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Journal articles on the topic 'Lake Tana'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Samallo, Johannis, Hendrik-Jan Megens, Martin De Graaf, and Ferdinand Sibbing. "Evolutionary origin of Lake Tana's (Ethiopia) small Barbus species: indications of rapid ecological divergence and speciation." Animal Biology 57, no. 1 (2007): 39–48. http://dx.doi.org/10.1163/157075607780002069.

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AbstractLake Tana, located in the north-western highlands of Ethiopia, contains a unique assemblage of cyprinid fishes. In addition to the only known intact species flock of large (max. 100 cm forklength (FL)) Labeobarbus species, the lake harbours three small (<10 cm FL) Barbus species: B. humilis Boulenger, 1902, B. pleurogramma Boulenger, 1902 and B. tanapelagius de Graaf, Dejen, Sibbing and Osse, 2000. Phylogenetic relationships of the small Barbus species of Lake Tana were investigated using the mtDNA cytochrome b gene. All small Barbus species occurring in Lake Tana are part of the 's

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2

Dereje, Tewabe. "Preliminary Survey of Water Hyacinth in Lake Tana, Ethiopia Tana, Ethiopia." Global Journal of Allergy 1, no. 1 (2015): 013–18. https://doi.org/10.17352/2455-8141.000003.

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Investigation of water hyacinth was conducted from October 27, 2011 to November 3, 2011 by interdisciplinary expedition groups. A total of 24 sites were delineated using geographical positioning system (GPS) during investigation of water hyacinth incidence along the whole periphery of Lake Tana. Water hyacinth was started from Mitreha Abawarka kebele of Gondar zuria woreda specifically around at Netseba village with an estimated of 3 hectare area coverage. Highest infestation of the weed was observed at Megech River mouth with estimated area coverage of c. 80-100 hectare. Its infestation exten

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3

Song, Chuangye, Lisanework Nigatu, Yibrah Beneye, Abdurezak Abdulahi, Lin Zhang, and Dongxiu Wu. "Mapping the vegetation of the Lake Tana basin, Ethiopia, using Google Earth images." Earth System Science Data 10, no. 4 (2018): 2033–41. http://dx.doi.org/10.5194/essd-10-2033-2018.

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Abstract. The basin of Lake Tana is one of the most important watersheds in the Nile Basin. It is of great significance to the economy and politics of Ethiopia. In the past, the natural vegetation of the Lake Tana basin was heavily damaged to facilitate the continued expansion of cropland. Vegetation must be conserved and restored to protect the natural environment and maintain the biodiversity of the Lake Tana basin. In this research, we mapped the vegetation of the Lake Tana basin through visual interpretation using high-spatial-resolution images provided by Google Earth and field survey dat

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Kebedew, Mebrahtom G., Seifu A. Tilahun, Fasikaw A. Zimale, and Tammo S. Steenhuis. "Bottom Sediment Characteristics of a Tropical Lake: Lake Tana, Ethiopia." Hydrology 7, no. 1 (2020): 18. http://dx.doi.org/10.3390/hydrology7010018.

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Sediment concentration of rivers in developing countries has been increasing greatly over the last 50 years due to the conversion of forest to continuously cultivated land with the increasing population. Few studies have addressed its effect on sedimentation and water quality of the lakes by analyzing bottom sediment characteristics. In this study, the objective was to investigate the spatial distribution (and their interrelationships) of the bottom sediment characteristics in the largest lake in Ethiopia, Lake Tana where water hyacinths have been spreading rapidly during the last decade. Sedi

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5

Zimale, Fasikaw A., Mamaru A. Moges, Muluken L. Alemu, et al. "Budgeting suspended sediment fluxes in tropical monsoonal watersheds with limited data: the Lake Tana basin." Journal of Hydrology and Hydromechanics 66, no. 1 (2018): 65–78. http://dx.doi.org/10.1515/johh-2017-0039.

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Abstract Soil erosion decreases soil fertility of the uplands and causes siltation of lakes and reservoirs; the lakes and reservoirs in tropical monsoonal African highlands are especially affected by sedimentation. Efforts in reducing loads by designing management practices are hampered by lack of quantitative data on the relationship of erosion in the watersheds and sediment accumulation on flood plains, lakes and reservoirs. The objective of this study is to develop a prototype quantitative method for estimating sediment budget for tropical monsoon lakes with limited observational data. Four

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6

Wubalem, Atalel, Teshale Woldeamanuel, and Zerihun Nigussie. "Economic Valuation of Lake Tana: A Recreational Use Value Estimation through the Travel Cost Method." Sustainability 15, no. 8 (2023): 6468. http://dx.doi.org/10.3390/su15086468.

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Lake Tana is a well-known tourist spot in northern Ethiopia that lures both domestic and foreign tourists. The lake’s value is still underrated, despite the site’s immense potential for recreation and tourism. In this study, the recreational value of Lake Tana is estimated, and the consumer characteristics associated with recreational demand are analyzed. The study employs a Zero-Truncated Poisson (ZTP) regression model for data generated by the Individual Travel Cost Method (ITCM) and draws information from 1094 on-site surveys. According to ZTP regression results, variables that are signific

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Alemu, Muluken L., Abeyou W. Worqlul, Fasikaw A. Zimale, Seifu A. Tilahun, and Tammo S. Steenhuis. "Water Balance for a Tropical Lake in the Volcanic Highlands: Lake Tana, Ethiopia." Water 12, no. 10 (2020): 2737. http://dx.doi.org/10.3390/w12102737.

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Lakes hold most of the freshwater resources in the world. Safeguarding these in a changing environment is a major challenge. The 3000 km2 Lake Tana in the headwaters of the Blue Nile in Ethiopia is one of these lakes. It is situated in a zone destined for rapid development including hydropower and irrigation. Future lake management requires detailed knowledge of the water balance of Lake Tana. Since previous water balances varied greatly this paper takes a fresh look by calculating the inflow and losses of the lake. To improve the accuracy of the amount of precipitation falling on the lake, tw

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Mina, M. V., A. N. Mironovsky, and Yu Yu Dgebuadze. "Comparative Analysis of Morphological Diversification in Large African Barbs of the Genus Barbus (Labeobarbus auctorum, Cyprinidae) and Altai Osmans of the Genus Oreoleuciscus (Leuciscidae)." Journal of Ichthyology 64, no. 1 (2024): 1–8. http://dx.doi.org/10.1134/s0032945224010065.

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AbstractThe study of diversity in characters of the skull in generalized and specialized morphotypes of the large African barbs Barbus (Labeobarbus auctorum) in Ethiopia is carried out using the multivariate analysis methods. It has been proven that in Lake Tana exhibiting great diversity in morphotypes, the eigenvector loadings on the first principal component of characters of bones, which form the jaws, compose a distinct self-standing cluster in specimens of a generalized form reaching over 15 cm in length. In barbs inhabiting other lakes, where only a generalized form is found, the lack of

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BESHERA, KEBEDE A., PHILLIP M. HARRIS, and SEMHAR K. MICHAEL. "Relative Genetic Homogeneity within a Phenotypically Diverse group: The Case of Lake Tana Labeobarbus (Cyprinidae) Species Flock, Ethiopia." Zootaxa 5301, no. 2 (2023): 182–98. http://dx.doi.org/10.11646/zootaxa.5301.2.2.

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The Lake Tana Labeobarbus species flock represents one of the world’s most famous examples of lacustrine species radiations. Previous studies of this group have resulted in the description of at least 15 species based on their differences in functional morphology and definition of two clades (lacustrine and riverine spawning clades) based on life history traits. A total of 166 fish representing 14 Labeobarbus species were genotyped using 10 lineage-specific hexaploid microsatellite loci. Six of these loci were developed for this study based on DNA sequence contigs derived from a microsatellite

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Getahun, Eshetu, Kefale Wagaw, and Omprakash Sahu. "A Comparative Study on the Cleaner Production Options for Fishery Wastes around Lake Tana." International Letters of Natural Sciences 56 (July 2016): 14–24. http://dx.doi.org/10.18052/www.scipress.com/ilns.56.14.

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Around Lake Tana, there are different types of fish processing cooperatives. These cooperatives simply dump the fish wastes (offal) to the Lake Tana which results environmental pollution for the marine ecosystems. In this study three cleaner production options such as biodiesel, biogas and animal feeding were investigated experimentally for the utilization of fishery wastes around Lake Tana. The study showed that fish species (labeobarbus, tilapia and catfish) wastes have oil yield of 28.65%, 16.35% and 5.63 % and free fatty acid content of 10.5%, 7.5% and 6.03% respectively. In the treatment

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Getahun, Eshetu, Kefale Wagaw, and Omprakash Sahu. "A Comparative Study on the Cleaner Production Options for Fishery Wastes around Lake Tana." International Letters of Natural Sciences 56 (July 8, 2016): 14–24. http://dx.doi.org/10.56431/p-sa7nw9.

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Around Lake Tana, there are different types of fish processing cooperatives. These cooperatives simply dump the fish wastes (offal) to the Lake Tana which results environmental pollution for the marine ecosystems. In this study three cleaner production options such as biodiesel, biogas and animal feeding were investigated experimentally for the utilization of fishery wastes around Lake Tana. The study showed that fish species (labeobarbus, tilapia and catfish) wastes have oil yield of 28.65%, 16.35% and 5.63 % and free fatty acid content of 10.5%, 7.5% and 6.03% respectively. In the treatment

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12

Chebud, Y., and A. Melesse. "Stage level, volume, and time-frequency information content of Lake Tana using stochastic and wavelet analysis methods." Hydrology and Earth System Sciences Discussions 7, no. 4 (2010): 5525–46. http://dx.doi.org/10.5194/hessd-7-5525-2010.

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Abstract. Lake Tana is the largest fresh water body situated in the north western highlands of Ethiopia. It serves for local transport, electric power generation, fishing, ecological restoration, recreational purposes, and dry season irrigation supply. Evidence show, the lake has dried at least once at about 15 000–17 000 BP (before present) due to a combination of high evaporation and low precipitation events. Past attempts to observe historical fluctuation of Lake Tana based on simplistic water balance approach of inflow, out-flow and storage have failed to capture well known events of drawd

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13

Endgaw, Flipos. "Socio-ecological impacts of water hyacinth, Eichhornia crassipes (MART.) in Lake Tana, Gulf of Gorgora, Ethiopia." Journal of Applied Sciences and Environmental Management 24, no. 12 (2021): 2017–25. http://dx.doi.org/10.4314/jasem.v24i12.2.

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Water hyacinth is one of the aggressive alien aquatic macrophyte threatening biodiversity, economic development and human wellbeing. Currently, the macrophyte has invaded Lake Tana and its catchment causing several socio-ecological impacts. So far, there is limited information on socio-ecological impact of water hyacinth in Lake Tana specifically gulf of Gorgora. Therefore, the main aim of this study was to assess socio-ecological impact of water hyacinth in Lake Tana gulf of Gorgora, located in North West of Ethiopia from November 2019 to January 2020. Two sampling sites (infested and non-inf

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14

Rientjes, T. H. M., B. U. J. Perera, A. T. Haile, and P. Reggiani. "Multi-objective regionalisation for lake level simulation, the case of Lake Tana in the Upper Blue Nile, Ethiopia." Hydrology and Earth System Sciences Discussions 7, no. 5 (2010): 7341–81. http://dx.doi.org/10.5194/hessd-7-7341-2010.

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Abstract. The aim in this study is to simulate lake levels of Lake Tana by solving the water balance at daily time step. Since 42% of the basin is ungauged regionalisation procedures are applied. We examine the predictive capability of a regionalisation approach that combines multi-objective calibration of a simple conceptual model and multi regression analyses to establish relations between model parameters and catchment characteristics. Recently few studies are presented on lake level simulation of Lake Tana. In these studies the water balance of the lake is closed by estimation of runoff co

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15

Mironovsky, A. N., and E. E. Slynko. "Altai Osmans of the Genus Oreoleuciscus and African Barbs of the Barbus intermedius Complex: the Common Patterns of Morphological Differences Between Piscivorous and Non-Piscivorous Forms under Sympatry Conditions." Biologiâ vnutrennih vod 17, no. 3 (2024): 401–9. http://dx.doi.org/10.31857/s0320965224030048.

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In populations of fish species of the same and of different systematic groups living in lakes of the same and of different continents the patterns of differences in factor loadings of the considered parameters of the morphology of the jaw apparatus and neurocranium on the main vectors of variability in comparison of piscivorous and non-piscivorous ecological forms almost coincides. It is shown that in the Altai osmans of the Oreoleuciscus potanini species in two lakes of the Central Asian Closed Basin, the structure of differences is almost identical to the structure of differences between the

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16

Getahun, Sewnet, and Habtamu Kefale. "Problem of Water Hyacinth (Eichhornia crassipes (Mart.)) in Lake Tana (Ethiopia): Ecological, Economic, and Social Implications and Management Options." International Journal of Ecology 2023 (December 2, 2023): 1–9. http://dx.doi.org/10.1155/2023/4618069.

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Lake Tana is Ethiopia’s largest body of fresh water, covering approximately 3,200 km2. Despite its multidisciplinary applications in Ethiopia and neighboring countries, water hyacinth (Eichhornia crassipes (Mart.) Solms) is a significant problem in this large lake. This invasive weed first appeared in Lake Tana in 2011 and quickly spread to the water’s surface over the next two to three years. In this background, this article aims at reviewing the existing knowledge on the occurrence, impact, and management options for water hyacinths in Lake Tana. Water hyacinth is one of the most dangerous w

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17

Tareke, Abebe Tesfaye. "Water Security Problems of Lake Tana and Its Possible Management Options: A Review." East African Journal of Environment and Natural Resources 6, no. 1 (2023): 473–90. http://dx.doi.org/10.37284/eajenr.6.1.1631.

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Lake Tana is the largest lake in Ethiopia and accounts for 50% of the country's freshwater resources. It provides a unique habitat for biodiversity and plays an economic role via tourism, electricity, agriculture, fishery, and, most importantly, it provides drinking water to the local inhabitants. Because of its immense water resource potential for socioeconomic development, Lake Tana has been identified as a major economic corridor in the country. Given the importance of the lake to the region and nation’s economy, human health, and livelihoods, assessing the water security problems of the la

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18

Tegegne, Getachew, Dr Ing Dereje Hailu, and Prof Dr S. Moses Aranganathan. "Evaluation of Operation of Lake Tana Reservoir Future Water Use under Emerging Scenario with and without climate Change Impacts, Upper Blue Nile." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 4, no. 2 (2005): 654–63. http://dx.doi.org/10.24297/ijct.v4i2c2.4184.

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This paper presents simulation of Lake Tana reservoir future water use under emerging scenario with and without climate change impacts. Two different development and climate change scenarios were developed to simulate Lake Tana water level i.e., i) Base line scenario (1991-2000) ,ii) Future development scenario on short term periods(2031-2040) , and ii) Future development scenario on long term periods (2091-2100). River head flow estimated by Soil and Water Assessment Tool (SWAT) was used as an input to Water Evaluation And Planning (WEAP) model to simulate the Lake level for each scenario. Ba

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Kebedew, Mebrahtom G., Seifu A. Tilahun, Fasikaw A. Zimale, Mulugeta A. Belete, Mekete D. Wosenie, and Tammo S. Steenhuis. "Relating Lake Circulation Patterns to Sediment, Nutrient, and Water Hyacinth Distribution in a Shallow Tropical Highland Lake." Hydrology 10, no. 9 (2023): 181. http://dx.doi.org/10.3390/hydrology10090181.

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Excess sediment and nutrient losses from intensifying agriculture degrade water quality and boost plant growth. The relationship between circulation patterns, spatial water quality degradation, and water hyacinth infestation is not adequately studied. The objective of this study is, therefore, to investigate the effect of lake circulation patterns on sediment and nutrient distribution and its implication on the spread of water hyacinth in a tropical lake. This study was carried out in Lake Tana, the largest freshwater lake in Ethiopia, where sediment and nutrient concentrations are increasing,

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Kebedew, Mebrahtom G., Aron A. Kibret, Seifu A. Tilahun, Mulugeta A. Belete, Fasikaw A. Zimale, and Tammo S. Steenhuis. "The Relationship of Lake Morphometry and Phosphorus Dynamics of a Tropical Highland Lake: Lake Tana, Ethiopia." Water 12, no. 8 (2020): 2243. http://dx.doi.org/10.3390/w12082243.

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Lakes hold most of the world’s fresh surface water resources. Safeguarding these resources from water quality degradation requires knowledge of the relationship between lake morphometry and water quality. The 3046-km2 Lake Tana in Ethiopia is one of the water resources in which the water quality is decreasing and water hyacinths have invaded. The objective of this study is to understand the interaction between the lake morphometry and water quality and specifically the phosphorus dynamics and their effect on the water hyacinths. A bathymetric survey was conducted in late 2017. Various morphome

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Chebud, Yirgalem A., and Assefa M. Melesse. "Modelling lake stage and water balance of Lake Tana, Ethiopia." Hydrological Processes 23, no. 25 (2009): 3534–44. http://dx.doi.org/10.1002/hyp.7416.

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Belay, Assefa, Araya Mengistu, and Tadlo Awoke. "A Study on the Factors Associated with Fish Production in Lake Tana, Ethiopia." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 12 (2024): 223–30. http://dx.doi.org/10.56557/upjoz/2024/v45i124120.

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The research was conducted cross-sectionally in North-Western part of Lake Tana, from October 2019-May 2020 where three commercially fish species are found with the objective of identifying the determinants of fish production in Lake Tana. The study used random sampling technique in three fishery groups and a questionnaire employed to collect the required information. A total of 95 fishers were interviewed, of which 80% of them were males and aged between 18-25 years. Most fisher individuals were elementary school. High environmental temperature, market problem, illegal fishing, and transporta

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Bereded, Negash Kabtimer, Getachew Beneberu Abebe, Solomon Workneh Fanta, et al. "The Impact of Sampling Season and Catching Site (Wild and Aquaculture) on Gut Microbiota Composition and Diversity of Nile Tilapia (Oreochromis niloticus)." Biology 10, no. 3 (2021): 180. http://dx.doi.org/10.3390/biology10030180.

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The gut microbiota of fishes is known to play an essential role in diverse aspects of host biology. The gut microbiota of fish is affected by various environmental parameters, including temperature changes, salinity and diet. Studies of effect of environment on gut microbiota enables to have a further understanding of what comprises a healthy microbiota under different environmental conditions. However, there is insufficient understanding regarding the effects of sampling season and catching site (wild and aquaculture) on the gut microbiota of Nile tilapia. This study characterised gut microbi

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Taffese, Tewodros, Seifu Tilahun, and Tammo Steenhuis. "Phosphorus Modeling, in Lake Tana Basin, Ethiopia." Journal of Environment and Human 2014, no. 2 (2014): 47–55. http://dx.doi.org/10.15764/eh.2014.02007.

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Poppe, Ludwin, Amaury Frankl, Jean Poesen, et al. "Geomorphology of the Lake Tana basin, Ethiopia." Journal of Maps 9, no. 3 (2013): 431–37. http://dx.doi.org/10.1080/17445647.2013.801000.

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Tewabe, Dereje. "Status of Lake Tana Commercial Fishery, Ethiopia." ABC Research Alert 1, no. 3 (2013): Ethiopia. http://dx.doi.org/10.18034/ra.v1i3.279.

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The status of Lake Tana Fishery was evaluated from analysis of commercial catch data of number I fishers cooperative. The data collection has been carried out from September 2003 to September 2009. Results indicated that Nile tilapia (Oreochromis niloticus), African catfish (Clarias gariepinus) and species flock of endemic, large Labeobarbus spp. were the three main species groups targeted by commercial gillnet fishery of Lake Tana and form 65 %, 20 % and 15 % of the annual catch compositions of fish species during the study period respectively. There was significant variability among sampling

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Taye, M. T., V. Ntegeka, N. P. Ogiramoi, and P. Willems. "Assessment of climate change impact on hydrological extremes in two source regions of the Nile River Basin." Hydrology and Earth System Sciences 15, no. 1 (2011): 209–22. http://dx.doi.org/10.5194/hess-15-209-2011.

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Abstract. The potential impact of climate change was investigated on the hydrological extremes of Nyando River and Lake Tana catchments, which are located in two source regions of the Nile River basin. Climate change scenarios were developed for rainfall and potential evapotranspiration (ETo), considering 17 General Circulation Model (GCM) simulations to better understand the range of possible future change. They were constructed by transferring the extracted climate change signals to the observed series using a frequency perturbation downscaling approach, which accounts for the changes in rai

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Dersseh, Kibret, Tilahun, et al. "Potential of Water Hyacinth Infestation on Lake Tana, Ethiopia: A Prediction Using a GIS-Based Multi-Criteria Technique." Water 11, no. 9 (2019): 1921. http://dx.doi.org/10.3390/w11091921.

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Water hyacinth is a well-known invasive weed in lakes across the world and harms the aquatic environment. Since 2011, the weed has invaded Lake Tana substantially posing a challenge to the ecosystem services of the lake. The major factors which affect the growth of the weed are phosphorus, nitrogen, temperature, pH, salinity, and lake depth. Understanding and investigating the hotspot areas is vital to predict the areas for proper planning of interventions. The main objective of this study is therefore to predict the hotspot areas of the water hyacinth over the surface of the lake using the ge

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Tuzovskij, P. V., and A. E. Zhokhov. "Two new water mite species of the genus Limnesia Thor from Ethiopia (Acariformes: Limnesiidae)." Zoosystematica Rossica 16, no. 1 (2007): 9–14. http://dx.doi.org/10.31610/zsr/2007.16.1.9.

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Zhokhov, A. E., D. A. Miretskaya, M. N. Pugacheva, and A. Tessema. "Two new metacercariae of the genus Apatemon (Trematoda: Strigeidae) from fi shes of Lake Tana, Ethiopia." Zoosystematica Rossica 17, no. 1 (2008): 139–43. http://dx.doi.org/10.31610/zsr/2008.17.1.139.

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Rientjes, T. H. M., B. U. J. Perera, A. T. Haile, P. Reggiani, and L. P. Muthuwatta. "Regionalisation for lake level simulation – the case of Lake Tana in the Upper Blue Nile, Ethiopia." Hydrology and Earth System Sciences 15, no. 4 (2011): 1167–83. http://dx.doi.org/10.5194/hess-15-1167-2011.

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Abstract. In this study lake levels of Lake Tana are simulated at daily time step by solving the water balance for all inflow and outflow processes. Since nearly 62% of the Lake Tana basin area is ungauged a regionalisation procedure is applied to estimate lake inflows from ungauged catchments. The procedure combines automated multi-objective calibration of a simple conceptual model and multiple regression analyses to establish relations between model parameters and catchment characteristics. A relatively small number of studies are presented on Lake Tana's water balance. In most studies the w

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Mina, M. V., A. N. Mironovsky, and Yu Dgebuadze. "Lake Tana large barbs: phenetics, growth and diversification." Journal of Fish Biology 48, no. 3 (1996): 383–404. http://dx.doi.org/10.1111/j.1095-8649.1996.tb01435.x.

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Dgebuadze, Yu Yu, M. V. Mina, S. S. Alekseyev, and A. S. Golubtsov. "Observations on reproduction of the Lake Tana barbs." Journal of Fish Biology 54, no. 2 (1999): 417–23. http://dx.doi.org/10.1111/j.1095-8649.1999.tb00840.x.

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Geremew, Akewake, Abebe Getahun, and Eshete Dejen. "Reproductive biology of Garra regressus and Garra tana (Cypriniformes: Cyprinidae) from Lake Tana, Ethiopia." Journal of Threatened Taxa 7, no. 6 (2015): 7223–33. http://dx.doi.org/10.11609/jott.o3958.7223-33.

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Ricko, Martina, James A. Carton, and Charon Birkett. "Climatic Effects on Lake Basins. Part I: Modeling Tropical Lake Levels." Journal of Climate 24, no. 12 (2011): 2983–99. http://dx.doi.org/10.1175/2010jcli3602.1.

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Abstract The availability of satellite estimates of rainfall and lake levels offers exciting new opportunities to estimate the hydrologic properties of lake systems. Combined with simple basin models, connections to climatic variations can then be explored with a focus on a future ability to predict changes in storage volume for water resources or natural hazards concerns. This study examines the capability of a simple basin model to estimate variations in water level for 12 tropical lakes and reservoirs during a 16-yr remotely sensed observation period (1992–2007). The model is constructed wi

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Sitotaw, Baye, Belayneh Daniel, Mulugeta Kibret, and Workiye Worie. "Seasonal Dynamics in Bacteriological and Physicochemical Water Quality of the Southern Gulf of Lake Tana." Scientific World Journal 2022 (September 27, 2022): 1–8. http://dx.doi.org/10.1155/2022/7317702.

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Freshwater lakes are important sources of water for domestic, agricultural, and industrial uses. Lake Tana offers a range of ecosystem services to the surrounding communities. However, this lake is facing deterioration in water quality due to pollution caused by anthropogenic influences. Therefore, regular monitoring of key water quality parameters is critical to understanding the water quality status of the lake. This study aimed to assess the seasonal fluctuation of water quality of the Southern Gulf of Lake Tana using indicator bacteria and some physicochemical parameters. A total of 48 wat

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Tigabu, Tibebe B., Georg Hörmann, Paul D. Wagner, and Nicola Fohrer. "Statistical analysis of rainfall and streamflow time series in the Lake Tana Basin, Ethiopia." Journal of Water and Climate Change 11, no. 1 (2018): 258–73. http://dx.doi.org/10.2166/wcc.2018.008.

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Abstract This research focuses on the statistical analyses of hydrometeorological time series in the basin of Lake Tana, the largest freshwater lake in Ethiopia. We used autocorrelation, cross-correlation, Mann–Kendall, and Tukey multiple mean comparison tests to understand the spatiotemporal variation of the hydrometeorological data in the period from 1960 to 2015. Our results show that mean annual streamflow and the lake water level are varying significantly from decade to decade, whereas the mean annual rainfall variation is not significant. The decadal mean of the lake outflow and the lake

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Haile, Alemseged T., Tom Rientjes, Ambro Gieske, and Mekonnen Gebremichael. "Rainfall Variability over Mountainous and Adjacent Lake Areas: The Case of Lake Tana Basin at the Source of the Blue Nile River." Journal of Applied Meteorology and Climatology 48, no. 8 (2009): 1696–717. http://dx.doi.org/10.1175/2009jamc2092.1.

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Abstract The water resource of the Blue Nile River is of key regional importance to the northeastern African countries. However, little is known about the characteristics of the rainfall in the basin. In this paper, the authors presented the space–time variability of the rainfall in the vicinity of Lake Tana, which is the source of the Blue Nile River. The analysis was based on hourly rainfall data from a network of newly installed rain gauges, and cloud temperature indices from the Meteosat Second Generation (MSG–2) Spinning Enhanced Visible and Infrared Imager (SEVIRI) satellite sensor. The

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Mina, Mikhail V., Tesfaye Wudneh, and Ferdinand A. Sibbing. "In Lake Tana, a Unique Fish Fauna Needs Protection." BioScience 45, no. 11 (1995): 772–75. http://dx.doi.org/10.2307/1312629.

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Richard Bates, C., Henry F. Lamb, and Mohammed Umer. "High-resolution seismic investigation of Lake Tana, northern Ethiopia." Near Surface Geophysics 5, no. 4 (2007): 243–50. http://dx.doi.org/10.3997/1873-0604.2007006.

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Smirnov, S. V., D. V. Kapitanova, V. B. Borisov, Belay Abdissa, and F. N. Shkil. "Lake Tana large barbs diversity: Developmental and hormonal bases." Journal of Ichthyology 52, no. 11 (2012): 861–80. http://dx.doi.org/10.1134/s0032945212110082.

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Berrebi, P., and D. Valiushok. "Genetic divergence among morphotypes of Lake Tana (Ethiopia) barbs." Biological Journal of the Linnean Society 64, no. 3 (1998): 369–84. http://dx.doi.org/10.1111/j.1095-8312.1998.tb00338.x.

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Lemma, Hanibal, Amaury Frankl, Mekete Dessie, Jean Poesen, Enyew Adgo, and Jan Nyssen. "Consolidated sediment budget of Lake Tana, Ethiopia (2012–2016)." Geomorphology 371 (December 2020): 107434. http://dx.doi.org/10.1016/j.geomorph.2020.107434.

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Kitching, Roger. "Entomologist's Monthly Magazine First Paper Reminiscence: Lake Tana 1965." Entomologist's Monthly Magazine 159, no. 2 (2023): 96–97. http://dx.doi.org/10.31184/m00138908.1592.4185.

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Nerae, Meareg D., Fasikaw A. Zimale, Tammo S. Steenhuis, and Mebrahtom G. Kebedew. "Using Two Water Quality Indices for Evaluating the Health and Management of a Tropical Lake." Hydrology 11, no. 12 (2024): 212. https://doi.org/10.3390/hydrology11120212.

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With increasing pressure on freshwater resources in developing countries due to population growth, further research and potential interventions are crucial. Lake Tana, located in the headwaters of the Blue Nile, serves as a critical example of these precious freshwater resources. This study evaluated the water quality of Lake Tana for both ecological health and drinking purposes using the Arithmetic Weighted Water Quality Index (AW WQI) and the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI). Samples were collected from 20 lake sampling stations four times betwe

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Worqlul, Abeyou W., Essayas K. Ayana, Yihun T. Dile, et al. "Spatiotemporal Dynamics and Environmental Controlling Factors of the Lake Tana Water Hyacinth in Ethiopia." Remote Sensing 12, no. 17 (2020): 2706. http://dx.doi.org/10.3390/rs12172706.

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The largest freshwater lake in Ethiopia, Lake Tana, has faced ecological disaster due to water hyacinth (Eichhornia crassipes) infestation. The water hyacinth is a threat not only to the ecology but also to the socioeconomic development of the region and cultural value of the lake, which is registered as a UNESCO reserve. This study aims to map the spatiotemporal dynamics of the water hyacinth using high-resolution PlanetScope satellite images and assesses the major environmental variables that relate to the weed spatial coverage dynamics for the period August 2017 to July 2018. The plausible

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Dagninet, Amare. "Fishing Condition and Fishers Income: The case of Lake Tana, Ethiopia." International Journal of Aquaculture and Fishery Sciences 4, no. 1 (2018): 006–9. https://doi.org/10.17352/2455-8400.000035.

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Fishery provides a multitude of benefits ranging from employment to food security. Investigating the factors affecting fishing income and the fishing environment are crucial entry points for efficiency maximization intervention. A survey was conducted in all Woredas’ adjacent to Lake Tana. Data was gathered using household survey and focus group discussions and analyzed by a linear regression model. The results indicated that the fishery in Lake Tana is comprised of diverse individuals in relation to occupation, engagement intensity and membership to cooperatives. Fish related income was

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Dessie, Mekete, Niko E. C. Verhoest, Valentijn R. N. Pauwels, et al. "Water balance of a lake with floodplain buffering: Lake Tana, Blue Nile Basin, Ethiopia." Journal of Hydrology 522 (March 2015): 174–86. http://dx.doi.org/10.1016/j.jhydrol.2014.12.049.

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de Graaf, Martin, Eshete Dejen, Jan W. M. Osse, and Ferdinand A. Sibbing. "Adaptive radiation of Lake Tana's (Ethiopia) Labeobarbus species flock (Pisces, Cyprinidae)." Marine and Freshwater Research 59, no. 5 (2008): 391. http://dx.doi.org/10.1071/mf07123.

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Studying species flocks (e.g. Darwin’s finches, Caribbean anoline lizards, East African cichlid fishes) has proven to be highly successful in understanding the forces driving speciation. The only known, intact species flock of cyprinid fishes, the 15 Labeobarbus species in Lake Tana (Ethiopia), includes eight piscivorous species. Piscivory is a rare specialisation among the highly successful (>2000 species) but mostly benthivorous Cyprinidae. The extent and mechanisms of diversification of this remarkable Labeobarbus species flock, particularly among the unexpected piscivorous species, are

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Zhokhov, A. E. "A new gorgoderid trematode of the genus Phyllodistomum (Digenea: Gorgoderidae) from Clarias gariepinus (Actinopterygii: Clariidae) in Lake Tana, Ethiopia." Zoosystematica Rossica 19, no. 1 (2010): 9–12. http://dx.doi.org/10.31610/zsr/2010.19.1.9.

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Phyllodistomum tana sp. nov. is described from the ureters of Clarias gariepinus from Lake Tana, Ethiopia. This species is distinguished from its congeners in Africa in having an oblong body shape, transverse loops of the uterus between the posterior margin of ventral sucker and the vitelline follicles, and the localization exclusively in the ureters of C. gariepinus. The new species differs from P. bavuri and P. vanderwaali in the larger size of body, the position of the testes with respect to the ovary and with each other, the lobed vitelline follicles and the sucker ratio.

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