Competitive reduction of noxious Lyngbya wollei mats by rooted aquatic plants

被引：10

作者：

Doyle, RD ^{[1
]}

Smart, RM ^{[1
]}

机构：

[1] USA, Engineer Waterways Expt Stn, Lewisville Aquat Ecosyst Res Facil, Lewisville, TX 75056 USA

来源：

AQUATIC BOTANY | 1998年 / 61卷 / 01期

关键词：

competitive exclusion; Lyngbya wollei; algal mat; benthic algae; filamentous algae control; Pontederia cordata; Potamogeton nodosus;

D O I：

10.1016/S0304-3770(98)00060-6

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Establishment of native emergent or floating-leaved plants appears to offer natural and effective means to minimize the nuisance impacts of the mat-forming cyanobacterium Lyngbya wollei. This research has identified two species (Pontederia cordata and Potamogeton nodosus) which offer the potential for long-term competitive control of nuisance L. wollei mats in shallow waters. Both species significantly impacted the distribution and total mass of L. wollei mats within planted experimental plots compared to adjacent unplanted control plots. The established plants forced a redistribution of the L. wollei biomass within the water column, preventing the formation of the characteristic summertime floating mats, the most objectionable of the many nuisance aspects of this species. In addition, the L. wollei biomass was reduced by more than 50% in planted plots. This reduction in mass may have been related to reduced light and nutrient availability within the vegetated plots. In addition, oxygenation and acidification of the benthic region may have promoted the decomposition and remineralization of the nuisance mat. Published by Elsevier Science B.V.

引用

页码：17 / 32

页数：16

共 25 条

[11] DYCK LA, 1990, 30 ANN M AQ PLANT MA
[12] Greenberg A. E., 1992, STANDARD METHODS EXA
[13] MARTIN BB, 1987, J AQUAT PLANT MANAGE, V25, P40
[14] MENGLE K, 1992, PRINCIPLES PLANT NUT
[15] MONTEGUE RL, 1991, J AQUAT PLANT MANAGE, V29, P88
[16] INFLUENCE OF AQUATIC MACROPHYTES ON PHOSPHORUS AND SEDIMENT POREWATER CHEMISTRY IN A FRESH-WATER WETLAND
MOORE, BC
LAFER, JE
FUNK, WH
[J]. AQUATIC BOTANY, 1994, 49 (2-3) : 137 - 148
[17] NITROGEN-FIXATION BY THE BENTHIC FRESH-WATER CYANOBACTERIUM LYNGBYA-WOLLEI
PHLIPS, EJ
IHNAT, J
CONROY, M
[J]. HYDROBIOLOGIA, 1992, 234 (01) : 59 - 64
[18] RITTER WF, 1982, WATER QUALITY FEASIB
[19] SMART RM, 1993, WETLANDS, P663
[20] SPEZIALE B J, 1991, Lake and Reservoir Management, V7, P107

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