CN101406168B - Method for restoring coral reef ecosystem and attachment device for reef-building stony coral larvae - Google Patents

Abstract

A method for restoring a coral reef ecosystem and its attachment device for reef-building coral larvae. The proposed method for restoring the coral reef ecosystem is based on the technology of reef-building coral larvae attachment, and the reef-building coral larvae attachment device is placed on the seabed of the coral reef sea area. The artificial attachment substrate is used to induce the attachment of reef-building coral larvae, and then the artificial substrate with reef-building coral larvae is transplanted to the degraded area of the coral reef to restore the coral reef ecosystem. The reef-building coral larvae attachment device designed by the present invention is composed of a support net and a support frame thereof, and a plurality of detachable attachment plates whose substrate is pottery clay or ceramic material are installed on the support net, which is suitable for reef-building coral larvae to attach and The next step of reef-building coral transplantation can be carried out. The invention is an ideal coral reef replenishment restoration method at present, and can effectively restore the coral ecosystem in a large area of coral reef degradation sea area.

Description

Method for restoring coral reef ecosystem and attachment device for reef-building stony coral larvae

technical field

The invention relates to a method for restoring the coral reef ecosystem and a reef-building coral larva attachment device dedicated to the method, which can attach the reef-building coral larvae and perform the next step of reef-building coral transplantation.

Background technique

Due to the warming of seawater and other reasons, large areas of coral bleaching and death in the world have been caused, and my country's coral reefs are also facing serious degradation. Human intervention is urgently needed for the replenishment and restoration of coral reefs. The traditional supplementary method of coral reef restoration is mainly based on the transplantation of adult reef-building corals, that is, transplanting reef-building corals of suitable size and type to degraded areas to improve the biodiversity of coral reef ecosystems in degraded areas. Such transplantation mainly There are two types: one is to directly collect the whole adult reef-building coral for transplantation; the other is to collect a large piece of reef-building coral, and then divide it into small pieces for reproduction. Sea areas with severe coral degradation. However, because adult reef-building coral transplantation requires a large number of adult reef-building coral sources, it is easy to spread coral diseases and there are problems such as single species of transplantation, it is not suitable for implementation in large-scale degraded areas, and it costs a lot of money, which will cause damage to the donor coral reef ecosystem. A lot of damage.

Contents of the invention

The purpose of the present invention is to propose a method for restoring the coral reef ecosystem based on the reef-building coral larva attachment technology and the reef-building coral that can make the reef-building coral larvae attach to the method and can carry out the next step of reef-building coral transplantation Larval attachment device.

The method for restoring coral reef ecosystem proposed by the present invention, its technical scheme comprises the following steps:

(1) Place reef-building coral larva attachment devices in the coral reef sea area. The attachment device has a support net fixed on the support frame, and a plurality of attachment plates for coral polyp larvae are installed on the support net. The attachment plates are made of pottery clay or pottery The material is used as the attachment substrate for coral polyp larvae, and the supporting frame of the attachment device is placed on the seabed of the coral reef sea area, so that the attachment plate on the support net faces the direction of the ocean current, and the placement time is about 10 days before the reef-building coral ovulation, so that the coral polyp larvae can attach on the attachment plate;

(2) After the coral polyp larvae are attached to the attachment plate, recover the reef-building coral larvae attachment device, carefully remove the attachment plate from the support frame, put it in a container with seawater, and then move the attachment plate to the coral reef degraded area.

In the above step (2), in order to improve the survival rate of stony coral larvae, it is also possible to temporarily place the attachment plate with coral larvae attached to the sea area where stony coral grows well for a period of time, and then move it to the coral reef degradation area .

In order to adapt to the implementation of the method of the present invention, the inventor has designed a reef-building coral larva attachment device that can allow reef-building coral larvae to attach and carry out the next step of reef-building coral transplantation. The structural feature of the reef-building stony coral larvae attachment device is that it is composed of a support net and its support frame. The support frame has a bottom frame or a base and a side frame fixed on the bottom frame or base. The bottom frame or the base form an included angle of 15° to 75°, the support net is installed and fixed on the side frame, and a plurality of detachable attachment plates whose substrate is clay or ceramic material are installed on the support net.

When implementing the method for restoring the coral reef ecosystem, the reef-building coral larvae attachment device is placed on the seabed of the coral reef sea area. The base should be large and stable. The following structural scheme is recommended for this purpose:

The support frame is composed of two inclined side frames forming an angle to form a roof-shaped frame, and a fixed supporting net is installed on one of the inclined side frames. Support feet can also be set on the bottom frame of the roof-shaped frame, and the support feet can be inserted into the seabed to fix when the reef-building coral larva attachment device is placed.

In the method for restoring the coral reef ecosystem provided by the present invention, the artificial attachment matrix is placed on a fixed frame, and placed in the coral reef sea area before the reef-building coral ovulates, and after the reef-building coral larvae are attached, the attachment plate is recovered and placed on the coral reef Degraded sea areas can effectively restore coral ecosystems in large areas of coral reef degraded sea areas. The provided reef-building coral larvae attaching device can be placed in different waters of the coral reef plate to purposely attach different types of reef-building coral larvae, and then the attachment plate with the reef-building coral larvae can be placed in the coral reef degradation area. The present invention can not only provide sufficient sources of reef-building coral larvae for coral reef degradation areas, ensure a high survival rate, but also ensure species diversity, avoid damage to reef-building coral larvae donors, and avoid reef-building coral disease. Problems such as dispersal and the emergence of single-species transplantation of reef-building stony corals. It is currently the most ideal means of supplementing and restoring coral reefs.

Description of drawings

Fig. 1 is a structural schematic diagram of the reef-building coral larva attachment device of the present invention.

Detailed ways

The following examples illustrate the present invention in detail and should not be regarded as limiting the present invention.

The specific implementation process of the embodiment of the method for restoring the coral reef ecosystem based on the reef-building stony coral larva attachment technology is as follows:

Prepare the attachment device for reef-building coral larvae as shown in Figure 1, which is composed of a support net and its support frame. The support frame is composed of a bottom frame 1 and two inclined side frames 2, 3 to form a roof-shaped frame, and each frame is welded with threaded steel. On the side frame 2, a fixed support net 4 is installed, the support net is formed by painting an ordinary barbed wire net, and a plurality of attachment plates 5 whose matrix is pottery clay or ceramic material are arranged and fixed on the support net 4, and these attachment plates are designed to be plate-shaped, Easy to fix and remove.

The main parameters of the reef coral larva attachment device are as follows: the specifications of the two inclined side frames 2 and 3 of the support frame are 1m×1m, the angle between the two frame surfaces is 60°, the gap between the side frame 2 and the bottom frame 1 The angle is also 60°, and the length of the 4 fixed feet is 15cm. The specification of the attachment plate 5 is 10cm×10cm, and the thickness is 1cm.

Implement the work process of restoring the coral reef ecosystem: place the reef-building coral larvae attachment device on the seabed of the coral reef sea area, and the placement time is about 10 days before the reef-building coral ovulates. The placement of the attachment device will consider factors such as facing waves and back waves, so that the attachment plates on the support net face the direction of the sea current, which is beneficial to the attachment of different types of reef-building coral larvae. After the coral polyp larvae are attached to the attachment plate, the reef-building coral larvae attachment device is reclaimed. When reclaiming, the attachment plate is carefully removed from the frame and placed in a container with seawater to ensure the survival of the reef-building coral larvae. The attachment board can be directly placed in the degraded area of the coral reef. In order to improve the survival rate of the reef-building stony coral larvae, the attachment board can also be temporarily placed in the sea where the stony coral grows well for a period of time before being placed in the degraded area of the coral reef.

The inventor implemented the present invention by the above-mentioned method at the end of April, 2007 in the Sanya Luhuitou coral reef sea area, Hainan Province, China, and reclaimed the reef-building coral larvae attachment device for microscopic inspection at the end of May, and found that the attachment plate had a large number of coral larvae attached. The results are as follows:

After moving the attachment plate with a large number of coral larvae attached to the coral reef degraded area, the ecosystem of the coral is restored, which proves that the invention is successful.

Claims (4)

1. method of recovering coral reef ecologic system is characterized in that may further comprise the steps:

(1) places device for adhering juvenile of hermatypic coral thereof in the coral reef marine site, this attaching device has a supporting network that is fixed on the support frame, the lamina affixad of the polylith coral polyp young is installed on supporting network, described lamina affixad is with potter's clay or the ceramic material attaching substratum as the coral polyp young, the support frame of attaching device is placed in the sea bed in coral reef marine site, make lamina affixad on the supporting network in face of current direction, the time of laying is to make preceding about 10 days that the reef coral is ovulated, and allows the coral polyp young attached on the lamina affixad;

(2) the coral polyp young attached to lamina affixad on after, reclaim device for adhering juvenile of hermatypic coral thereof, carefully lamina affixad is unloaded from support frame, be put in the container that seawater is housed, lamina affixad is moved be put into the coral reef zone of degenerating then.

2. the method for the described recovery coral reef ecologic system of claim 1, it is characterized in that in step (2), the lamina affixad that will be attached with the coral polyp young earlier temporarily is placed to the well-grown marine site of cave coral after adaptation a period of time, moves and is put into coral reef degeneration zone.

3. device for adhering juvenile of hermatypic coral thereof, it is characterized in that by supporting network and support frame thereof, and the dismountable lamina affixad of polylith that is installed on the supporting network constitutes, described support frame has a underframe or a base and is fixed on side frame on this underframe or the base, this side frame becomes 15 °～75 ° angles with described underframe or base, described supporting network is fixed on this side frame, and described lamina affixad is with potter's clay or the ceramic material attaching substratum as the coral polyp young.

4. device for adhering juvenile of hermatypic coral thereof according to claim 3 is characterized in that described support frame constitutes roof shape framework by two inclined plane side frames that form angle, and an inclined plane side frame therein installs and fixes supporting network.