- Data from: Effects of perceived predation risk and social environment on the development of three-spined stickleback (Gasterosteus aculeatus) morphology(2015-12-07) Ab Ghani, Nurul I.; Herczeg, Gábor; Merilä, Juha; University of Helsinki - Ab Ghani, Nurul I.; University of Helsinki - Herczeg, Gábor; University of Helsinki - Merilä, Juha