Category Archive output

Sea to Source 2.0 : connecting fish, rivers and people !

The new Sea to Source 2.0 book is out and our team has been involved in it ! Matthew and Gordon talk about yellowfish and free flowing rivers in South Africa.

The electronic version of the book can be downloaded for free as a low resolution PDF file.

Key ouput 2017 : Tag retention in the African tigerfish !

This paper was published as part of Francois Jacobs PhD thesis. Francois is a former AER student who graduated in 2018.

Jacobs, F. J., Weyl, O. L. F., Libala, N. S., O’Brien, G. C., & Downs, C. T. (2017). Retention of plastic-tipped dart tags in African tigerfish Hydrocynus vittatus. African Journal of Aquatic Science, 42(3), 299-301.

Accessible here. 

Key output for 2018 : the movement of the Orange-Vaal largemouth Yellowfish in response to water quality and habitat features.

A paper focusing on fish movement !

Ramesh, T., Downs, C. T., & O’Brien, G. C. (2018). Movement response of Orange-Vaal largemouth yellowfish (Labeobarbus kimberleyensis) to water quality and habitat features in the Vaal River, South Africa. Environmental Biology of Fishes, 101(6), 997-1009.

Accessible here. 

Key output for 2017 : IUCN Red List status of local fish species

Gordon and Wesley have been reviewing some local fish species : Enteromius gurneyi, Labeobarbus polylepis, Silhouettea sibayi. At the time of the review, we also wrote an article about the process of the review for our South African fish species, here

Kubheka S, O’Brien GC, Evans, WD. 2017. Enteromius gurneyi. (amended version published in 2017) The IUCN Red List of Threatened Species 2017: e.T63262A111041325. http://dx.doi.org/10.2305/IUCN.UK.2017- 1.RLTS.T63262A111041325.en. Downloaded on 21 September 2017.

O’Brien GC, Cambray J, Engelbrecht J and Bills, R. 2017. Labeobarbus polylepis (amended version published in 2017) The IUCN Red List of Threatened Species 2017: e.T63262A111041325. http://dx.doi.org/10.2305/IUCN.UK.2017- 1.RLTS.T63262A111041325.en. Downloaded on 21 September 2017.

Kubheka S, Craigie J, O’Brien GC. and Evans WD. 2017. Silhouettea sibayi (amended version published in 2017) The IUCN Red List of Threatened Species 2017: e.T63262A111041325. http://dx.doi.org/10.2305/IUCN.UK.2017- 1.RLTS.T63262A111041325.en. Downloaded on 21 September 2017.

Key output 2017 : The future of fish passage !

A key peer-reviewed publication for 2017 !

Silva AT, Lucas MC, Castro-Santos T, Katopodis C, Baumgartner LJ, Thiem JD, Aarestrup K, Pompeu PS, O’Brien GC, Braun D, Burnett NJ, Zhu DZ, Fjeldstad HP, Forseth T, Rajaratnam N, Williams JG and Cooke SJ. 2017. The Future of Fish Passage Science, Engineering, and Practice. Fish and Fisheries. DOI: 10.1111/faf.12258

Accessible here. 

Key out put 2018 : A regional-scale ecological risk framework for environmental flow evaluations

A key output for 2018 !

O’Brien, G. C., Dickens, C., Hines, E., Wepener, V., Stassen, R., Quayle, L., … & Landis, W. G. (2018). A regional-scale ecological risk framework for environmental flow evaluations. Hydrology and Earth System Sciences, 22(2), 957-975.

Accessible here  !

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Key output 2017 : River Health Programme – State of the rivers of KwaZulu-Natal

In 2017 the AER completed an evaluation of the ecological wellbeing of the 16 major rivers in KwaZulu-Natal. This includes results from eight seasonal bio-physical assessments undertaken by the AER between 2014 and 2016. The outcomes provide stakeholders of the managers of rivers in KwaZulu-Natal with critical information they require to protect our riverine ecosystems.

Key output 2017 : Regional scale ecological risk assessment

In 2017 the AER released a final draft report of the Holistic Risk and Environmental Water Requirement Assessment of the Lower Thukela River and eMandeni Stream. This study involved updating the Ecological Reserve for the Lower Thukela River, and the established flow-ecosystem and water quality-ecosystem relationships used in an internationally recognised regional scale ecological risk assessment framework established by the AER. The study will to contribute to the establishment of a sustainable balance between the use and protection of water resources in the lower Thukela River and Estuary.

Key ouputs 2007 : Strategy for management of environmental flows in the Nile Basin

In 2017 the strategy for the management of Environmental Flows for the Nile Basin was published by the Nile Basin Initiative (NBI). The strategy was endorsed by the technical advisory committee of the NBI which includes national representatives of the Nile Basin riparian countries. The strategy emanated from the NBI Guidance Document on Environmental Flows: Nile E-flows Framework – Technical Implementation Manual. The primary author of this guidance document is an AER scientist.

Check it here.

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