PDF
Full
Outline
It is essential for ecosystem-based fisheries management to investigate the spatiotemporal distribution characteristics and environmental driving mechanisms of the key zooplankton species (Acetes chinensis) during its total allowable catch project period. We applied DBSCAN (density-based spatial clustering of application with noise) algorithm to process summer 2021 Beidou VMS (vessel monitoring system) data to extract information of the fishing locations associated with A. chinensis catches. We then combined these locations with remotely sensed marine environmental data and investigated the distribution patterns and key environmental drivers of A. chinensis habitats in the Haizhou Bay during summer in MaxEnt model using geographic detector method. Results indicate that suitable habitats for A. chinensis were concentrated in mainly three regions: 120°01′~120°17′E and 34°43′~34°47′N; 119°48′~119°58′E and 34°34′~34°42′N; and 119°58′~120°12′E and 34°25′~34°33′N. Although A. chinensis is a small, planktonic shrimp, its spatiotemporal distribution was not solely determined by surface residual currents, and the dominant factors influencing its distribution varied in different fishing periods. In the entire fishing season, the water depth, phytoplankton abundance, sea surface temperature, and sea surface salinity emerged as critical drivers of the habitat distribution. The optimal conditions in Haizhou Bay were determined as: water depth of 3.5~11.0 m, phytoplankton abundance of 9.5~17.0 mmol/m3 or 27.5~30.0 mmol/m3, sea surface temperature of 24.2~25.5 ℃, and sea surface salinity of 21.0‰~23.6‰. During the peak catch period, surface residual currents became an additional important factor on the distribution of the shrimp habitats. Future research shall focus on developing a comprehensive observation indicator system for this key species and conducting further assessments to ensure the sustainable production of A. chinensis resources.
PDF
150
69
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
