Device for underwater observation and resource assessment of coral reef fishes and observation method

An underwater observation and coral reef technology, applied in fish farming, complex mathematical operations, climate change adaptation, etc., can solve the problems of complex installation process, high cost, lack of practicability, etc., and achieve low device cost, convenient operation, Strong economical and practical effect

Active Publication Date: 2019-08-06
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of restoring fish populations, observing fish ecological activities and evaluating fish resources is an indispensable step. However, the cost of devices gener

Method used

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  • Device for underwater observation and resource assessment of coral reef fishes and observation method
  • Device for underwater observation and resource assessment of coral reef fishes and observation method
  • Device for underwater observation and resource assessment of coral reef fishes and observation method

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Embodiment Construction

[0028] Such as Figure 1-5 As shown in , an embodiment of the present invention provides a device for underwater observation and resource assessment of coral reef fish, which includes a combined bracket 1 , a plurality of measuring rulers 2 , a mobile frame 3 and a camera 4 . The combined support 1 comprises a pair of straight bars and a cross bar 12, the two straight bars are parallel to each other, and the two ends of the cross bars 12 are connected to one end of one of the straight bars, and the extending direction of the cross bar 12 is in line with the The extending directions of the straight rods form an angle of 90 degrees. The measuring ruler 2 is installed on the straight rod. The moving frame 3 is installed between the straight rods. The camera 4 is fixed in the moving frame 3 , and the lens of the camera 4 faces the measuring ruler 2 . The straight rod is composed of multiple connecting rods 11, and two adjacent connecting rods 11 are respectively provided with a...

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Abstract

The invention relates to a device for underwater observation and resource assessment of coral reef fishes. The device includes a combined bracket, several measuring rulers, a moving frame and a camera. The combined bracket comprises a cross rod and a pair of mutually parallel straight rods, and the cross rod is connected between the two straight rods, the measuring rulers are installed on the straight rods, the moving frame is installed between the straight rods and can move back and forth in the extending directions of the straight rods, the camera is fixed in the moving frame, a lens of thecamera faces the measuring rulers, and the whole device is very economical and has high practicability. The invention further provides an observation method of the device for the underwater observation and resource assessment of the coral reef fishes, and the method includes the following steps that three observation points are set, the fishes are observed at each observation point in a period oftime and the fish density is calculated, operation is convenient and observation data is accurate.

Description

technical field [0001] The invention relates to the field of underwater resource evaluation, in particular to a device and an observation method for underwater observation and resource evaluation of coral reef fish. Background technique [0002] Coral reefs have built a complex ecosystem with great biodiversity, and the biodiversity of coral reefs can be compared with that of terrestrial tropical rainforests. As an ecosystem, coral reefs have important ecological functions. In recent years, due to the increasing impact of climate change and human activities, the ecological diversity of coral reefs has shrunk. The protection of coral reef ecosystems and resource restoration have become an urgent task for many countries. Relevant countries have attached great importance to and continuously adopted protection measures. The sustainable use of coral reef biodiversity and ecological service functions is based on the restoration of its species resources. The restoration of coral r...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K29/00G06F17/18
CPCA01K29/00A01K61/10G06F17/18Y02A40/81
Inventor 袁华荣陈丕茂黎小国佟飞
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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