applied in aquaculture and fisheries management through the study of the reproductive biology of L. niloticus. The research was aimed at the studying
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40

Headley, Heath C. "Fluctuating abundance of yellow perch and their relationship to growth in southern Lake Michigan, 1984-2004." Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1339149.

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The relationship between yellow perch Perca flavescens abundance and growth rates were evaluated in the Indiana waters of Lake Michigan from 1984 to 2004. Relative abundance values were taken from trawl catch per unit effort (CPUE), while growth rates were determined by back-calculation. Abundance CPUE during the mid 1980's, was approximately one order of magnitude higher when compared to the 1990 to 2004 period. Growth rates were inversely related to relative abundance and were sexually dimorphic, with females growing faster than males. Regression analysis indicated approximately half of this
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41

Allen, Paul J. "A computer simulation model for the yellow perch population in the Indiana waters of Lake Michigan." Virtual Press, 2000. http://liblink.bsu.edu/uhtbin/catkey/1177967.

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A computer simulation model was developed to examine the effects of various levels of alewife densities, harvest, and bycatch rates on yellow perch Perca flavescens relative densities in Indiana waters of Lake Michigan. The model utilized STELLA® Research software to develop the age-structured population model to include measured or predicted biological characteristics of density-dependent growth, recruitment, and mortality.The model was validated by simulating historically documented yellow perch catch per unit effort (CPUE) from 1984 - 1998. A strong linear relationship (R2= 0.70) between th
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42

Tonkin, Zeb D. "From processes to populations: understanding the drivers and dynamics of Macquarie perch Macquaria australasica populations." Thesis, Griffith University, 2019. http://hdl.handle.net/10072/388980.

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This thesis is presented as a series of journal publications that have been published or are in review. The overall structure of the thesis includes; a brief introduction on the processes and dynamics of fish populations; an introduction to the study species, Macquarie perch (Macquaria australasica); five data chapters as publications which relate to specific population processes and population dynamics, and finally, a synthesis of these chapters and concluding remarks. The publication status of each chapter is provided at the beginning of the chapter together with detailed information on auth
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43

Thomas, Nathan D. "Trawl and gill net selectivity of yellow perch in southern Lake Michigan, 1993-2006." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1366503.

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Selectivity of trawl and experimental gill nets was determined for yellow perch taken from southern Lake Michigan in 1993 to 2006. Gill nets were comprised of 51-, 64-and 76-mm size mesh and showed female modal lengths of 205-, 245-, and 295-mm, respectively, while values for males were 200-, 230-, and 267-mm. Differences between females and males increased with mesh size and was significant. Comparison of nine anterior morphometric features of female and male fish indicated no differences in shape were identified that would cause the disparity in selectivity. Rather, differences in male and f
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44

Rydell, Joseph J. "The influence of abiotic factors on gill-net catch rates and the evaluation of mortality rates for yellow perch in southern Lake Michigan." Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1391675.

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I determined differences in yellow perch gill-net catch-per-unit-effort (CPUE) at two depths (10 and 15 m) in the Indiana waters of Lake Michigan during June, July, and August from 1989 to 2006. I evaluated the abiotic factors of water temperature, water clarity, wave height, and wind direction to determine whether they influence the differences in yellow perch CPUE. This study suggests that yellow perch in southern Lake Michigan may select habitat based on water temperature during the summer, moving in response to thermocline changes. We also evaluated mortality rates for two distinct periods
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Ingram, Brett A. "Rearing juvenile Australian native percichthyid fish in fertilised earthen ponds." Connect to this title online, 2001. http://tux.lib.deakin.edu.au/adt-VDU/public/adt-VDU20050418.172221/.

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Mlolwa, Mwanaidi Ramadhani. "Application of Hazard Analysis Critical Control Points (HACCP) in improving the global competitiveness of the fish industry with special reference to the Nile Perch (Tanzania)." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51618.

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Thesis (MPhilAgric)--Stellenbosch University, 2000.<br>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 failure of the November 1999 World Trade Organisation Meeting at Seattle to reach any agreement, has ag
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Berkelman, James. "Habitat Requirements and Foraging Ecology of the Madagascar Fish-Eagle." Diss., Connect to this title online, 1997. http://scholar.lib.vt.edu/theses/available/etd-5852152749721461/.

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Ragnarsson, Henrik. "Biological Diversity of Fish and Bacteria in Space and Time." Doctoral thesis, Uppsala University, Department of Ecology and Evolution, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8494.

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<p>Biological diversity is controlled by an array of factors and processes all active at different spatial and temporal scales. Regional factors control what species are available to occur locally, whereas the local factors determine what species are actually capable of colonizing the locality.</p><p>I have investigated how these local and regional factors affect species richness and diversity, mainly of fish in Swedish lakes and in order to assess the impact of dispersal mode one study on bacteria was also performed. In addition, potential first steps towards speciation were investigated in p
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Peich, Marco Polo [Verfasser], J. [Akademischer Betreuer] Buchmann, I. [Akademischer Betreuer] Classen-Linke, and B. [Akademischer Betreuer] Fischer. "Einflüsse ubiquitär vorkommender Xenobiotika auf humane immortalisierte endometriale Epithelzellen (hTERT-EEC B37) / Marco Polo Peich. Betreuer: J. Buchmann ; I. Classen-Linke ; B. Fischer." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2011. http://d-nb.info/102520302X/34.

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Kahl, Uwe. "Dominanzverhältnisse, Interaktionen und räumliche Verteilung von Barsch, Plötze und Seeforelle in der mesotrophen Talsperre Saidenbach." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2003. http://nbn-resolving.de/urn:nbn:de:swb:14-1071662087625-16496.

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Im Rahmen der vorliegenden Arbeit wurden die in der mesotrophen Talsperre Saidenbach bedeutendsten Fischarten (Plötze, Barsch, Seeforelle) bezüglich ihrer Populationsstruktur, der Nahrung und der Habitatnutzung untersucht. Ziel war einerseits, die Analyse der Ausgangssituation und der Umsteuerungsphase bezüglich biomanipulationsbedingter Effekte, um einen späteren Vorher-Nachher-Vergleich innerhalb des Ganzseenexperimentes zu ermöglichen. Andererseits sollte untersucht werden, ob die Hypothese des konkurrenzbedingten juvenilen Flaschenhalses der Barsche auch auf große und tiefe Gewässer übertr
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