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In order to study the relationship between the open South China Sea Sthenoteuthis oualaniensis fishing ground and the marine environmental factors, this article is based on the data of fishing net fishing boat production and remote sensing of marine environment from 2013 to 2018 in Beihai, Guangxi Zhuang Autonomous Redion. The relationship between the spatiotemporal distribution of the fishing ground of Sthenoteuthis oualaniensis and sea surface temperature (SST), sea surface height (SSH) and sea surface chlorophyll a (Chl a) concentration were studied. The results showed that in the sea areas of 5°−20°N and 108°−118°E, the three environmental factors of SST, SSH and Chl a concentration had a great influence on the spatial and temporal distribution of the fishing ground of Sthenoteuthis oualaniensis. The suitable values of SST, SSH and Chl a concentration within the fishing Sthenoteuthis oualaniensis ground of oualaniensis were: 25−31℃, 46−80 cm, 0.05−0.27 mg/m3, and the center of gravity of the fishing ground shifts from south to north. In addition, the K-S test was performed on the relationship between CPUE values and marine environmental factors from January to December 2013−2018, and the results showed that there was no significant difference between the CPUE values and marine environmental factors.Therefore, the three environmental indicators SST, SSH and Chl a concentration can effectively characterize the resource density of the Sthenoteuthis oualaniensis and the distribution of the central fishing ground.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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