Age and patterns of growth and formation of assimilating surface in the White Sea Laminaria saccharina (L.) Lamourстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:Observations from 1987-1993 have shown that the population of White Sea Laminaria saccharina consists of three size-age groups and the maximum age of its representatives does not exceed five years. The temporal dynamics of their population growth has been described with a quasiperiodic function. The periods of growth are timed to summer and the periods of dying, to winter. The growth function in each age group was approximated quite well by an S-shaped growth curve and the variability of allometric parameters of the thalli increased with the age. The dynamics of formation of the lamina planar size was studied on the example of annual (fast growing and low variable) thalli. When comparing the absolute parameters and the rates of their change, differences were established between the longitudinal and cross lamina growth. Analysis of the function of growth rate in different parts of the lamina allowed discussion of the anatomical and functional features of age-related rearrangements of different parts of the lamina.