The increase in organic matter causes the accumulation of toxic mercury in fish
Text created by automatic translator Elia and has not been subsequently revised by translators. Elia Elhuyar
Fish. Ed. Creative Commons
The increase in organic matter in aquatic ecosystems means an accumulation of toxic mercury seven times more in zooplankton. According to a study in Sweden, the rains caused by climate change cause the organic matter to get less light inside the water. This makes the trophic chain from being an autotroph to being mainly heterotrophic, that is, the zooplankton, which feeds on organic matter, becomes the main one. According to the researchers, in the heterotrophic trophic chain the accumulation of mercury increases until reaching the fish we eat. These results demonstrate, therefore, that climate change affects the accumulation of mercury in fish. The study was published in the journal Science Advances.
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