Factors controlling phytoplankton population in a bog, Matsumi-ike, Japan

Biomass development and vertical distribution of a Chlamydomonas population in a small humic forest lake was followed by daily sampling in May-June, 1984. Chlamydomonas dominated the phytoplankton spring bloom, forming 71% of the maximum phytoplankton biomass on 18 May. In early May the outflow rate was high and during the 24 hour period when the maximum rate of surface runoff was recorded (8 -9 May), 43%0 of the Chlamydomonas biomass was flushed out of the lake, which delayed the onset of biomass increase. When surface runoff had slowed down Chlamydomonas biomass started increasing and during wax of the population most cells were < 10 pm in diameter. Population maximum lasted for one day (18 May) and thereafter Chlamydomonas biomass decreased towards the end of the study. During wane of the population most cells were > 10 /Am in diameter. 157

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Trophodynamic structure of a swampy bog at the clymax stage of limnological succssion I. Prmary production dynamics

Ytow

Seki

Mizusaki

et al. 1994

Water Air Soil Pollut

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Factors controlling phytoplankton population in a bog, Matsumi-ike, Japan

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Spring development of a Chlamydomonas population in Lake Nimetön, a small humic forest lake in southern Finland

Spring development of a Chlamydomonas population in Lake Nimetön, a small humic forest lake in southern Finland

Spring development of a Chlamydomonas population in Lake Nimet�n, a small humic forest lake in southern Finland

Trophodynamic structure of a swampy bog at the clymax stage of limnological succssion I. Prmary production dynamics

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