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Comparison of growth and condition of European eels stocked as glass and farm sourced eels in lakes in the first 4 years after stocking


Author's address: Janek Simon, Institute of Inland Fisheries e.V. Potsdam-Sacrow, Im Königswald 2, D-14469 Potsdam, Germany.



European glass eels Anguilla anguilla showed a better overall performance of growth and condition compared to farm sourced eels after stocking in six isolated lakes within a 4-year study period. It can be concluded that the stocked farm sourced eels needed a longer period to switch from artificial food to natural prey and to adapt to new foraging strategies.