IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v18y2021i9p4928-d549267.html
   My bibliography  Save this article

Harmful Algal Blooms in Aquaculture Systems in Ngerengere Catchment, Morogoro, Tanzania: Stakeholder’s Experiences and Perception

Author

Listed:
  • Offoro Neema Kimambo

    (Department of Geography & Environmental Studies, Solomon Mahlangu College of Science & Education, Sokoine University of Agriculture, Morogoro 67115, Tanzania
    Department of Ecology & Resource Management, School of Environmental Sciences, University of Venda, Thohoyandou 0950, South Africa)

  • Jabulani Ray Gumbo

    (Department of Hydrology and Water Resources, School of Environmental Sciences, University of Venda, Thohoyandou 0950, South Africa)

  • Hector Chikoore

    (Unit for Environmental Science and Management, North-West University, Vanserdbijlpark 1900, South Africa)

  • Titus Alfred Makudali Msagati

    (College of Science, Engineering & Technology, University of South Africa, Johannesburg 1709, South Africa)

Abstract

The aquaculture sector has experienced fast growth as a result of livelihood diversification initiatives among small-scale farmers in Tanzania. Regrettably, the dynamics of harmful algal blooms (HABs) have been overlooked despite the noticeable forcing of climate variability, the interaction between social-economic activities, and domestic water supply reservoirs. This study aimed at surveying the occurrence, experiences, and perceptions of HABs in aquaculture systems from stakeholders in the Ngerengere catchment, Morogoro, Tanzania. A cross-sectional survey focus group discussion (FDG), key informant interviews, and anecdotal observation were adopted. A convenient and purposive sample population was drawn from pond owners, registered water users, and government officials in the catchment. For data analysis, descriptive statistics and constant comparison were performed. Most respondents (95%) were able to recognize the image of blooms displayed. Approximately 70% of the respondents agreed that water quality has deteriorated over time, and blooms occur during the dry season. Further, 60% of the respondents agreed that water pollution is a serious problem attributed to sources other than industrial discharge. There was no consensus regarding the health impacts associated with HABs. Raising awareness on HABs is of paramount importance as it will provide the basis for the development of HABs management framework and health risk assessment.

Suggested Citation

  • Offoro Neema Kimambo & Jabulani Ray Gumbo & Hector Chikoore & Titus Alfred Makudali Msagati, 2021. "Harmful Algal Blooms in Aquaculture Systems in Ngerengere Catchment, Morogoro, Tanzania: Stakeholder’s Experiences and Perception," IJERPH, MDPI, vol. 18(9), pages 1-17, May.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:9:p:4928-:d:549267
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/18/9/4928/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/18/9/4928/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Sisira S. Withanachchi & Ilia Kunchulia & Giorgi Ghambashidze & Rami Al Sidawi & Teo Urushadze & Angelika Ploeger, 2018. "Farmers’ Perception of Water Quality and Risks in the Mashavera River Basin, Georgia: Analyzing the Vulnerability of the Social-Ecological System through Community Perceptions," Sustainability, MDPI, vol. 10(9), pages 1-26, August.
    2. Sellke T. & Bayarri M. J. & Berger J. O., 2001. "Calibration of rho Values for Testing Precise Null Hypotheses," The American Statistician, American Statistical Association, vol. 55, pages 62-71, February.
    3. Winfrida Mayilla & Bernard Keraita & Helena Ngowi & Flemming Konradsen & Flavianus Magayane, 2017. "Perceptions of using low-quality irrigation water in vegetable production in Morogoro, Tanzania," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 19(1), pages 165-183, February.
    4. Quintana, Daniel S & Williams, Donald Ray, 2018. "Bayesian alternatives for common null-hypothesis significance tests in psychiatry: A non-technical guide using JASP," OSF Preprints wun5v, Center for Open Science.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Okumah, Murat & Yeboah, Ata Senior & Bonyah, Sylvester Kwaku, 2020. "What matters most? Stakeholders’ perceptions of river water quality," Land Use Policy, Elsevier, vol. 99(C).
    2. Sisira S. Withanachchi & Ilia Kunchulia & Giorgi Ghambashidze & Rami Al Sidawi & Teo Urushadze & Angelika Ploeger, 2018. "Farmers’ Perception of Water Quality and Risks in the Mashavera River Basin, Georgia: Analyzing the Vulnerability of the Social-Ecological System through Community Perceptions," Sustainability, MDPI, vol. 10(9), pages 1-26, August.
    3. Jyotirmoy Sarkar, 2018. "Will P†Value Triumph over Abuses and Attacks?," Biostatistics and Biometrics Open Access Journal, Juniper Publishers Inc., vol. 7(4), pages 66-71, July.
    4. Nuria Senent-Capuz & Inmaculada Baixauli-Fortea & Carmen Moret-Tatay, 2021. "Parent-Implemented Hanen Program It Takes Two to Talk ® : An Exploratory Study in Spain," IJERPH, MDPI, vol. 18(15), pages 1-17, August.
    5. Bachmann, Dirk & Dette, Holger, 2004. "A note on the Bickel-Rosenblatt test in autoregressive time series," Technical Reports 2004,17, Technische Universität Dortmund, Sonderforschungsbereich 475: Komplexitätsreduktion in multivariaten Datenstrukturen.
    6. Joycelyn K. Quansah & Cesar L. Escalante & Angela P.-H. Kunadu & Firibu K. Saalia & Jinru Chen, 2020. "Pre- and Post-Harvest Practices of Urban Leafy Green Vegetable Farmers in Accra, Ghana and Their Association with Microbial Quality of Vegetables Produced," Agriculture, MDPI, vol. 10(1), pages 1-14, January.
    7. Diego A Forero & Sandra Lopez-Leon & Yeimy González-Giraldo & Pantelis G Bagos, 2019. "Ten simple rules for carrying out and writing meta-analyses," PLOS Computational Biology, Public Library of Science, vol. 15(5), pages 1-7, May.
    8. Desta Woldetsadik & Pay Drechsel & Bernard Keraita & Fisseha Itanna & Heluf Gebrekidan, 2018. "Farmers’ perceptions on irrigation water contamination, health risks and risk management measures in prominent wastewater-irrigated vegetable farming sites of Addis Ababa, Ethiopia," Environment Systems and Decisions, Springer, vol. 38(1), pages 52-64, March.
    9. Ferguson John P. & Palejev Dean, 2014. "P-value calibration for multiple testing problems in genomics," Statistical Applications in Genetics and Molecular Biology, De Gruyter, vol. 13(6), pages 659-673, December.
    10. Guido Consonni & Roberta Paroli, 2017. "Objective Bayesian Comparison of Constrained Analysis of Variance Models," Psychometrika, Springer;The Psychometric Society, vol. 82(3), pages 589-609, September.
    11. Charlotte Murphy & Giulia Poerio & Mladen Sormaz & Hao-Ting Wang & Deniz Vatansever & Micah Allen & Daniel S Margulies & Elizabeth Jefferies & Jonathan Smallwood, 2019. "Hello, is that me you are looking for? A re-examination of the role of the DMN in social and self relevant aspects of off-task thought," PLOS ONE, Public Library of Science, vol. 14(11), pages 1-19, November.
    12. Alessio Farcomeni, 2003. "Unified conditional frequentist and Bayesian testing: computations in practice and sample size determination," Metron - International Journal of Statistics, Dipartimento di Statistica, Probabilità e Statistiche Applicate - University of Rome, vol. 0(2), pages 243-266.
    13. Ricart, Sandra & Rico, Antonio M., 2019. "Assessing technical and social driving factors of water reuse in agriculture: A review on risks, regulation and the yuck factor," Agricultural Water Management, Elsevier, vol. 217(C), pages 426-439.
    14. Snyder, Christopher & Zhuo, Ran, 2018. "Sniff Tests in Economics: Aggregate Distribution of Their Probability Values and Implications for Publication Bias," MetaArXiv 8vdrh, Center for Open Science.
    15. Daniel J. Benjamin & James O. Berger & Magnus Johannesson & Brian A. Nosek & E.-J. Wagenmakers & Richard Berk & Kenneth A. Bollen & Björn Brembs & Lawrence Brown & Colin Camerer & David Cesarini & Chr, 2018. "Redefine statistical significance," Nature Human Behaviour, Nature, vol. 2(1), pages 6-10, January.
      • Daniel Benjamin & James Berger & Magnus Johannesson & Brian Nosek & E. Wagenmakers & Richard Berk & Kenneth Bollen & Bjorn Brembs & Lawrence Brown & Colin Camerer & David Cesarini & Christopher Chambe, 2017. "Redefine Statistical Significance," Artefactual Field Experiments 00612, The Field Experiments Website.
    16. Hirschauer Norbert & Mußhoff Oliver & Grüner Sven & Frey Ulrich & Theesfeld Insa & Wagner Peter, 2016. "Die Interpretation des p-Wertes – Grundsätzliche Missverständnisse," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 236(5), pages 557-575, October.
    17. Marika Avkopashvili & Guranda Avkopashvili & Irakli Avkopashvili & Lasha Asanidze & Lia Matchavariani & Alexander Gongadze & Ramaz Gakhokidze, 2022. "Mining-Related Metal Pollution and Ecological Risk Factors in South-Eastern Georgia," Sustainability, MDPI, vol. 14(9), pages 1-15, May.
    18. José A. Aznar-Sánchez & Luis J. Belmonte-Ureña & Juan F. Velasco-Muñoz & Diego L. Valera, 2019. "Aquifer Sustainability and the Use of Desalinated Seawater for Greenhouse Irrigation in the Campo de Níjar, Southeast Spain," IJERPH, MDPI, vol. 16(5), pages 1-16, March.
    19. Qi Zhou & Jing Zhang & Yong Niu & Jianjian Wang, 2021. "Environmental Risk Assessment and Regulatory Rating of Water Sources along the Yangtze River’s Nanjing Section under the Influence of Multiple Risk Sources," Sustainability, MDPI, vol. 13(3), pages 1-24, February.
    20. Gary Koop & Roberto Leon-Gonzalez & Rodney Strachan, 2008. "Bayesian inference in a cointegrating panel data model," Advances in Econometrics, in: Bayesian Econometrics, pages 433-469, Emerald Group Publishing Limited.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:18:y:2021:i:9:p:4928-:d:549267. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.