Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management
Nile perch and Nile tilapia are major commercial species in Uganda, and thus require continuous production. However, their production is impacted by anthropogenic activities such as fishing in breeding habitats. The aim of this study was to identify and characterize Nile perch and Nile tilapia fish...
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| Format: | Article |
| Language: | English |
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The Korean Society of Fisheries and Aquatic Science
2023-04-01
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| Series: | Fisheries and Aquatic Sciences |
| Subjects: | |
| Online Access: | http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2023.e24 |
| _version_ | 1797830440391802880 |
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| author | Rebecca Walugembe Nambi Abebe Getahun Fredrick Jones Muyodi John Peter Obubu |
| author_facet | Rebecca Walugembe Nambi Abebe Getahun Fredrick Jones Muyodi John Peter Obubu |
| author_sort | Rebecca Walugembe Nambi |
| collection | DOAJ |
| description | Nile perch and Nile tilapia are major commercial species in Uganda, and thus require continuous production. However, their production is impacted by anthropogenic activities such as fishing in breeding habitats. The aim of this study was to identify and characterize Nile perch and Nile tilapia fish breeding habitats on Lake Kyoga. Water quality, lake bottom, fish and vegetation type samples were collected from 20 sites in April of 2021 and 2022. Key informant interviews were conducted with experienced fishermen at five fish landing sites. The water quality parameters indicated significant difference within the sites using analysis of variance. Sandy and muddy bottom types were equally spread at 40% each by use of a pie chart. Fish gonads showed no significant difference among the 20 sites. Bivariate correlation analysis of the vegetation types indicated a strong negative correlation with Nile perch while Nile tilapia had a positive correlation. Principal component analysis of the water quality, fish gonads and habitat vegetation components cumulatively contributed 82.5% in characterizing a fish breeding habitat. Four sites for Nile perch and four sites for Nile tilapia were characterized as breeding sites on Lake Kyoga and are recommended for mapping and gazettement as breeding habitats for sustainable fisheries management. |
| first_indexed | 2024-04-09T13:36:05Z |
| format | Article |
| id | doaj.art-696a5ecc5e68432a92215d929f3db76e |
| institution | Directory Open Access Journal |
| issn | 2234-1757 |
| language | English |
| last_indexed | 2024-04-09T13:36:05Z |
| publishDate | 2023-04-01 |
| publisher | The Korean Society of Fisheries and Aquatic Science |
| record_format | Article |
| series | Fisheries and Aquatic Sciences |
| spelling | doaj.art-696a5ecc5e68432a92215d929f3db76e2023-05-09T08:17:05ZengThe Korean Society of Fisheries and Aquatic ScienceFisheries and Aquatic Sciences2234-17572023-04-0126428229310.47853/FAS.2023.e24Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries managementRebecca Walugembe Nambi0Abebe Getahun1Fredrick Jones Muyodi2John Peter Obubu3Africa Center of Excellence for Water Management, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, EthiopiaDepartment of Zoological Sciences, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, EthiopiaDepartment of Zoology, Entomology and Fisheries Sciences, College of Natural Sciences, Makerere University, Kampala 7062, UgandaAfrica Center of Excellence for Water Management, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, EthiopiaNile perch and Nile tilapia are major commercial species in Uganda, and thus require continuous production. However, their production is impacted by anthropogenic activities such as fishing in breeding habitats. The aim of this study was to identify and characterize Nile perch and Nile tilapia fish breeding habitats on Lake Kyoga. Water quality, lake bottom, fish and vegetation type samples were collected from 20 sites in April of 2021 and 2022. Key informant interviews were conducted with experienced fishermen at five fish landing sites. The water quality parameters indicated significant difference within the sites using analysis of variance. Sandy and muddy bottom types were equally spread at 40% each by use of a pie chart. Fish gonads showed no significant difference among the 20 sites. Bivariate correlation analysis of the vegetation types indicated a strong negative correlation with Nile perch while Nile tilapia had a positive correlation. Principal component analysis of the water quality, fish gonads and habitat vegetation components cumulatively contributed 82.5% in characterizing a fish breeding habitat. Four sites for Nile perch and four sites for Nile tilapia were characterized as breeding sites on Lake Kyoga and are recommended for mapping and gazettement as breeding habitats for sustainable fisheries management. http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2023.e24Lake KyogaManagementNile perchNile tilapia |
| spellingShingle | Rebecca Walugembe Nambi Abebe Getahun Fredrick Jones Muyodi John Peter Obubu Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management Fisheries and Aquatic Sciences Lake Kyoga Management Nile perch Nile tilapia |
| title | Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management |
| title_full | Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management |
| title_fullStr | Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management |
| title_full_unstemmed | Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management |
| title_short | Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management |
| title_sort | identification and characterization of fish breeding habitats on lake kyoga as an approach to sustainable fisheries management |
| topic | Lake Kyoga Management Nile perch Nile tilapia |
| url | http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2023.e24 |
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