Variation in the distribution of wintering anchovy Engraulis japonicus and its relationship with water temperature in the central and southern Yellow Sea
文献类型: 外文期刊
第一作者: Niu Mingxiang
作者: Niu Mingxiang;Wang Jun;Wang Jun;Niu Mingxiang;Wang Jun;Niu Mingxiang;Wang Jun
作者机构:
关键词: spatial distribution;water temperature;latitudinal shift;preferred isotherm;generalized additive models (GAMs);Engraulis japonicus
期刊名称:CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY ( 影响因子:1.068; 五年影响因子:0.983 )
ISSN: 0254-4059
年卷期: 2017 年 35 卷 5 期
页码:
收录情况: SCI
摘要: In the present study, we investigated a shift in the spatial distribution of wintering anchovy (Engraulis japonicus) and its relationship with water temperature, using data collected by bottom trawl surveys and remote sensing in the central and southern Yellow Sea, during 2000-2015. Our results indicate that the latitudinal distribution of wintering anchovy varied between years, but there was no consistent pattern in the direction of change (north or south). Wintering anchovy did not move northward with increasing water temperature. However, the latitudinal distribution of wintering anchovy correlated well with 10A degrees C and 11A degrees C isotherms. The results of both a one-step and a two-step generalized additive model indicated that water temperature was associated with both presence and biomass of wintering anchovy. This paper is the first to systematically examine the relationship between anchovy distribution and water temperature using a variety of techniques. All the findings confirm the impact of water temperature on wintering anchovy distribution, which has important implications for the continued management of the anchovy resource and the enhancement of marine fishery resources in the Yellow Sea, especially as the climate changes. However water temperature only partly explains the species distribution of anchovy, and stock characteristics also affect fishery distribution. Therefore, other factors should be considered in future research.
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