It has been observed that the favorable economic impacts of tilapia eroded over time primarily due to its invasive nature. A number of causes can be identified in this regard. First, it has been noticed that due to high proliferation rate, the size of tilapia has decreased over time. Since the unit price of fish increases with the size of fish, the decrease in size has reduced profitability of tilapia fishing.

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From a socio-economic perspective, there are benefits and costs that result from the presence of water hyacinth. Some of them are linked to direct impacts and some are ecosystem related indirect impacts on fresh water bodies and their uses. The most direct impacts are to boating access, navigability and recreation; impede irrigation, access to fishing grounds and fish catch ability and act as prime habitat for mosquitoes.

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