A system and research method for studying the long-term acidification adaptability of macroalgae

Abstract

A system and research method for long-term acidification adaptability research of large marine algae, belonging to the field of algae physiological ecology, it includes a breeding workshop and a long flow system in the workshop, the workshop is located within 1km from the natural sea area, and the roof of the workshop is made of translucent glass steel tiles The water system of the workshop is composed of a water storage tank, a carbon dioxide enrichment pool and an algae breeding pool; the water in the water storage tank is drawn from a natural sea area, and the water storage tank, the carbon dioxide enrichment pool and the algae breeding pool three use drainage pipes Unicom, the drainage pipe is equipped with valves to control the water intake and discharge; the carbon dioxide enrichment pool is equipped with a carbon dioxide enrichment device, and the pH value of seawater is adjusted by the inflation method; the present invention establishes A relatively stable seawater acidification culture system for macroalgae was developed, and the pilot-scale research on the long-term acidification adaptability of macroalgae under natural conditions was realized by using this system.

Description

technical field [0001] The invention belongs to the field of marine environment monitoring, and in particular relates to a system and a research method for studying the long-term acidification adaptability of large marine algae. Background technique [0002] Affected by global climate change and human activities, carbon dioxide (CO 2 ) emissions continued to increase. As a natural carbon dioxide storage pool, the ocean absorbs about 30% of the total carbon dioxide emitted by humans, causing ocean acidification. Since the Industrial Revolution, the pH of the ocean surface has dropped by 0.1 units. By 2100, the value is projected to decline further by 0.3 to 0.4 units. The increase in seawater acidity will change the chemical balance of seawater, and pose a huge threat to various marine organisms and even ecosystems that depend on the stability of the chemical environment. In the process of irreversible ocean acidification, algae must adjust physiologically, biochemically ...

AI Technical Summary

Problems solved by technology

However, more and more studies have found that indoor simulation experiments have space limitations, and the experimental period is short, which makes it difficult to reflect the physiological adaptability of algae to ocean acidification under natural conditions; on the other hand, although a few foreign scholars use pH differences in natural sea areas Carry out long-term adaptability research, but it is difficult to maintain a relatively stable seawater carbonate system, and the repeatability of the experiment is poor

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