Microzooplankton, the missing link in Finnish plankton monitoring programs

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http://hdl.handle.net/10138/298738

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Lipsewers , T & Spilling , K 2018 , ' Microzooplankton, the missing link in Finnish plankton monitoring programs ' , Boreal Environment Research , vol. 23 , pp. 127-137 . < http://www.borenv.net/BER/ber231-6.htm >

Title: Microzooplankton, the missing link in Finnish plankton monitoring programs
Author: Lipsewers, Tobias; Spilling, Kristian
Contributor: University of Helsinki, Faculty of Biological and Environmental Sciences
University of Helsinki, Tvärminne Zoological Station
Date: 2018
Language: eng
Number of pages: 11
Belongs to series: Boreal Environment Research
ISSN: 1239-6095
URI: http://hdl.handle.net/10138/298738
Abstract: Finnish plankton monitoring is divided into phytoplankton and mesozooplankton sampling. Using the phytoplankton protocol, we included all organisms identified in samples from the Baltic Sea during spring (n = 125). The plankton was converted to carbon, and including all microscopy derived carbon (MDC), increased the carbon content by 22%, on average, compared with only phytoplankton. Particulate organic carbon (POC) and chlorophyll a (Chl a) were also measured, and the general relationship between MDC and POC was: slope = 1.04, intercept = 240 mu g POC l(-1), R-2 = 0.66; for phytoplankton to Chl a: 0.037 g Chl a (g MDC)(-1), R-2 = 0.68. Our results demonstrate that a variable fraction of the plankton biomass is not recorded in the monitoring programs. Most of the unaccounted biomass was ciliates, which constituted 14.1% +/- 3.7% (mean +/- maximum error) of the plankton biomass. Based on the results we recommend including microzooplankton in the existing phytoplankton monitoring program.
Subject: 1183 Plant biology, microbiology, virology
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