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Luo XM, Yang RG, Du LN, Luo FG. A new loach species of the genus Oreonectes (Teleostei, Cypriniformes, Nemacheilidae) from Guangxi, China. Zookeys 2024; 1196:285-301. [PMID: 38586077 PMCID: PMC10995607 DOI: 10.3897/zookeys.1196.109810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 02/12/2024] [Indexed: 04/09/2024] Open
Abstract
A new loach species, Oreonectesandongensissp. nov. is described from the Guangxi Zhuang Autonomous Region, China. The new species can be differentiated from other members of the genus by combinations of characters: a developed posterior chamber of the swim bladder, 13-14 branched caudal-fin rays, 8-16 lateral-line pores, body width 12-15% of standard length (SL), interorbital width 42-47% of head length (HL), and caudal peduncle length 11-16% of SL. Bayesian inference phylogenetic analysis based on mitochondrial Cyt b provided strong support for validity of O.andongensissp. nov. (uncorrected p-distance 6.0-7.5%).
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Affiliation(s)
- Xue-Ming Luo
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guilin 541004, China
| | - Rui-Gang Yang
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541004, China
| | - Li-Na Du
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education Guilin 541004, China
| | - Fu-Guang Luo
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, Guangxi 530022, China
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Yu J, Luo T, Lan CT, Zhou JJ, Deng HQ, Xiao N, Zhou J. Oreonectesdamingshanensis (Cypriniformes, Nemacheilidae), a new species of stream fish from Guangxi, Southwest China. Zookeys 2023; 1180:81-104. [PMID: 37767522 PMCID: PMC10520720 DOI: 10.3897/zookeys.1180.104645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/03/2023] [Indexed: 09/29/2023] Open
Abstract
In this work, a new species of the genus Oreonectes is described, named Oreonectesdamingshanensis Yu, Luo, Lan, Xiao & Zhou, sp. nov., collected from the Damingshan Mountains of the Guangxi Zhuang Autonomous Region, China. Phylogenetic trees constructed based on the mitochondrial Cyt b showed that the new species represents an independent evolutionary lineage, with uncorrected genetic distances (p-distance) from congeners ranging from 6.1% to 8.9%. Morphologically, the new species can be distinguished from five other species of the genus by a combination of characters. The discovery of this new species raises the number of known species of Oreonectes from five to six. Our study suggests that O.platycephalus may be a complex containing multiple species and that previously recorded areas need to be further delimited and reevaluated.
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Affiliation(s)
- Jing Yu
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Tao Luo
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Chang-Ting Lan
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Jia-Jun Zhou
- School of Karst Science, Guizhou Normal University, Guiyang 550001, Guizhou, China
- Zhejiang Forest Resource Monitoring Center, Hangzhou 310020, Zhejiang, China
| | - Huai-Qing Deng
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Ning Xiao
- Zhejiang Forestry Survey Planning and Design Company Limited, Hangzhou 310020, Zhejiang, China
| | - Jiang Zhou
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, Guizhou, China
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Wu L, Fan C, Lan C, Yu J, Wen H, Yang Q, Xiao N, Zhou J. A long-ignored unique ecosystem of cavefishes in the southern karst: achievements, challenges, and prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:90489-90499. [PMID: 37479926 DOI: 10.1007/s11356-023-28806-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/11/2023] [Indexed: 07/23/2023]
Abstract
Cavefishes represent a taxon that has experienced natural selection pressures. This paper summarizes the results with respect to the taxonomy, diversity, phylogeny, and adaptation aspects of cavefishes research. It showed that: 1) These studies suggest that cavefishes play important roles in the study of geologic history and adaptation to extreme environments, but the mechanisms involved 168 species of cavefishes belonging to 17 genera, four families, and two orders have been recorded in China. Meanwhile, more new species are being discovered recently, and the species diversity of cavefishes are still underestimated, indicating the need to strengthen the survey in field. 2) The biogeography of cavefishes have focused on Sinocyclocheilus and Triplophysa, that have helped understand the geomorphology of karst areas in southern China and the spatial pattern of species diversity. These studies revealed the influences of evolution and geological history in Sinocyclocheilus, but there are still many species that have not been studied accordingly. 3) Some adaptive mechanistic studies have been conducted on cavefishes, primarily focusing on eye and body color degradation and energy metabolism in the genus Sinocyclocheilus to reveal adaptive mechanisms in the dark environment. 4) The IUCN list of protected cavefishes species in China only includes 21 species. The List of Key Protected Wild Animals for 2021 includes all species of Sinocyclocheilus as National Class II.It is necessary to strengthen the research on the biodiversity and adaptation and need consider the conservation actions for cavefishes.
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Affiliation(s)
- Li Wu
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
| | - Cui Fan
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
| | - Changting Lan
- School of Life Sciences, Guizhou Normal University, Guiyang, 550001, China
| | - Jing Yu
- School of Life Sciences, Guizhou Normal University, Guiyang, 550001, China
| | - Huamei Wen
- College of Science, Qiongtai Normal University, Haikou, 571127, China
| | - Qin Yang
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
| | - Ning Xiao
- Guiyang Healthcare Vocational University, Guiyang, 550081, Guizhou, China
| | - Jiang Zhou
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China.
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Li SJ, Ge JK, Bao CY, Du LN, Luo FG, Zou TX. Troglonectes canlinensis sp. nov. (Teleostei: Nemacheilidae), a New Troglomorphic Loach from Guangxi, China. Animals (Basel) 2023; 13:ani13101712. [PMID: 37238142 DOI: 10.3390/ani13101712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 05/14/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
A new species of the genus Troglonectes is described based on specimens from a karst cave in Andong Town, Xincheng County, Liuzhou City, Guangxi, China. Troglonectes canlinensis sp. nov. can be distinguished from its congener species by the following combination of characteristics: eye degenerated into a black spot; whole body covered by scales, except for the head, throat, and abdomen; incomplete lateral line; forked caudal fin; 8-10 gill rakers on the first gill arch; 13-14 branched caudal fin rays; 8-9 branched dorsal fin rays; 5-6 anal fin rays; 9-10 pectoral fin rays; upper adipose keel depth mostly 1/2 of the caudal peduncle depth; and caudal fin forked.
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Affiliation(s)
- Shu-Jing Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541006, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541006, China
| | - Jia-Kai Ge
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541006, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541006, China
| | - Chun-Yan Bao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541006, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541006, China
| | - Li-Na Du
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541006, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541006, China
| | - Fu-Guang Luo
- Liuzhou Aquaculture Technology Extending Station, Liuzhou 545006, China
| | - Tong-Xiang Zou
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541006, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541006, China
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Zhao LX, Liu JH, Du LN, Luo FG. A new loach species of Troglonectes (Teleostei: Nemacheilidae) from Guangxi, China. Zool Res 2021; 42:423-427. [PMID: 34114755 PMCID: PMC8317183 DOI: 10.24272/j.issn.2095-8137.2021.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
A new species of the genus Troglonectes is described from Guangxi Zhuang Autonomous Region, China. Troglonectes hechiensissp. nov. can be easily distinguished from its congeners based on the following characters: eyes normal; whole body covered by scales except head, throat, and abdomen; lateral line incomplete; caudal fin concave; and color pattern present on body.
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Affiliation(s)
- Li-Xiao Zhao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541004, China.,Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Jia-Hui Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541004, China.,Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Li-Na Du
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541004, China.,Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin, Guangxi 541004, China. E-mail:
| | - Fu-Guang Luo
- Liuzhou Aquaculture Technology Extending Station, Liuzhou, Guangxi 545006, China. E-mail:
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