Investigation method for quantitative research of conservation range of rocky reef habitat
A reef and habitat technology, applied in the field of reef habitat resource evaluation, to achieve the effects of high fishing efficiency, comprehensive and objective survey results, and high accuracy
Inactive Publication Date: 2013-12-18
SHANGHAI OCEAN UNIV
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However, there are currently no suitable survey methods to evaluate reef habitat organisms.
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[0030] Below in conjunction with accompanying drawing, the present invention is described in detail, as figure 1 Shown, the present invention a kind of investigation method of quantitative research rock habitat conservation scope, described quantitative research rock habitat conservation scope refers to the offshore distance of rock habitat conservation scope, concrete steps are as follows:
[0031] 1) Carry out sediment surveys around the investigated rocky reef area, and set up different investigation sections 1 according to different sediments. Specifically, it is necessary to find out the major types of sediments within 200m offshore;
[0032] 2) Based on the survey results of (1), the cross-section is set perpendicular to the shoreline 4, and the type of lithofacies sediments with a relatively large proportion is set as rock and reef habitat investigation area 2, and the rest of the bottom is set as control area 3, such as sediment , gravel, hard mud, silt, algae field an...
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The invention relates to an investigation method for the quantitative research of a conservation range of a rocky reef habitat and belongs to the technical field of the assessment of rocky reef habitat resources, and the investigation method is mainly used for determining the conservation range, which is a distance away from a shore, of the rocky reef habitat and improving the investigation accuracy of the rocky reef habitat resources. The investigation method comprises the following operation steps: carrying out bottom material investigation on a selected rocky reef habitat region, and determining the types of bottom materials nearby the rocky reef habitat; dividing investigation areas according to the types of the bottom materials, and determining an investigating cross section; and arranging 5 sites, which are vertical to a shoreline and are outward from the shore, on the determined cross section, and placing a trammel net and a crab pot at each site for investigation. The investigation method provided by the invention has the advantages that the conservation range of the rocky reef habitat can be quantitatively researched, and the conservation condition of the rocky reef habitat resources can be accurately assessed.
Description
technical field [0001] The invention relates to an investigation method for quantitatively researching the maintenance range of rocky habitats, which is used for determining the maintenance range of the off-shore distance of rocky habitats, and belongs to the technical field of rocky habitat resource evaluation. Background technique [0002] Habitat, also known as habitat, refers to the environment of the living area of an individual, population or community of organisms, including the necessary living conditions and other ecological factors that affect organisms. Habitat is formed by a combination of biotic and abiotic factors, and when describing the habitat of a biological community, only the abiotic environment is usually included. [0003] The island and reef waters refer to the waters where islands are relatively densely distributed. my country's island and reef sea areas are mainly distributed in the eastern and southern coastal waters of China. The representative s...
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IPC IPC(8): G01V9/00
Inventor 赵静章守宇周曦杰
Owner SHANGHAI OCEAN UNIV