Data from: Population divergence in compensatory growth responses and their costs in sticklebacks

• Main Authors: Ab Ghani, Nurul Izza, Merilä, Juha
• Format: Dataset
• Language: English
• Published: Dryad 2015
• Subjects: standard length; common garden experiment; population differentiation; compensatory growth; Fish; Body Size; Growth; Pungitius pungitius; stickleback; Fennoscandia; Finland; Europe; Baltic Sea; Kuusamo; Life sciences; medicine and health care; envir; demo
• Online Access: https://doi.org/10.5061/dryad.40r32

Compensatory growth (CG) may be an adaptive mechanism that helps to restore an organisms’ growth trajectory and adult size from deviations caused by early life resource limitation. Yet, few studies have investigated the genetic basis of CG potential and existence of genetically based population differentiation in CG potential. We studied population differentiation, genetic basis, and costs of CG potential in nine-spined sticklebacks (Pungitius pungitius) differing in their normal growth patterns. As selection favors large body size in pond and small body size in marine populations, we expected CG to occur in the pond but not in the marine population. By manipulating feeding conditions (viz. high, low and recovery feeding treatments), we found clear evidence for CG in the pond but not in the marine population, as well as evidence for catch-up growth (i.e., size compensation without growth acceleration) in both populations. In the marine population, overcompensation occurred individuals from the recovery treatment grew eventually larger than those from the high feeding treatment. In both populations, the recovery feeding treatment reduced maturation probability. The recovery feeding treatment also reduced survival probability in the marine but not in the pond population. Analysis of interpopulation hybrids further suggested that both genetic and maternal effects contributed to the population differences in CG. Hence, apart from demonstrating intrinsic costs for recovery growth, both genetic and maternal effects were identified to be important modulators of CG responses. The results provide an evidence for adaptive differentiation in recovery growth potential. Primary data on growth, maturation and survivalThe data includes the cross-type, family and individual identifiers for all the 400 individual fish used in the experiment, as well as their size (standard length, in mm) at 15 different time points until day 510 after hatching when the experiments were terminated. Included is also information on day of ...