Impact of Average Atmospheric Temperature on Rainbow Trout Production in South Africa: A Time Series Analysis Approach

Authors

  • Jenny Potsiso Mokhaukhau

    Department of Agricultural Economics and Animal Production, University of Limpopo, Polokwane 0727, South Africa
  • Mmapatla Precious Senyolo

    Department of Agricultural Economics and Animal Production, University of Limpopo, Polokwane 0727, South Africa

DOI:

https://doi.org/10.30564/jees.v6i3.7023
Received: 9 August 2024 | Revised: 26 August 2024 | Accepted: 3 September 2024 | Published Online: 10 October 2024

Abstract

Climate change has various effects on the global food supply and the  environment as a whole. Similarly, the production of fish like Rainbow Trout is affected by variation in the atmospheric temperature higher than 21oC, leading to fluctuations in yield. Therefore, this study sought to investigate the impact of average atmospheric temperature on Rainbow Trout production in South Africa using time series data spanning from 2000 to 2022. The unit root test, Johannsen cointegration test, and the Vector Error Correction model were employed to analyse the data. The results show that the change in average atmospheric temperature affects the production of Rainbow Trout. The correlation between average temperature and Rainbow Trout production is positive in the short-run and long-run. I Prolonged exposure to high temperature may lead to fish stress, migration and increased susceptibility to diseases which ultimately affects the economic viability of the sector in both the short-run and the long-run. In addition, the overall change in the atmospheric temperature has a negative effect on the production of the fish highlighting the need for climate change intervention to sustain fish production. The study recommends implementing strategies that reduce the impact of temperature changes on fish production to support both economic growth and food security.

Keywords:

Rainbow Trout production; Average temperature; Unit root test; Vector Error Correction model

References

[1] Yazew, T., Kumsa, D., Daba, A., 2020. Health Benefits of Fish Consumption and Its Contribution to Poverty Alleviation and Food Security in Ethiopia: A Review. International Journal of Nutrition and Food Sciences. 9(4), 118–124. DOI: https://doi.org/10.11648/j.ijnfs.20200904.14

[2] Kao, Y.-C., Rogers, M.W., Bunnell, D.B., et al., 2020. Effects of climate and land-use changes on fish catches across lakes at a global scale. Nature Communications. 11(1), 2526. DOI: https://doi.org/10.1038/s41467-020-14624-2

[3] Hosseinpour, F., Vazirzadeh, A., Farhadi, A., et al., 2024. Acclimation to higher temperature and antioxidant supplemented diets improved rainbow trout (Oncorhynchus mykiss) resilience to heatwaves. Scientific Reports. 14(1), 11375. DOI: https://doi.org/10.1038/s41598-024-62130-y

[4] Maimela, L.T., Chimimba, C.T., Zengeya, T.A., 2021. The effect of rainbow trout (Oncorhynchus mykiss) invasions on native fish communities in the subtropical Blyde River, Mpumalanga province, South Africa. African Journal of Aquatic Science. 47(1), 78–87. DOI: https://doi.org/10.2989/16085914.2021.1949260

[5] Hasegawa, K., 2020. Invasions of rainbow trout and brown trout in Japan: A comparison of invasiveness and impact on native species. Ecology of Freshwater Fish. 29(3), 419–428. DOI: https://doi.org/10.1111/eff.12534

[6] Rogerson, C.M., Rogerson, J.M., 2024. A historical perspective on niche tourism: recreational trout fishing in South Africa. Bulletin of Geography. Socio-Economic Series. 63, 121–135. DOI: https://doi.org/10.12775/bgss-2024-0009

[7] Potts, W.M., Saayman, M., Saayman, A., et al., 2021. Understanding the economic activity generated by recreational fishing in South Africa provides insights on the role of recreational fisheries for social development. Fisheries Management and Ecology. 29(1), 29–43. DOI: https://doi.org/10.1111/fme.12515

[8] DeSombre, E.R., 2019. The security implications of fisheries. International Affairs. 95(5), 1019–1035.

[9] Mbotiji, N.N., 2019. An impact assessment of Illegal Unreported Unregulated IUU fishing In Central Africa as a step towards sustainability in Africa's fishing industry: case study: Cameroon.

[10] Johnson, J.E., Allain, V., Basel, B., et al., 2020. Impacts of climate change on marine resources in the Pacific Island region. Climate change and impacts in the Pacific. 359–402. DOI: https://doi.org/10.1007/978-3-030-32878-8_10

[11] Cheung, W.W.L., Frölicher, T.L., Lam, V.W.Y., et al., 2021. Marine high temperature extremes amplify the impacts of climate change on fish and fisheries. Science Advances. 7(40), eabh0895. DOI: https://doi.org/10.1126/sciadv.abh0895

[12] Mendenhall, E., Hendrix, C., Nyman, E., et al., 2020. Climate change increases the risk of fisheries conflict. Marine Policy. 117, 103954. DOI: https://doi.org/10.1016/j.marpol.2020.103954

[13] Huang, M., Ding, L., Wang, J., et al., 2021. The impacts of climate change on fish growth: A summary of conducted studies and current knowledge. Ecological Indicators. 121, 106976. DOI: https://doi.org/10.1016/j.ecolind.2020.106976

[14] Hara, M., Muchapondwa, E., Sara, J.R., et al., 2021. Inland fisheries contributions to rural livelihoods: an assessment of fisheries potential, market value chains and governance arrangements. Water Research Commission: Pretoria, South Africa.

[15] Scharsack, J.P., Franke, F., 2022. Temperature effects on teleost immunity in the light of climate change. Journal of Fish Biology. 101(4), 780–796. DOI: https://doi.org/10.1111/jfb.15163

[16] Shelton, J.M., Weyl, O.L.F., Esler, K.J., et al., 2018. Temperature mediates the impact of non-native rainbow trout on native freshwater fishes in South Africa’s Cape Fold Ecoregion. Biological Invasions. 20(10), 2927–2944. DOI: https://doi.org/10.1007/s10530-018-1747-7

[17] Guo, Z., 2023. Research on the Augmented Dickey-Fuller Test for Predicting Stock Prices and Returns. Advances in Economics, Management and Political Sciences. 44(1), 101–106. DOI: https://doi.org/10.54254/2754-1169/44/20232198

[18] Smeekes, S., Wijler, E., 2020. Unit roots and cointegration. Macroeconomic forecasting in the era of big data: Theory and practice. 541–584. DOI: https://doi.org/10.1007/978-3-030-31150-6_17

[19] Borgwardt, F., Unfer, G., Auer, S., et al., 2020. Direct and Indirect Climate Change Impacts on Brown Trout in Central Europe: How Thermal Regimes Reinforce Physiological Stress and Support the Emergence of Diseases. Frontiers in Environmental Science. 8, 59. DOI: https://doi.org/10.3389/fenvs.2020.00059

[20] Andrew, R.G., Schwinghamer, C.W., Hartman, K.J., et al., 2022. Climate change influence on brook trout populations in the Central Appalachians. Ecology of Freshwater Fish. 31(4), 710–725. DOI: https://doi.org/10.1111/eff.12664

[21] Jiang, X., Dong, S., Liu, R., et al., 2021. Effects of temperature, dissolved oxygen, and their interaction on the growth performance and condition of rainbow trout (Oncorhynchus mykiss). Journal of Thermal Biology. 98, 102928. DOI: https://doi.org/10.1016/j.jtherbio.2021.102928

Downloads

How to Cite

Mokhaukhau, J. P., & Senyolo, M. P. (2024). Impact of Average Atmospheric Temperature on Rainbow Trout Production in South Africa: A Time Series Analysis Approach. Journal of Environmental & Earth Sciences, 6(3), 233–240. https://doi.org/10.30564/jees.v6i3.7023

Issue

Vol. 6 , Iss. 3 (October 2024): In progress

Article Type

Article

License

Copyright © 2024 Jenny Potsiso Mokhaukhau, Mmapatla Precious Senyolo

Creative Commons License

This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

Crossref
Scopus
Google Scholar
Europe PMC