Acta Ichthyologica et Piscatoria 18(2): 81-89, doi: 10.3750/AIP1988.18.2.07
Differentiation of body size in two coregonid species under conditions of long-term culture in illuminated cages
expand article infoA. Mamcarz
Open Access
Changes in population structure of two coregonid species (Coregonus lavaretus L. and C. peled Gmel.) kept in illuminated cages from hatching until maturity are a result of concerted action of a number of ecological factors, food resources playing the key role. The analysis of long-term trends in body size variability and in changes within each stock allows to reconstruct the conditions of growth in cages and to indicate certain critical periods in fish life.