Institute of Marine Biology, College of Life Sciences, National Taiwan Ocean University, Keelung, Taiwan.
Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, Taiwan.
PLoS One. 2019 Jul 22;14(7):e0219815. doi: 10.1371/journal.pone.0219815. eCollection 2019.
The present study recorded the population of the goby fish (Perciformes: Gobiidae), Eutaeniichthys cf. gilli Jordan & Snyder, 1901, from the tunnel burrowed by the mud shrimp Austinogebia edulis Ngo-Ho and Chan, 1992 in a mudflat in Shengang and Wangong of Changhua County, western Taiwan. This finding is not only a new record of the genus in Taiwan, it is also the first record of this species in a mudflat near an industrial park. In total, 56 individuals of E. cf. gilli were collected from June 2016 to September 2018. Morphological traits of males and females were measured. The resin casting method trapped bodies of E. cf. gilli that were present in the tunnel burrow and proved that the fish inhabits burrows of the mud shrimp A. edulis. In addition, a species of snapping shrimp was also found in the same tunnel. Symbiotic interaction may occur between E. cf. gilli, A. eduli and the snapping shrimp. The China Coastal Current (CCC) runs along the coastlines of Japan, Korea, China, and reaches western Taiwan during the northeast monsoon period. The CCC, therefore, might play an important role in the biogeographic distribution of E. cf. gilli in the western Pacific Ocean. Since E. cf. gilli is listed in the Red List as an endangered species of Japan for many years, Taiwan waters may provide a refuge for this fish species warranting a broader investigation. Since Taiwan is some distance away from the previously recorded locations in Japan, Korea, the Yellow Sea, and the Bohai Sea, a phylogenic analysis is warranted for population and species differentiation in the future.
本研究记录了台湾西部彰化伸港和王功泥滩，由泥虾 Austinogebia edulis Ngo-Ho 和 Chan, 1992 挖掘的隧道中的虾虎鱼（鲈形目：虾虎鱼科）种群，即吉尔氏拟无须鱚（Eutaeniichthys cf. gilli Jordan & Snyder, 1901）。这一发现不仅是该属在台湾的新记录，也是该物种在工业园区附近泥滩的首次记录。总共从 2016 年 6 月到 2018 年 9 月采集到 56 尾吉尔氏拟无须鱚。测量了雌雄个体的形态特征。树脂浇铸法捕捉到了存在于隧道中的吉尔氏拟无须鱚的身体，证明了这种鱼栖息在泥虾 A. edulis 的洞穴中。此外，还在同一隧道中发现了一种鼓虾。吉尔氏拟无须鱚、A. edulis 和鼓虾之间可能存在共生关系。中国沿岸流（CCC）沿日本、韩国和中国的海岸线运行，在东北季风期间到达台湾西部。因此，CCC 可能在中国太平洋西部对吉尔氏拟无须鱚的生物地理分布发挥了重要作用。由于吉尔氏拟无须鱚多年来被列为日本的濒危物种，台湾水域可能为这种鱼类提供了一个避难所，值得更广泛的调查。由于台湾与日本、韩国、黄海和渤海的先前记录地点相隔一定距离，因此未来需要进行种群和物种分化的系统发育分析。
