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¡¡¡¡Abstract
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¡¡¡¡Marine Ranching refers to an artificial fishing ground formed based on the principles of marine ecology and modern marine engineering technology, making full use of naturalproductivity and scientifically cultivating and managing fishery resources in specific sea areas.
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¡¡¡¡Fuhan National Marine Ranching Demonstration Area in Pipakou Sea Area, Shandong Province, is located outside the Pipakou area in the eastern part of Haiyang City, ShandongProvince. The area of the sea area is 848 hm ? , and the type is a sport fishing Marine Ranching.The main types of artificial reefs are stone, concrete components, steel frames, oyster reefs, and old fishing boats. Empty side, 150,000 empty side of rocky reef, breeding 20 million fisheryresources such as sea cucumber, queen turtle, moray eel, and releasing 5 million reef fish (black sea bream, Xu's flat bream, grouper sea bream, etc.) 2 hectares of seaweed field.
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¡¡¡¡This paper has set up multiple sites to conduct a large-scale investigation and research on the Fuhan Marine Ranching, and analyzed the hydrophysical environmental parameters, waterquality chemical environmental parameters, and biological environment (including chlorophyll a, phytoplankton, zooplankton, and fishery resources). Haiyang Fuhan Marine Ranching Resourcesand Environmental Characteristic Data. The specific results are as follows:
¡¡¡¡
¡¡¡¡1. It was found that the water depth of the survey waters was between 6.59-13.52m and the average water depth was 10.75m; the temperature fluctuated significantly between seasons, thelowest in December and the highest in July; the water salinity in July was the lowest in summer,and the salinity changes in other months The amplitude is not large, between 32.27-32.54. Thep H of the waters of this pasture was relatively small; the dissolved oxygen was the highest in December and the lowest in July; the turbidity in summer was highest in July and lowest in May.
¡¡¡¡
¡¡¡¡There was no significant difference in conductivity data (p> 0.05) between months.
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¡¡¡¡2. The overall water quality of the surveyed waters has remained at the national level 2 or above. The content of chlorophyll a in the reef-casting area was significantly lower than that inthe un-stocked area. The concentration of chlorophyll a in September was significantly higher than that in the rest of the month. The reason may be that the melting of the moss in Augustbrought about changes in the water environment of the water body in the water area, and The level of quantity has increased significantly.
¡¡¡¡
¡¡¡¡3. The four-stage survey showed that the number of fish species and catches in the reef area and surrounding areas were greater than those in the control offshore area, but the differenceswere not significant (p> 0.05). The richness index was also high, and the species diversity index was also high. In the control offshore area, but the difference was not significant (p> 0.05), a total of 28 species were caught in this fishery resource survey, including 20 species of fish, 2species of shrimp, 4 species of crab, 1 species of snail, head There are two species of foot species,and the number of fishery resources in the surveyed waters shows obvious seasonal changes,with the lowest in July and the highest in December. Judging from the composition of the catch weight groups, the proportion of crab catches was the largest in July and September, and the proportion of fish catches was the largest in December and May. The fish are mainly white gulls,goblet goby and Xu's flathead. The dominant species of fisheries resources in this water area aremainly Tricuspid wart crab, Japanese cockroach, Orchid shrimp, Vein red snail, Baigu fish, Xu's flat pupa, etc.
¡¡¡¡
¡¡¡¡Keywords:    Marine Ranching£»hydrophysical environment£»water quality chemicalenvironment£»biological environment¡£
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