Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica
Contribution of zooplankton faecal pellets to carbon transport of the mesopelagic layers in the polynya region of Prydz Bay, Antarctica
复制标题
浮游动物粪便颗粒对南极普里兹湾冰间湖地区中层碳迁移的贡献
DOI：
10.1016/j.ecss.2019.04.006
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发表时间：
2019-06
期刊：
影响因子：
--
通讯作者：
Chaolun Li
中科院分区：
文献类型：
--
作者：
Guang Yang;Zhengbing Han;Jianming Pan;Konglin Zhou;Yanqing Wang;Chaolun Li
根据2013年3月至2014年2月部署在普里兹湾波尼亚地区450 m的沉积物捕集器样本，分析了浮游动物游泳者(积极进入沉积物捕捉器的游泳者)和粪便颗粒对颗粒有机碳的贡献的季节变化。浮游动物的游动通量在6.18ind m−2d−1~20.00ind m−2d−1之间，其中翼足类(主要是水蚤)含量最高。这是他们的一部分。在南半球秋冬季，螺旋藻种群通过死亡后的被动下沉对有机碳通量有较大的贡献。下沉的潜在贡献。冬季螺旋藻POC通量可达15.21%。粪便颗粒有四种类型：圆柱形、圆形、椭圆形和卵圆形。粪便颗粒碳通量(0.0 1~4.36 mg Cm−2 d−1)对POC通量的贡献率为5.5 4%~6 2.0 0%。柱状粪便颗粒在冬季丰度较低，但在初夏丰度较高，可归因于冰虾Euphausiacystallorosas。粪便颗粒碳通量在初夏(12月)表现出较高的值(1.0 3 mg Cm−2 d−1)，但由于未放牧藻类的大量存在，对POC通量的贡献很小(9.18%)。盛夏(1月)较高的粪便颗粒碳通量(1.98 mg Cm−2day−1)对POC通量的贡献最大(62.00%)。秋季和冬季，粪便颗粒碳通量低，卵形颗粒(主要产生BYL)。Helicina)是最丰富的。冬季样品中出现了完整的新鲜颗粒和粪便绒毛(降解的粪便颗粒)，这表明浮游动物的活动(粪便颗粒的垂直迁移和碎裂)对碳通量有影响。结果表明，浮游动物在普里兹湾波尼亚地区的碳通量中起着重要作用。
Seasonal changes in the zooplankton swimmer (those actively swimming into sediment traps) and faecal pellet contribution to particulate organic carbon (POC) were analysed based on sediment trap samples deployed at 450 m in the polynya region of Prydz Bay during March 2013–February 2014. The zooplankton swimmer flux ranged from 6.18 ind m−2day−1to 20.00 ind m−2day−1and pteropods (mainlyLimacina helicina) were the most abundant group. Part of theL. helicinapopulation could make a large contribution to the organic carbon flux by passive sinking after death during the austral autumn and winter. The potential contribution of sinkingL. helicinato the POC flux could reach 15.21% during winter. Four types of faecal pellets were found: cylindrical, round, ellipsoidal and ovoid. The faecal pellet carbon flux (0.01–4.36 mg C m−2day−1) contributed 5.54%–62.00% of the POC flux. Cylindrical faecal pellets, which had low abundance in winter but higher abundance in the early austral summer, were attributed to the ice krillEuphausiacrystallorophias. The faecal pellet carbon flux showed a high value (1.03 mg C m−2day−1) but made little contribution (9.18%) to the POC flux during early summer (December) in relation to the large amount of ungrazed algae. The high faecal pellet carbon flux (1.98 mg C m−2day−1) during mid-summer (January) made the greatest contribution (62.00%) to the POC flux. During autumn and winter, the faecal pellet carbon flux was low and ovoid pellets (mostly generated byL. helicina) were the most abundant. The occurrence of intact fresh pellets and faecal fluff (degraded faecal pellets) in the winter samples suggested that zooplankton activities (diel vertical migration and fragmentation of faecal pellets) had an effect on the carbon flux. The results demonstrated that zooplankton could play an important role in the carbon flux in the polynya region of Prydz Bay.
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影响因子：
2.3
作者：
S. Gerhardt;H. Groth;C. Rühlemann;R. Henrich
通讯作者：
S. Gerhardt;H. Groth;C. Rühlemann;R. Henrich
DOI：
10.1016/j.dsr.2018.01.003
发表时间：
2018-03
期刊：
--
影响因子：
--
作者：
Naoya Yokoi;Yoshiyuki Abe;M. Kitamura;M. Honda;A. Yamaguchi
通讯作者：
Naoya Yokoi;Yoshiyuki Abe;M. Kitamura;M. Honda;A. Yamaguchi
影响因子：
4.9
作者：
C. Manno;G. Stowasser;P. Enderlein;Sophie Fielding;G. Tarling
通讯作者：
C. Manno;G. Stowasser;P. Enderlein;Sophie Fielding;G. Tarling
南极洲普里兹湾主要浮游动物的摄食，在南方春/夏季：食物供应和物种反应
影响因子：
1.7
作者：
Li, Chaolun;Sun, Song;Zhang, Cuixia;He, Qing
通讯作者：
He, Qing
影响因子：
2.1
作者：
C. Manno;V. Tirelli;A. Accornero;S. F. Umani
通讯作者：
C. Manno;V. Tirelli;A. Accornero;S. F. Umani