Page 19 - OPFC AR 2015-16
P. 19

三亞項目：探索新發現種群                                                      採集樣本                                          © Marine Mammal and
A New Population in Sanya                                         Taking biopsy sample  Marine Bioacoustics Laboratory, IDSSE, CAS

二零一四年，由保育基金資助的研究團隊在三亞水域                                           The Sanya population, first recorded in 2014 by an OPCFHK-
發現了新的中華白海豚種群，將中國水域內的中華                                            funded research team, is an important discovery, as it expands
白海豚分佈範圍向南擴展至超過緯度三度以外，遠達                                           the species' known distribution range in China by more than
海南島南部。由於三亞水域與中國其他水域中華白海豚                                          three degrees of latitude to the south of Hainan Island. Since
棲息地的水文特徵，例如水質、水溫及漁業資源等都                                           the hydrological characteristics of the Sanya region, such as
存在較大差異，故三亞水域種群的習性及結構或與                                            water quality, water temperature and fishery resources, are
其他種群有所不同，惟詳情需要繼續研究。                                               very different from other Chinese white dolphin habitats along
                                                                  the Chinese coasts, this newly discovered population may
因此，保育基金特別與中國科學院深海科學與工程                                            exhibit disparate habits and population structures. Continued
研究所共同展開了為期三年的調查，資助他們於二零                                           investigation is required.
一 五 年 至 二 零 一 八 年 間，透 過 相 片 辨 認、被 動 聲 學
監察及活體採樣等方法，深入了解這個新發現種群的                                           OPCFHK is working closely with the Sanya Institute of Deep-sea
狀況，以及影響其分佈、出沒時間及存續力等因素。                                           Science and Engineering of the Chinese Academy of Sciences,
此外，研究團隊發表了以《海南島西南水域首次發現                                           funding a three-year survey of the population from 2015 to
中 華 白 海 豚 群 體》為 題 的 論 文 *，探 討 是 次 新 發 現                           2018 with methodologies including photo identification, passive
(Li et al, 2016)。                                                 acoustic monitoring and biopsy sampling. Through this study,
                                                                  we hope to gather information on the dolphins’ population
                                               © Ada Yuen / USSP  dynamic and the main underlying factors affecting its spatial
                                                                  and temporal distribution, and population viability. The team has
聲學探測儀器 Equipment for passive acoustics survey                     already published a scientific paper regarding the discovery of
                                                                  this population (Li et al, 2016).

                                                                  * S. Li, M. Lin, X. Xu, L., Xing, P. Zhang, R.E. Gozlan, S-L. Huang, and D. W. First record of
                                                                  the Indo-Pacific humpback dolphin (Sousa chinensis) southwest of Hainan Island, China.
                                                                  Marine Biodiveristy Records. 2016;9:3

                                                                  © Marine Mammal and Marine Bioacoustics Laboratory, IDSSE, CAS
                                                                                                                                                           17
   14   15   16   17   18   19   20   21   22   23   24