{"title":"泰国四大水库鱼类群落现状","authors":"A. Sakset, Suwimon Seehirunwong, Chatchai Preecha","doi":"10.33997/J.AFS.2021.34.1.001","DOIUrl":null,"url":null,"abstract":"Fish assemblage status is essential information for practical fishery resource management in productive water bodies. This study aimed to assess fish assemblages’ status and provide recommendations for practical fishery management in four major reservoirs in Thailand. Night-time samples were collected between January 2015 and December 2019 using gill net with multiple mesh sizes. Results obtained through univariate and multivariate analyses showed that the Pa Sak Jolasid Reservoir had the highest number of fish species (70), while the Rajjaprabha Reservoir had the lowest number (41). Eight species were identified as in danger of extinction and six species as alien. The percentage of the index of relative importance (% IRI) showed that the major species mainly belong to the family Cyprinidae. The forage and carnivorous fish ratio (F/C ratio) showed balanced communities in all reservoirs (4.4–9.2) except the Sirikit Reservoir (1.0). The evenness index (J') (0.53–0.67) and diversity index (H') (1.86–2.38) indicated moderate diversity and distribution in all reservoirs. Catch per unit effort (CPUE) value displayed a medium abundance in the Sirikit and Ubolratana Reservoirs (614.8 and 826.0 g.100 m of gill net/night, respectively), and a high abundance in the Rajjaprabha and Pa Sak Jolasid Reservoirs (1,087.2 and 1,012.5 g.100 m of gill net/night, respectively). In the overall assessment of fish assemblage status among the reservoirs, the Pa Sak Jolasid and Rajjaprabha Reservoirs showed the most desirable condition, while the Sirikit Reservoir showed the least desirable condition. These findings suggest the need to implement various practical fishery resource management, such as banning the introduction of invasive exotic species, and establishing conservation measures for species on the list of extinction.","PeriodicalId":37296,"journal":{"name":"Asian Fisheries Science","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Status of Fish Assemblages in Four Major Reservoirs of Thailand\",\"authors\":\"A. Sakset, Suwimon Seehirunwong, Chatchai Preecha\",\"doi\":\"10.33997/J.AFS.2021.34.1.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Fish assemblage status is essential information for practical fishery resource management in productive water bodies. This study aimed to assess fish assemblages’ status and provide recommendations for practical fishery management in four major reservoirs in Thailand. Night-time samples were collected between January 2015 and December 2019 using gill net with multiple mesh sizes. Results obtained through univariate and multivariate analyses showed that the Pa Sak Jolasid Reservoir had the highest number of fish species (70), while the Rajjaprabha Reservoir had the lowest number (41). Eight species were identified as in danger of extinction and six species as alien. The percentage of the index of relative importance (% IRI) showed that the major species mainly belong to the family Cyprinidae. The forage and carnivorous fish ratio (F/C ratio) showed balanced communities in all reservoirs (4.4–9.2) except the Sirikit Reservoir (1.0). The evenness index (J') (0.53–0.67) and diversity index (H') (1.86–2.38) indicated moderate diversity and distribution in all reservoirs. Catch per unit effort (CPUE) value displayed a medium abundance in the Sirikit and Ubolratana Reservoirs (614.8 and 826.0 g.100 m of gill net/night, respectively), and a high abundance in the Rajjaprabha and Pa Sak Jolasid Reservoirs (1,087.2 and 1,012.5 g.100 m of gill net/night, respectively). In the overall assessment of fish assemblage status among the reservoirs, the Pa Sak Jolasid and Rajjaprabha Reservoirs showed the most desirable condition, while the Sirikit Reservoir showed the least desirable condition. These findings suggest the need to implement various practical fishery resource management, such as banning the introduction of invasive exotic species, and establishing conservation measures for species on the list of extinction.\",\"PeriodicalId\":37296,\"journal\":{\"name\":\"Asian Fisheries Science\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-03-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Asian Fisheries Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.33997/J.AFS.2021.34.1.001\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asian Fisheries Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33997/J.AFS.2021.34.1.001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Environmental Science","Score":null,"Total":0}
Status of Fish Assemblages in Four Major Reservoirs of Thailand
Fish assemblage status is essential information for practical fishery resource management in productive water bodies. This study aimed to assess fish assemblages’ status and provide recommendations for practical fishery management in four major reservoirs in Thailand. Night-time samples were collected between January 2015 and December 2019 using gill net with multiple mesh sizes. Results obtained through univariate and multivariate analyses showed that the Pa Sak Jolasid Reservoir had the highest number of fish species (70), while the Rajjaprabha Reservoir had the lowest number (41). Eight species were identified as in danger of extinction and six species as alien. The percentage of the index of relative importance (% IRI) showed that the major species mainly belong to the family Cyprinidae. The forage and carnivorous fish ratio (F/C ratio) showed balanced communities in all reservoirs (4.4–9.2) except the Sirikit Reservoir (1.0). The evenness index (J') (0.53–0.67) and diversity index (H') (1.86–2.38) indicated moderate diversity and distribution in all reservoirs. Catch per unit effort (CPUE) value displayed a medium abundance in the Sirikit and Ubolratana Reservoirs (614.8 and 826.0 g.100 m of gill net/night, respectively), and a high abundance in the Rajjaprabha and Pa Sak Jolasid Reservoirs (1,087.2 and 1,012.5 g.100 m of gill net/night, respectively). In the overall assessment of fish assemblage status among the reservoirs, the Pa Sak Jolasid and Rajjaprabha Reservoirs showed the most desirable condition, while the Sirikit Reservoir showed the least desirable condition. These findings suggest the need to implement various practical fishery resource management, such as banning the introduction of invasive exotic species, and establishing conservation measures for species on the list of extinction.
期刊介绍:
The Asian Fisheries Science (AFS) was first published in 1987. It is an open access SCOPUS indexed publication of the Asian Fisheries Society. Four regular issues are published annually in March, June, September and December. In addition, special issues are published on specific topics. Full texts of the articles are available for free download and there is no publication fee. The journal promotes fisheries science which has an international appeal with special focus on Asian interests.