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被引:2
作者
Lee, Seonju [1 ]
Choi, Jong-Kuk [1 ]
Park, Myung-Sook [1 ]
Kim, Sang Woo [2 ]
机构
[1] Korea Inst Ocean Sci & Technol, Korea Ocean Satellite Ctr, Busan, South Korea
[2] Environm Monitoring Inst, Land & Ocean Environm ENG, Suwon, South Korea
关键词
Todarodes pacificus; Habitat suitability index; East Asian marginal seas; Satellite data; Korean exclusive economic zone; JAPANESE COMMON SQUID; TODARODES-PACIFICUS CEPHALOPODA; HABITAT SUITABILITY; SPAWNING AREAS; CLIMATE; SEA; MODEL; OMMASTREPHIDAE; MIGRATION; IMPACTS;
D O I
10.7780/kjrs.2023.39.6.2.10
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
Under global warming, the steadily increasing sea surface temperature (SST) severely impacts marine ecosystems, such as the productivity decrease and change in marine species distribution. Recently, the catch of Todarodes Pacificus, one of South Korea's primary marine resources, has dramatically decreased. In this study, we analyze the marine environment that affects the formation of fishing grounds of Todarodes Pacificus and develop seasonal habitat suitability index (HSI) models based on various satellite data including Geostationary Ocean Color Imager (GOCI) data to continuously manage fisheries resources over Korean exclusive economic zone. About 83% of catches are found within the range of SST of 14.11-26.16(degrees)C, sea level height of 0.56-0.82 m, chlorophyll-a concentration of 0.31-1.52 mg m(-3), and primary production of 580.96-1574.13 mg C m(-2) day(-1). The seasonal HSI models are developed using the Arithmetic Mean Model, which showed the best performance. Comparing the developed HSI value with the 2019 catch data, it is confirmed that the HSI model is valid because the fishing grounds are formed in different sea regions by season (East Sea in winter and Yellow Sea in summer) and the high HSI (> 0.6) concurrences to areas with the high catch. In addition, we identified the significant increasing trend in SST over study regions, which is highly related to the formation of fishing grounds of Todarodes Pacificus. We can expect the fishing grounds will be changed by accelerating ocean warming in the future. Continuous HSI monitoring is necessary to manage fisheries' spatial and temporal distribution.
引用
收藏
页码:1635 / 1650
页数:16
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