Increasing temperature is the reason for weight loss of fish

Increasing temperature is the reason for weight loss of fish

Techno By Feb 29, 2024 No Comments


Tokyo: A new study has found that fish are losing weight due to global warming.

Research conducted at the University of Tokyo has revealed that the amount of plankton (food for fish) floating on the surface of the ocean is shrinking as a result of warming water due to rising temperatures, which the fish eat and get the nutrients they need. Not getting it.

In the study, researchers analyzed total biomass and individual weight of 13 species of fish and looked at data from 1978 to 2018 for six species from four families of fish.

The research also looked at sea water temperatures between 1982 and 2014 to see if changes in temperature have any effect on the sea surface and the surface below it.

According to the results of the study published in the journal Fish and Fisheries, there were two periods of decline in fish weight, one in the 1980s and the other in the 2010s.

Initially, the weight loss was caused by an increase in the number of native Japanese sardines, which increased competition for other types of food.

However, further analysis found that warming oceans due to climate change increased competition for food because cold, nutrient-rich water did not rise to the surface as easily.

University professor Shishi-Ichiito said that higher temperatures are causing the ocean’s surface to form an additional layer, and past studies have shown that large plankton are being replaced by smaller plankton and less nutritious jellyfish. The Gallatinius type has taken.





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