黄海南部蓝点马鲛耳石微量元素
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摘要
应用激光剥蚀(LA)-ICPMS技术对采集于黄海南部吕泗产卵场的产卵期蓝点马鲛耳石横截面从核心到边缘进行了分析,并结合耳石微结构分析比较各测定元素与钙的比值在不同生活史阶段的变化。结果显示,测定的Li、Na、Mg、Fe、Co、Sr和Ba含量在耳石上均呈非均匀分布,但Ba∶Ca比值从核心到边缘波动较大(2.13～5.05μmol/mol),总体为核心(0～40μm)部分高,核心向外(40～320μm)部分快速下降,其余部分(320～1 440μm)低。Ba∶Ca比值在不同生活史阶段间表现出了显著性差异,孵化阶段明显高于越冬和产卵阶段。相较其他元素,Ba元素更适合作为标志性元素重建蓝点马鲛生境履历。根据Ba∶Ca比值重建了黄海南部蓝点马鲛的生境履历,结果发现它们在胚胎发育和孵化阶段生活在高Ba浓度生境,早期发育阶段游离近岸高Ba浓度生境,随后的生长发育阶段则会长期处于Ba浓度稍低的生境进行越冬和产卵洄游。
Japanese Spanish mackerel(Scomberomorus niphonius) during spawning seasons were collected from Lüsi spawning ground in the southern Yellow Sea, then transverse sections of otoliths were analyzed from its core to the margin by using laser ablation ICPMS. Element∶calcium ratios were integrated with microstructural analysis to produce profiles of different life stages for measured elements. The results revealed that the detected Li,Na, Mg, Fe, Co, Sr and Ba were all heterogeneously distributed on the otolith. However, Ba∶Ca ratio fluctuated sharply with a range of 2.13–5.05 μmol/mol. The Ba concentration was normally high in the otolith cores(0–40 μm), declining rapidly in 40–320 μm areas and being low in the remaining areas(320–1 440 μm). Therefore,Ba∶Ca ratio showed significant difference between life stages: it was significantly higher in hatching stage than in wintering and spawning stages. It indicated that variation in Ba∶Ca ratio was most informative and S. niphonius seemed to prefer high Ba concentrations habitats at the stages of embryonic development and hatching before they soon swam away from this habitat at the stage of post-hatching development. Low Ba concentrations habitats seemed to be preferable for the stage of wintering and spawning. These results provided further evidence for the common migration trajectory.
Japanese Spanish mackerel(Scomberomorus niphonius) during spawning seasons were collected from Lüsi spawning ground in the southern Yellow Sea, then transverse sections of otoliths were analyzed from its core to the margin by using laser ablation ICPMS. Element∶calcium ratios were integrated with microstructural analysis to produce profiles of different life stages for measured elements. The results revealed that the detected Li,Na, Mg, Fe, Co, Sr and Ba were all heterogeneously distributed on the otolith. However, Ba∶Ca ratio fluctuated sharply with a range of 2.13–5.05 μmol/mol. The Ba concentration was normally high in the otolith cores(0–40 μm), declining rapidly in 40–320 μm areas and being low in the remaining areas(320–1 440 μm). Therefore,Ba∶Ca ratio showed significant difference between life stages: it was significantly higher in hatching stage than in wintering and spawning stages. It indicated that variation in Ba∶Ca ratio was most informative and S. niphonius seemed to prefer high Ba concentrations habitats at the stages of embryonic development and hatching before they soon swam away from this habitat at the stage of post-hatching development. Low Ba concentrations habitats seemed to be preferable for the stage of wintering and spawning. These results provided further evidence for the common migration trajectory.
引文
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[2]Secor D H,Dean J M,Campana S E.Recent developments in fish otolith research[J].Columbia S C:University of South Carolina Press,1995:1-735.
[3]Secor D H.Henderson-Arzapalo A,Piccoli P M.Can otolith microchemistry chart patterns of migration and habitat utilization in anadromous fishes?[J].Journal of Experimental Marine Biology and Ecology,1995b,192:15-33.
[4]刘必林,陈新军,马金,等.头足类耳石的微化学研究进展[J].水产学报,2010,34(2):315-321.Liu B L,Chen X J,Jin M,et al.Review of studies of the microchemical structure of cephalopod statoliths[J].Journal of Fisheries of China,2010,34(2):315-321(in Chinese).
[5]Campana S E.Chemistry and composition of fish otoliths:pathways,mechanisms and applications[J].Marine Ecology Progress Series,1999,188:263-297.
[6]Thresher R E.Elemental composition of otoliths as a stock delineator in fishes[J].Fisheries Research,1999,43:165-204.
[7]Campana S E,Thorrold S R.Otoliths,increments and elements:keys to a comprehensive understanding of fish populations?[J].Canadian Journal of Fisheries and Aquatic Sciences,2001,58:30-38.
[8]Elsdon T S,Wells B K,Campana S E,et al.Otolith chemistry to describe movements and life history parameters of fishes:hypotheses,assumptions,limitations and inferences[J].Oceanography and Marine Biology-Annual Review,2008,46:297-330.
[9]熊瑛,刘洪波,姜涛,等.黄海南部野生银鲳和鮸鱼的耳石元素微化学研究[J].海洋学报,2015,37(2):36-43.Xiong Y,Liu H B,Jiang T,et al.Investigation on otolith microchemistry of wild Pampus argentus and Miichthys miiuy in the southern Yellow Sea[J].2015,37(2):36-43(in Chinese).
[10]Fowler A J,Campana S E,Thorrold S R.Experimental assessment of the effect of temperature and salinity on elemental composition of otoliths using laser ablation ICPMS[J].Canadian Journal of Fisheries and Aquatic Sciences,1995,52:1431-1441.
[11]水柏年,孙希福,韩志强,等.黄海、东海蓝点马鲛群体的形态特征分析[J].水产学报,2009,33(3):445-451.Shui B N,Sun X F,Han Z Q,et al.Morphological variation analysis among populations of Japanese Spanish mackerel Scomberomorus niphonius in the Yellow Sea and East China Sea[J].Journal of Fisheries of China,2009,33(3):445-451(in Chinese).
[12]王英俊,叶振江,杨永桓,等.耳石形态在黄海蓝点马鲛群体鉴别方面的应用[J].中国海洋大学学报(自然科学版),2007,37(s1):155-158.Wang Y J,Ye Z J,Yang Y H,et al.Stock identification of Spanish mackerel,Scomberomorus niphonius in the Yellow Sea using otolith morphology[J].Periodical of Ocean University of China,2007,37(s1):155-158(in Chinese).
[13]Zhang C,Ye Z,Li Z,et al.Population structure of Spanish mackerel Scomberomorus niphonius,in the Bohai Sea,the Yellow Sea and the East China Sea:evidence from random forests based on otolith features[J].Fisheries Science,2016,82(2):251-256.
[14]袁杨洋,叶振江,刘群,等.黄海南部春季蓝点马鲛(Scomberomorus niphonius)渔场海洋学特征与渔期渔场分布[J].海洋与湖沼,2009,40(4):506-510.Yuan Y Y,Ye Z J,Liu Q.Fishery oceanography and spatial-temporal distribution of Scomberomorus Niphonius in spring in southern Yellow Sea[J].Oceanologia et Limnologia Sinica,2009,40(4):506-510(in Chinese).
[15]邱盛尧,叶懋中.黄渤海蓝点马鲛繁殖生物学的研究[J].海洋与湖沼,1996,27(5):463-470.Qiu S Y,Ye B Z.Studies on the reproductive biology of Scomberomorus niphonius in the Yellow Sea and Bohai Sea[J].Oceanologia et Limnologia Sinica,1996,27(5):463-470(in Chinese).
[16]Fowler A J,Hamer P A,Kemp J.Age-related otolith chemistry profiles help resolve demographics and metapopulation structure of a widely-dispersed,coastal fishery species[J].Fisheries Research,2017,189:77-94.
[17]Longmore C,Trueman C N,Neat F,et al.Otolith geochemistry indicates life-long spatial population structuring in a deep-sea fish,Coryphaenoides rupestris[J].Marine Ecology Progress Series,2011,435:209-224.
[18]窦硕增,于鑫,曹亮.基于多测点LA-ICPMS的耳石核区元素指纹分析技术及其在鱼类群体识别中的实证研究[J].海洋与湖沼,2011,42(6):771-778.Dou S Z,Yu X,Cao L.Multiple laser ablation on otolith nuclei for ICPMS to elementally fingerprint fish stocks:a case study[J].Oceanologia et Limnologia Sinica,2011,42(6):771-778(in Chinese).
[19]熊瑛,刘洪波,刘培廷,等.基于耳石元素微化学的江苏吕泗近岸小黄鱼生境履历重建[J].应用生态学报,2014,25(3):836-842.Xiong Y,Liu H B,Liu P T,et al.Reconstructing habitat history of Larimichthys polyactis in Lüsi coastal waters of Jiangsu Province,China based on otolith microchemistry[J].Chinese Journal of Applied Ecology,2014,25(3):836-842(in Chinese).
[20]Secor D H,Rooker J R.Is otolith strontium a useful scalar of life cycles in estuarine fishes?[J].Fisheries Research,2000,46(1):359-371.
[21]Yang J,Jiang T,Liu H.Are there habitat salinity markers of Sr:Ca ratio in otolith of wild diadromous fishes?A literature survey[J].Ichthyological Research,2011,58:291-294.
[22]Liu H,Jiang T,Huang H,et al.Estuarine dependency in Collichthys lucidus,of the Yangtze River Estuary as revealed by the environmental signature of otolith strontium and calcium[J].Environmental Biology of Fishes,2015,98(1):165-172.
[23]Zimmerman C E.Relationship of otolith strontium-tocalcium ratios and salinity:expe[J].Canadian Journal of Fisheries and Aquatic Sciences,2005,62(1):88-97.
[24]Kalish J M.Otolith microchemistry:validation of the effects of physiology,age and environment on otolith composition[J].Journal of Experimental Marine Biology and Ecology,1989,132(3):151-178.
[25]Hamer P A,Jenkins G P.Comparison of spatial variation in otolith chemistry of two fish species and relationships with water chemistry and otolith growth[J].Journal of Fish Biology,2007,71(4):1035-1055.
[26]管双全.基于耳石微化学成分对渤、黄、东海蓝点马鲛群系结构的研究[D].中国海洋大学,2011.Guan S Q.Otolith chemistry reveals fine population structure of Bohai,Yellow Sea and Eastern China Sea in the migratory Japanese Spanish mackerel(Scomberomorus niphonius).[D]Ocean university of China,2011(in Chinese)
[27]Brown R J,Severin K P.Otolith chemistry analyses indicate that water Sr:Ca is the primary factor influencing otolith Sr:Ca for freshwater and diadromous fish but not for marine fish[J].Canadian Journal of Fisheries and Aquatic Sciences,2009,66(10):1790-1808.
[28]Elsdon T S,Gillanders B M.Interactive effects of temperature and salinity on otolith chemistry[J].Geochimica Et Cosmochimica Acta,2002,101(101):12-23.
[29]Martin G B,Thorrold S R.Temperature and salinity effects on magnesium,manganese,and barium incorporation in otoliths of larval and early juvenile spot Leiostomus xanthurus[J].Marine Ecology Progress Series,2005,293:223-232.
[30]Martin G B,Wuenschel M J.Effect of temperature and salinity on otolith element incorporation in juvenile gray snapper Lutjanus griseus[J].Marine Ecology Progress Series,2006,324:229-239.
[31]Woodcock S H,Munro A R,Crook D A,et al.Incorporation of magnesium into fish otoliths:determining contribution from water and diet[J].Geochimica et Cosmochimica Acta,2012,94:12-21.
[32]Miller J A.Effects of water temperature and barium concentration on otolith composition along a salinity gradient:implications for migratory reconstructions[J].Journal of Experimental Marine Biology and Ecology,2011,405(1-2):42-52.
[33]Wells B K,Rieman B E,Clayton J L,et al.Relationships between water,otolith,and scale chemistries of westslope cutthroat trout from the Coeur d'Alene River,Idaho:the potential application of hard-part chemistry to describe movements in freshwater[J].Transactions of the American Fisheries Society,2003,132(3):409-424.
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