Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China
Abstract The spatial–temporal patterns of fish assemblages in lotic systems can provide useful information in developing effective conservation measures. This study aimed to explore the spatial and seasonal changes in fish assemblages and their association with environmental factors in mountain stre...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-08-01
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| Series: | Ecology and Evolution |
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| Online Access: | https://doi.org/10.1002/ece3.7917 |
| _version_ | 1819148135099793408 |
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| author | Fei Liu Pengcheng Lin Huanzhang Liu Jun Wang |
| author_facet | Fei Liu Pengcheng Lin Huanzhang Liu Jun Wang |
| author_sort | Fei Liu |
| collection | DOAJ |
| description | Abstract The spatial–temporal patterns of fish assemblages in lotic systems can provide useful information in developing effective conservation measures. This study aimed to explore the spatial and seasonal changes in fish assemblages and their association with environmental factors in mountain streams of the Ren River, southwest China. Field investigations were conducted at 18 sites during the rainy and dry seasons in 2017. A total of 1,330 individuals, belonging to three orders, eight families, 19 genera, and 21 species, were collected. Analysis of similarities (ANOSIM) showed that the structure of fish assemblages varied significantly at the spatial scale, but not at the seasonal scale. In low‐order sites, fish assemblages were mainly dominated by cold‐water and rheophilic species (e.g., Rhynchocypris oxycephalus, Scaphesthes macrolepis, Metahomaloptera omeiensis, and Gnathopogon herzensteini), while those in high‐order sites were predominated by warm‐water and eurytopic or stagnophilic species (e.g., Squalidus argentatus, Hemiculter leucisculus, and Zacco platypus). Canonical correspondence analysis (CCA) showed that the fish assemblages were structured by a combination of large‐scale landscape factors (e.g., altitude and C‐link) and small‐scale habitat features (e.g., channel width, water temperature, and depth). Among these factors, landscape had the greatest influence on fish assemblages, while local habitat variables were less important or were only significant in certain seasons. |
| first_indexed | 2024-12-22T13:40:54Z |
| format | Article |
| id | doaj.art-bb7cb439f70041a8896265ad497e5869 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-22T13:40:54Z |
| publishDate | 2021-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-bb7cb439f70041a8896265ad497e58692022-12-21T18:23:56ZengWileyEcology and Evolution2045-77582021-08-011116113231133210.1002/ece3.7917Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest ChinaFei Liu0Pengcheng Lin1Huanzhang Liu2Jun Wang3The Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of Hydrobiology Chinese Academy of Sciences Wuhan ChinaThe Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of Hydrobiology Chinese Academy of Sciences Wuhan ChinaThe Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of Hydrobiology Chinese Academy of Sciences Wuhan ChinaState Key Laboratory of Eco‐hydraulic in Northwest Arid Region of China Xi'an University of Technology Xi'an ChinaAbstract The spatial–temporal patterns of fish assemblages in lotic systems can provide useful information in developing effective conservation measures. This study aimed to explore the spatial and seasonal changes in fish assemblages and their association with environmental factors in mountain streams of the Ren River, southwest China. Field investigations were conducted at 18 sites during the rainy and dry seasons in 2017. A total of 1,330 individuals, belonging to three orders, eight families, 19 genera, and 21 species, were collected. Analysis of similarities (ANOSIM) showed that the structure of fish assemblages varied significantly at the spatial scale, but not at the seasonal scale. In low‐order sites, fish assemblages were mainly dominated by cold‐water and rheophilic species (e.g., Rhynchocypris oxycephalus, Scaphesthes macrolepis, Metahomaloptera omeiensis, and Gnathopogon herzensteini), while those in high‐order sites were predominated by warm‐water and eurytopic or stagnophilic species (e.g., Squalidus argentatus, Hemiculter leucisculus, and Zacco platypus). Canonical correspondence analysis (CCA) showed that the fish assemblages were structured by a combination of large‐scale landscape factors (e.g., altitude and C‐link) and small‐scale habitat features (e.g., channel width, water temperature, and depth). Among these factors, landscape had the greatest influence on fish assemblages, while local habitat variables were less important or were only significant in certain seasons.https://doi.org/10.1002/ece3.7917fish assemblagefish conservationmountain streamspatial–temporal changes |
| spellingShingle | Fei Liu Pengcheng Lin Huanzhang Liu Jun Wang Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China Ecology and Evolution fish assemblage fish conservation mountain stream spatial–temporal changes |
| title | Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China |
| title_full | Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China |
| title_fullStr | Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China |
| title_full_unstemmed | Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China |
| title_short | Spatial and seasonal patterns of fish assemblages in mountain streams of the Ren River, southwest China |
| title_sort | spatial and seasonal patterns of fish assemblages in mountain streams of the ren river southwest china |
| topic | fish assemblage fish conservation mountain stream spatial–temporal changes |
| url | https://doi.org/10.1002/ece3.7917 |
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