Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure
Age-based stock assessment of globally important species, like bigeye tuna Thunnus obesus (Lowe, 1839), is urgently required to develop appropriate management plans for fisheries sustainability. This study aimed to estimate age and growth parameters using annual increments count of sectioned-otolit...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Bogor Agricultural University
2023-04-01
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| Series: | Hayati Journal of Biosciences |
| Online Access: | https://journal.ipb.ac.id/index.php/hayati/article/view/43005 |
| _version_ | 1797828598701228032 |
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| author | Arief Wujdi Suciadi Catur Nugroho Raymon Rahmanov Zedta Hety Hartaty Masayu Rahmia Anwar Putri Fathur Rochman Prawira Atmaja Rintar Pandapotan Tampubolon Roy Kurniawan Yesika Nanda Pramurdya Bram Setyadji |
| author_facet | Arief Wujdi Suciadi Catur Nugroho Raymon Rahmanov Zedta Hety Hartaty Masayu Rahmia Anwar Putri Fathur Rochman Prawira Atmaja Rintar Pandapotan Tampubolon Roy Kurniawan Yesika Nanda Pramurdya Bram Setyadji |
| author_sort | Arief Wujdi |
| collection | DOAJ |
| description |
Age-based stock assessment of globally important species, like bigeye tuna Thunnus obesus (Lowe, 1839), is urgently required to develop appropriate management plans for fisheries sustainability. This study aimed to estimate age and growth parameters using annual increments count of sectioned-otoliths, which effectively employed for age determination of tunas. Samples were collected from Indonesian tuna longline catch landed in the Port of Benoa from March until December 2017. Multi-models were employed to obtain robust growth parameters, and Akaike Information Criterion (AIC) was relied for the best fit model selection among those evaluated. Growth band formation was validated using marginal analysis (MI), indicating that one ring is deposited yearly and slow growth peaked during July (Australian winter). The von Bertalanffy growth model was selected as the best model fitting growth parameters from raw age data, as expressed as Lt = 183.49 (1-e-0.134(t+2.991)). Large variances in growth were detected at the same age, with the oldest age of 15. Over 50% of fish in the Indonesian catch were <5 years old, that may have implications for fisheries sustainability.
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| first_indexed | 2024-04-09T13:06:53Z |
| format | Article |
| id | doaj.art-67bfa1a68bda46fd99585128242355d1 |
| institution | Directory Open Access Journal |
| issn | 1978-3019 2086-4094 |
| language | English |
| last_indexed | 2024-04-09T13:06:53Z |
| publishDate | 2023-04-01 |
| publisher | Bogor Agricultural University |
| record_format | Article |
| series | Hayati Journal of Biosciences |
| spelling | doaj.art-67bfa1a68bda46fd99585128242355d12023-05-12T14:19:41ZengBogor Agricultural UniversityHayati Journal of Biosciences1978-30192086-40942023-04-0130410.4308/hjb.30.4.670-681Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith MicrostructureArief Wujdi0Suciadi Catur Nugroho1Raymon Rahmanov Zedta2Hety Hartaty3Masayu Rahmia Anwar Putri4Fathur Rochman5Prawira Atmaja Rintar Pandapotan Tampubolon6Roy Kurniawan7Yesika Nanda Pramurdya8Bram Setyadji9Research Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong 16912, IndonesiaResearch Institute for Tuna Fisheries, Denpasar, Bali 80223, IndonesiaDepartment of Marine Science and Technology, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University (IPB), Bogor 16128, IndonesiaResearch Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong 16912, IndonesiaResearch Center for Marine and Inland Water Resources Conservation, National Research and Innovation Agency (BRIN), Cibinong 16911, IndonesiaResearch Center for Marine and Inland Water Resources Conservation, National Research and Innovation Agency (BRIN), Cibinong 16911, IndonesiaResearch Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong 16912, IndonesiaResearch Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong 16912, IndonesiaDepartment of Biology, Faculty of Mathematics and Natural Sciences, Udayana University, Badung, Bali 80361, IndonesiaResearch Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong 16912, Indonesia Age-based stock assessment of globally important species, like bigeye tuna Thunnus obesus (Lowe, 1839), is urgently required to develop appropriate management plans for fisheries sustainability. This study aimed to estimate age and growth parameters using annual increments count of sectioned-otoliths, which effectively employed for age determination of tunas. Samples were collected from Indonesian tuna longline catch landed in the Port of Benoa from March until December 2017. Multi-models were employed to obtain robust growth parameters, and Akaike Information Criterion (AIC) was relied for the best fit model selection among those evaluated. Growth band formation was validated using marginal analysis (MI), indicating that one ring is deposited yearly and slow growth peaked during July (Australian winter). The von Bertalanffy growth model was selected as the best model fitting growth parameters from raw age data, as expressed as Lt = 183.49 (1-e-0.134(t+2.991)). Large variances in growth were detected at the same age, with the oldest age of 15. Over 50% of fish in the Indonesian catch were <5 years old, that may have implications for fisheries sustainability. https://journal.ipb.ac.id/index.php/hayati/article/view/43005 |
| spellingShingle | Arief Wujdi Suciadi Catur Nugroho Raymon Rahmanov Zedta Hety Hartaty Masayu Rahmia Anwar Putri Fathur Rochman Prawira Atmaja Rintar Pandapotan Tampubolon Roy Kurniawan Yesika Nanda Pramurdya Bram Setyadji Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure Hayati Journal of Biosciences |
| title | Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure |
| title_full | Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure |
| title_fullStr | Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure |
| title_full_unstemmed | Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure |
| title_short | Age and Growth Estimation of Bigeye Tuna, Thunnus obesus (Lowe, 1839) in the Eastern Indian Ocean Deduced from Otolith Microstructure |
| title_sort | age and growth estimation of bigeye tuna thunnus obesus lowe 1839 in the eastern indian ocean deduced from otolith microstructure |
| url | https://journal.ipb.ac.id/index.php/hayati/article/view/43005 |
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