Wenzhi Lin (Joe) 林文治

Research Scientist

Ph.D. (2014)

E-mail: linwz(AT)idsse.ac.cn

Academic Record
  • Ph.D., Sun Yat-sen University (2014)

  • M.Sc. (Marine Biotechnology and Molecular Analysis), Sun Yat-sen University (2007)

  • B.Sc. (Life Sciences), Sun Yat-sen University (2005)

Supervisors
Thesis

Divergence history and population biology of the humpback dolphin (genus Sousa). (2014). Ph.D. Thesis. Sun Yat-sen University [PDF]

Prof. Yuping Wu, Sun Yat-sen University

Dr. Leszek Karczmarski, The University of Hong Kong

Abstract:  The humpback dolphin (genus Sousa) is a small toothed cetacean inhabiting coastal and estuarine waters within the tropics and subtropics of the Indian Ocean, western Pacific, and off tropical west Africa. Due to its specific habitat preferences and restricted inshore distribution, local populations of this species are usually small, seldom exceeding a few hundred individuals, and, especially in recent decades, face high level of anthropogenic impacts. Several field studies specifically dedicated to humpback dolphins took off in 1990s, focusing on the ecology, morphology, taxonomy, toxicology and conservation. However, despite these past and ongoing work, our knowledge of this coastal dolphin remains limited and the numerous knowledge gaps hinder the conservation and management efforts. In the study described in my thesis, I assembled the mitochondrial DNA data that had been generated in various recently published studies, and reconstructed the dispersal and divergence history of genus Sousa. From the phylogeographic point of view, I propose a five-species taxonomic classification of this genus, with further sub-species structure within Asian and Australian waters. I then use both the mitochondrial DNA and microsatellite loci to investigate the genetic structure of three main populations of the humpback dolphin in China (Xiamen, Pearl River Estuary and Guangxi), to evaluate how the sample size, different source of data and analytical approach affect the outcome of the previous studies. I conclude that at the current stage, none of the previous studies is sufficiently conclusive. As the next step, I conducted a photo-identification mark-recapture field study to advance our knowledge of the humpback dolphins inhabiting the Pearl River Estuary (PRE) region, which represents first such field study in the mainland China waters of the PRE. Mark-recapture analyses generated an estimate of 800-900 humpback dolphins in waters of eastern PRE, and initial trend assessment suggests that the population is in decline. In the final part of my research, with the application of individual photo-identification methods, I investigated the population social structure of humpback dolphins from Neilingding Sea to Modao Men, and, for the first time in this region, I describe the network parameters of different population and community units.

Current Position
  • Associate Research Scientist, Marine Mammal and Marine Bioacoustics Laboratory, Chinese Academy of Sciences, Hainan, P.R. China (2019 – present)

Previous Positions
  • Associate Researcher, Sun Yat-sen University (2015-2018)

  • Post-Doctoral Researcher, The University of Hong Kong (2014 - 2015)

  • Research Assistant, Pearl River Estuary Chinese White Dolphin National Nature Reserve (2007 - 2014)

Research Grants

As PI

  • 2016/2017: Population dynamics and Habitat usage in the Neilingding Sea. - Fundamental Research Funds for the Central Universities, China

  • 2016/2017: The social structure, age composition and population parameter of the Chinese white dolphin from Neilingding Sea to Modao Men. - Ocean Park Conservation Foundation, Hong Kong

  • 2012/2013:  Study of population dynamic of Chinese White Dolphins in the Pearl River Estuary: 2nd year of data collection and preliminary analysis. (with R. Zheng) - Ocean Park Conservation Foundation, Hong Kong

 

As Co-PI

  • 2016/2019: Tracing the demographic history of two sympatric cetaceans in the face of enviromental change in the Pearl River Delta coastal ecosystem. (with L. Karczmarski) – Research Grants Council (RGC), General Research Fund, Hong Kong.

  • 2012/2013:  Taxonomic status and population structure of finless porpoise in South China Sea. (with Y. Wu) - Ocean Park Conservation Foundation, Hong Kong

  • 2011/2012:  Population parameters of the Chinese White Dolphin in the Pearl River Estuary: 1st year data collection. (with J. Chen) - Ocean Park Conservation Foundation, Hong Kong

  • 2009/2010:  Monitoring of Indo-Pacific Humpback dolphins in the southern part of the Pearl River Estuary. (with J. Chen)  - Ocean Park Conservation Foundation, Hong Kong

  • 2008/2009:  Evaluation on trace elements and application of trace elemental fingerprinting to monitor habitat use in Chinese white dolphins inthe Pearl River Estuary. (with J. Chen) - Ocean Park Conservation Foundation, Hong Kong

Publications

Lin, W., Karczmarski, L., Li, J., Chan, S.C.Y., Guo, L., Ning, X., Wu, Y.  Differential population dynamics of a coastal porpoise correspond to the fishing effort in a large estuarine system.  (Submitted, Under Review)

Lin, W., Karczmarski, L., Wu, Y. (2017).  Phylogeography of the finless porpoise and potential implications for the taxonomy of Neophocaena spp.  Mammalian Biology 86: 92–101.  doi.org/10.1016/j.mambio.2017.07.002

Lin, W., Karczmarski, L., Xia, J., Zhang, X., Yu, X., Wu, Y., (2016). Increased human occupation and agricultural development accelerates the population contraction of an estuarine delphinid. Scientific Reports 6, 35713.

 

Zheng, R., Karczmarski, L., Lin, W., Chan, S.C.Y., Chang, W.-L., Wu, Y., (2016). Infanticide in the Indo-Pacific humpback dolphin (Sousa chinensis). Journal of Ethology 34, 299-307.

 

Zhang, X., Lin, W., Zhou, R., Gui, D., Yu, X., Wu, Y., (2016). Low Major Histocompatibility Complex Class II Variation in the Endangered Indo-Pacific Humpback Dolphin (Sousa chinensis): Inferences About the Role of Balancing Selection. Journal of Heredity.

 

Li, S., Wang, D., Wang, K., Hoffmann-Kuhnt, M., Fernando, N., Taylor, E.A., Lin, W., Chen, J., Ng, T., (2016). Likely Age-Related Hearing Loss (Presbycusis) in a Stranded Indo-Pacific Humpback Dolphin (Sousa chinensis), In The Effects of Noise on Aquatic Life II. eds A.N. Popper, A. Hawkins, pp. 623-629. Springer New York, New York, NY.

 

Karczmarski, L., Huang, S.-L., Or, C.K.M., Gui, D., Chan, S.C.Y., Lin, W., Porter, L., Wong, W.-H., Zheng, R., Ho, Y.-W., Chui, S.Y.S., Tiongson, A.J.C., Mo, Y., Chang, W.-L., Kwok, J.H.W., Tang, R.W.K., Lee, A.T.L., Yiu, S.-W., Keith, M., Gailey, G., Wu, Y., (2016). Humpback Dolphins in Hong Kong and the Pearl River Delta: Status, Threats and Conservation Challenges. Advances in Marine Biology 73, 27-64.

Lin, W., Frère, C.H., Karczmarski, L., Xia, J., Gui, D., Wu, Y., (2014). Phylogeography of The Finless Porpoise (genus Neophocaena): Testing The Stepwise Divergence Hypothesis in The Northwestern Pacific. Sci. Rep. 4, 6572.

 

Jia, K., Lin, W., Gui, D., Karczmarski, L., Wu, Y., (2014). Molecular evidence reveals the distinctiveness of Indo-Pacific finless porpoises (Neophocaena phocaenoides) in the Pearl River Estuary and insights into genus Neophocaena’s origin. Marine Biology 161, 1919-1930.

 

He, X., Ning, X., Lin, W., Liu, J., Zheng, R., Wen, H., Wu, Y., (2014). Fatty Acid Composition of the Fishes Fed by Chinese White Dolphin. Fisheries Science 33, 356-362 (paper in Chinese).

 

Li, S., Wang, D., Wang, K., Hoffmann-Kuhnt, M., Fernando, N., Taylor, E.A., Lin, W., Chen, J., Ng, T., (2013). Possible age-related hearing loss (presbycusis) and corresponding change in echolocation parameters in a stranded Indo-Pacific humpback dolphin. The Journal of Experimental Biology 216, 4144-4153.

Lin W, Chang L, Frère CH, Zhou R, Chen J, Chen X, Wu Y (2012).  Differentiated or not? An assessment of current knowledge of genetic structure of Sousa chinensis in China. Journal of Experimental Marine Biology and Ecology 416–417: 17-20.

 

Huang S-L, Karczmarski L, Chen J, Zhou R, Lin W, Zhang H, Li H, Wu Y (2012). Demography and population trends of the largest population of Indo-Pacific humpback dolphins. Biological Conservation 147: 234-242.

 

Lin W, Zhou R, Porter L, Chen J, Wu Y (2010).  Evolution of Sousa chinensis: A scenario based on mitochondrial DNA study. Molecular Phylogenetics and Evolution 57: 907-911.

 

Lin W, Xu G, Hu L, Chen X, Zhou R, Zhou R, Ning X, Wu Y (2009).  A typical case of dolphin entanglement. Modern Agricultural Science 16: 110-112 (in Chinese).

 

Chen Y, Ning X, Chen J, Zhai K, Chen X, Lin W, Wu Y (2008).  Trace element concentrations in Chinese white dolphins (Sousa chinensis) from water of Pearl River Estuary. Marine Environmental Science 27: 580-583 (in Chinese).

Conference / Workshop Contributions

Lin W., L Karczmarski, Jia X, Zhang X, Yu X, Wu Y. (2016). Reconstructing the demographic trajectory of the Chinese white dolphins in the Pearl River Delta. The 5th Symposium on Cetacean Research and Conservation Cross Taiwan Strait. Sanya. pp41.

 

郭浪,林文治,张海飞,李俊,郑锐强,吴玉萍 (2016). 利用体色比率探究珠江三角洲中华白海豚种群的年龄结构. The 5th Symposium on Cetacean Research and Conservation Cross Taiwan Strait. Sanya. Pp21.

 

林文治,Leszek Karczmarski,莫雅茜,郑锐强,陈钊贤,柯嘉敏,古锡纯,吴玉萍. (2014)。珠江口内伶仃洋中华白海豚标记重捕获分析。第十四届鲸豚生态与保育研讨会:两岸鲸豚研究、赏鲸与保护区管理,台湾。

Lin W, Zheng R, Wu Y (2012).  How does the survey effort influence the mark-recapture analysis of Sousa chinensis in the Pearl River Estuary?  The 3rd Symposium on Cetacean Research and Conservation Cross Taiwan Strait. pp 13.

 

Gui D, Lin W, Wu Y (2012).  Preliminary study on population structure of Indo-Pacific finless porpoise in the Pearl River Estuary.  The 3rd Symposium on Cetacean Research and Conservation Cross Taiwan Strait. pp 32.

 

Ding L, Zhou R, Lin W, Wu Y (2012).  Expression of MHC II genes in tissues of Sousa chinensis.  The 3rd Symposium on Cetacean Research and Conservation Cross Taiwan Strait. pp 20.

 

Li S, Wang D, Wang K, Hoffmann-Kuhnt M, Nimal F, Elizabeth T, James S, Lin W, Chen J. (2012).  Presbysusis in a stranded Indo-Pacific humpback dolphin (Sousa chinensis)?  The 3rd Symposium on Cetacean Research and Conservation Cross Taiwan Strait. pp 14.

 

Wilson B, Porter L, Gordon J, Hammond J, Hodgins N, Wei L, Lin W, Lusseau D, Tsang A, Van Waerebeek K, Wu YP (2008).  A decade of management plans, conservation initiatives and protective legislation for Chinese White Dolphin (Sousa chinensis): An assessment of progress and recommendations for future management strategies in the Pearl River Estuary, China.  Workshop Report, 7-11 April, 2008. Hong Kong: WWF Hong Kong 65 pp.

 

Chen J, Lin W (2008).  Conservation Strategies Adopted By Pearl River Estuary Chinese White Dolphin National Nature Reserve. An Assessment of Progress and Recommendations for Future Management Strategies in the Pearl River Estuary, China. Workshop Report, 7-11 April, 2008. Hong Kong: WWF Hong Kong. pp 39

 

Lin W, Mo D, Chen J, Chen X,  ZhaiK, Wu Y (2008).  Molecular Genetics of Chinese white dolphin in Pearl River Estuary. An Assessment of Progress and Recommendations for Future Management Strategies in the Pearl River Estuary, China.  Workshop Report, 7-11 April, 2008. Hong Kong: WWF Hong Kong. pp 40-41.

 

Lin W, Chen X, Chen J, Wu Y (2008). How isolated was the Sousa chinensis living in Pearl River Estuary?  Abstract book of symposium on cetacean research and conservation across Taiwan straits. pp 37.

 

Mo D, Lin W, Chen J, Chen X, Zhai K,  Wu Y (2008).  Genetic structure of Indo-pacific humpback dolphins in the Pearl River Estuary and its relationship with Xiamen and Guangxi.  Abstract book of symposium on cetacean research and conservation across Taiwan straits. pp 43.

 

Xu A, Xu X, Ding L, Lin W, et al. (2007).  Distinct selective strength on the 3’ untranslated region of HLA class I and II genes hints the different expression regulation between them. 21st EFI Conference, Barcelona, Spain. Tissue antigens. pp 57.

 

Fu Y, Xu Y, Ding L, Lin W, et al. (2007).  Characteristic of HLA polymorphism in Chinese population and their anthropological significance. 21st EFI Conference, Barcelona, Spain. Tissue antigens. pp 58.

 

© Leszek Karczmarski

© Joe Lin

© Joe Lin

© Joe Lin

CETACEAN ECOLOGY LAB

The Swire Institute of Marine Science, The University of Hong Kong

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