ISSN:
1573-5117
Keywords:
microplankton
;
rotifers
;
arctic lakes
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Microplankton community structures and abundance was assessed in lakes at the Toolik Lake LTER site in northern Alaska during the summers of 1989 and 1990. The microplankton community included oligotrich ciliates, but rotifers and zooplankton nauplii comprised greater than 90% of total estimated heterotrophic microplankton biomass. Dominant rotifer taxa included Keratella cochlearis, Kellicottia longispina, Polyarthra vulgaris, Conochilus unicornis and a Synchaeta sp. Microplankton biomass was lowest in highly oligotrophic Toolik Lake (〈 5 µgCl−1 at the surface) and highest (up to 55 µCl−1) in the most eutrophic lakes, experimentally fertilized lakes, and fertilized limnocorrals, consistent with bottom-up regulation of microplankton abundance.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00013458
Permalink