秘鲁外海茎柔鱼栖息地适宜性年代际变动

温健; 陆鑫一; 余为; 陈新军; 刘必林

doi:10.3969/j.issn.0253-4193.2020.06.005

秘鲁外海茎柔鱼栖息地适宜性年代际变动

doi: 10.3969/j.issn.0253-4193.2020.06.005

温健^1,,
陆鑫一¹,
余为^{1, 2, 3, 4, ,},
陈新军^{1, 2, 3, 4},
刘必林^{1, 2, 3, 4}

1.
上海海洋大学海洋科学学院，上海 201306
2.
国家远洋渔业工程技术研究中心，上海 201306
3.
大洋渔业资源可持续开发教育部重点实验室，上海 201306
4.
远洋渔业协同创新中心，上海 201306

基金项目: 国家重点研发计划（2019YFD0901405，2019YFD0901404）；国家自然科学基金青年科学基金（41906073）；上海市自然科学基金（19ZR1423000）；上海市高校特聘教授“东方学者”岗位计划项目（0810000243）；上海市“浦江人才”计划项目（18PJ1404100）。

详细信息

作者简介:
温健（1998—），男，山西省汾阳市人，研究方向为渔业海洋学。E-mail：jwen0913@163.com

通讯作者:
余为，博士，讲师，主要从事渔业海洋学研究。E-mail：wyu@shou.edu.cn

中图分类号: P714⁺.5; S917.1
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- 文章访问数: 210
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- 被引次数: 0
出版历程
- 收稿日期: 2019-02-16
- 修回日期: 2019-04-23
- 网络出版日期: 2020-11-18
- 刊出日期: 2020-06-25

Decadal variations in habitat suitability of Dosidicus gigas in the Southeast Pacific Ocean off Peru

Wen Jian^1
,,
Lu Xinyi¹,
Yu Wei^{1, 2, 3, 4
, ,},
Chen Xinjun^{1, 2, 3, 4},
Liu Bilin^{1, 2, 3, 4}

1.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
2.
National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China
3.
Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China
4.
Collaborative Innovation Center for Distant-water Fisheries, Shanghai 201306, China

摘要

摘要: 茎柔鱼广泛分布于东南太平洋海域，是我国重要的远洋捕捞对象之一，其种群易受气候和栖息地环境的影响。利用海表面温度(SST)和海表面高度距平(SSHA)两个关键环境因子，计算1950−2015年1−12月秘鲁外海茎柔鱼栖息地适宜性指数(HSI)，对比分析太平洋年代际涛动(PDO)位于冷暖位相下茎柔鱼渔场环境以及栖息地质量的变动。结果显示，1950−2015年PDO呈现冷、暖、冷3个位相变化，其中PDO冷位相内的SST距平(SSTA)和SSHA明显低于PDO暖位相。交相关分析结果表明，PDO指数与SSTA和SSHA均呈显著正相关，而HSI与PDO指数、SSTA和SSHA均呈显著负相关。PDO位于冷位相时，茎柔鱼渔场内水温变冷，海面高度下降，适宜的SST和SSHA范围增加，因此茎柔鱼有利的栖息地面积增大；而PDO位于暖位相时，水温增暖，海面高度上升，适宜的SST和SSHA范围缩减，导致茎柔鱼适宜的栖息地面积缩小。研究认为，太平洋年代际涛动调控了茎柔鱼渔场内的环境变化，进而对茎柔鱼栖息地质量及适宜栖息地范围产生显著影响。
- 茎柔鱼 /
- 栖息地适宜性 /
- 太平洋年代际涛动 /
- 时空分布 /
- 秘鲁
Abstract: Dosidicus gigas is an important fishing target by Chinese squid-jigging fisheries, which is widely distributed in the Southeast Pacific Ocean. Its population is largely affected by climatic and environmental conditions on the fishing ground. In this study, we calculated the habitat suitability index (HSI) on the fishing ground of D. gigas in the Southeast Paciﬁc Ocean off Peru from January to December during 1950 to 2015 based on sea surface temperature (SST) and the anomalies of sea surface height (SSHA), and variability in the environmental variables and habitat quality were further analyzed under the warm and cold phases of the Pacific Decadal Oscillation (PDO). The results suggested that PDO showed cold, warm and cold phases from 1950 to 2015. The anomalies of SST (SSTA) and SSHA during the cold PDO were significantly lower than those during the warm PDO. The cross correlation analysis suggested that both the SSTA and the SSHA were significantly positively correlated with the PDO index. However, and the HSI values on the ﬁshing ground of D. gigas were significantly negatively correlated with the PDO index, SSTA and SSHA. During the cold PDO, the water temperature became cold, and the SSH decreased, these changes led to enlarged areas of suitable SST and SSHA for D. gigas, therefore, the favorable habitats largely increased. However, during the warm PDO, the water temperature became warm, the SSH elevated, whereas the ranges of suitable SST and SSHA contracted, all these changes resulted in the decrease of the suitable habitat of D. gigas. Our findings suggested that PDO regulated the environmental conditions on the ﬁshing ground of D. gigas off Peru, and further significantly affected the habitat quality and suitable ranges of the habitat.
- Dosidicus gigas /
- habitat suitability /
- Pacific Decadal Oscillation /
- spatio-temporal distribution /
- Peru

HTML全文

图 1 1950−2015年PDO指数以及东南太平洋海域秘鲁茎柔鱼渔场SSTA和SSHA的年际变化

Fig. 1 Interannual variability in the PDO index, SSTA, SSHA on the ﬁshing ground of D. gigas in the Southeast Paciﬁc Ocean off Peru during 1950–2015

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图 2 PDO指数与SSTA、SSHA的交相关系数

Fig. 2 Cross correlation coefficients between the PDO index and SSTA, and between PDO index and SSHA

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图 3 1950−2015年PDO位于冷暖位相时SSTA、SSHA的空间分布

Fig. 3 The spatial distributions of SSTA and SSHA during the cold PDO and warm PDO over 1950−2015

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图 4 1950−2015年PDO暖期和冷期适宜的SST面积比例和适宜的SSHA面积比例的年际变化

Fig. 4 Interannual variability in suitable SST area proportion and SSHA area proportion during the cold and warm PDO over 1950–2015

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图 5 1950−2015年PDO暖期和冷期HSI的年际变化和空间分布

Fig. 5 Interannual variability in the HSI on the cold PDO and warm PDO during 1950–2015. The spatial distributions of HSI on the cold PDO and warm PDO

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图 6 HSI与PDO、SSTA和SSHA的交相关系数

Fig. 6 Cross correlation coefficients between the HSI and PDO, HSI and SSTA, HSI and SSHA

下载: 全尺寸图片幻灯片

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