Apparatus for measuring diving depth of invertebrates

Abstract

The invention discloses an apparatus for measuring the diving depth of invertebrates. The apparatus mainly comprises a measuring pipe and partition plates. The upper end of the measuring pipe is opened, and the lower end is enclosed. One side of the pipe wall is provided with a semi-circular seam along the circumference for every 10 cm; two ends of each partition plate is in a semi-circle shape and a square shape respectively; the diameter of the semi-circle end is the same as that of the measuring pipe; and the semi-circle end of the partition plates is inserted into the measuring pipe along the semi-circular seam. The length of the measuring pipe is 150 cm and the diameter is 160 mm. The thickness of the semi-circular seam is 2 mm; and the thickness of the partition plates is 2 mm. A substrate is filled into the measuring pipe, invertebrates are placed on the measuring apparatus, after the invertebrates enter the measuring apparatus, the partition plates are inserted to divide the measuring apparatus into different depth sections, and the number of invertebrates in each depth section can be counted. The wild environment can be simulated in an artificial pool, the diving depth of invertebrates and invertebrate number can be directly measured, and the shortages that the wild environment is complicated and invertebrates are difficult to control because the action capacity of invertebrates is strong in the wild are solved.

Description

technical field [0001] The invention relates to a device for measuring the diving depth of invertebrates, which belongs to the technical field of marine biology. Background technique [0002] There are a large number of invertebrates inhabiting sediments in tidal flats. Most of them use various organisms or organic matter in water bodies and sediments as sources of nutrition. Their behaviors and physiological activities such as feeding, diving, excretion, etc. The distribution and flow of biogenic elements have important effects. Among them, the drilling depth determines their ability to bring organic matter and biogenic elements from the water body or surface layer to the deep layer. The current method of investigating the vertical distribution of organisms in the sediment mainly uses a tubular mud sampler to take columnar sediment samples, and then analyzes its distribution in sections, or uses the excavation method to judge the drilling depth, which is cumbersome to oper...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a device for measuring the drilling depth of invertebrates, so as to solve the problem that the method of using traditional mud extractors to collect sediments, and then observe and analyze in sections is cumbersome, and the types of invertebrates collected are different. It is not representative, or it is difficult to obtain accurate data by means of excavation, and it is difficult to observe the drilling depth of invertebrates

Images