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| 1 | Molecular phylogeny and biogeography of the highly specialized grade schizothoracine fishes (Teleostei:Cyprinidae) inferred from cytochrome b sequences显示文摘We recovered the phylogenetic relationships among 23 species and subspecies of the highly special-ized grade schizothoracine fishes distributing at 36 geographical sites in the Tibetan Plateau and its surrounding regions by analyzing sequences of cytochrome b genes. Furthermore, we estimated the possible divergent times among lineages based on a historical geological isolation event in the Tibetan Plateau. The molecular data revealed that the highly specialized grade schizothoracine fishes were not a monophyletic group, but were the same as genera Gymnocypris and Schizogypsis. Our results indi-cated that the molecular phylogenetic relationships apparently reflected their geographical and historical associations with drainages, namely species from the same and adjacent drainages clustered together and had close relationships. The divergence times of different lineages were well consistent with the rapid uplift phases of the Tibetan Plateau in the late Cenozoic, suggesting that the origin and evolution of schizothoracine fishes were strongly influenced by environment changes resulting from the upheaval of the Tibetan Plateau. | HE DeKui CHEN YiFeng | 2007 | Chinese Science Bulletin2007，52，6： | 19 |
| 2 | Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle显示文摘The northward drift of the Indian Plate and its collision with Eurasia have profoundly impacted the evolutionary history of the terrestrial organisms, especially the ones along the Indian Ocean rim. Climbing perches(Anabantidae) are primary freshwater fishes showing a disjunct south Asian-African distribution,but with an elusive paleobiogeographic history due to the lack of fossil evidence. Here, based on an updated time-calibrated anabantiform phylogeny integrating a number of relevant fossils, the divergence between Asian and African climbing perches is estimated to have occurred in the middle Eocene(ca.40 Ma, Ma: million years ago), a time when India had already joined with Eurasia. The key fossil lineage is ?Eoanabas, the oldest anabantid known so far, from the upper Oligocene of the Tibetan Plateau.Ancestral range reconstructions suggest a Southeast Asian origin in the early Eocene(ca. 48 Ma) and subsequent dispersals to Tibet and then India for this group. Thereby we propose their westbound dispersal to Africa via the biotic bridge between India and Africa. If so, climbing perch precursors had probably followed the paleobiogeographical route of snakehead fishes, which have a slightly older divergence between African and Asian taxa. As such, our study echoes some recent molecular analyses in rejecting the previously held ‘‘Gondwana continental drift vicariance' or late Mesozoic dispersal scenarios for the climbing perches, but provides a unique biogeographical model to highlight the role of the preuplift Tibet and the docked India in shaping the disjunct distribution of some air-breathing freshwater fishes around the Indian Ocean. | Feixiang Wu Dekui He Gengyu Fang Tao Deng | 2019 | Science Bulletin2019，64，7： | 6 |
| 3 | Modeling assessment of tidal current energy in the Qiongzhou Strait, China显示文摘In the present study, an existing three-dimensional finite volume computational ocean model(FVCOM) was refined and configured including an algorithm for computing the power density and mean power density at Qiongzhou Strait of China. The refined model was validated with the measured tidal levels and tidal currents at different gauging stations. The model results are in reasonable agreement with the measured data. Based on the modeling results, we assess the resource of the tidal stream energy in the Qiongzhou Strait and discuss the temporal and the spatial distribution of the tidal current energy there. The conclusion is extracted: the higher power density occurs in the middle area of the strait, and lower at both sides. Characteristics of power density such as the maximum possibility speed, maximum power density during the spring tide period and the neap tide period, have the similar distribution. The southeast part and central area of the strait are of rich tidal current energy, where the maximum possibility speed can reach to 4.6 m/s, and the maximum power density of the spring tide period and the neap tide period can reach 5 996 and 467 W/m^2 separately in the surface layer The annual mean power density can reach 819 W/m^2. Statistical length of accumulative time of the velocity exceeding 0.7 m/s is about 4 717 h at local point during a year. The total theoretical tidal current energy resource is approximately189.55 MW and the available exploited energy on present technology condition is 249, 20.2 and 263 GW/a separately by using the methods FLUX, FARM and GC in the Qiongzhou Strait. | WU He YU Huaming DING Jie YUAN Dekui | 2016 | Acta Oceanologica Sinica2016，35，1： | 4 |
| 4 | Taxonomic study of the genus Niwaella(Cypriniformes: Cobitidae) from East China, with description of four new species显示文摘Four loaches, Niwaella brevipinna Chen & Chen, sp. nov., N. fimbriata Chen & Chen, sp. nov., N. nigrolinea Chen & Chen, sp. nov. and N. qujiangensis Chen & Chen, sp. nov., are described based on specimens collected from Zhejiang and Anhui Provinces, East China. The mitochondrial cytochrome b gene of 28 individuals of seven species from seven locations collected from Zhejiang, Anhui and Jiangxi Provinces were amplified and analyzed. Morphological and molecular data showed that N. fimbriata Chen & Chen, sp. nov. and N. nigrolinea Chen & Chen, sp. nov., N. brevipinna Chen & Chen, sp. nov. and N. laterimaculata(Yan & Zheng), N. qujiangensis Chen & Chen, sp. nov. and N. longibarba Chen & Chen are closely related. The seven Chinese Niwaella species, N. brevipinna Chen & Chen, sp. nov., N. fimbriata Chen & Chen, sp. nov., N. laterimaculata, N. longibarba, N. nigrolinea Chen & Chen, sp. nov., N. qujiangensis Chen & Chen, sp. nov., and N. xinjiangensis are clearly distinguished by the combination of the color patter, mental lobes, suborbital spine, caudal peduncle, body shape, and subdorsal scales. | Yongxia Chen Dekui He Hao Chen Yifeng Chen | 2017 | Zoological Systematics2017，42，4： | 1 |
| 5 | Two new species of the genus Cobitis(Cypriniformes: Cobitidae) from South China显示文摘Two spined loaches, Cobitis oxycephala Chen YX & Chen YF, sp. nov. and C. brachysoma Chen YX & Chen YF, sp. nov., are described based on specimens collected from Guangdong and Hainan Provinces, South China. Morphology features and sequences of mitochondrial cytochrome b gene of these two new species were analyzed. Morphological and molecular data show that C. oxycephala Chen YX & Chen YF, sp. nov. is closely related to C. dolichorhynchus Nichols, and C. brachysoma Chen YX & Chen YF, sp. nov. is closely related to C. microcephala Chen & Chen. These two new species can be distinguished from their congeners by the combination of characteristics of body shape, color pattern, lamina circularis, mental lobes, suborbital spine, subdorsal scales, and caudal peduncle. | Yongxia Chen Hao Chen Dekui He Yifeng Chen | 2018 | Zoological Systematics2018，43，2： | 1 |
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