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The temporal and spatial patterns of protozooplankton abundance in a eutrophic temperate lake

journal contribution
posted on 2023-05-16, 20:46 authored by Laybourn-Parry, J, Olver, J, Rogerson, A, Duverge, PL
The temporal and spatial distribution of planktonic protozoa of Esthwaite, a eutrophic lake, was investigated at 7-10 day intervals between February to October 1988. Sarcodine protozoa were of little significance, the plankton was dominated by ciliates and flagellates. Ciliate density peaked in late May to early June with densities reaching 9.2 × 103 1-1. There was considerable variation in spatial distribution and greatest species diversity occurred in March/April. After the establishment of summer stratification the planktonic ciliates were confined to water of >25% oxygen saturation in the water column. Oligotrichs, particularly the genus Strombidium and tintinnids, and peritrichs dominated the ciliate assemblages. There was no correlation between chlorophyll a concentrations and ciliate numbers, but a correlation was apparent between ciliate numbers and flagellate density. There were significant differences between the protozooplankton communities at the different sampling sites in the lake. © 1990 Kluwer Academic Publishers.

History

Publication title

Hydrobiologia

Volume

203

Issue

1-2

Pagination

99-110

ISSN

0018-8158

Publisher

Springer Netherlands

Place of publication

Netherlands

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

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