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The effects of tournament fishing on dispersal, population characteristics, and mortaltiy of black bass in Lake Martin, AlabamaRicks, Benjamin Riddick. Maceina, Michael J. January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Includes bibliographic references.
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Tournament-associated mortality and the effects of culling in Wisconsin black bass (Micropterus spp.) tournaments /Williamson, Craig W. January 2007 (has links) (PDF)
Thesis (M.S.)--University of Wisconsin--Stevens Point, 2007. / Submitted in partial fulfillment of the requirements of the degree Master of Science in Natural Resources, College of Natural Resources. Includes bibliographical references (leaves 75-81).
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Factors related to angler compliance in a black bass fishery, James River, Virginia /Kokel, Ron W., January 1991 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 87-91). Also available via the Internet.
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Black bass (Micropterus spp.) in the Olifants- Doorn River system: distribution, distribution barries, predatory impact and managementvan der Walt, Johannes Adriaan January 2014 (has links)
Thesis submitted in partial fulfilment of the requirements for the degree
Master of Technology: Nature Conservation
in the Faculty of Applied Sciences
at the Cape Peninsula University of Technology / In the Cape Floristic Region the Olifants- Doorn River (ODR) system is a known biodiversity hotspot in terms of endemic freshwater fish. Eight of the 10 described native freshwater fish species are endemic to this river system. One of the main threats to these fish is predation by introduced predatory fishes. Three species of alien invasive black bass (Micropterus salmoides, Micropterus dolomieu and Micropterus punctulatus) were introduced into the ODR system during the 1930s but prior to this study, their distribution and impacts had never been quantified on a system-wide basis. This study aimed to clarify the current distribution, distribution barriers, predatory impact and best management options for black bass in the ODR system. This was achieved by conducting a system-wide survey of 578 km of stream covering 41 tributaries in the ODR system. Black bass presence was tracked upstream within each tributary to its uppermost distribution point where physical barriers preventing further spread were identified and described. Fish species composition, abundance and size were recorded directly above and below these barriers to quantify black bass impact on the native fish.
This research demonstrated that since introduction, natural and human assisted dispersal has facilitated not only the establishment of black bass in the Olifants and Doring main streams but also facilitated the invasions into 22 tributaries. Based on survey results it was estimated that 81.5 % of the ODR system that was previously occupied by native cyprinids is now invaded by black bass. Assessments of native fish abundance and size distribution above and below black bass invasion barriers demonstrated that in invaded tributaries only adults of larger cyprinids (Labeo seeberi, Labeobarbus capensis and Barbus serra) were able to co-occur with black bass species. Smaller fish such as juvenile L. seeberi, L. capensis and B. serra and native minnows (Barbus calidus, Pseudobarbus phlegethon and Barbus anoplus) were absent from the black bass invaded reaches. The findings of this catchment scale study are consistent with findings from other studies in the region. As a result, most native fishes are now restricted to streams above the natural barriers that limit the upstream invasions of black bass. Black bass eradication from invaded reaches is therefore necessary for habitat restoration. Effective eradication will however depend on the presence of barriers to prevent re-invasion from downstream sources.
To better understand what constitutes the nature of such barriers, this study characterised the natural barriers that inhibited black bass invasions in 17 tributaries. Natural barriers comprised of 15 waterfalls, two cascades and one chute ranging in height from 0.49 m to 3.5 m with an average vertical drop of 1.21 ± 0.67 m. These findings suggest that black bass have poor jumping abilities and the recommended height of artificial barriers as part of a black bass management program should be between 80 and 100 cm depending on the size of the tributary. As a result, the presence of natural barriers or the construction of artificial barriers to prevent black bass invasions is considered a vital component of native fish conservation projects.
Finally, the study assessed the feasibility of black bass eradication from the 22 invaded tributaries in the ODR system based on eight criterion covering aspects of biological, physical, anthropogenic and logistical importance. This assessment showed that effective eradication was most likely only feasible in seven tributaries. Prioritisation of these seven tributaries for black bass eradication based on the threatened status of the resident native species, the land-use in the respective catchments and the tributary length available for rehabilitation indicate that the Breekkrans, Biedouw and Thee Rivers should receive the highest priority.
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Movement, dispersal, and home ranges of tournament displaced largemouth and spotted bass in Lake Martin, AlabamaHunter, Ryan Wayne, Maceina, Michael J. January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Vita. Includes bibliographic references (p.57-62).
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Effects of striped bass stocking on largemouth bass and spotted bass in Lewis Smith Lake, AlabamaShepherd, Michael David, Maceina, Michael J. January 2008 (has links) (PDF)
Thesis (M.S.)--Auburn University, 2008. / Abstract. Vita. Includes bibliographical references (p. 64-75).
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The Seasonal Cycle in the Testis of the Large-Mouthed Black Bass, Huro Salmoides, (Lacepede)Johnston, Perry Max 08 1900 (has links)
Study to determine the seasonal changes in histological and cytological structures in the testis of Huro Salmoides (Lacepede), the large-mouthed black bass.
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Exigência em lisina pelo "black bass" Micropterus salmoides. / Lysine requirements of largemouth bass Micropterus salmoides.Dairiki, Jony Koji 08 July 2005 (has links)
Os elevados custos atribuídos à nutrição na piscicultura ligam a eficiência alimentar ao sucesso da atividade e à redução do impacto ao meio ambiente. Estudos sobre a nutrição e determinação de exigências nutricionais em aminoácidos são, portanto, ferramentas importantes para a consolidação da piscicultura comercial racional e com viabilidade econômica. A determinação da exigência em lisina para o "black bass" Micropterus salmoides foi feita em ensaio de dose-resposta e os dados coletados foram analisados por meio de três modelos estatísticos: regressão polinomial, regressão segmentada e modelagem matemática específica, para estimar a utilização e exigência dos aminoácidos. Foi utilizada a relação A/E = [(aminoácido essencial ÷ total de aminoácidos essenciais + cistina + tirosina) x 1.000], para estimar as exigências nutricionais dos demais aminoácidos essenciais em relação à lisina determinada no experimento dose-resposta. As unidades experimentais foram constituídas por lotes de 25 alevinos de black bass (1,29 ± 0,03 g; 4,35 ± 0,17 cm) condicionados a aceitar ração seca, alojados em gaiolas de PVC atóxico (abertura de malha 5 mm) com capacidade de 60 L e instaladas em caixas de polipropileno com capacidade de 1.000 L, com troca parcial de água num sistema fechado de recirculação e aeração. Os tratamentos correspondiam aos níveis crescentes de lisina: 1,0; 1,5; 2,0; 2,5; 3,0 e 3,5% na dieta n=4), num delineamento inteiramente aleatorizado (DIA). O modelo estatístico da regressão segmentada foi o modelo mais apropriado para determinação da exigência dietética de lisina para os alevinos de black bass em experimento dose-resposta. A exigência dietética em lisina para peso final, ganho de peso e taxa de crescimento específico foi de 2,1% da dieta ou 4,9% da proteína dietética. A exigência dietética de 1,69% de lisina na dieta ou 3,9% de lisina na proteína condicionou o melhor índice de conversão alimentar. O uso do perfil de aminoácidos corporais do black bass foi adequado como referência para estimar as exigências nutricionais de aminoácidos. / Adequate nutrition of fish stocks interconnects fish feeding efficiency, profitability and mitigation of environmental impact of fish farming. Knowledge on amino acids requirement of farmed fish boosts rationalization and profitability of fish farming systems. This study compares estimation of amino acids requirements of largemouth bass Micropterus salmoides from data of lysine dose-response trials, analyzed through different statistical models: polynomial regression, broken-line analysis and specific mathematical modeling. Amino acids requirements were estimated through the A/E relationship [A/E = (essential amino acid ÷ total essential amino acids + cystine + tyrosine) x 1.000]. Groups of 25, feed-conditioned largemouth bass fingerlings (1.29 ± 0.03 g; 4.35 ± 0.17 cm), were stocked in 60-L cages (5 mm mesh) placed in 1,000-L plastic, indoor tanks, closed circulation system, and fed diets containing 1.0, 1.5, 2.0, 2.5, 3.0, or 3.5% lysine, in a totally randomized experimental design trial (n = 4). The broken-line analysis method yielded more reliable and precise estimations of lysine requirements - 2.1% of diet or 4.9% dietetic protein - for final weight, weight gain and specific growth rate. Best feed conversion ratio was attained with 1.69% lysine in the diet or 4.9% lysine in dietetic protein. Body amino acids profile was an adequate reference for estimation of largemouth bass amino acids requirements.
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Exigência em lisina pelo "black bass" Micropterus salmoides. / Lysine requirements of largemouth bass Micropterus salmoides.Jony Koji Dairiki 08 July 2005 (has links)
Os elevados custos atribuídos à nutrição na piscicultura ligam a eficiência alimentar ao sucesso da atividade e à redução do impacto ao meio ambiente. Estudos sobre a nutrição e determinação de exigências nutricionais em aminoácidos são, portanto, ferramentas importantes para a consolidação da piscicultura comercial racional e com viabilidade econômica. A determinação da exigência em lisina para o black bass Micropterus salmoides foi feita em ensaio de dose-resposta e os dados coletados foram analisados por meio de três modelos estatísticos: regressão polinomial, regressão segmentada e modelagem matemática específica, para estimar a utilização e exigência dos aminoácidos. Foi utilizada a relação A/E = [(aminoácido essencial ÷ total de aminoácidos essenciais + cistina + tirosina) x 1.000], para estimar as exigências nutricionais dos demais aminoácidos essenciais em relação à lisina determinada no experimento dose-resposta. As unidades experimentais foram constituídas por lotes de 25 alevinos de black bass (1,29 ± 0,03 g; 4,35 ± 0,17 cm) condicionados a aceitar ração seca, alojados em gaiolas de PVC atóxico (abertura de malha 5 mm) com capacidade de 60 L e instaladas em caixas de polipropileno com capacidade de 1.000 L, com troca parcial de água num sistema fechado de recirculação e aeração. Os tratamentos correspondiam aos níveis crescentes de lisina: 1,0; 1,5; 2,0; 2,5; 3,0 e 3,5% na dieta n=4), num delineamento inteiramente aleatorizado (DIA). O modelo estatístico da regressão segmentada foi o modelo mais apropriado para determinação da exigência dietética de lisina para os alevinos de black bass em experimento dose-resposta. A exigência dietética em lisina para peso final, ganho de peso e taxa de crescimento específico foi de 2,1% da dieta ou 4,9% da proteína dietética. A exigência dietética de 1,69% de lisina na dieta ou 3,9% de lisina na proteína condicionou o melhor índice de conversão alimentar. O uso do perfil de aminoácidos corporais do black bass foi adequado como referência para estimar as exigências nutricionais de aminoácidos. / Adequate nutrition of fish stocks interconnects fish feeding efficiency, profitability and mitigation of environmental impact of fish farming. Knowledge on amino acids requirement of farmed fish boosts rationalization and profitability of fish farming systems. This study compares estimation of amino acids requirements of largemouth bass Micropterus salmoides from data of lysine dose-response trials, analyzed through different statistical models: polynomial regression, broken-line analysis and specific mathematical modeling. Amino acids requirements were estimated through the A/E relationship [A/E = (essential amino acid ÷ total essential amino acids + cystine + tyrosine) x 1.000]. Groups of 25, feed-conditioned largemouth bass fingerlings (1.29 ± 0.03 g; 4.35 ± 0.17 cm), were stocked in 60-L cages (5 mm mesh) placed in 1,000-L plastic, indoor tanks, closed circulation system, and fed diets containing 1.0, 1.5, 2.0, 2.5, 3.0, or 3.5% lysine, in a totally randomized experimental design trial (n = 4). The broken-line analysis method yielded more reliable and precise estimations of lysine requirements 2.1% of diet or 4.9% dietetic protein for final weight, weight gain and specific growth rate. Best feed conversion ratio was attained with 1.69% lysine in the diet or 4.9% lysine in dietetic protein. Body amino acids profile was an adequate reference for estimation of largemouth bass amino acids requirements.
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Microhabitat use and its effect on growth of age-0 smallmouth bass in the North Anna River, VirginiaSabo, Matthew J. 19 June 2006 (has links)
This study examined the relationship between microhabitat use and growth of age-0 smallmouth bass in the North Anna River. The study objectives were to describe microhabitat use during summer, assess the profitability of microhabitats, and determine if and how microhabitat use could determine which individuals gained a growth advantage.
Age-0 smallmouth bass changed their microhabitat use as they passed through stages of ontogenetic development and became familiar with their environment. More than 30% of the area available to brood larvae contained mean water column velocities greater than 4 cm/s and no cover. More than 80% of larvae observed after dispersing from the nest site occupied areas approximately one m deep with velocities near 0 cm/s, or large cover objects that created low velocity shelters throughout the water column. By six weeks after dispersal (when all juveniles were > 40 mm), more than 50% of juveniles occupied depths less than 60 cm and focal point velocities > 3 cm/s, and microhabitat use by large and small juveniles did not differ. In these shallow microhabitats with moderate to fast current velocities, juveniles foraged at a higher rate (5.1 bites/min on average) than in deeper and slower velocity areas (1.3 bites/min). When these foraging rates were translated into estimates of energetic profit, juveniles in the shallow-fast microhabitats gained approximately 5 j/min more than juveniles foraging in other microhabitats. Microhabitat use was the only aspect of behavior that affected the foraging rate or energetic profit gained by juvenile smallmouth bass.
I examined daily rings on otoliths to track the growth of individual smallmouth bass through time. Temperature affected growth rates below 22-23°C, so that individuals spawned later grew in warmer thermal regimes and grew relatively fast during early life stages. However, individuals that spawned early and grew slowly in cooler temperatures did not suffer higher mortality and compensated for their slow growth by accumulating growth over a longer period of time. Above 22-23°C, relative growth rates were not consistent through time; a fast growing individual during one life stage could grow relatively slow during the next. If growth above the temperature threshold depended on foraging success and foraging success depended on microhabitat use, then few individuals were consistently occupying the most profitable microhabitats.
In experiments in an artificial stream, juvenile smallmouth bass assessed the potential profitability of an area by the foraging rate they achieved there. They usually did not remain in an area unless they foraged well at the time they searched it, and did not appear to associate habitat characteristics with profitability. In the river, most of the microhabitats available were relatively unprofitable, so an individual that abandoned a profitable area might (depending on its foraging behavior) spend Significant time in unprofitable microhabitats and consequently reduce its growth rate. Increasing the availability or density of food resources may improve growth of juvenile smallmouth bass in the North Anna River by increasing the rate at which juveniles encounter profitable microhabitats and elevating their intake rates in profitable areas. / Ph. D.
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