Fottea 2016, 16(1):122-132 | DOI: 10.5507/fot.2015.025

Intensive study of freshwater red algae (Rhodophyta) in Finland

Pertti Eloranta1, Anssi Eloranta2, Pasi Perämäki2
1 Sinkilätie 13, FI 40530 Jyväskylä, Finland; Corresponding author e-mail: pertti.eloranta@elisanet.fi
2 Centre for Economic Development, Transport and the Environment of Central Finland, PL 250, Jyväskylä, Finland

Abstract: Freshwater red algae (Rhodophyta) were studied in Central Finland by examining 2224 rivers and brooks during the open water periods of the years 2012-2015 with supplementary sampling in S- and SW-Finland, the W-coast rivers and Lapland. A total of 1957 records of algae were made. Approximately 56.2% of the studied locations had 1-6 taxa. The total taxa collected were 25, with 5 taxa new to Finland. While sampling, ecological variables were recorded and measured. The most common taxa were Batrachospermum gelatinosum (37.0%), Sheathia arcuata (10.7%), Audouinella hermannii (11.2%) and Sirodotia suecica (7.0%). Lemanea spp. (9.9%) occurred in larger rivers. Most records were from July and August, but some also in winter months. From the most rare taxa, Lemanea condensata was found in Lapland rivers, Batrachospermum vogesiacum in acid, dystrophic rivers in Central Finland, B. atrum in 7 eutrophic rivers, Kumanoa globospora in 6 rivers of Central Finland, Batrachospermum elegans in 6 and K. virgatodecaisneana in 5 harder-water rivers of SW-Finland.

Keywords: Batrachospermum, ecology, Finland, freshwaters, Kumanoa, Rhodophyta, stream

Received: September 16, 2015; Accepted: October 20, 2015; Prepublished online: March 21, 2016; Published: March 30, 2016  Show citation

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Eloranta, P., Eloranta, A., & Perämäki, P. (2016). Intensive study of freshwater red algae (Rhodophyta) in Finland. Fottea, 16(1), 122-132. doi: 10.5507/fot.2015.025
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