Currently, I'm developing questionnaires for my topic "Willingness to pay for wild betta conservation", and one the component/section will be asking the public about the trade market for the wild betta. Hypothesizing that this would be a variable that will influence the WTP value for the fish conservation.
Though, the scope research I find, very limited. Any helps would be highly appreciated.
I'm looking for wider topic, possibly any wild ornamental fauna (preferably) or flora that i could adapted in developing the questionnaire.
Thank you.