ACKNOWLEDGEMENTS
The data presented in this
manuscript
was collected by research scientists from the Tanzania Fisheries
Research Institute (TAFIRI), Kyela Centre, together with the large
number of students from the University of Dar es Salaam (UDSM) and
Sokoine University of Agriculture (SUA). We would like to thank all of
them for sharing their data with us. We also thank Dr. Madeleine
Carruthers for smoothing the English writing.