Kerala Battles Invasive Species Threat

The Kerala State Biodiversity Board (KSBB) has developed a strategic seven-point plan to mitigate the impact of invasive alien species (IAS) on the state's biodiversity. This policy document, submitted to the state government, prioritizes preventing the spread of IAS and enhancing public awareness and capacity for management.

The plan advocates for strict quarantine, risk assessments, and prioritized research on IAS impacts. It also stresses engaging local communities in management efforts and developing scientific methods for verifying species invasiveness. Economic utilization of invasive species is suggested where eradication is unfeasible.

Inland aquatic ecosystems in Kerala host 32 alien species, including 28 fish. The Mozambique tilapia is notably pervasive, present in all rivers, reservoirs, and lakes. Forest ecosystems face threats from invasive plants like Chromolaena odorata, hindering native species regeneration. Alien insect pests also pose a significant concern for agriculture.

Introductions occur intentionally through aquaculture and trade, or unintentionally via ballast water and natural disasters. Experts emphasize the need for strong measures and an exclusive legal framework to address these rapid-spreading, competitive species that disrupt natural biodiversity and incur high removal costs. Calls for a unified government system to tackle invasive species are growing.