Climate Change and Invasive Species Threaten Adriatic Fishermen's Livelihood in Croatia

Climate change and maritime traffic bring new fish species to the Adriatic, endangering native species and traditional fishermen's livelihoods.

For generations, Croatian fisherman Marko Kristic has relied on the Adriatic Sea for his livelihood. However, the effects of climate change and increasing maritime activity have led to the introduction of numerous new species in the region, posing a significant threat to traditional fishing practices. Kristic is now facing the challenge of dealing with these unfamiliar species, including the Mediterranean parrotfish, which local residents are hesitant to consume.

Environmental Impact

Studies indicate that the Adriatic Sea is experiencing a rise in temperature, leading to the migration of invasive species and endangering the survival of hundreds of native fish species. According to 2023 data from the Italian National Agency for New Technologies, Energy and Sustainable Economic Development, the Mediterranean is currently the fastest-warming sea on the planet. Nenad Antolovic, a scientist at the Institute for Marine and Coastal Research, has noted a concerning decline in fish stocks due to overfishing, climate change, and the invasion of new species. Approximately 460 native fish species are now at risk due to these factors.

Invasive Species

Experts have identified several invasive species that have become particularly problematic in the Adriatic Sea. The presence of the toxic lionfish, with its potentially fatal spines, poses a significant threat to both native fish populations and human safety. Additionally, the blue crab, considered one of the top 100 worst invasive species in the Mediterranean, has been causing disruptions in the local marine ecosystem. Furthermore, the green crab has seen its populations reduced in certain areas and completely eradicated in others, signaling a significant shift in the region's ecological balance.

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