Peculiarities of biology of <i>Porphyra miniata</i> (Bangiales, Rhodophyta) in Avacha Gulf in different conditions of man-made pollution
The peculiarities of biology of Porphyra miniata (C. Agardh) C. Agardh in Avacha Gulf are described in the article. Period of life of gametophyte generation of this species in Kamchatka region is 2-2,5 months, frommid May to early August as shown. Its reproduction lasts for a long time and occurs asynchronously. In Avacha Bay coastal areas that are exposed to man-made pollution gametophytes development of P. miniata occurs later than in clean waters. Extensive growth of diatoms on the blades surface in Zavoiko Bay hasdepressing effect on their vegetation. Diseases that affect P. miniata in man-made pollution areas of Avacha Bay cause pathological changes in its cells.