Phytoepiphyton of Ceratophyllum demersum L. and Its Pigment Characteristics in the Water Bodies of the "Golosiyivsky" National Nature Park (Ukraine)

The content of photosynthetic pigments (chlorophyll <i>a, b, c </i>and carotenoids) and the spectral pigment indices of algae were studied in phytoepiphyton of <i>Ceratophyllum demersum</i> L. in the water bodies of the "Golosiyivsky" National Nature Park in 2022 and 2023. It has been found that in different years epiphyton of <i>C. demersum</i> differed in the content of photosynthetic pigments. It was established that in June, July, and October the highest average concentrations of chlorophyll <i>a</i> and chlorophyll c in epiphyton of <i>C. demersum</i> were registered in 2022, while the average content of chlorophyll <i>b</i> in the fouling of this plant was higher in 2023. It was shown that seasonal changes in the content of chlorophylls and carotenoids in general were characterized by their higher values in summertime and by a noticeable decrease in autumn. The content of chlorophyll <i>a</i> and carotenoids in the fouling of <i>C. demersum</i> correlates with the biomass of phytoepiphyton and is related to its structure.