Authors
Paul D Champion, Chris C Tanner
Publication date
2000/12
Journal
Hydrobiologia
Volume
441
Pages
1-12
Publisher
Kluwer Academic Publishers
Description
Introduced submerged macrophytes have come to dominate many shallow water bodies in New Zealand, and are a common component of many lowland streams. We investigated the seasonal variation of macrophyte abundance, its influence on flow and channel volume, and the implications of this on stream habitat and functioning in Whakapipi Stream, a typical lowland stream draining a predominantly agricultural catchment.
Abundance of macrophytes over the summer was primarily controlled by the phenological cycles of the two dominant species. Mean minimum total macrophyte biomass (36 g m−2) and cover (7%) occurred in winter (June and August, respectively), and mean maximum biomass (324 g m−2), and cover (79%) occurred in late summer (March and February respectively). Egeria densa comprised the majority of both cover and biomass during the study period, except early …
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Scholar articles
PD Champion, CC Tanner - Hydrobiologia, 2000