NDLI: Abundance and Community Structure of Picoplankton and Protists in the Microbial Food Web of Barguzin Bay, Lake Baikal

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Book review: Integrated assessment of running waters in Europe, Hering, D., P.F.M. Verdonschot, O. Moog & L. Sandin (Eds.) Developments in Hydrobiology 175/Hydrobiologia 516 (2004) Kluwer Academic Publishers, Dordrecht.

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Abundance and Community Structure of Picoplankton and Protists in the Microbial Food Web of Barguzin Bay, Lake Baikal

Content Provider	Springer Nature Link
Author	Ue, Hiroyuki Kata, Toshiya Naka, Shin Ichi Mitamura, Osamu Anbutsu, Kaori Satoh, Yasuhiro Drucker, Valentin Sugiyama, Masahito
Copyright Year	2005
Abstract	We examined the vertical abundance of bacteria, phytoplankton and protists along a transect of six stations from near-shore (Stn. 1) to off-shore (Stn. 6) in Barguzin Bay of Lake Baikal, in the summer of 2002. Chlorophyll concentrations at Stn. 1 were higher (>10μg l−1) than at the other five stations (<3μg l−1). Planktonic and sessile diatoms dominated at Stn. 1, while pico-phytoplankon was dominant at other stations. Densities of heterotrophic bacteria were high in both the epilimnion and the thermocline at all stations. Nanoflagellates were abundant in the epilimnion, and ciliates in the thermocline, but no horizontal trend could be found for these heterotrophs. At Stn. 1, not only filter feeding (Strombidium and Strobilidium) and raptorial (Balanion) ciliates but also predatory ciliates (Prorodon and Spathidiosus) dominated, while at other stations only the filter feeding and raptorial ciliates were dominant. In off-shore stations (Stns. 5 and 6), significant correlations were detected between concentrations of chlorophyll a and density of filter feeding or raptorial ciliates, suggesting tight food linkages between phytoplankton and these ciliates. The concentration of dissolved organic carbon (DOC) was significantly correlated with chlorophyll a concentration, although there was no significant correlation between DOC concentration and bacterial density. We suggest that there is a shift of the dominant food linkage from a herbivorous food chain in near-shore areas to a microbial food web in off-shore areas in Barguzin Bay of Lake Baikal.
Starting Page	263
Ending Page	270
Page Count	8
File Format	PDF
ISSN	13862588
Journal	Aquatic Ecology
Volume Number	39
Issue Number	3
e-ISSN	15735125
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bacteria Ciliates Distribution Hetetrtrophic flagellates Phytoplankton Hydrobiology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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