Academic literature on the topic 'Fish pond industry'
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Journal articles on the topic "Fish pond industry"
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Sarker, Baadruzzoha, Mohammed Mahbub Iqbal, and Lirong Yu Abit. "Cost-benefit ratio analysis of freshwater aquaculture in selected area of Southern Bangladesh." Asian Journal of Medical and Biological Research 8, no. 4 (December 23, 2022): 240–50. http://dx.doi.org/10.3329/ajmbr.v8i4.63186.
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The agriculture industry is widely believed to be essential to the nation's long-term growth and prosperity. In many ways, including via enhanced food security, employment, and economic growth, the agricultural sector as a whole and fisheries in particular have made significant contributions to enhancing people's health and well-being. A variety of measures may be used to determine the financial health of the fish farms. The purpose of this study was to estimate the financial viability of fish pond farming and to ascertain its advantages and disadvantages. From the Taltoli upazila in the Barguna area, sixty pond fish breeders were randomly selected. These figures allow us to calculate the gross cost of producing pond fish per hectare to be 1378806 BDT, the gross return to be 2125023 BDT, and the net return to be 746217 BDT. The findings of this study proved that pond fish farming was a profitable endeavor in the region that was being studied. The Cobb-Douglas production function was further employed in order to better comprehend the part that each variable in the production of pond fish plays. The majority of the taken into account factors were demonstrated to have a considerable impact on fish productivity. The returns on pond fish production were positively and statistically significantly impacted by four of the six parameters studied. To improve the management and cultivation of pond fish farming, certain recommendations were made. Asian J. Med. Biol. Res. 2022, 8 (4), 240-250
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Hlavatchuk, V. A. "Peculiarities of the organization of the cultivation technology and natural spawning of pike." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 26, no. 100 (February 21, 2024): 238–46. http://dx.doi.org/10.32718/nvlvet-a10037.
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The main area of development of aquaculture in our country today is pond fish farming, which has a long history of development. Pike is a very valuable species in aquaculture, especially for pond culture in polyculture with carp or pasture aquaculture in lakes. Ukraine has significant resource potential for growing marketable pond fish in farms, as a promising form of production organization. The direction of the development of polyculture in fish farming is a promising direction that develops and is effectively implemented in fish farming every year. Polyculture is based on such main objects of aquaculture as carp and herbivorous fish, as well as additional ones – pike, catfish, zander, tench, crucian carp. Currently, special attention in the development of polyculture is directed to the cultivation of pike. Stocking with pike brings not only additional fish productivity due to the realization of growth potential, eating low-value fish species, acting as a biomeliotrator, but also stimulates the growth of the main fish species. Using a rational ecosystem of ponds with the targeted formation of its trophic links under optimal polyculture, it is possible to obtain natural fish productivity in the grazing form of fish farming from 1 to 1.6 t/ha and more. This summer's marketable pike can be and expediently grown both in relatively small and sufficiently large feeding carp ponds, provided that trash fish are distributed in them, and these ponds must also be drainable. The cultivation of the main objects of fish farming is improved thanks to the introduction of pike into polyculture. It eats low-value fish, which contributes to better growth productivity of carp and herbivorous fish. In addition, the pike itself is a valuable object of fishing, which brings the conditions of growing commercial fish in farms closer to natural ones. The highest efficiency can be achieved thanks to the exact selection of technological parameters of the entire fish farming process. Numerous factors must be taken into account here: the temperature regime of the reservoir, dissolved substances, the development of the natural fodder base, the optimal density of fish planting, the rational ratio of species in polyculture, etc. Thus, given the appropriate parameters, this technology ensures greater efficiency of the industry and creates prerequisites for increasing its competitiveness.
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Fantini-Hoag, Leticia, Terry Hanson, and Jesse Chappell. "Bioeconomic Analysis of In-Pond Raceway System Production of Foodsize and Stocker Hybrid Catfish (Channel Catfish Ictalurus punctatus ♀ × Blue Catfish, I. furcatus ♂)." Fishes 8, no. 2 (February 6, 2023): 96. http://dx.doi.org/10.3390/fishes8020096.
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The U.S. catfish industry is seeking production systems that are efficient, intensive, and profitable. Growing foodsize and stocker-sized fish in the same pond is attractive as it is often difficult to obtain larger-sized stockers early each year. This case study evaluated the performance and economics of producing foodsize hybrid catfish and stocker-sized fingerlings in in-pond raceway systems (IPRS) placed into four 0.4 ha ponds. Growout raceways (RW1/RW2) in ponds 1 and 2 were 63 m3, and 45 m3 in ponds 3 and 4 (RW3/RW4). Each pond had one (14 m3) stocker unit raceway and a 5 HP of aeration that maintained adequate dissolved oxygen levels. Average growout production was 12,050 kg/ha in 63 m3 raceways and 12,078 kg/ha in 45 m3 raceways (228 days of production) and achieved harvest weights ranging from 564 to 661 g. The raceway stocker unit had production yields ranging from 3537 to 4388 kg/ha (143 days of production) and achieved harvest weights ranging from 123 to 234 g. Stocker units in ponds 1 and 2 generated 8540 stocker–fingerlings (21,102 fingerlings/ha) and units in ponds 3 and 4 generated 7954 fingerlings (19,654 fingerlings/ha). An investment of USD 39,996 was needed for ponds 1 and 2 and USD 21,196 for ponds 3 and 4. When scenarios were analyzed financially, positive financial net returns occurred when farm level investment decreased, leading to reduced payback periods, increased net present values, and higher internal rates of return. IPRS used stocker units to culture fingerlings for future stocking of foodsize fish. IPRS provided good inventory control, and high production yields compared to traditional pond culture of catfish.
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Kurbonov, R., A. Urinov, I. Nosirov, A. Mamazhonov, I. Abdullaev, M. Mamatkulov, S. Mirzaboboeva, and A. Khalimov. "CREATION OF WATER CIRCULATION SYSTEMS AS A FACTOR OF ECONOMIC EFFICIENCY OF INDUSTRIAL FISHERIES." Journal of Science and Innovative Development 4, no. 3 (June 30, 2021): 41–53. http://dx.doi.org/10.36522/2181-9637-2021-3-4.
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The analysis of the fishery companies of the republic shows that the main drawback in the fishing industry is the small volume of mass rearing of fish fry and the ineffective use of artificial groundwater reservoirs both – built in the 60-80s of the last century and those currently under construction. Due to the inappropriate size of the surface of these lakes, about 50-100 hectares, and insufficient depth in the ponds, small quantities of carp (2000-3000 units) are bred, large-scale repairs are being carried out, and the fish catch per pond with an area of 1.0 hectares is 1,0-3.0 tons, which, in turn, requires a large amount of water, mineral fertilizers and animal feed. The Innovative Fishery Center under the Fergana State University explores favorable hydro biological conditions for intensive fish farming, with an account of the climate of the republic, without the use of aerators, by organizing the circulation of water in the pond water, in order to provide fish bred in the reservoir with a sufficient amount of oxygen, considering the insufficient surface of the area (0.5-1 hectares – ponds with artificial soil, up to 1.5 hectares – natural reservoirs). As a result of carp care in poly culture, fish productivity is increased by 3-4 times as compared to the method of extensive fish farming.
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Ziegenhorn, Randy. "A River Full of Fish: Industrial Catfish Production and the Decline of Commercial Fishing on the Upper Mississippi River." Human Organization 59, no. 2 (June 1, 2000): 162–68. http://dx.doi.org/10.17730/humo.59.2.q0pg63228w258875.
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This paper explores the decline of commercial fishing on the upper Mississippi River. For much of the 20th century fishing provided work for many in river communities and an important buffer against fluctuations in the regional economy. In the late 1960s the introduction of pond-raised catfish from newly created fish farms in the southern United States created a source of uniform, mild-flavored, and untainted fish that satisfied the preferences of both the food industry and consumers. Demand for river fish, in particular catfish, collapsed. Today fish are plentiful in the Mississippi but low prices offer little incentive to independent fishers. Some fish processors, faced with declining local demand, have stepped up sales of river fish to markets as far away as New York. Other processors have opted not to fight the fish-farming industry and now distribute pond-raised catfish. This paper explores the complex social and economic forces that have reshaped local economies and the ecology of the river itself.
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Alekhina, A. V., L. I. Nazina, A. E. Kutsova, I. S. Kosenko, A. N. Pegina, and G. N. Egorova. "Full factorial experiment to determine optimal technological modes in production of enzymed canned pond fish." IOP Conference Series: Earth and Environmental Science 1052, no. 1 (July 1, 2022): 012041. http://dx.doi.org/10.1088/1755-1315/1052/1/012041.
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Abstract In the context of modern market economy, successful performance of enterprises should be ensured by high quality and competitive produce. The modern processing industry is becoming increasingly dependent on enzyme preparations used in food production. The paper deals with some optimal production conditions for cathepsin-supplemented canned pond fish used for increasing the efficiency of technological processes to reduce the duration of salting and ensure quality canned fish that meet consumer preferences. A full-factor experiment in salting cathepsin-supplemented pond fish determined the magnitude of quantitative effects on the pH value and salt content in the product.
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Kim I, Chhim, and Serey Mardy. "A Review on Freshwater Pond Fish Farming in Cambodia." International Journal of Integrative Research 2, no. 1 (January 30, 2024): 1–12. http://dx.doi.org/10.59890/ijir.v2i1.1171.
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In addition to producing fish, freshwater fish pond farms preserve biodiversity, serve as important aquatic ecosystems, and enhance and maintain of the quality of the ecosystem, provide services for a range of recreational activities, are crucial to the management of water and landscape, and aid in the preservation of cultural heritage. the evaluation of reviews of the literature from all pertinent sources. Review findings indicated that high-value species are the most common fish farmed in Cambodia's ponds and cages such as snakehead (Channa micropeltes, Channa striata), Pangasius catfish (Pangasianodon hypophthalmus) and hybrid catfish (Clarias batrachus and C. gariepinus) and introduced fishes such as Nile tilapia (Oreochromisniloticus), Chinese carps (silver, bighead and grass carp). The prospects of Cambodia's aquaculture industry are called into question by these findings, as it is currently organized, to make a significant contribution to employment, food and nutrition security, and rural economic development. We propose actions to increase sector sustainability and contribute to desired development outcomes
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Wanja, Daniel W., Paul G. Mbuthia, Robert M. Waruiru, Janet M. Mwadime, Lilly C. Bebora, Philip N. Nyaga, and Helena A. Ngowi. "Fish Husbandry Practices and Water Quality in Central Kenya: Potential Risk Factors for Fish Mortality and Infectious Diseases." Veterinary Medicine International 2020 (March 19, 2020): 1–10. http://dx.doi.org/10.1155/2020/6839354.
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Fish mortality has an enormous impact on the aquaculture industry by reducing fish production and slowing industrial growth. A cross-sectional study was carried out in Kirinyaga County, Central Kenya, to evaluate potential risks of fish mortality and disease transmission and suitability of pond water for rearing fish. A semistructured questionnaire that focused on general information, management practices, and disease history was administered to 92 small-scale fish farmers. Parasitological examination of fish sampled from selected farms (farms that were reporting mortality at the time of sampling) was done by following the standard procedure. Water quality parameters for 33 ponds were evaluated in situ (recorded on pond site) and ex situ (analysed at the laboratory) following the standard methods. The risks were assessed by adjusted odds ratio based on univariate regression analysis. Prevalent fish husbandry practices that were found to be associated with fish mortality and acquisition of pathogens in the study area were the use of raw livestock manure (0R = 1.500), high fish stocking density (0R = 1.168), and feeding fish on homemade rations (0R = 1.128). Parasitological investigation found infestation with Diplostomum spp., Dactylogyrus spp., Clinostomum spp., and Piscicola leeches. Water temperature and pH were found fit for rearing fish. Of the 33 fishpond water samples tested, 1 (3%) and 6 (18%) exceeded the recommended limits of <100 mg/L and <0.2 mg/L of nitrate and nitrite, respectively. Of the 29 fishpond water tested, 15 (59%) exceeded the recommended limits of <100 mg/L of total ammonia. The findings show that the use of raw livestock manure, high fish stocking density, high nitrates and nitrites, and high ammonia levels in fishponds are potential risk factors for fish mortality and acquisition of infectious pathogens in a pond environment in a rural setup, in Central Kenya. There is a need to address the above factors in small-scale farming practices to minimize fish loss and also to prevent the occurrence and spread of infectious pathogens.
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Sumarni, Sumarni, Mariam Mariam, and Hadija Hadija. "The Analysis of the Pattern of Aquaculture Business Management Application to Increase the Farmers’ Income in Pangkep Regency." Journal of Agricultural Studies 5, no. 2 (June 29, 2017): 190. http://dx.doi.org/10.5296/jas.v5i2.11472.
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The study focuses on the intensification by applying processing technologies of ponds through the programs of pond intensification, which is the farming techniques, covering the repair of pond construction, water, pest/disease control, fertilization and supplementary feeding, stocking of high quality seeds, processing, marketing and business management. Extensification is intended to expand the fish farming to several areas that have great potential, while diversification is directed at the diversity of the fishery as well as the development of processing and marketing industry. This study was conducted in Pangkep Regency, Pangkajene Distrcit, Bungoro, Labakkang, Ma'rang 'and Segeri, Mandalle since this area is one of the development areas for pond intensification in South Sulawesi. This activity was carried out by field observation through interviews, questionnaires and focus group disscussion with all relevant parties. This research used qualitative and quantitative analysis methods by which data and information obtained were analyzed quantitatively and then qualitatively by using a multiple regression analysis.
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Putri, Ariella Ramadhani, Didi Rukmana, and Rahmadani Rahmadani. "VALUE ADDED BUSINESS OF MILK FISH POND IN PINRANG REGENCY." Agribusiness Journal 4, no. 2 (December 30, 2021): 27–32. http://dx.doi.org/10.31327/aj.v4i2.1656.
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Milkfish is no longer just a superior commodity in Pinrang Regency, but it has become an inflation suppressor in South Sulawesi, so that representatives of Bank Indonesia South Sulawesi have made the milkfish commodity a development cluster in Pinrang Regency. This study aims to analyze the added value of various types of milkfish products processed by milkfish processing household industries in Pinrang Regency. The research was conducted in Pinrang Regency, South Sulawesi Province. The location selection was carried out purposively with the consideration that the location is an area where milkfish processing is located. The respondents used were one home industry. The data analysis used is descriptive qualitative method of data and information and Hayami method. The results showed the added value produced by the processing of boneless fish products with a small size of Rp. 3,450,-/head, medium size Rp. 6.182,-/head, large size Rp. 15,972,-/fish, shredded fish bone product Rp. 41,991,-/pack and Meatball products Rp. 60,923,-/ pack. This shows that the development of the milkfish processing industry provides added value (positive). It is hoped that the government can further develop the milkfish processing industry in Pinrang Regency because it can provide beneficial value for milkfish farmers.
Books on the topic "Fish pond industry"
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Sumatera Utara (Indonesia). Badan Investasi dan Promosi. Project profile: Grouper fish, palm oil industry, prawn pond. [Medan]: Investment & Promotion Board, North Sumatera Province, 2005.
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1947-, Cointreau-Levine Sandra, Bartone Carl, and Hepher Balfour 1925-, eds. Aquaculture with treated wastewater: A status report on studies conducted in Lima, Peru. Washington, D.C., USA: World Bank, Water Supply and Urban Development Dept., 1987.
Find full textBook chapters on the topic "Fish pond industry"
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Roy, Anja, Hans-Heinrich Krüger, and Maria Schmalz. "Management in wesentlichen Konfliktfeldern um den Fischotter – Übersicht zum aktuellen Wissensstand." In Evidenzbasiertes Wildtiermanagement, 127–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65745-4_6.
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ZusammenfassungNach dem drohenden Aussterben des Fischotters in Mitteleuropa erholen sich seit Mitte des 20. Jahrhunderts die Bestände dieser Tierart. Aus der Rückbesiedlung in ehemalige Verbreitungsgebiete, in denen sich mittlerweile Wirtschaftsformen und Praktiken des Fischmanagements ohne die Präsenz des Topprädators Fischotter entwickelt haben, resultieren vor allem in der Fischerei Konflikte verschiedener Interessensgruppen. Der Wissensstand im aktuellen Management dieser Konflikte wird umrissen, angewandte Methoden und Einzelmaßnahmen in ihrer Wirksamkeit beschrieben und diskutiert sowie Ergebnisse einer aktuellen Umfrage in Deutschland hinzugezogen. Es bestehen deutschlandweit wesentliche Wissenslücken zu grundlegenden Populationsdaten zum Fischotter, zu sozioökonomischen Hintergründen bestehender Konflikte und zur Kausalität auftretender Rückgänge von Fischbeständen und wirtschaftlichen Verlusten in fischereilichen Betrieben. Besonders schwierig zu lösen sind Konflikte in Teichwirtschaftsgebieten. Auftretende wirtschaftliche Verluste sind hier nicht alleine dem Fischotter als Verursacher zuzuschreiben, sondern müssen in der Gesamtheit aller fischfressenden Prädatoren betrachtet werden. In Teichwirtschaften sind nur begrenzt direkte Abwehrmaßnahmen gegen den Fischotter durch Zäunungen möglich. Die Entwicklung regional angepasster Managementpakete wird durch fehlende Daten erschwert. Einzelne Lösungsansätze vor allem aus Sachsen zeigen aber, dass auch hier Konfliktbeilegungen möglich sind. Weitere Konfliktfelder in der Gewässerbewirtschaftung, der Fallenjagd und bei Freizeitaktivitäten werden angesprochen.AbstractAfter the otter was threatened with extinction in Central Europe, its populations have recovered since the middle of the 20th century. The recolonization of former habitats, where economic systems and fish management systems have developed in the meantime without the presence of this apex predator, has led to conflicts with various stakeholders, especially fisheries. This paper outlines the state of knowledge in the current management of these conflicts. Applied methods and individual measures are described, discussed and evaluated, with reference to the results of a recent survey conducted in Germany. Nationwide, there are major knowledge gaps regarding basic data on the otter population, the socio-economic background of existing conflicts, and the causal chain between fish population declines and economic losses in the fishing industry. Conflicts are particularly difficult to resolve in pond-based fisheries, where not only otters but all piscivorous predators must be considered in their entirety. In pond farms, fencing is only a limited means of directly deterring otters. The development of regionally adapted management packages is hampered by a lack of data. However, individual approaches, especially from Saxony, show that conflict resolution is possible even in such cases. Further areas of conflict in water management, trapping and recreational activities are addressed.
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Čanak, Stevan, Jonel Subić, and Marko Jeločnik. "Current State of Fish Production on Carp Farms in Serbia." In Agricultural Management Strategies in a Changing Economy, 80–99. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-7521-6.ch004.
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In the Serbian fishing industry, carp breeding in pond is the most important activity. Analysis has shown that breeding may be organized in a two-level semi-intensive system, or in a fully intensive breeding system. Carp farms in Serbia cover any area of around 10,000 ha, with an annual restocking of young fish at around 8,600 ha. Species usually bred include carp, bighead carp, silver carp, grass carp, catfish, pike, and perch. By the level of production of edible fish in carp ponds, with an average production level of 5,000-7,000 tons of fish annually, Serbia takes an important place in Europe. In the chapter, the authors calculate several performance indicators of production for all carp farms, and the results show that by the production intensity Serbia is highly positioned in Europe.
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Yadav, Rashmi, and Ms Sangeeta. "ADVANCING SUSTAINABLE AQUACULTURE THROUGH WATER QUALITY MONITORING AND TECHNOLOGICAL INNOVATIONS." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 15, 166–77. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag15p2ch3.
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The monitoring of key physico-chemical parameters for aquaculture water quality is of paramount importance in fish farming. This chapter delves into the critical parameters that influence fish survival and development, including pH, electrical conductivity (EC), oxidation-reduction potential (ORP), and turbidity. Maintaining optimal conditions within defined ranges is essential for fish health and productivity, as deviations can lead to stress or even mortality. Furthermore, specific water quality criteria for pond water fishery are outlined to achieve high yields with minimal inputs. The integration of advanced technologies such as wireless sensor networks (WSNs) and embedded systems has revolutionized water quality monitoring in aquaculture. WSNs offer remote data capture and real-time monitoring, enhancing efficiency and providing insights into environmental conditions. Embedded systems, equipped with ZigBee, GSM, Cloud, MSP430, and Lab View technologies, enable precise control and monitoring of critical parameters. In addition to WSNs and embedded systems, various automatic monitoring systems, including IoT-based solutions, RF, GSM, GPS tracking, artificial neural networks (ANN), computer vision, and specialized sensor platforms, have emerged as valuable tools for aquaculture farmers. These systems enable real-time data collection, predictive capabilities, and insights into fish behaviour, ultimately promoting sustainability and efficient farming practices. The integration of technology with aquaculture holds the potential for a future where data-driven insights and sophisticated monitoring systems take a pivotal role in nurturing aquatic life and safeguarding the sustainability of the aquaculture industry.
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"Invasive Asian Carps in North America." In Invasive Asian Carps in North America, edited by Diana M. Papoulias, James Candrl, Jill A. Jenkins, and Donald E. Tillitt. American Fisheries Society, 2011. http://dx.doi.org/10.47886/9781934874233.ch18.
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<em>Abstract</em>.—The Asian black carp <em>Mylopharyngodon piceus </em>is of interest to the aquaculture industry in the United States as a biological control for snails and mollusks. However, past experience in North America with other Asian carps has raised concern that black carp will establish wild populations and negatively affect native populations of fish and invertebrates, especially mollusks. The demand for black carp has led biologists to seek ways to allow their use while at the same time maintaining control over their distribution and reproduction. Physical containment and restrictions on importation, release, and stocking have mostly failed. Control of reproduction holds more promise. The induction of triploidy (having three sets of chromosomes), which can render an individual biologically sterile, is of particular interest. The main purpose of this study was to evaluate the efficiency of proposed testing procedures used to assure genetic triploidy in black carp prior to distribution by the state of Missouri, using black carp and grass carp <em>Ctenopharyngodon idella</em>. Our objectives were to (1) verify if the ploidy determination methodology (nuclear size) employed was 100% accurate, (2) determine growth and survival of juvenile black carp over extended periods of time under laboratory and pond conditions, and (3) histologically examine development and gametogenesis in gonads collected from triploid and diploid black and grass carps of different ages and stages of maturation. Comparison of erythrocyte nuclear size using the Coulter counter method versus the more accurate method of flow cytometry that measures DNA content indicated an error rate of 0.25% by the former method. Black carp grew and survived well in mid-Missouri ponds. Triploid grass carp males appeared to produce functional gametes, and some triploid black carp male testes had apparently normal spermatocytes within cysts. A few normally developing oocytes at previtellogenic and vitellogenic stages were observed in triploid grass carp females, and a few normal perinuclear oocytes could be identified in triploid black carp females. Currently, the standards of the U.S. Fish and Wildlife Service’s triploid grass carp voluntary inspection program are being followed by some states to manage triploid black carp. Our results indicate that although the percentage of diploid black carp that could pass through the currently proposed screening program is small, overall numbers of diploid black carp distributed in a state could be substantial depending on the number of triploids distributed. Furthermore, despite indications that triploid male black carp can be expected to be functionally sterile, reproductive studies may be warranted given the large wild populations of diploid grass carp, bighead carp <em>Hypophthalmichthys nobilis</em>, and silver carp <em>H. molitrix </em>in the Mississippi River basin system.
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"Invasive Asian Carps in North America." In Invasive Asian Carps in North America, edited by Diana M. Papoulias, James Candrl, Jill A. Jenkins, and Donald E. Tillitt. American Fisheries Society, 2011. http://dx.doi.org/10.47886/9781934874233.ch18.
Full textAbstract:
<em>Abstract</em>.—The Asian black carp <em>Mylopharyngodon piceus </em>is of interest to the aquaculture industry in the United States as a biological control for snails and mollusks. However, past experience in North America with other Asian carps has raised concern that black carp will establish wild populations and negatively affect native populations of fish and invertebrates, especially mollusks. The demand for black carp has led biologists to seek ways to allow their use while at the same time maintaining control over their distribution and reproduction. Physical containment and restrictions on importation, release, and stocking have mostly failed. Control of reproduction holds more promise. The induction of triploidy (having three sets of chromosomes), which can render an individual biologically sterile, is of particular interest. The main purpose of this study was to evaluate the efficiency of proposed testing procedures used to assure genetic triploidy in black carp prior to distribution by the state of Missouri, using black carp and grass carp <em>Ctenopharyngodon idella</em>. Our objectives were to (1) verify if the ploidy determination methodology (nuclear size) employed was 100% accurate, (2) determine growth and survival of juvenile black carp over extended periods of time under laboratory and pond conditions, and (3) histologically examine development and gametogenesis in gonads collected from triploid and diploid black and grass carps of different ages and stages of maturation. Comparison of erythrocyte nuclear size using the Coulter counter method versus the more accurate method of flow cytometry that measures DNA content indicated an error rate of 0.25% by the former method. Black carp grew and survived well in mid-Missouri ponds. Triploid grass carp males appeared to produce functional gametes, and some triploid black carp male testes had apparently normal spermatocytes within cysts. A few normally developing oocytes at previtellogenic and vitellogenic stages were observed in triploid grass carp females, and a few normal perinuclear oocytes could be identified in triploid black carp females. Currently, the standards of the U.S. Fish and Wildlife Service’s triploid grass carp voluntary inspection program are being followed by some states to manage triploid black carp. Our results indicate that although the percentage of diploid black carp that could pass through the currently proposed screening program is small, overall numbers of diploid black carp distributed in a state could be substantial depending on the number of triploids distributed. Furthermore, despite indications that triploid male black carp can be expected to be functionally sterile, reproductive studies may be warranted given the large wild populations of diploid grass carp, bighead carp <em>Hypophthalmichthys nobilis</em>, and silver carp <em>H. molitrix </em>in the Mississippi River basin system.
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Shaik, Abdul Shareef, Nasar Thuvanismail, Aditya Varma Chekuri, and Shiva Krishna Vadlakonda. "Hydrodynamic Analysis of A Semisubmersible Fish Cage With Different Drafts Subjected to Regular Waves." In Recent Experimental and Computational Research in Structural Engineering, 69–80. Grinrey Publishing, 2023. http://dx.doi.org/10.55084/grinrey/ert/978-81-964105-2-0_7.
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Cage farming has historical roots spanning centuries, while its commercialization has only commenced within the past few decades. The unsustainability of captured fish production leads to the development of the aquaculture industry. The initial practice has been carried out in ponds, rivers and later moved on into sheltered zones of the sea as a part of nearshore farming. Nowadays, farmers are keen to relocate offshore due to space constraints and pollution-related issues. This article presents a hydrodynamic analysis of the semisubmersible square fish cage with a net solidity of 0.26 subjected to regular waves. The cage is studied numerically under different drafts of 17.5cm, 26.25cm and 35cm under regular waves with a water depth of 55cm. Frequency and time domain analyses are performed to investigate the hydrodynamic characteristics of the cage. Each case's motion responses and anchor line tension are studied and results are analysed. The results indicate that the increase in draft depths leads to decreased motion responses and anchor line tensions. The cage behaves well in three different submerged conditions and shows better performance at the draft of 35cm.
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"Paddlefish: Ecological, Aquacultural, and Regulatory Challenges of Managing a Global Resource." In Paddlefish: Ecological, Aquacultural, and Regulatory Challenges of Managing a Global Resource, edited by Hong Ji and Yang Li. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874530.ch11.
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<i>Abstract</i>.—The North American Paddlefish <i>Polyodon spathula</i> was first introduced into China from the United States in 1988, with the importation of 3,000 larvae. From this and subsequent introductions, successful spawning of broodstock raised in China was first achieved in Hubei Province in 2001. As of 2018, this nonnative Paddlefish is cultured in more than 10 provinces, including Hubei, Sichuan, and the southern area of Shaanxi, all throughout the Yangtze River basin, and Guangdong, in the Zhujiang River basin. Four large Paddlefish hatcheries with other, smaller, newly-established facilities produce about 10 million fingerlings per year. With feeding habits of Paddlefish being similar to those of Bighead Carp <i>Hypophthalmichthys nobilis</i>, a traditional fish species produced by Chinese aquaculture, fish farmers rear Paddlefish as a substitute species for Bighead Carp in their production systems. Typically, Paddlefish fingerlings (10 cm TL) are cultured to market sizes (0.6–0.75 kg) in ponds or cages in reservoirs. Paddlefish in China are cultured primarily for meat rather than roe. Acceptable market size can be reached within six months on prepared diets, whereas it takes one year on natural diet. Paddlefish are usually marketed live, as no processing industry has developed. Because Paddlefish have a low tolerance to hypoxia, long distance transportation of live market size Paddlefish is relatively limited. A few Paddlefish are also marketed as aquarium fish. Because of the limited supply of fingerlings and the difficulty of efficiently catching Paddlefish from large bodies of water, reservoir ranching as a production system has not been well developed. Also, reservoir ranching for Paddlefish was slowed due to concerns about potential hybridization between the nonnative Paddlefish and the critically endangered Chinese Paddlefish <i>Psephurus gladius</i> of the Yangtze River. The short supply and high price of fingerlings remain major factors limiting the expansion of North American Paddlefish production in China.
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"Whirling Disease: Reviews and Current Topics." In Whirling Disease: Reviews and Current Topics, edited by JERRI L. BARTHOLOMEW and PAUL W. RENO. American Fisheries Society, 2002. http://dx.doi.org/10.47886/9781888569377.ch1.
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<EM>ABSTRACT. </EM>The explosion of information on the distribution and impacts of whirling disease in the United States during the last decade has changed the way in which we view <em>Myxobolus cerebralis</em>. However, even a cursory review of whirling disease literature reveals that many of our concerns today have been expressed at some previous time in the history of our experience with this parasite. From the first description of <em>M. cerebralis </em>in Germany in 1893, it was recognized that whirling disease could severely affect the growing trout farming industry. During the first half of this century <em>M. cerebralis </em>was disseminated throughout Europe, especially following WWII when live rainbow trout <em>Oncorhynchus mykiss </em>were transferred freely. Between 1950 and 1970, the parasite began to appear at trout farms on other continents, and it was in the late 1950s that whirling disease first emerged in the United States. Nearly all reports of detection, both here and in Europe, were associated with artificial rearing facilities. Until the 1980s, the only references reporting infections in natural populations of salmonids are from Finland, Russia, and Michigan, and the reported infections were usually light. Clinical whirling disease was largely associated with culture of trout in earthen ponds, where the infective agent concentrated. In the period between 1970 and 1990, there were increasing reports of the parasite in hatcheries throughout Europe and the United States. In Europe, the perspective after many years of living with whirling disease was that eradication was not possible in most cases, but that we knew enough to reduce infection levels below the point where clinical disease occurs. In the United States, reports of whirling disease in hatcheries were often followed by destruction of any fish on the facility, but as it became apparent that proper management could reduce infection levels, and as there appeared to be no effects outside the bounds of the hatchery, these standards were relaxed. However, in the 1990s, clinical whirling disease was reported in free-ranging trout populations in Colorado and Montana, causing us, once again, to rethink how this disease can be controlled and managed.
Conference papers on the topic "Fish pond industry"
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Gopi, Arepalli Peda, and K. Jairam Naik. "An IoT model for Fish breeding analysis with water quality data of pond using Modified Multilayer Perceptron model." In 2022 International Conference on Data Analytics for Business and Industry (ICDABI). IEEE, 2022. http://dx.doi.org/10.1109/icdabi56818.2022.10041617.
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