Turkey: Increase in jellyfish in the Sea of Marmara negatively affects fisheries

Frozen Jellyfish

Published Feb 25, 2024

Tridge summary

A study conducted by Istanbul University and the Ministry of Environment, Urbanization and Climate Change reveals that the surge in jellyfish population in the Marmara Sea is adversely impacting the fishing industry. The overpopulation of jellyfish is causing obstructions in fishing nets, preventing fishermen from catching their desired species, and leading to increased time and costs spent at sea. The research also indicates a decline in the diversity of breeding fish and the quantity of fish eggs, as jellyfish feed on them.

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Original content

It was determined that the excessive increase in jellyfish in the Marmara Sea negatively affected fisheries and caused a decrease in fish species. Within the scope of the project titled "Causes and consequences of jellyfish increase in the Marmara Sea" initiated by Istanbul University (IU) Faculty of Aquatic Sciences and the Ministry of Environment, Urbanization and Climate Change, the effects of jellyfish on fisheries were investigated. In the research, where a face-to-face survey was conducted with 150 fishermen in the Marmara Sea, the negative effects of jellyfish on fish were also studied with the "R/V Yunus-S" research ship. As a result of the study, it was determined that the excessive increase in jellyfish in the sea negatively affects fisheries and causes a decrease in fish species. "Industrial fishermen can fight against jellyfish" Istanbul University (IU) Faculty of Aquatic Sciences, Department of Fisheries and Aquaculture Processing Technology, Lecturer Prof. Dr. Firdes ...

Source: Sondakika