A survey is given on structural effects in the nuclide production from fission and fragmentation reactions, including recent results from GSI. The prominent structural features found in low-energy fission are related to pairing correlations and shell effects as described by standard models. A complex fine structure observed in the end products after the deexcitation of highly excited nuclei is deduced from the production yields of the system U-238+Ti at I A GeV. Possible reasons for this structure are discussed, which go beyond the features found in low-energy fission.