Theory question 107
Fisheries and Aquaculture(a) Mention four factors that should be considered when siting a fish pond
(b) Explain six ways of maintaining a fish pond.
Show the model answer
Model answer
(a) Any four: reliable water supply; soil that holds water (clay/clay loam); gentle slope for filling and draining; water quality free from pollution; accessibility/market; security; flood-free site; availability of fingerlings
(b) Any six: control water level and inflow/outflow; remove weeds (deweeding); desilt the pond; repair dykes, screens and monks; lime to correct acidity; fertilise to encourage plankton; supplementary feeding; control predators; control diseases; regular harvesting/correct stocking
Explanation
Explain what each maintenance practice does.