Diel zooplankton community feeding activity and filtration rates of Pseudoboeckella volucris and Daphniopsis studeri on sub-antarctic Marion Island

Experiments measuring zooplankton filter-feeding rates using a super(14)C-labelled green alga were carried out in situ for the first time in three shallow sub-antarctic lakes. The number and biomass of zooplankton were high in samples from two lakes enriched by penguin and seal faeces, and low in sa...

Full description

Saved in:
Bibliographic Details
Published in:Hydrobiologia 1988-07, Vol.164 (1), p.13-21
Main Author: Jarvis, Andrew C.
Format: Article
Language:English
Subjects:
Daphniopsis studeri
Freshwater
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Experiments measuring zooplankton filter-feeding rates using a super(14)C-labelled green alga were carried out in situ for the first time in three shallow sub-antarctic lakes. The number and biomass of zooplankton were high in samples from two lakes enriched by penguin and seal faeces, and low in samples from a peat-lined lava-lakelet not biotically enriched. A diel survey of the lava-lakelet over 48 h showed that no vertical migration or diel variation in filter-feeding rate occurred in the strongly pigmented copepod Pseudoboeckella volucris population, the most abundant entomostracan present. The unpigmented cladoceran Daphniopsis studeri had a high in situ filter-feeding rate, exhibited very marked vertical migration, and was primarily a nocturnal grazer.
ISSN:0018-8158
1573-5117
DOI:10.1007/BF00014346