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Invasion of aquatic alien species in Fiji and Solomon Islands
Author(s):
Boseto, D.
Year: 2006
Notes: Melanesian Geo, 20-22, 3
Held at: USP
ASFA Subject(s): Biodiversity, Resource management, Biological surveys, Introduced species, Endemic species, Ecosystem disturbance, Freshwater fish, Inland water environment, Freshwater ecology
Abstract: Island ecosystems which have evolved in isolation often have relatively fewer plants and animals and these are vulnerable to alien species. The concept of alien species is defined and the importance of protecting native species is presented. Some of the aquatic invasive species encountered during freshwater fish surveys in Fiji and the Solomon Islands are described and their impact on local biodiversity discussed. The introduced species are: water hyacinth (Eichhornia crassipes), Nile perch (Oreochromis niloticus), Western mosquitofish (Gambusia affinis), livebearers or mollies (Poecilia reticulata) and cane toad (Bufo marinus). The management implications for aquatic exotic species are also outlined in the context of Melanesia.
Control No.: 00013822.nul
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Freshwater fish of the Melanesian region
Author(s):
Boseto, D.
Year: 2005
Notes: Melanesian Geo, 12-13, 1
Held at: USP
ASFA Subject(s): Anthropogenic factors, Environmental legislation, Resource management, Biological surveys, Introduced species, Endemic species, Ecosystem disturbance, Freshwater fish, Inland water environment, Freshwater ecology
Abstract: Freshwater resources are under threat around the globe from anthropogenic influences. The island nations of Melanesia are particularly vulnerable due to their limited freshwater resources, burgeoning populations and increasing mining and logging activities. Data suggest 20-35% of freshwater fishes are vulnerable, endangered or extinct, mostly because of habitat alteration and the introduction of exotic species. This fauna is an important source of protein for rural Pacific islanders, especially those living far inland, but there has been little study of the ecology and possible utilization of endemic species. Low numbers of recorded freshwater species in some countries can be attributed to a lack of research, leading to an absence of statutory regulations and enforcement measures to protect local fauna. Biodiversity surveys and cooperative resource management plans are urgently needed to protect aquatic environments.
Control No.: 00013819.nul
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