David, N. Ben; Benzion, U.; Ofir, E.; Spanier, E. - In: Applied Economics 44 (2012) 9, pp. 1159-1168
We developed a model for estimating the fish population for various species in lakes and rivers. Our estimation focuses, in its first step, on fish species that breed outside the lake. Using the annual outside supply of fingerlings, natural survival rate and reported amounts of fish caught, we...