Experimental device and application method for in situ study of seawater microplastic niche

Abstract

The invention provides an experimental device for an in-situ research of an ecological niche of seawater micro-plastic and an application method, and belongs to the field of marine environments. The experimental device comprises an anchoring system, a bearing system, a ballasting system and a collection system, wherein the anchoring system is connected with the bearing system; the ballasting system is connected above the bearing system; the collection system is used for collecting an obtained sample. According to the experimental device provided by the invention, experimental conditions consistent to environment parameters including natural seawater water temperature, salinity, pH (Potential of Hydrogen), nutrient salt and the like are created to carry out an in-situ experiment; the disadvantages of uncertainty and complexity of investigating and collecting materials, shapes and sizes of the micro-plastic on the scene, and difficulty in recovering a real marine environment under laboratory conditions are overcome. Meanwhile, the ballasting system in the device realizes automatic upward floating and sinking of the bearing system, and a sample is convenient to feed and collect. Furthermore, the collection system has good shipboard operation coordination performance and is rapid in collection; the application of the device provided by the invention provides important guarantees for analyzing structure characteristics of the ecological niche of the micro-plastic and correlation with environment factors.

Description

technical field [0001] The invention belongs to the field of marine environment, and in particular relates to an experimental device and a use method for in-situ research on seawater microplastic ecological niches. Background technique [0002] As a global problem that poses an increasingly serious threat to marine life, plastic pollution has attracted great attention from researchers, and it is considered to be an important emerging threat to current global environmental protection issues. The overall financial cost of the presence of plastic in marine ecosystems is conservatively estimated at $13 billion per year, according to two reports released at the opening of the first United Nations Environment Assembly. Although plastic pollution has attracted international attention, the understanding of the behavior of plastics, especially microplastics, in the marine environment is still developing. Researchers have pointed out that plastic debris has the richest community stru...

AI Technical Summary

Problems solved by technology

The current research on the structure of microbial communities on microplastics is based on field sampling surveys, and the complexity and uncertainty of niche analysis caused by the diversity and asynchrony of microplastic samples collected in field surveys is very difficult. It is difficult to analyze the dominant environmental factors affecting the niche characteristics of microplastics

At present, the experimental device for the in-situ study of the seawater microplastic niche has not been carried out in China, and there are no relevant reports abroad

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