Photo: DPAPet goldfish let out into the wild in and around Munich are quickly forming into shoals and starving out the indigenous fish. Authorities in Munich warned on Monday that setting free pet fish into public ponds and lakes is having a damaging effect on natural fish populations. In the wild, the goldfish are forming aggressive shoals that are eating everything in the lake, leaving nothing for the indigenous population. Because the native fish are quickly dying out, authorities have forbidden the release of any pet fish into the wild, threatening fines for anyone caught doing so. The press release said that it was the owners' responsibility to act, should their pet fish get too big for the pond.

Source: The Local March 20, 2017 16:07 UTC