Catfish on Lake Garda: The predator threatens the ecosystem and even dogs!

Catfish on Lake Garda: The predator threatens the ecosystem and even dogs!

An alarming population of large catfish, locally known as “torpedoes,” is spreading on Lake Garda in Italy. These voracious predators pose a threat to the ecosystem and local wildlife. Fishermen warn that the catfish, which can grow up to three meters long and weigh 200 kilograms, could pose a threat to ducks, cormorants and possibly even smaller animals such as dogs. Despite these warnings, there are currently no confirmed reports of catfish actively preying on dogs. The development of the catfish population is favored by climate change as the fish prefer warmer water.

Lake Garda offers ideal conditions for catfish, with mild water, plenty of food and few natural enemies. How ruhr24.de Reportedly, higher water temperatures promote the growth and reproduction of this fish species. The fishermen on Lake Garda are therefore demanding support from the authorities in order to maintain the delicate ecological balance.

A problem of epic proportions

Marco Brognoli, an experienced underwater fisherman, describes the current situation as a “problem of epic proportions”. The area between Sirmione and Lazise, ​​where the conditions for catfish reproduction are optimal, is particularly affected. Brognoli has been observing an increasing number of catfish for the past five years, especially specimens over two meters.

In addition to having a devastating impact on fish stocks, the catfish prey on birds and could even endanger small dogs. During a recent dive, 14 catfish were harpooned within just 200 meters, underscoring the urgency of the situation. To address this problem, Brognoli specifically calls on the authorities to set up collection points and disposal solutions as well as targeted selection actions with the support of underwater fishermen.

The support of the authorities is required

The reasons for the rapid increase in the catfish population are mild winter temperatures, a large food supply and a lack of regulation. Brognoli also emphasizes the need for financial support to replace damaged equipment and enable effective measures to combat the catfish plague. He warns that Lake Garda could potentially suffer the same fate as other lakes that have been almost emptied by catfish overpopulation.

Robert Arlinghaus from the Leibnitz Institute for Freshwater Ecology and Inland Fisheries notes that vacationers usually don't have to worry about the catfish because they are nocturnal and do not pose a direct threat to people. However, concerns remain among fishermen and environmentalists that without appropriate measures, the ecological balance in Lake Garda could be seriously threatened.