Academic literature on the topic 'Bivalves – Zimbabwe – Lake Kariba'

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Journal articles on the topic "Bivalves – Zimbabwe – Lake Kariba"

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Moyo, S. M. "Cyanobacterial nitrogen fixation in Lake Kariba, Zimbabwe." SIL Proceedings, 1922-2010 24, no. 2 (March 1991): 1123–27. http://dx.doi.org/10.1080/03680770.1989.11898927.

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Berg, H�kan, Martina Kiibus, and Nils Kautsky. "Heavy metals in tropical Lake Kariba, Zimbabwe." Water, Air, & Soil Pollution 83, no. 3-4 (August 1995): 237–52. http://dx.doi.org/10.1007/bf00477355.

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Berg, Håkan, Petra Michélsen, Max Troell, Carl Folke, and Nils Kautsky. "Managing aquaculture for sustainability in tropical Lake Kariba, Zimbabwe." Ecological Economics 18, no. 2 (August 1996): 141–59. http://dx.doi.org/10.1016/0921-8009(96)00018-3.

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MOYO, NGONIDZASHE A. G. "The inshore fish yield potential of Lake Kariba, Zimbabwe." African Journal of Ecology 28, no. 3 (September 1990): 227–33. http://dx.doi.org/10.1111/j.1365-2028.1990.tb01155.x.

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Mabika, Nyasha, and Maxwell Barson. "A Survey of Gill Histopathology of Thirteen Common Fish Species in the Sanyati Basin, Lake Kariba, Zimbabwe/ Badania Histopatologiczne Skrzeli Trzynastu Pospolitych Gatunków Ryb W Zlewni Sanyati, Jezioro Kariba, Zimbabwe." Zoologica Poloniae 59, no. 1-4 (December 1, 2014): 25–34. http://dx.doi.org/10.2478/zoop-2014-0002.

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Abstract Following a study of gill pathology in African catfish (Clarias gariepinus) and Nile Tilapia (Oreochromis niloticus) from the Sanyati Basin of Lake Kariba, Zimbabwe, a similar survey was carried out in thirteen other common fishes of Lake Kariba. Gill tissues were dissected from the fish, preserved and prepared for histology. The prepared tissue sections were observed under a light microscope. Six histopathological lesions were observed, namely epithelial lifting, hyperplasia, lamellae fusion, parasitic cysts, oedema, and aneurysm. Epithelial lifting was prevalent in all fish species whilst aneurysm was only observed in two fish species. Synodontis zambezensis had the highest prevalence of gill lesions whilst Marcusenius microlepidotus, Brycinus imberi and Micralestes acutidens had the least prevalence of lesions. Most of these histopathological lesions were mild to moderate, and this is suggestive of good health of the fish species investigated. Seventy seven percent of the fish species were infected with monogenean ectoparasites. More research on fish health in Lake Kariba is recommended and future studies should aim to quantify these histological changes in relation to environmental conditions of the lake. This will enable histopathology to be used as a biomarker or predictor of water quality.
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Hamandishe, Vimbai R., Petronella T. Saidi, Venancio E. Imbayarwo-Chikosi, and Tamuka Nhiwatiwa. "A Comparative Evaluation of Carcass Quality, Nutritional Value, and Consumer Preference of Oreochromis niloticus from Two Impoundments with Different Pollution Levels in Zimbabwe." International Journal of Food Science 2018 (August 8, 2018): 1–10. http://dx.doi.org/10.1155/2018/7862971.

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The objective of the study was to determine the quality and consumer preferences of Nile tilapia (Oreochromis niloticus) from two water bodies with different pollution levels and trophic states. Water quality assessment of the two impoundments was carried out. Fish were sampled from hypereutrophic Lake Chivero and oligomesotrophic Lake Kariba for proximate analysis, carcass quality, and sensory evaluation. Conductivity, dissolved oxygen, transparency, ammonia, total phosphates, reactive phosphates, and chlorophyll a were significantly different (P<0.05). Fish from Lake Kariba had significantly higher condition factors and lower fillet yields, while fish of length 10-20 cm, from Lake Chivero had significantly more fat. Lake Chivero fish were darker, greener, and less red while Lake Kariba fish were lighter, less green, and less red. Raw fish from Lake Kariba were significantly firmer, were less green and redder, had a stronger typical fish odour, and were more acceptable than Lake Chivero fish. Lake Chivero fish had a stronger foreign fish odour than their counterparts. No statistical differences were observed on fillet cooking losses, cooked fish sensory parameters, and acceptability. The fish could, however, not be safe due to possibility of toxins in water and feed (algae) which may bioaccumulate and ultimately affect other attributes of fish quality.
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Moyo, Ngonidzashe A. G. "The feeding habits of Sargochromis Codringtonii in Lake Kariba, Zimbabwe." Hydrobiologia 522, no. 1-3 (July 2004): 321–27. http://dx.doi.org/10.1023/b:hydr.0000029966.30531.15.

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Chifamba, PC, and JJ Videler. "Growth rates of alienOreochromis niloticusand indigenousOreochromis mortimeriin Lake Kariba, Zimbabwe." African Journal of Aquatic Science 39, no. 2 (April 3, 2014): 167–76. http://dx.doi.org/10.2989/16085914.2014.903375.

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Dou�llou, L., and K. H. Erlwanger. "Crustacean parasites of fishes in Lake Kariba, Zimbabwe, preliminary results." Hydrobiologia 287, no. 3 (July 1994): 233–42. http://dx.doi.org/10.1007/bf00006372.

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Mahere, TS, MZ Mtsambiwa, PC Chifamba, and T. Nhiwatiwa. "Climate change impact on the limnology of Lake Kariba, Zambia–Zimbabwe." African Journal of Aquatic Science 39, no. 2 (April 3, 2014): 215–21. http://dx.doi.org/10.2989/16085914.2014.927350.

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Dissertations / Theses on the topic "Bivalves – Zimbabwe – Lake Kariba"

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Mushongera, Darlington D. "Poverty dynamics and livelihood challenges among small-scale fishing communities on lake Kariba - Zimbabwe." University of the Western Cape, 2013. http://hdl.handle.net/11394/4272.

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Magister Philosophiae - MPhil
Poverty dynamics and livelihood challenges among small-scale fishing communities on Lake Kariba (Zimbabwe) The aim of this study was to assess poverty among small-scale fishing communities on Lake Kariba (Zimbabwe) as well to as identify livelihood challenges that confront them. Two fishing communities were used as case studies and were uniquely selected from among the many fishing camps/villages dotted along the Zimbabwean shoreline of Lake Kariba. Depending on gear type, fishing activities on Lake Kariba target both the smaller-sized Kapenta species and larger species such as the bream and the tiger. Fishing activities are a major livelihood source for fishers in the two case studies upon which they obtain food and derive income to address other family needs. Mutual linkages and exchanges also exist between fishing camps/villages and communal areas where land-based activities such as cropping and livestock rearing are carried out. Before fieldwork, there was a pre-conceived notion that members of fishing communities on Lake Kariba were very poor. Although the fishers expressed desires for a better life than they were experiencing, they did not consider themselves poor. Instead, they rated their economic position as well off compared to some of their urban counterparts. However, on further interrogation, the study revealed that the fishers were facing a set of vulnerabilities that is commonly associated with the fishing profession. These vulnerabilities had substantial impacts on the livelihood system of these fishers. Using vulnerability ladders, a picture was painted depicting the severity of these vulnerabilities. It emerged that fishers were more vulnerable to existing state institutions that are designed to manage access to and the use of natural resources in the country. There are several reasons to suggest why this is the case which include, (i) the high cost of accessing the fishery, (ii) the stern measures in place that restrict access to and use of the fishery, and (iii) the punitive measures imposed for contravening rules of access and use of the fishery. Although restricting access is in line with the principle of long run sustainability of the fishery, it may threaten the development of the fishing industry and impact negatively on livelihoods of communities involved. Unlike fisheries elsewhere in the world, Lake Kariba is not viewed as a vehicle for reducing poverty and achieving food security. On the contrary, government places emphasis on preserving and enhancing the natural environment both aquatic and non-aquatic with a view to sustaining tourism. Under such a paradigm, fishing is viewed as a threat to the natural environment and requires strict management. Heavy fines are therefore imposed on users that violate the rules of access. Many of the fishers have had their properties attached after failing to raise the necessary amounts to cover the fines. By shifting away from the promotion of fisheries, government has accelerated the decline of the small-scale fishing industry on Lake Kariba, through narrowing the fishers action space and creating an environment conducive for corruption. The decline has subsequently shrunk the livelihoods base of local communities as well as many others who are associated with the fishing industry. While the sustainability of the fishery is paramount, government needs to reconsider its strategy on governing and managing fisheries on Lake Kariba. Given enough support, small-scale fisheries on Lake Kariba have the potential to contribute significantly to the country’s Gross Domestic Product. Small-scale fisheries have also proved their resilience in the wake of the severe economic crisis that Zimbabwe experienced between 2007 and 2009. During this period, there were widespread shortages of basic food items in the country and the demand for fish and fish products rose drastically. The fishers reported that there was an increase in the demand for fish during the crisis period to the extent that they could not supply enough to satisfy the market. This supports the observation by the United Nations (2010) that fisheries, in particular small-scale, can play an important role in the economy in terms of livelihoods, poverty reduction and food security. Fishing activities are also the perfect complement to other land-based livelihood activities for communities that live in close proximity to large water bodies.
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Books on the topic "Bivalves – Zimbabwe – Lake Kariba"

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D, Taylor R. Crocodile numbers on Lake Kariba, Zimbabwe and factors influencing them. Causeway, Harare, Zimbabwe: WWF Multispecies Project, 1993.

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Mhlanga, L. Vegetation studies of selected islands and adjacent mainland on Lake Kariba, Zimbabwe. Harare, Zimbabwe: Institute of Environmental Studies, University of Zimbabwe, 1999.

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Malasha, Isaac. Fishing in a bathtub: A comprehension of the conflicts in the Lake Kariba inshore fishery (Zimbabwe). Mount Pleasant, Harare, Zimbabwe: Centre for Applied Social Sciences, University of Zimbabwe, 2002.

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4

Technical Consultation on the Development and Management of the Fisheries of Lake Kariba (2nd 2004 Kariba, Zimbabwe). Report of the Second Technical Consultation on the Development and Management of the Fisheries of Lake Kariba: Kariba, Zimbabwe, 30 November- 1 December 2004. Rome: Food and Agriculture Organization of the United Nations, 2005.

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5

Jackson, J. C. Creating common pools in a lake: Planning for the community-based management of the in-shore fishery, Lake Kariba Recreational Park, Zimbabwe. Mount Pleasant, Harare: Centre for Applied Social Sciences, University of Zimbabwe, 1995.

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Olivia, Bennett, ed. Our gods never helped us again --: The Tonga people describe resettlement and its aftermath. Lusaka, Zambia: Panos Southern Africa, 2005.

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Reynolds, Pamela. Lwaano lwanyika =: Tonga book of the earth. Harare: C.C. Cousins in association with Save the Children Fund (UK), 1991.

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Reynolds, Pamela. Lwaano lwanyika =: Tonga book of the earth. London: Panos Publications Ltd., 1993.

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9

The ecology of Lake Kariba, Zimbabwe: Research proposals, activities, and reports. [Harare: s.n., 1988.

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Cousins, Colleen Crawford, and Pamela Reynolds. Lwaano Lwanyika: Tonga Book of the Earth. Harry Ransom Humanities Research Center, 1994.

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Book chapters on the topic "Bivalves – Zimbabwe – Lake Kariba"

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Hughes, David McDermott. "Owning Lake Kariba." In Whiteness in Zimbabwe, 51–69. New York: Palgrave Macmillan US, 2010. http://dx.doi.org/10.1057/9780230106338_3.

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Karenge, Lawrence, and Jeppe Kolding. "Inshore fish population and species changes in Lake Kariba, Zimbabwe." In The Impact of Species Changes in African Lakes, 245–75. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0563-7_12.

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3

Masundire, Hillary M. "Population dynamics of Bosmina longirostris (Crustacea: Cladocera) in Lake Kariba, Zimbabwe." In The Dynamics and Use of Lacustrine Ecosystems, 167–73. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2745-5_17.

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Mandima, Jimmiel J. "The food and feeding behaviour of Limnothrissa miodon (Boulenger, 1906) in Lake Kariba, Zimbabwe." In From Limnology to Fisheries: Lake Tanganyika and Other Large Lakes, 175–82. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1622-2_16.

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"Pesticide use in Zimbabwe: impact on Lake Kariba, a tropical freshwater ecosystem." In Pesticide Residues in Coastal Tropical Ecosystems, 47–53. CRC Press, 2002. http://dx.doi.org/10.1201/9780203165584-9.

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