Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study

Hayelom Berhe Dagnaw

doi:doi:10.11648/j.fem.20210704.11

| Peer-Reviewed

Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study

Hayelom Berhe Dagnaw

Published in Frontiers in Environmental Microbiology (Volume 7, Issue 4)

Received: 4 November 2021 Accepted: 22 November 2021 Published: 27 November 2021

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

The objective of this review article was to summarize the current impacts and its implications of environmental pollution on the fisheries sector in Ethiopian fisheries. The materials for this review were kinds of literature (published and unpublished) including internet access and personal experiences were used for the source to obtain applicable data. Ethiopia has a potential source of water used for fisheries and irrigation-based agriculture. The Ethiopian Rift Valley is one of the potential sources used for fisheries purposes and it is also the most environmentally vulnerable water source in the country. Climate changes and environmental pollutions affect the fisheries and aquaculture sector directly by influencing the fish stocks and the comprehensive supply of fish for consumption. In Ethiopia, environmental pollutions are significantly affected the fisheries sector, especially in the Rift valley areas which come from different sources. 92.8% of the liquid sewages released from Addis Ababa city enter into rivers and rain-water channels having a chain with Lakes along with the downstream with above the maximum permissible levels of BOD and COD. And, applications of commercial agricultural fertilizers including pesticides and floriculture significantly affected the water qualities of Ethiopian water bodies especially the central Rift Valley lakes and, currently, the affluence and availabilities including the fish quality and the ecosystem services under the down streams are found at risk. The accumulation of nutrients affects biodiversity and fisheries. Under Rift valley lakes, 73% of the fish landing is sold nearby markets and the consumption of fish that are contaminated through different concentrations of heavy metals above permissible levels is going to be toxic for human beings. Therefore, the government and respective bodies should give more emphasis on the mitigations and management’s especially with agricultural, floriculture, and urbanization related waste entered into the water bodies; affects the ecosystem and the fishery sector in the country.

Published in	Frontiers in Environmental Microbiology (Volume 7, Issue 4)
DOI	10.11648/j.fem.20210704.11
Page(s)	85-95
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Environment, Pollution, Climate Change, Fisheries, Water Bodies, Ethiopia

References

[1]	Awoke T. (2015). Fish species diversity in major river basins of Ethiopia: A review. World Journal of Fish and Marine Sciences 7 (5): 365-374.
[2]	Utaile Y, Sulaiman (2016). Assessment of water quality parameters of Lake Chamo-implications for freshwater fishes, Gamo Gofa Zone, Southern Ethiopia. Journal of Hill Agriculture 7 (2): 237-241.
[3]	Awulachew SB, Yilma AD, Loulseged M, Loiskandl W, Ayana M, Alamirew T. (2007). Water Resources and Irrigation Development in Ethiopia. Working Paper 123. Colombo, Sri Lanka: International Water Management Institute.
[4]	Tesfaye G. and wolf, M. (2014). The state of inland fisheries in Ethiopia: A synopsis with updated estimates of potential yield. Ecohydrology and hydro biology 14 (2014), 200-2019.
[5]	Janko A (2013). Assessment of fish products demand in some water bodies of Oromia, Ethiopia. International Journal of Agricultural Science 3 (8): 628-632.
[6]	Janko A (2014). Fish Production, Consumption and Management in Ethiopia. International Journal of Economics and Management 3: 183.
[7]	Hayelom B. and Eyob B. (2021). Understanding fisheries’Contribution for food and nutrition security in Ethiopia: A review study; Global Scientific Journal, Volume 9, Issue 4, April 2021, Online: ISSN 2320-9186, www.globalscientificjournal.com.
[8]	Abrehet KM, Shewit G, Belayneh A (2015). Effects of Bahir Dar Textile Factory Effluents on the Water Quality of the Head Waters of Blue Nile River. Ethiopia. International Journal of Environmental Analytical Chemistry 7 p.
[9]	Ali Kh, Saber A, El-Shafai, Farag A, Samhan, Wagdy KB. (2008). Effect of water pollution on expression of immune response genes of Soleaaegyptiaca in Lake Qarun. African Journal of Biotechnology 7 (10): 1418-1425.
[10]	Baron JS, Poff NL, Angermeier PL, Dahm CN, Gleick PH, Hairston NG, Jackson RB, Johnston CA, Richter BD, Stenman AD. (2002). Meeting ecological and societal needs for freshwater. Ecological Applications12: 1247–1260. https://doi.org/10.1890/10510761(2002)012[1247:MEASNF]2.0.CO;2.
[11]	Ansara-Ross et al. 2012). Ansara-Ross TM, Wepener V, Van den Brink PJ, Ross MJ. 2012. Pesticides in South African fresh waters. African Journal of Aquatic Science37: 1–16. https://doi.org/10.2989/16085914.2012.666336.
[12]	The handbook for management and restoration of aquatic ecosystems, (2015).
[13]	Beyene A, Addis T, Kifle D, Legesse W, Kloos H, Triest L. (2009). Comparative study of diatoms and macroinvertebrates as indicators of severe water pollution: Case study of the Kebena and Akaki rivers in Addis Ababa, Ethiopia. Ecological indicators 9: 381–392. https://doi.org/10.1016/j.ecolind.2008.05.001. Bird Life International. 2019. Country profile: Ethiopia. A.
[14]	Abong’o et al. 2015; Abong’o DA, Wandiga SO, Jumba IO, Van den Brink PJ, Naziriwo BB, Madadi VO, Wafula GA, Nkedi-Kizza P, Kylin H. (2015). Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya. African Journal of Aquatic Science40: 373–392. https://doi.org/10.2989/16085914.2015.1113397.
[15]	Teklu et al. 2016); Teklu BM, Adriaanse PI, Van den Brink PJ. (2016). Monitoring and risk assessment of pesticides in irrigation systems in Debra Zeit, Ethiopia. Chemosphere161: 280–291. https://doi.org/10.1016/j. chemosphere.07.031.
[16]	Maltby L, Van den Brink PJ, Faber JH, Marshall S. (2018). Advantages and challenges associated with implementing an ecosystem services approach to ecological risk assessment for chemicals. Science of the Total Environment 621: 1342–1351. https://doi.org/10.1016/j.scitotenv.2017.10.094.
[17]	Bekele J, Hussien D. (2015). Prevalence of Internal Parasites of Oreochromis niloticus and Clarias gariepinus Fish Species in Lake Ziway, Ethiopia. Journal of Aquaculture Research &Development 6: 1–4.
[18]	Hirpo LA. (2016). Current status and trends of fishes and fishery of a shallow rift valley lake, Lake Ziway, Ethiopia PhD thesis, AddisnAbaba University, Ethiopia.
[19]	Abera L, Getahun A, Lemma B. (2018). Changes in Fish Diversity and Fisheries in Ziway-Shala Basin: The Case of Lake Ziway, b Ethiopia. Journal of Fisheries & Livestock Production 6: 1–7.
[20]	Estifanos KT. (2008) Integrated assessment of ecosystem services and stakeholder analysis of Abiyata-Shalla Lakes national park, Ethiopia. m MSc Thesis in Environmental Sciences. Wageningen University.
[21]	Goraw Goshu, A. A. Koelmans and J. J. M. de Klein (2017). Water quality of Lake Tana basin, Upper Blue Nile, Ethiopia. A Review of Available Data. © Springer International Publishing Switzerland 2017. K. Stave et al. (eds.), Social and Ecological System Dynamics, AESS Interdisciplinary Environmental Studies and Sciences Series, DOI 10.1007/978-3-319-45755-0_10.
[22]	Ramamohana Reddy Reddy Appannagari. (2017). Environmental pollution causes and consequences: a study. North Asian International Research Journal of Social Science & Humanities ISSN: 2454-9827 Vol. 3, Issue 8, Aug. 2017.
[23]	Zinabu G. and Zerehun D. (2002). The chemical composition of the effluent from Awasa Textile Factory and its effects on aquatic biota. SINET: Ethiop. J. Sci., 25, 263-274.
[24]	Kebede A, Meko T, Hussein A, Tamiru Y. (2017) BReview on Opportunities and Constraints of Fishery in Ethiopia. Int J Poul Page 3 of Fish Sci. 1 (1): 1-8. DOI: 10.15226/2578-1898/1/1/00104.
[25]	Dereje T. (2014). Spatial and temporal distributions and some biological aspects of commercially important fish species of Lake Tana, Ethiopia. J Coastal Life Med.; 2 (8): 589-595.
[26]	Fisheries: history, science, and management. pp. 121-129. In: water encyclopedia: surface and agriculture water, Jay H. Lehr and Jack Keely, editors, John Wiley and Sons, Inc, Publishers, New York, 781pp.
[27]	Aschalew L., Zenebe T. (2018). Fishery and aquaculture research in Ethiopia: Challenges and future Directions. Conference paper, Agricultural Research for Ethiopian Renaissance, challenges, opportunities and directions https://www.researchgate.net/publication/331565203.
[28]	SEI, IUCN, IISD. (2003). Intercooperation Livelihoods and climate change: combining disaster risk reduction, natural resource management and climate change adaptation in a new approach to the reduction of vulnerability and poverty. Accessed 10/05/04. Available from: /http://iisd.org/publications/ publication. asp? pno=529S.
[29]	Arntz WE, Gallardo VA, Gutierrez D, Isla E, Levin LA, Mendo J, et al. (2006). ElNin˜o and similar perturbation effects on the benthos of the Humboldt, California, and Benguela Current up welling ecosystems. Advancesin Geosciences; 6: 243–65.
[30]	Cheung WWL, Lam VWY, Sarmiento JL, Kearney K, Watson R, Pauly D (2008). Projecting global marine biodiversity impacts under climate change scenario. Fish and Fisheries; 2009, DOI 10.1111/j.1467-2979.2008.00315.x.
[31]	Bridges KW et al., 2009. Bridges KW, McClatchey WC (2009). Living on the margin: ethnoecological insights from Marshall Islanders at Rongelap atoll. Global Environmental Change; 19 (2): 140–6.
[32]	Ogutu-Ohwayo R, Hecky RE, Cohen AS, Kaufman L (1997). Human impacts on the African Great Lakes. Environmental Biology of Fishes; 50 (2): 117–131.
[33]	National Meteorological Agency (NMA) (2007). National Meteorology Agency: Final Report on Evaluation Criteria for Identifying High Priority Adaptation Activities prepared by B and M Development Consultants for NMA. Addis Ababa, Ethiopia.
[34]	National Metrological Agency (2001). National Meteorological Agency (NMA) (2001). Initial National Communication of Ethiopia to the United Nations Framework Convention on Climate Change, Addis Ababa: NMSA.
[35]	McSweeney C, Lizcano G, New M, Lu X. (2010). The UNDP Climate Change Country Profiles. Available via http://journals. ametsoc.org/doi/abs/10.1175/2009BAMS2826.1. Accessed on 10, May 2015.
[36]	Yohannes G. and Mebratu K. (2009). Local innovation in climate-change adaptation by Ethiopian pastoralists: PROLINNOVA–Ethiopia and Pastoralist Forum Ethiopia (PFE), Final report. Addis Ababa, Ethiopia.
[37]	Edwards-Jones, G., Plassmann, K. and Harris, I. M. (2009). Carbon foot printing of lamb and beef production systems: Insights from an empirical analysis of farms in Wales, UK. Journal of Agricultural Sciences, 147: 707-719.
[38]	UNDP Ethiopia (2011). Framework for UNDP Ethiopia’s Climate Change, Environment, and Disaster Risk Management Portfolio.
[39]	World fish center, policy brief (2007). The threat to fisheries and aquaculture from climate change, World fish Center, policy brief, 2007.
[40]	Gudeta, D. T. (2012). Socio-economic and Environmental Impact of Floriculture Industry in Ethiopia, 1–55. Retrieved from http://lib.ugent.be/fulltxt/RUG01/001/894/550/RUG01- 001894550_2012_0001_AC.pdf.
[41]	Jansen HC, Harmsen J (2011). Pesticide monitoring in the Central Rift Valley 2009-2010. Report 2083. Alterra, Wageningen, http://library. wur.nl/WebQuery/clc/1966024.
[42]	Demeke F. (2018). Thesis on Water Quality Analysis and Pollution Prevention Options of Lake Ziway, Around Ziway City, Unpublished M.Sc. thesis paper, school of chemical and bioengineering; environmental engineering postgraduate program, Addis Ababa University Addis Ababa institute of technology.
[43]	Central Stastical Agency (CSA, 2007). Population and Housing Census of Ethiopia: Administrative Report.
[44]	Central Stastical Agency (CSA, 2013). Report on Large and Medium Scale Manufacturing and Electricity Industry Survey. Addis Ababa.
[45]	Alemayehu, T. (2006). Heavy Metal Concentration in the Urban Environment of Addis Ababa, Ethiopia. Soil and Sediment Contamination: An International Journal, 15, 591–602.
[46]	Melaku, S., Wondimu, T., Dams, R., &Moens, L. (2004). Simultaneous Determination of Trace Elements in Tinishu Akaki River Water Sample, Ethiopia, by ICP-MS. Can. J. Anal. Sci. Spectros., 49, 374–384.
[47]	Mekonnen, K. N., Ambushe, A. A., Chandravanshi, B. S., &Redi-Abshiro, M. (2014). Assessment of potentially toxic elements in Swiss chard and sediments of Akaki River, Ethiopia. Toxicological and Environmental Chemistry, 96, 1501–1515.
[48]	Aschale, M., Sileshi, Y., Kelly-quinn, M., & Hailu, D. (2016). Evaluation of potentially toxic element pollution in the benthic sediments of the water bodies of the city of Addis Ababa, Ethiopia. Biochemical Pharmacology, 4, 4173–4183.
[49]	Castro-González, M. I., & Méndez-Armenta, M. (2008). Heavy metals: Implications associated to fish consumption. Environmental Toxicology and Pharmacology, 26, 263–271.
[50]	Ayenew, T., & Legesse, D. (2007). The changing face of the Ethiopian rift lakes and their environs: Call of the time. Lakes& Reservoirs: Research & Management, 12, 149–165.
[51]	Food and Agriculture Organization of the United Nations, (FAO, 2011). Fishery and aquaculture country profiles Ethiopia, http://www.fao.org/fishery/countrysector/FI-CP_ET/en.
[52]	Tüzen, M (2003). Determination of heavy metals in fish samples of the middle Black Sea (Turkey) by graphite furnace atomic adsorption spectrometry. Food Chem. 80 (1): 119-123.
[53]	Ali, AA; Elazein, EM; Alian, MA (2011). Investigation of heavy metals pollution in water, sediment and fish at Red Sea-Jeddah Coast- KSA at two different locations. J. Appl. Environ. Biol. Sci. 1 (12): 630-637.
[54]	Henry F, Amara R, Courcot L, Lacouture D, Bertho ML. [2004]. Heavy metals in four fish species from the French coast of the Eastern English Channel and Southern Bight of the North Sea. Environ Int 2004; 30: 675–83.
[55]	Mesfin M T., Carlos Eduardo V. C., Elias D., and Sindern S. (2012). Assessment of heavy metals in water samples and tissues of edible fish species from Awassa and Koka Rift Valley Lakes, Ethiopia. Environmental Monitoring and Assessment • July 2012 DOI: 10.1007/s10661-012-2777-8.
[56]	Asmare E, Demissie S, Tewabe D (2016). Fisheries of Jemma and Wonchit Rivers: As a Means of Livelihood Diversification and its Challenges in North Shewa Zone, Ethiopia. Fish Aqua J 7: 182. doi: 10.4172/2150-3508.1000182.
[57]	Abraha Gebrekidan Asgedom1., Mulu Berhe Desta., and Yirgaalem Weldegebriel Gebremedhin Abraha et al (2012). Bioaccumulation of Heavy Metals in Fishes of Hashenge Lake, Tigray, Northern Highlands of Ethiopia. American Journal of Chemistry 2012, 2 (6): 326-334 DOI: 10.5923/j.chemistry.20120206.06.
[58]	Fuad A. And Gelaneh WM. (2017). Determination of heavy metals concentrations within the ever growing Lake Baseka, Ethiopia using spectrophotometric technique. African Journal of Environmental Science and Technology. Vol. 11 (3), pp. 146-150, March 2017. DOI: 10.5897/AJEST2016.2225 Article Number: 44A7D1E63034 ISSN 1996-0786.
[59]	Asefa W, Beranu T (2015) Levels of Some Trace Metals in Fishes Tissues, Water and Sediment at Tendaho Water Reservoir, Afar Region, Ethiopia. J Environ Anal Toxicol 5: 313. doi: 10.4172/2161-0525.1000313.
[60]	Dugasa G. and EndaleT. (2018). Determination of Some Selected Heavy Metals in Water, Oreochromis Niloticus and Labeobarbus Intermedius Samples from Abaya and Chamo Lakes. World Journal of Fish and Marine Sciences 10 (6): 01-11, 2018. ISSN 2078-4589 DOI: 10.5829/idosi.wjfms.2018.01.11.
[61]	Larissa D., Mesfin M., Elias D., Carlos EV., Sven S. (2012). Assessment of heavy metals in water samples and tissues of edible fish species from Awassa and Koka Rift Valley Lakes, Ethiopia Article in Environmental Monitoring and Assessment Environ Monit Assess DOI 10.1007/s10661-012-2777-8.
[62]	Gure, A; Kedir, K; Aburo, F (2019). Heavy Metal Concentrations in Fish Tissues from Gilgel Gibe (I) Hydroelectric Dam Reservoir, Ethiopia. Journal of Applied Science and Environmental management. Vol. 23 (8) 1411-1416 August 2019.
[63]	WWAP. (2017). The United Nations World Water Development Report 2017: Wastewater, the untapped resource. United Nations World Water Assessment Programme (WWAP). Paris, United Nations Educational, Scientific and Cultural Organization.
[64]	UNEP (2016). A snapshot of the world’s water quality: towards a global assessment. Nairobi, United Nations Environment Programme (UNEP).
[65]	Food and Agricultural Organization (FAO, 2016a). FAOSTAT. Database. Available at http://faostat3.fao.org/browse/R/RP/E Accessed July 2016. Rome, Food and Agriculture Organization of the United Nations (FAO).
[66]	Central Stastical Agency (CSA) (2012). Statistical report on area and production of crops and farm management practices, Central Statistical Agency, statistical bulletin 532, Addis Ababa.
[67]	Assefa G (2010). Pesticide use in Ethiopia, Ministry of Agriculture.www.prrp-ethiopia.org/index.../6-2012-april-workshop?...pesticide-use.
[68]	PHRD (2015). List of Registered Pesticides as of June 2015. Ministry of Agriculture Plant Health Regulatory Directorate. Ethiopia. http://www.moa.gov.et/documents/93665/4536019/List+of+Registered+Pesticides+as+of+Jun e+%2C%202015-.pdf/34309f8f-f790-4119-ac55-5d0b52a52ff2.
[69]	Pretty J, Toulmin C, Williams S (2011) Sustainable intensification in African agriculture. Int J Agric Sustain 9: 5–24.
[70]	Taddese A, Asferachew A (2008) An assessment of pesticide use: pesticides and hazards in the Ethiopian rift valley. Africa Stock Piles Programme. Institute for Sustainable Development and Pesticide Action network, UK. http://www.thenrgroup.net/theme/ PAN-ecotox/pdf/annex_6_ethiopia_mini-project_report.pdf.
[71]	Teklu BM, et al. (2014). Surface water risk assessment of pesticides in Ethiopia, Sci Total Environ (2014), http://dx.doi.org/ 10.1016/j.scitotenv.11.049.
[72]	Berhan M. T., Amare H., Daniel A. W., Bernice S. S. and Paul J. V. B. (2016). Impacts of nutrients and pesticides from small- and large scale agriculture on the water quality of Lake Ziway, Ethiopia Environ SciPollutRes. DOI 10.1007/s11356-016-6714-1.
[73]	Population Census Commission (PCC) (2008). Summary and Statistical Report of the 2007 Population and Housing Census: Population Size by Age and Sex. PCC, FDRE Addis Abeba, Ethiopia.
[74]	Danquah L. (2010). The causes and health effects of river pollution: A case study of the Aboabo River, Kumasi.
[75]	Olson E. (2004). Grading Drinking water in U.S cities what’s on Tap? National resource defense Counsel, New York City, and Washington, D.C., Los Angeles, and San Francisco.
[76]	Mekonnen M. and Amsalu Z. (2018). Causes and impacts of Shankila River water pollution in Addis Ababa, Ethiopia.
[77]	WSA (2010). Cities without Slum; Situation Analysis of Informal Settlements in Addis-Ababa, A Slum upgrading program United Nations Human Settlements Program Nairobi, Kenya.
[78]	Benti F., Yonas S., and Teshome S. (2016). Assessment of the Status of Industrial Waste Water Effluent for Selected Industries in Addis Ababa, Ethiopia. Journal of Natural Sciences Research. ISSN 2224-3186 (Paper) ISSN 2225-0921 (Online).
[79]	Impacts of climate change on fisheries and aquaculture Synthesis of current knowledge, adaptation and mitigation options.
[80]	Kaplinsky, R. and Morris, M. 2001. A Handbook for V alue Chain Research. IDRC.
[81]	FAOSTAT (2020). Capture fishery and Aquaculture production in Ethiopia.
[82]	Harvell, C. D., Mitchell, C. E., Ward, J. R., Altizer, S., Dobson, A. P., Ostfeld, R. S & Samuel, M. D. 2002. Climate warming and disease risks for terrestrial and marine biota, Science, 296, 5576, 2158-2162.
[83]	Brander K. (2009). Impacts of climate change on fisheries. Journal of Marine Systems in press, doi: 10.1016/j.jmarsys.2008.12.015.
[84]	Berhan M. T., Amare H., Daniel A. W., Bernice S. S., Paul J. V. (2016). Impacts of nutrients and pesticides from small- and large-scale Agriculture on the water quality of Lake Ziway, Ethiopia, Environ Sci Pollut Res Ecotoxicology in Tropical regions. DOI 10.1007/s11356-016-6714-1.
[85]	NAPA (2007). Climate Change, National Adaptation Programme of Action Ethiopia. Addis Ababa.

Cite This Article

Plain Text BibTeX RIS

APA Style

Hayelom Berhe Dagnaw. (2021). Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study. Frontiers in Environmental Microbiology, 7(4), 85-95. https://doi.org/10.11648/j.fem.20210704.11

Copy | Download

ACS Style

Hayelom Berhe Dagnaw. Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study. Front. Environ. Microbiol. 2021, 7(4), 85-95. doi: 10.11648/j.fem.20210704.11

Copy | Download

AMA Style

Hayelom Berhe Dagnaw. Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study. Front Environ Microbiol. 2021;7(4):85-95. doi: 10.11648/j.fem.20210704.11

Copy | Download

@article{10.11648/j.fem.20210704.11,
  author = {Hayelom Berhe Dagnaw},
  title = {Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study},
  journal = {Frontiers in Environmental Microbiology},
  volume = {7},
  number = {4},
  pages = {85-95},
  doi = {10.11648/j.fem.20210704.11},
  url = {https://doi.org/10.11648/j.fem.20210704.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.fem.20210704.11},
  abstract = {The objective of this review article was to summarize the current impacts and its implications of environmental pollution on the fisheries sector in Ethiopian fisheries. The materials for this review were kinds of literature (published and unpublished) including internet access and personal experiences were used for the source to obtain applicable data. Ethiopia has a potential source of water used for fisheries and irrigation-based agriculture. The Ethiopian Rift Valley is one of the potential sources used for fisheries purposes and it is also the most environmentally vulnerable water source in the country. Climate changes and environmental pollutions affect the fisheries and aquaculture sector directly by influencing the fish stocks and the comprehensive supply of fish for consumption. In Ethiopia, environmental pollutions are significantly affected the fisheries sector, especially in the Rift valley areas which come from different sources. 92.8% of the liquid sewages released from Addis Ababa city enter into rivers and rain-water channels having a chain with Lakes along with the downstream with above the maximum permissible levels of BOD and COD. And, applications of commercial agricultural fertilizers including pesticides and floriculture significantly affected the water qualities of Ethiopian water bodies especially the central Rift Valley lakes and, currently, the affluence and availabilities including the fish quality and the ecosystem services under the down streams are found at risk. The accumulation of nutrients affects biodiversity and fisheries. Under Rift valley lakes, 73% of the fish landing is sold nearby markets and the consumption of fish that are contaminated through different concentrations of heavy metals above permissible levels is going to be toxic for human beings. Therefore, the government and respective bodies should give more emphasis on the mitigations and management’s especially with agricultural, floriculture, and urbanization related waste entered into the water bodies; affects the ecosystem and the fishery sector in the country.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study
AU  - Hayelom Berhe Dagnaw
Y1  - 2021/11/27
PY  - 2021
N1  - https://doi.org/10.11648/j.fem.20210704.11
DO  - 10.11648/j.fem.20210704.11
T2  - Frontiers in Environmental Microbiology
JF  - Frontiers in Environmental Microbiology
JO  - Frontiers in Environmental Microbiology
SP  - 85
EP  - 95
PB  - Science Publishing Group
SN  - 2469-8067
UR  - https://doi.org/10.11648/j.fem.20210704.11
AB  - The objective of this review article was to summarize the current impacts and its implications of environmental pollution on the fisheries sector in Ethiopian fisheries. The materials for this review were kinds of literature (published and unpublished) including internet access and personal experiences were used for the source to obtain applicable data. Ethiopia has a potential source of water used for fisheries and irrigation-based agriculture. The Ethiopian Rift Valley is one of the potential sources used for fisheries purposes and it is also the most environmentally vulnerable water source in the country. Climate changes and environmental pollutions affect the fisheries and aquaculture sector directly by influencing the fish stocks and the comprehensive supply of fish for consumption. In Ethiopia, environmental pollutions are significantly affected the fisheries sector, especially in the Rift valley areas which come from different sources. 92.8% of the liquid sewages released from Addis Ababa city enter into rivers and rain-water channels having a chain with Lakes along with the downstream with above the maximum permissible levels of BOD and COD. And, applications of commercial agricultural fertilizers including pesticides and floriculture significantly affected the water qualities of Ethiopian water bodies especially the central Rift Valley lakes and, currently, the affluence and availabilities including the fish quality and the ecosystem services under the down streams are found at risk. The accumulation of nutrients affects biodiversity and fisheries. Under Rift valley lakes, 73% of the fish landing is sold nearby markets and the consumption of fish that are contaminated through different concentrations of heavy metals above permissible levels is going to be toxic for human beings. Therefore, the government and respective bodies should give more emphasis on the mitigations and management’s especially with agricultural, floriculture, and urbanization related waste entered into the water bodies; affects the ecosystem and the fishery sector in the country.
VL  - 7
IS  - 4
ER  -

Copy | Download

Author Information

Hayelom Berhe Dagnaw

Ethiopian Institute of Agricultural Research, National Fishery and Aquatic Life Research Centre, Addis Ababa, Ethiopia

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Hayelom Berhe Dagnaw. (2021). Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study. Frontiers in Environmental Microbiology, 7(4), 85-95. https://doi.org/10.11648/j.fem.20210704.11

Copy | Download

ACS Style

Hayelom Berhe Dagnaw. Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study. Front. Environ. Microbiol. 2021, 7(4), 85-95. doi: 10.11648/j.fem.20210704.11

Copy | Download

AMA Style

Hayelom Berhe Dagnaw. Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study. Front Environ Microbiol. 2021;7(4):85-95. doi: 10.11648/j.fem.20210704.11

Copy | Download

@article{10.11648/j.fem.20210704.11,
  author = {Hayelom Berhe Dagnaw},
  title = {Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study},
  journal = {Frontiers in Environmental Microbiology},
  volume = {7},
  number = {4},
  pages = {85-95},
  doi = {10.11648/j.fem.20210704.11},
  url = {https://doi.org/10.11648/j.fem.20210704.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.fem.20210704.11},
  abstract = {The objective of this review article was to summarize the current impacts and its implications of environmental pollution on the fisheries sector in Ethiopian fisheries. The materials for this review were kinds of literature (published and unpublished) including internet access and personal experiences were used for the source to obtain applicable data. Ethiopia has a potential source of water used for fisheries and irrigation-based agriculture. The Ethiopian Rift Valley is one of the potential sources used for fisheries purposes and it is also the most environmentally vulnerable water source in the country. Climate changes and environmental pollutions affect the fisheries and aquaculture sector directly by influencing the fish stocks and the comprehensive supply of fish for consumption. In Ethiopia, environmental pollutions are significantly affected the fisheries sector, especially in the Rift valley areas which come from different sources. 92.8% of the liquid sewages released from Addis Ababa city enter into rivers and rain-water channels having a chain with Lakes along with the downstream with above the maximum permissible levels of BOD and COD. And, applications of commercial agricultural fertilizers including pesticides and floriculture significantly affected the water qualities of Ethiopian water bodies especially the central Rift Valley lakes and, currently, the affluence and availabilities including the fish quality and the ecosystem services under the down streams are found at risk. The accumulation of nutrients affects biodiversity and fisheries. Under Rift valley lakes, 73% of the fish landing is sold nearby markets and the consumption of fish that are contaminated through different concentrations of heavy metals above permissible levels is going to be toxic for human beings. Therefore, the government and respective bodies should give more emphasis on the mitigations and management’s especially with agricultural, floriculture, and urbanization related waste entered into the water bodies; affects the ecosystem and the fishery sector in the country.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Implications of Environmental Pollutions and Climate Changes on Ethiopian Fisheries: Review Study
AU  - Hayelom Berhe Dagnaw
Y1  - 2021/11/27
PY  - 2021
N1  - https://doi.org/10.11648/j.fem.20210704.11
DO  - 10.11648/j.fem.20210704.11
T2  - Frontiers in Environmental Microbiology
JF  - Frontiers in Environmental Microbiology
JO  - Frontiers in Environmental Microbiology
SP  - 85
EP  - 95
PB  - Science Publishing Group
SN  - 2469-8067
UR  - https://doi.org/10.11648/j.fem.20210704.11
AB  - The objective of this review article was to summarize the current impacts and its implications of environmental pollution on the fisheries sector in Ethiopian fisheries. The materials for this review were kinds of literature (published and unpublished) including internet access and personal experiences were used for the source to obtain applicable data. Ethiopia has a potential source of water used for fisheries and irrigation-based agriculture. The Ethiopian Rift Valley is one of the potential sources used for fisheries purposes and it is also the most environmentally vulnerable water source in the country. Climate changes and environmental pollutions affect the fisheries and aquaculture sector directly by influencing the fish stocks and the comprehensive supply of fish for consumption. In Ethiopia, environmental pollutions are significantly affected the fisheries sector, especially in the Rift valley areas which come from different sources. 92.8% of the liquid sewages released from Addis Ababa city enter into rivers and rain-water channels having a chain with Lakes along with the downstream with above the maximum permissible levels of BOD and COD. And, applications of commercial agricultural fertilizers including pesticides and floriculture significantly affected the water qualities of Ethiopian water bodies especially the central Rift Valley lakes and, currently, the affluence and availabilities including the fish quality and the ecosystem services under the down streams are found at risk. The accumulation of nutrients affects biodiversity and fisheries. Under Rift valley lakes, 73% of the fish landing is sold nearby markets and the consumption of fish that are contaminated through different concentrations of heavy metals above permissible levels is going to be toxic for human beings. Therefore, the government and respective bodies should give more emphasis on the mitigations and management’s especially with agricultural, floriculture, and urbanization related waste entered into the water bodies; affects the ecosystem and the fishery sector in the country.
VL  - 7
IS  - 4
ER  -

Copy | Download