Funding for this research was provided by:
Japan Society for the Promotion of Science (25304017, 23570033 and 4501)
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (31003A_166470)
Article History
Received: 4 September 2017
Revised: 21 January 2018
Accepted: 24 January 2018
First Online: 6 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interests.
: The study was carried out in the field in agreement with and approved by the Zambian Department of Fisheries: Ministry of Agriculture and Cooperatives. Data collection were in accordance with the current laws of the Republic of Zambia and followed the ASAB/ABS (CitationRef removed) guidelines for the treatment of animals in behavioural research and teaching.