Dangerous Amazon Catfish Found in Pakistan Rivers and Lakes

The recent sightings of the Amazon sailfin catfish in Pakistan have sparked concern among environmental experts, who warn that the invasive species could severely impact native aquatic life and the local fishing economy.

WWF Pakistan reported that the catfish was recently spotted at Karachi Fish Harbor, while another specimen was recovered from a reservoir near Sukkur. Native to Latin America, the species has unintentionally entered Pakistan’s rivers and reservoirs and is now spreading quickly across Sindh and southern Punjab.

Characterized by its robust, armored body covered in bony plates, the sailfin catfish competes aggressively with native fish for food and habitat. It also preys on smaller species, spreads diseases, and disrupts the balance of local aquatic ecosystems.

“This species, along with 25 other non-native fish that have become invasive over the past three decades, is displacing indigenous fish, reducing biodiversity, and threatening the livelihoods of local fishermen,” WWF Pakistan stated.

Previous invasions, such as tilapia in lakes like Manchar and Keenjhar, caused significant declines in fish production, a trend experts fear may worsen with the continued spread of sailfin catfish.

WWF Pakistan has also confirmed the presence of the Red-Bellied Pacu, another invasive catfish, in the Chenab River and the Kandhkot area. Authorities caution that once such invasive species establish themselves, complete removal is extremely difficult.

WWF Pakistan has called for strict monitoring and quarantine measures for imported non-native fish, including the Amazon sailfin catfish. The organization urges the Ministry of Climate Change and other relevant authorities to take immediate steps to prevent further ecological harm.

In recent years, social media promotions for Red-Bellied Pacu seeds and other exotic catfish, including the sailfin catfish, have encouraged their import and farming, despite repeated warnings from environmental officials.

Experts warn that continued introduction of these species could endanger Pakistan’s aquatic biodiversity and the economic security of its fishing communities.