1989-1993：中国海洋大学水产学院养殖系，学士

1993-1996：中国海洋大学水产学院养殖系，硕士

1996-1999：中国海洋大学水产学院养殖系，博士

1999-2002：韩国仁荷大学黄海沿岸环境研究中心，博士后

2002-2005：奥地利萨尔茨堡大学动物研究所，博士后

2005-至今：中科院海洋研究所海洋生物分类与系统演化实验室，研究员，博士生导师

2007-至今：中科院海洋研究所海洋生物分类与系统演化实验室，主任 

1、主持中科院战略先导专项（Ａ类）子课题：海山区生物区系及多样性特征；2013.7-2018.6；1055.96万元；

2、主持国家自然科学基金：黄海沉积物中纤毛虫生物多样性与分布特征；2015.1-2018.12；91万元；

3、主持科技部973项目子课题：微小型浮游动物功能群演变与水母暴发的相互作用；2011.1-2015.12；50万元；

4、主持国家海洋局项目：全球变化与海气相互作用研究之生物部分；2012-2015；160万。

迄今发表研究论文107篇，其中SCI收录论文55篇；出版Springer国际专著1部，国内专著2部；制定国家海洋行业标准《海洋微型底栖生物调查规范》一项。

近5年发表的SCI收录论文：

* Yu, T. & Xu K. (通讯) 2014. Two new nematodes, Pseudelzalia longiseta gen. nov., sp. nov. and Paramonohystera sinica sp. nov. (Monhysterida, Xyalidae), from sediment in the East China Sea. Journal of Natural History, in press IF 0.778

* Chen, X., Miao, M., Ma, H., Al-Rasheid, K. A. S., Xu, K. (通讯) & Lin, X. 2014. Morphology, ontogeny and phylogeny of two brackish urostylid ciliates (Protist, Ciliophora, Hypotricha). The Journal of Eukaryotic Microbiology, accepted. IF 2.911

* Foissner, W., Wolf, K. W., Kumar, S. Xu, K. & Quintela-Alonso, P. 2014. Five new spathidiids (Ciliophora: Haptoria) from Caribbean tank bromeliads. ？Acta Protozoologica, 53(2): 159-194.？ IF 0.984

* Yu, T., Huang Y. & Xu K. (通讯) 2014. Two new nematode species, Linhystera breviapophysis and L. longiapophysis (Xyalidae, Nematoda), from the East China Sea. Journal of the Marine Biological Association of the United Kingdom, 94(3), 515–520. IF 1.023

* Zhan, Z., Stoeck, T., Dunthornb, M. & Xu, K. (通讯) 2014. Identification of the pathogenic ciliate Pseudocohnilembus persalinus (Oligohymenophorea: Scuticociliatia) by fluorescence in situ hybridization. European Journal of Protistology, 50, 16-24. IF 1.351

* Yu, T., Huang Y. & Xu K. (通讯) 2014. Two new nematode species, Linhystera breviapophysis and L. longiapophysis (Xyalidae, Nematoda), from the East China Sea. Journal of the Marine Biological Association of the United Kingdom, accepted

* Zhan, Z., Xu, K. (通讯) & Dunthorn, M. 2013. Evaluating molecular support for and against the monophyly of the Peritrichia and phylogenetic relationships within the Mobilida (Ciliophora, Oligohymenophorea). Zoologica Scripta, 42: 213–226. IF 2.913

* Zhao, F., Xu, K. (通讯). 2013. Microbial genetic diversity and ciliate community structure along an environmental gradient in coastal soil. European Journal of Protistology, 49: 516–525. IF 1.508

* Zhao, F., Xu, K. (通讯), Zhang, D. 2013. Spatio-temporal variations in the molecular diversity of microeukaryotes in particular ciliates in soil of the Yellow River Delta, China. Journal of Eukaryotic Microbiology, 60, 282–290. IF 2.698

* Dai, R. & Xu, K. (通讯), He, Y. 2013. Morphological, physiological, and molecular evidences suggest that Euplotes parawoodruffi is a junior synonym of Euplotes woodruffi (Ciliophora, Euplotida). Journal of Eukaryotic Microbiology, 60: 70–78. IF 2.659

* Wang, L. & Xu, K. (通讯) 2013. Spatiotemporal distribution of protozooplankton and copepod nauplii in relation to the occurrence of giant jellyfish in the Yellow Sea. Chinese Journal of Oceanology and Limnology, 31 (6): 1226-1240. IF 0.577

* Huang, Y. & Xu, K. 2013. Two new species of the genus Paracyatholaimus Micoletzky (Nematoda: Cyatholaimidae) from the Yellow Sea. Journal of Natural History, 47(21-22): 1381-1392. IF 0.778

* Huang, Y. & Xu, K. 2013. Two new free-living nematode species (Nematoda: Cyatholaimidae) from intertidal sediments of the Yellow Sea, China. Cah. Biol. Mar. 54: 1-10. IF 0.51

Huang, Y. & Xu, K. (通讯) 2013. A new species of free-living nematode of Daptonema (Monohysterida: Xyalidae) from the Yellow Sea, China. Aquatic Science and Technology, 1(1): 1-8.

* Wu, X., Sun, R., Liu, R. & Xu, K. (通讯) 2013.Two new species of Eunice Cuvier, 1817 (Polychaeta, Eunicidae) from the coral reefs of Hainan Island with a key to 16 species of Eunice from China seas. Zootaxa, 3652 (2): 249–264. IF 0.974

* Li, Y., Liu, R. & Xu, K. (通讯) 2013. Phytocoetes sinensis n. sp. and Telmatactis clavata (Stimpson, 1855), two poorly known species of Metridioidea (Cnidaria: Anthozoa: Actiniaria) from Chinese waters. Zootaxa, 3637 (2): 113–122. IF 0.974

* Li, J., Chen, F., Liu, Z., Xu, K. & Zhao, B. 2013. Compositional differences among planktonic ciliate communities in four subtropical eutrophic lakes in China. Limnology, 14(1): 105-116. IF 0.983

* Du, Y., Xu, K. (通讯), Warren, A., Lei, Y., Dai, R. 2012. Benthic ciliate and meiofaunal communities in two contrasting habitats of an inter-tidal estuarine wetland. Journal of Sea Research, 70: 50-63. IF 2.371

Zhao, F., Xu, K. (通讯). 2012. Efficiency of DNA extraction methods on the evaluation of soil microeukaryotic diversity. Acta Ecologica Sinica 32: 209–214.

* Zhao, F., Xu, K. (通讯), He, Y. 2012. Application of the Ludox-QPS method for estimating ciliate diversity in soil and comparison with direct count and DNA fingerprinting. European Journal of Soil Biology 49: 112-118. IF 1.686

* Meng, Z., Xu, K. (通讯), Dai, R. & Lei, Y. 2012. Ciliate community structure, diversity and trophic role in offshore sediments from the Yellow Sea. Eur. J. Protistol. 48: 73–84. IF 2.322

* Meng, Z., Xu, K. (通讯), Lei, Y. 2011. Community composition, distribution, and contribution of microbenthos in offshore sediments from the Yellow Sea. Continental Shelf Research, 31: 1437-1446. IF 1.928

* Li C, Xu, K. (通讯), Lei, Y. 2011. Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina. Aquatic Microbial Ecology, 64: 97-104. IF 2.089

* He, Y., Xu, K. (通讯) 2011. Morphology and small subunit rDNA phylogeny of a new soil ciliate, Bistichella variabilis n. sp. (Ciliophora, Stichotrichia). J. Eukaryot. Microbiol., 58(4): 332–338. IF 2.397

* Dai, R. & Xu, K. (通讯) 2011. Taxonomy and phylogeny of Tunicothrix (Ciliophora, Stichotrichia), with the description of two new species: Tunicothrix brachysticha n. sp. and Tunicothrix multinucleata n. sp., and the establishment of Parabirojimidae n. fam. Int. J. Syst. Evol. Microbiol., 61: 1487–1496. IF 1.930

* Xu, K., Lei, Y., Al-Rasheid, K.A.S. & Song, W. 2011. Two new ectoparasitic ciliates, Sphenophrya solinis sp. nov. and Planeticovorticella paradoxa sp. nov. (Protozoa: Ciliophora), from marine molluscs. Journal of the Marine Biological Association of the United Kingdom, 91(2): 265-274. IF 0.933

* Xu, K., Choi, J. K. (通讯), Lei Y. & Yang, E.J. 2011. Marine ciliate community in relation to eutrophication of coastal waters in the Yellow Sea. Chinese Journal of Oceanology and Limnology, 29 (1): 118-127. SCI-E

* Xu, K. (通讯), Du, Y. Lei, Y. & Dai, R. 2010. A practical method of Ludox density gradient centrifugation combined with protargol staining for extracting and estimating ciliates in marine sediments. Eur. J. Protistol., 46: 263-270. IF 1.966

* Gong, Y., Xu, K., Zhan, Z., Yu, Y., Li, X., Villalobo, E. & Feng, W. 2010. Alpha-tubulin and small subunit rRNA phylogenies of peritrichs are congruent and do not support the clustering of mobilids and sessilids (Ciliophora, Oligohymenophorea). J. Eukaryot. Microbiol., 57(3): 265-272. IF 2.355

* Lei, Y., Xu, K. (通讯), Choi, J. K., Hong, H. P. & Wickham, S. A. 2009. Community structure and seasonal dynamics of planktonic ciliates along salinity gradients. European Journal of Protistology (Eur J Protistol). 45: 305-319. IF 1.0

* Zhan, Z., Xu, K. (通讯), Warren, A. & Gong, Y. 2009. Reconsideration of phylogenetic relationships of the subclass Peritrichia (Ciliophora, Oligohymenophorea) based on small subunit ribosomal RNA gene sequences, with the establishment of a new subclass Mobilia Kahl, 1933. J. Eukaryot. Microbiol., 56(6): 552-558. IF 1.502

* Du, Y., Xu, K. (通讯) & Lei, Y. 2009. Simultaneous enumeration of diatom, protozoa and meiobenthos from marine sediments using Ludox-QPS method. Chinese Journal of Oceanology and Limnology 27(4): 775-783. SCI-E