NDLI: Mayaca fluviatilis Aubl.: an ornamental aquatic with invasive potential in Sri Lanka

Content Provider	Springer Nature Link
Author	Yakandawala, K. Dissanayake, D. M. G. S.
Copyright Year	2010
Abstract	The ornamental aquatic plant industry in Sri Lanka has grown substantially during the last decade and there is a renewed demand for several exotic species. Mayaca fluviatilis, a submerged plant used in aquaria, is not recorded as a naturally occurring plant in Sri Lanka. However, recent studies recorded it in the wet zone of Sri Lanka and certain countries have recognized it as a problematic plant. The knowledge of the mode of propagation of invasive species is vital in the management of biological invasions. Therefore, the present study was conducted to investigate the propagation ability of vegetative parts of M. fluviatilis. A field survey was conducted in the wet zone of Sri Lanka, and populations of M. fluviatilis were monitored between 2006 and 2009. The propagation ability of different maturity stages of stem cuttings (terminal, middle and basal) were investigated, and terminal stem cuttings with five different lengths (2, 4, 6, 8 and 10 cm) were used to investigate the propagation ability of fragmented vegetative parts. Terminal shoots showed the highest survival rates and significantly high (P < 0.05) shoot and root lengths compared to middle and basal parts of the stem cuttings. In the other experiment with terminal stem cuttings with different lengths, all the stem fragments were capable of developing into a new plant. Increasing lengths of fragments was significantly related to the number of roots. Nevertheless, as even the 2-cm fragment was capable of developing into a new plant, removal of even the smallest fragments is necessary to control this plant. Submerged plants can spread easily through fragmentation and manual removal will likely increase its spread. Nevertheless, it is considered as effective for small infestations. Therefore, repeated removal of plant parts can be suggested as an ecologically sound management approach to prevent further spread of M. fluviatilis since it is in the early stage of establishment.
Starting Page	199
Ending Page	204
Page Count	6
File Format	PDF
ISSN	00188158
Journal	Hydrobiologia
Volume Number	656
Issue Number	1
e-ISSN	15735117
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-09-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Alien Aquatic Invasive Mayaca fluviatilis Ornamental Propagation Zoology Ecology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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