A device for rapid on-site screening of plankton in seawater

Abstract

The invention relates to the technical field of screening equipment, and discloses a device for quickly screening plankton in seawater on site, including a screen box, a support plate is arranged inside the screen box, and a collection box for collecting waste water is arranged on the bottom of the screen box. , the support plate is provided with flow holes for the circulation of waste water, the filter barrel with the top opening is arranged on the support plate, and the filter assembly can also be disassembled on the support plate, and the filter assembly is arranged at least two along the radial interval of the filter barrel. The filter assembly includes a bracket assembled on the support plate and a screen arranged on the bracket. The aperture of the screen of each filter assembly decreases gradually along the direction away from the filter bucket, and the flow holes are opened between the filter assembly and the filter bucket away from the filter bucket. between the sieve boxes. The sieves of each set of filter components can screen plankton with corresponding particle sizes, so as to obtain plankton with corresponding particle sizes for research, and screen plankton with different particle sizes at one time to improve the screening rate and meet the needs of research.

Description

technical field [0001] The invention relates to the technical field of screening equipment, in particular to a device for quickly screening plankton in seawater on site. Background technique [0002] Plankton are tiny organisms suspended in water, which can only be observed with the help of a microscope. They constitute the basic food chain of the ocean. The discussion of their living methods not only involves the balance of marine ecology, but also develops many modern medical sciences. Therefore Need to screen plankton to make specimens and study their ecology. [0003] The Chinese utility model patent with the authorized notification number CN204097142U discloses a zooplankton sample filter, which includes a cylinder and a base, a sieve is provided between the base and the cylinder, and the base includes a ring corresponding to the cylinder and A sealing collar connected with the circular ring, the outer circumference of the circular ring or the inner wall of the sealing...

AI Technical Summary

Problems solved by technology

However, when studying plankton, each individual zooplankton can belong to one of a series of particle size groups, and the particle size spectrum composed of different biological particle sizes is useful for quantitatively estimating the growth, death, and nutritional processes of plankton. Significance, it is beneficial to analyze the functional groups and energy flow of the ecosystem, so it is necessary to filter the plankton in stages, and the existing zooplankton sample filter has a fixed size screen, which is difficult to meet the needs of the research

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