About the Authors

Matthew S. Bird

matthew.bird@nmmu.ac.za

Affiliation DST/NRF Research Chair in Shallow Water Ecosystems, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa

Jenny A. Day

Affiliation Freshwater Research, Department of Biological Sciences, University of Cape Town, Private Bag, Rondebosch, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MSB JAD. Performed the experiments: MSB. Analyzed the data: MSB JAD. Contributed reagents/materials/analysis tools: MSB JAD. Wrote the paper: MSB JAD.