Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea
The spatiotemporal distribution of fishing grounds in the Beibu Gulf and its relationship with marine environment were analyzed using the survey data of light falling-net vessels and satellite remote sensing data including sea surface temperature (SST), chlorophyll a concentration (Chl <i>a<...
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| Format: | Article |
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MDPI AG
2020-11-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/8/12/957 |
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| author | Yanfeng Wang Lijun Yao Pimao Chen Jing Yu Qia’er Wu |
| author_facet | Yanfeng Wang Lijun Yao Pimao Chen Jing Yu Qia’er Wu |
| author_sort | Yanfeng Wang |
| collection | DOAJ |
| description | The spatiotemporal distribution of fishing grounds in the Beibu Gulf and its relationship with marine environment were analyzed using the survey data of light falling-net vessels and satellite remote sensing data including sea surface temperature (SST), chlorophyll a concentration (Chl <i>a</i>) and net primary production (NPP), based on the generalized additive model (GAM) and the center of gravity (COG) of fishing grounds. The results showed that the total deviance explained by GAM for the catch per unit effort (CPUE) in the Beibu Gulf was 42.9%, in which SST was the most important influencing factor on CPUE, with a relative contribution of 40%; followed by latitude, Chl <i>a</i>, month and NPP, with relative contributions of 25.2%, 19%, 10.4% and 5.4%, respectively. Fishing grounds in the Beibu Gulf were mainly distributed in waters with SST of 27–29 °C, Chl <i>a</i> of 0.5–1.5 mg m<sup>−3</sup> and NPP of 500–700 mg m<sup>−2</sup> d<sup>−1</sup>. Light falling-net fishing grounds were concentrated in waters with latitude of 18.5° N and 20–20.25° N. There was a significant correlation between the mean latitude of optimum NPP and the latitudinal COG of CPUE, with the R<sup>2</sup> being 0.91. These were connected with environmental factors such as the northeast monsoon that began in autumn and winter, warm pools near 19° N and local upwelling in the Beibu Gulf. |
| first_indexed | 2024-03-10T14:36:37Z |
| format | Article |
| id | doaj.art-18a340407ebc40b28f79f70869983b77 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T14:36:37Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-18a340407ebc40b28f79f70869983b772023-11-20T22:04:55ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-11-0181295710.3390/jmse8120957Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China SeaYanfeng Wang0Lijun Yao1Pimao Chen2Jing Yu3Qia’er Wu4Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, China Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environment, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, ChinaDepartment of Optoelectronic Engineering, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, China Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environment, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, ChinaGuangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, China Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environment, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, ChinaGuangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, China Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environment, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, ChinaThe spatiotemporal distribution of fishing grounds in the Beibu Gulf and its relationship with marine environment were analyzed using the survey data of light falling-net vessels and satellite remote sensing data including sea surface temperature (SST), chlorophyll a concentration (Chl <i>a</i>) and net primary production (NPP), based on the generalized additive model (GAM) and the center of gravity (COG) of fishing grounds. The results showed that the total deviance explained by GAM for the catch per unit effort (CPUE) in the Beibu Gulf was 42.9%, in which SST was the most important influencing factor on CPUE, with a relative contribution of 40%; followed by latitude, Chl <i>a</i>, month and NPP, with relative contributions of 25.2%, 19%, 10.4% and 5.4%, respectively. Fishing grounds in the Beibu Gulf were mainly distributed in waters with SST of 27–29 °C, Chl <i>a</i> of 0.5–1.5 mg m<sup>−3</sup> and NPP of 500–700 mg m<sup>−2</sup> d<sup>−1</sup>. Light falling-net fishing grounds were concentrated in waters with latitude of 18.5° N and 20–20.25° N. There was a significant correlation between the mean latitude of optimum NPP and the latitudinal COG of CPUE, with the R<sup>2</sup> being 0.91. These were connected with environmental factors such as the northeast monsoon that began in autumn and winter, warm pools near 19° N and local upwelling in the Beibu Gulf.https://www.mdpi.com/2077-1312/8/12/957fishing groundenvironmental factorsgeneralized additive modelremote sensingBeibu Gulf |
| spellingShingle | Yanfeng Wang Lijun Yao Pimao Chen Jing Yu Qia’er Wu Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea Journal of Marine Science and Engineering fishing ground environmental factors generalized additive model remote sensing Beibu Gulf |
| title | Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea |
| title_full | Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea |
| title_fullStr | Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea |
| title_full_unstemmed | Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea |
| title_short | Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea |
| title_sort | environmental influence on the spatiotemporal variability of fishing grounds in the beibu gulf south china sea |
| topic | fishing ground environmental factors generalized additive model remote sensing Beibu Gulf |
| url | https://www.mdpi.com/2077-1312/8/12/957 |
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