Variation of the coastal upwelling off South Java and their impact on local fishery resources
文献类型：CNKI期刊论文
| 作者 | Chunlong WEN; Zhenyan WANG; Jing WANG ; Hongchun LI; Xingyu SHI; Wei GAO; Haijun HUANG
|
| 发表日期 | 2023-07-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | South Java El Ni?o/La Ni?a-Southern Oscillation (ENSO) Indian Ocean Dipole (IOD) fishery resources upwelling |
| 英文摘要 | There is a vast upwelling area induced by the southeast monsoon in the waters off South Java, making the region an important fishing ground. Climate events can affect the variation of upwelling,but oceanographers have different understandings on the extent to which climate events control upwelling in this area, which leads to a lack of basis for studies on the evaluation and mechanisms of the variability of fishery resources in the region. The correlation between environmental parameters, including surface temperature(SST), chlorophyll-a(Chl-a) concentration, and climate event indices in South Java from 2003 to 2020 was analyzed. Results show that the Indian Ocean Dipole(IOD) has a greater influence on the interannual variability of upwelling intensity than ENSO. During the IOD, variations in equatorial latitudinal winds excite different types of Kelvin waves that anomalously deepen or shallow the thermocline, which is the main cause of anomalous variations in upwelling, independent of variations in the local wind field. A correlation between the interannual variability in upwelling and the annual catches was revealed, showing that climatic events indirectly affect fishery resources through upwelling effects.During positive IOD/El Ni?o periods, strong upwelling delivers more nutrients to the surface layer, which favors fish growth and reproduction, resulting in higher annual catches. A negative IOD/La Ni?a, on the other hand, leads to weaker upwelling and fewer nutrients into the surface waters. Fish tend to move in deeper waters, making traditional fishing methods less efficient and consequently lower annual catches. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Nos. XDB42010203, XDA19060401) ; the National Natural Science Foundation of China (Nos. 42176090, 41776011) |
| 卷 | v.41期:04页:171-186 |
| 语种 | 英文; |
| 分类号 | P731.2;S932 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187066]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CASKeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.LaboratoryforMarineMineralResources,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.CenterforOceanMega-Science,ChineseAcademyofSciences 5.CASKeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 6.QingdaoGeologicalExplorationInstituteofChinaMetallurgicalGeologyBureau |
| 推荐引用方式 GB/T 7714 | Chunlong WEN,Zhenyan WANG,Jing WANG,et al. Variation of the coastal upwelling off South Java and their impact on local fishery resources. 2023. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。