Research device and method for plankton transfer behaviours

Abstract

The invention discloses a research device and method for plankton transfer behaviours. The research device comprises a group of floating fixed frames which are arranged on an research object water surface, wherein the floating fixed frames are sequentially arranged side by side tightly; a light filter membrane is detachably arranged on each floating fixed frame; a through hole is formed in each light filter membrane, and the light filter membrane further comprises a plankton net which can be lifted and dropped from the through hole; the size of the through hole is adaptive to the net hole diameter of the plankton net; a lifting rope is arranged on the plankton net; a light filter membrane hole cover capable of being opened and closed is arranged on the through hole; and the size of the light filter membrane hole cover is adaptive to the size of the through hole. The research device disclosed by the invention can simply and effectively realize the research of influences of water body solar radiation in situ on vertical and horizontal transfer behaviours of zooplankton with different body lengths and sizes; and meanwhile, research results are reliable, and repeatability is strong.

Description

technical field [0001] The invention relates to the field of plankton migration behavior, in particular to a research device and method for plankton migration behavior. Background technique [0002] The diurnal migration phenomenon (horizontal migration, vertical migration) of aquatic zooplankton (cladocera, coilers, etc.) is one of the largest biomass migration activities on the earth. The migration behavior of zooplankton is related to the fluctuation of environmental factors. There are many factors affecting the migration of zooplankton, including biotic and abiotic factors. For example, bait distribution, predator avoidance, water column temperature, light quality and light intensity changes, etc. In areas with large aquatic plants or coral reefs, horizontal migration can avoid crossing the thermocline, and has advantages in energy utilization compared to vertical migration (Cooke et al., 2008), which is very important for avoiding ultraviolet radiation ecological sig...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is a research device and method for the migration behavior of plankton, which solves the problem that there is no research system in the field of plankton migration in the existing plankton migration to explain the influence of ultraviolet radiation of different wave bands and sunlight radiation of different intensities on the regulation of plankton behavior, especially To study the influence of plankton vertical and horizontal migration activities on the response of different bands of ultraviolet radiation in in situ water bodies, and the existing research equipment cannot meet the needs, and the structure is not simple and reasonable.

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