A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique
Optimization of light-based fish passage facilities has attracted extensive attention, but studies under the influence of various environmental factors are scarce. We established a novel experimental method to measure the phototactic behavior of <i>Schizothorax waltoni</i>. The results s...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Animals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-2615/12/3/240 |
| _version_ | 1827662003086295040 |
|---|---|
| author | Jiawei Xu Wenlu Sang Huichao Dai Chenyu Lin Senfan Ke Jingqiao Mao Gang Wang Xiaotao Shi |
| author_facet | Jiawei Xu Wenlu Sang Huichao Dai Chenyu Lin Senfan Ke Jingqiao Mao Gang Wang Xiaotao Shi |
| author_sort | Jiawei Xu |
| collection | DOAJ |
| description | Optimization of light-based fish passage facilities has attracted extensive attention, but studies under the influence of various environmental factors are scarce. We established a novel experimental method to measure the phototactic behavior of <i>Schizothorax waltoni</i>. The results showed that <i>S. waltoni</i> preferred the four light colors in the order green, blue, red, and yellow. The increased flow velocity intensified the positive and negative phototaxis of fish under different light environments, while an increase in the water temperature aroused the escape behavior. The escape behavior of fish in red and yellow light and the phototaxis behavior in green and blue light intensified as the light intensity exceeded the phototaxis threshold and continued to increase. Thus, red or yellow light greater than the phototaxis threshold can be used to move fish away from high-turbulent flows or polluted waters, while green or blue light can be used to guide them to fish passage entrance or ideal habitats. This study provides scientific evidence and application value for restoring fish habitats, fish passages, and fisheries. |
| first_indexed | 2024-03-10T00:19:03Z |
| format | Article |
| id | doaj.art-86c8dd641b43452393721bdd233bb910 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T00:19:03Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-86c8dd641b43452393721bdd233bb9102023-11-23T15:46:26ZengMDPI AGAnimals2076-26152022-01-0112324010.3390/ani12030240A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling TechniqueJiawei Xu0Wenlu Sang1Huichao Dai2Chenyu Lin3Senfan Ke4Jingqiao Mao5Gang Wang6Xiaotao Shi7College of Water Conservancy and Hydropower Engineering, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaKey Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, School of Environment, Hohai University, Nanjing 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaHubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang 443002, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaHubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang 443002, ChinaOptimization of light-based fish passage facilities has attracted extensive attention, but studies under the influence of various environmental factors are scarce. We established a novel experimental method to measure the phototactic behavior of <i>Schizothorax waltoni</i>. The results showed that <i>S. waltoni</i> preferred the four light colors in the order green, blue, red, and yellow. The increased flow velocity intensified the positive and negative phototaxis of fish under different light environments, while an increase in the water temperature aroused the escape behavior. The escape behavior of fish in red and yellow light and the phototaxis behavior in green and blue light intensified as the light intensity exceeded the phototaxis threshold and continued to increase. Thus, red or yellow light greater than the phototaxis threshold can be used to move fish away from high-turbulent flows or polluted waters, while green or blue light can be used to guide them to fish passage entrance or ideal habitats. This study provides scientific evidence and application value for restoring fish habitats, fish passages, and fisheries.https://www.mdpi.com/2076-2615/12/3/240phototaxisrheotaxiswater temperaturelight environmentcommunity restoration |
| spellingShingle | Jiawei Xu Wenlu Sang Huichao Dai Chenyu Lin Senfan Ke Jingqiao Mao Gang Wang Xiaotao Shi A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique Animals phototaxis rheotaxis water temperature light environment community restoration |
| title | A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique |
| title_full | A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique |
| title_fullStr | A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique |
| title_full_unstemmed | A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique |
| title_short | A Detailed Analysis of the Effect of Different Environmental Factors on Fish Phototactic Behavior: Directional Fish Guiding and Expelling Technique |
| title_sort | detailed analysis of the effect of different environmental factors on fish phototactic behavior directional fish guiding and expelling technique |
| topic | phototaxis rheotaxis water temperature light environment community restoration |
| url | https://www.mdpi.com/2076-2615/12/3/240 |
| work_keys_str_mv | AT jiaweixu adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT wenlusang adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT huichaodai adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT chenyulin adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT senfanke adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT jingqiaomao adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT gangwang adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT xiaotaoshi adetailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT jiaweixu detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT wenlusang detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT huichaodai detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT chenyulin detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT senfanke detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT jingqiaomao detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT gangwang detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique AT xiaotaoshi detailedanalysisoftheeffectofdifferentenvironmentalfactorsonfishphototacticbehaviordirectionalfishguidingandexpellingtechnique |