Method for monitoring growth and calcification rate of hermatypic coral in natural sea area

Abstract

The invention discloses a method for monitoring the growth and calcification rate of hermatypic coral growth in a natural sea area. The method comprises the following steps: 1, setting a substrate in a coral reef distributed sea area, and mounting a coral reef fixing substrate on the substrate; 2, collecting corallum, weighing the relative weight M0 of the corallum in preset liquid by using a weighing device; adhering the corallum in a coral accommodating substrate to form a connecting body, airing the connecting body, and weighing the relative weight M1 of the connecting body by the weighing method; 3, connecting the coral accommodating substrate with the coral fixing substrate through a connecting piece, and domesticating the coral accommodating substrate and the coral fixing substrate in situ in the coral reef distributed sea area for a while; 4, separating the coral accommodating substrate from the coral reef distributed sea area, weighing the relative weight Mi+1 of the connecting body; 5, connecting the coral accommodating substrate with the coral fixing substrate through the connecting piece, culturing the coral accommodating substrate and the coral fixing substrate for culturing time ti in the coral reef distributed sea area, repeating the step 4, and recording the relative weight Mi+2 of the connecting body after the time ti; and 6, acquiring the growth and calcification rate of the corallum with unit weight in ti time slot through (Mi+2-Mi+1) / (Mi+1-M1+M0) / ti.

Description

technical field [0001] The invention belongs to the research field of coral reef physiology and ecology, and relates to a method for monitoring the growth calcification rate of reef-building corals in natural sea areas. Background technique [0002] Accurately measuring the growth rate or calcification rate of reef-building corals in natural sea areas can analyze the pressure of environmental stress, the correlation with certain environmental factors and the intensity of their influence. If the dominant species of a coral reef ecosystem is used as the experimental object, it can reflect the overall growth status of the system. Therefore, this method is an important means of coral reef ecosystem research. It can be used to quantitatively explore the seasonal and interannual changes in the growth rate or calcification rate of reef-building corals. It can accurately measure the growth and stress conditions of corals and even coral reef ecosystems in a certain period of time, a...

AI Technical Summary

Problems solved by technology

However, in previous on-site cultivation experiments, there are usually two methods. First, the experimental coral body is fixed on a large substrate, which cannot be moved and weighed, so it is not suitable for this method; The object sticks to a small piece of PVC board, but it is difficult to prevent the attachment of other organisms, which causes a large error in the weighing accuracy

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