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| Spatial Distribution of Fishing Ground of Jumbo Flying Squid Dosidicus gigas in the Equator in Eastern Pacific Ocean |
| FANG Xingnan1, YU Wei1,2,3,4, CHEN Xinjun1,2,3,4 |
1. College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;
2. National Engineering Research Center for Oceanic Fisheries, Shanghai Ocean University, Shanghai 201306, China;
3. Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China;
4. Key Laboratory of Oceanic Fisheries Exploration, Ministry of Agriculture and Rural Affairs, Scientific Observing and Experimental Station of Oceanic Fishery Resources, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China |
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Abstract The spatial and temporal changes in the gravity centers of the fishing ground of jumbo flying squid Dosidicus gigas were investigated according to the fishing data of jumbo flying squid and the sea surface temperature (SST) and chlorophyll a concentration (Chl-a) in the equatorial waters in the Eastern Pacific Ocean in different months from January to July in 2017 by the longitudinal and latitudinal gravity centers of the fishing ground method. The effects of SST and Chl-a on catch per unit effort (CPUE) were evaluated by generalized additive model (GAM), and the suitable range of SST and Chl-a and monthly changes were determined for jumbo flying squid based on the relationship between fishing effort and SST as well as Chl-a concentration. The results showed that the gravity centers of the fishing ground gradually were shifted southeastward from January to July. GAM results indicated that there was significant effects of the two environmental factors on CPUE (P<0.05). The suitable SST ranges were initially increased and then decreased with the month, with the maximal suitable SST ranging from 26.8 to 27.2 ℃ in April. The optimal Chl-a concentration range was basically the same in the first five months, ranging from 0.14 to 0.16 mg/m3, 0.16—0.18 mg/m3 in June and 0.18—0.20 mg/m3 in July. The fishing ground of jumbo flying squid in the equator was a new fishing ground which was exploited by Chinese squid fisheries in recent years. These findings led to understand spatial distribution of jumbo flying squid in this region, which provided scientific basis to look for fishing grounds with high squid abundance.
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Received: 28 April 2020
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[1] 王尧耕,陈新军.世界大洋性经济柔鱼类资源及其渔业[M].北京:海洋出版社,2005:240-264.
[2] NIGMATULLIN C M, NESIS K N, ARKHIPKIN A I. A review of the biology of the jumbo squid Dosidicus gigas (Cephalopoda:Ommastrephidae)[J].Fisheries Research,2001,54(1):9-19.
[3] 钱卫国,陈新军,郑波,等.智利外海茎柔鱼资源密度分布与渔场环境的关系[J].上海水产大学学报,2008,17(1):98-103.
[4] 陈新军,赵小虎.智利外海茎柔鱼产量分布及其与表温的关系[J].海洋渔业,2005,27(2):173-176.
[5] 陈新军,陆化杰,刘必林,等.大洋性柔鱼类资源开发现状及可持续利用的科学问题[J].上海海洋大学学报,2012,21(5):831-840.
[6] CHEN X J, LU H J, LIU B L, et al. Age, growth and population structure of jumbo flying squid, Dosidicus gigas, based on statolith microstructure off the exclusive economic zone of Chilean waters[J].Journal of the Marine Biological Association of the United Kingdom,2011,91(1):229-235.
[7] TAIPE A, YAMASHIRO C, MARIATEGUI L, et al. Distribution and concentrations of jumbo flying squid (Dosidicus gigas) off the Peruvian coast between 1991 and 1999[J].Fisheries Research,2001,54(1):21-32.
[8] 余为,陈新军.东南太平洋秘鲁海域光合有效辐射对茎柔鱼资源丰度和空间分布的影响研究[J].海洋学报,2017,39(11):97-105.
[9] YU W, YI Q, CHEN X J, et al. Climate-driven latitudinal shift in fishing ground of jumbo flying squid (Dosidicus gigas) in the Southeast Pacific Ocean off peru[J].International Journal of Remote Sensing,2017,38(12):3531-3550.
[10] MARKAIDA U, SOSA-NISHIZAKI O. Reproductive biology of jumbo squid Dosidicus gigas in the Gulf of California,1995—1997[J].Fisheries Research,2001,54(1):63-82.
[11] TAFUR R, RABÍ M. Reproduction of the jumbo flying squid, Dosidicus gigas (Orbigny, 1835) (Cephalopoda:Ommastrephidae) off peruvian coasts[J].Scientia Marina,1997,61(Suppl. 2):33-37.
[12] 徐冰,陈新军,钱卫国,等.秘鲁外海茎柔鱼渔场时空分布分析[J].中国海洋大学学报(自然科学版),2011,41(11):43-47.
[13] 胡贯宇,方舟,陈新军.东太平洋茎柔鱼生活史研究进展[J].水产学报,2018,42(8):1315-1328.
[14] 陈新军,李建华,刘必林,等.东太平洋不同海区茎柔鱼渔业生物学的初步研究[J].上海海洋大学学报,2012,21(2):280-287.
[15] 陈新军,李建华,易倩,等.东太平洋赤道附近海域茎柔鱼(Dosidicus gigas)渔业生物学的初步研究[J].海洋与湖沼,2012,43(6):1233-1238.
[16] 万荣,张同征,李增光,等.黄海近岸海域短吻红舌鳎夏季产卵场的空间分布及其年际变化[J].应用生态学报,2020,31(3):1023-1032.
[17] 武胜男,陈新军.基于GLM和GAM的日本鲭太平洋群体补充量与产卵场影响因子关系分析[J].水产学报,2020,44(1):61-70.
[18] 陈新军,赵小虎.秘鲁外海茎柔鱼产量分布及其与表温关系的初步研究[J].上海水产大学学报,2006,15(1):65-70.
[19] 孙珊,李显森,戴芳群,等.秘鲁外海夏季渔业资源与水温分布特征[J].海洋水产研究,2008,29(2):108-117.
[20] 胡振明,陈新军,周应祺.东南太平洋茎柔鱼渔业生物学研究进展[J].广东海洋大学学报,2009,29(3):98-102.
[21] SMITH N, KESSLER W S, CRAVATTE S, et al. Tropical Pacific observing system[J].Frontiers in Marine Science,2019,6:31.
[22] 胡振明,陈新军,周应祺.秘鲁外海茎柔鱼渔场分布和水温结构的关系[J].水产学报,2009,33(5):770-777.
[23] 胡振明,陈新军.秘鲁外海茎柔鱼渔场分布与表温及表温距平值关系的初步探讨[J].海洋湖沼通报,2008(4):56-62.
[24] 章寒,郑基,虞聪达,等.东太平洋赤道海域茎柔鱼主要生物学特性比较研究[J].中国水产科学,2019,26(4):745-755.
[25] 陈新军,钱卫国,刘必林,等.主要经济大洋性鱿鱼资源渔场生产性调查与渔业概况[J].上海海洋大学学报,2019,28(3):344-356.
[26] 贡艺,李云凯,陈玲,等.东太平洋不同海区茎柔鱼肌肉脂肪酸组成分析与比较[J].渔业科学进展,2018,39(6):147-154.
[27] 胡振明,陈新军,周应祺,等.利用栖息地适宜指数分析秘鲁外海茎柔鱼渔场分布[J].海洋学报(中文版),2010,32(5):67-75.
[28] 方学燕,陈新军,丁琪.基于栖息地指数的智利外海茎柔鱼渔场预报模型优化[J].广东海洋大学学报,2014,34(4):67-73.
[29] 陆化杰,王从军,陈新军.东太平洋赤道公海茎柔鱼生物学特性[J].广东海洋大学学报,2014,34(4):1-8.
[30] 刘连为,陈新军,许强华,等.基于微卫星标记的茎柔鱼赤道海域群体与秘鲁外海群体遗传变异分析[J].中国海洋大学学报(自然科学版),2015,45(7):53-57. |
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