Davidovich O.I., Davidovich N.A., Gololobova M.A., Nikulin V.YU., Nikulin A.YU., Gogorev R.M.
Issues of modern algology 2025; 37(1): 29-31
Heterothallic isogamous sexual reproduction in the diatom Nitzschia sp. from a brackish cenote Cueva de los Peces (Cuba) was obtained in laboratory conditions. Ecophysiological characteristics (the effect of salinity and illumination) of Nitzschia sp. were studied. The research showed that this species is broadly tolerant to variations in light and salinity. The cell division rate remained at approximately one division per day within a salinity range of 0–60‰ and decreased to 0.2–0.4 divisions per day at 100‰ salinity. Sexual reproduction occurred within a narrower salinity range of 20–40‰.
