Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia
Highlight Research: • The bullet tuna (Auxis rochei) was identified and analysed. • The length at first maturity (Lm) of bullet tuna (Auxis rochei) was analyzed • The eligibility status of bullet tuna (Auxis rochei) has been analyzed and estimated • The LWR curve can be used to estimate age groups o...
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Faculty of Fisheries and Marine Universitas Airlangga
2021-09-01
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| Series: | Jurnal Ilmiah Perikanan dan Kelautan |
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| Online Access: | https://e-journal.unair.ac.id/JIPK/article/view/26017 |
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| author | Evron Asrial Ruly Isfatul Khasanah Fathurriadi Fathrurriadi Yasir Arapat Usma Kurniawan Hadi Lalu Achmad Tan Tilar Wangsajati Sukmaring Kalih Lalu Samsul Rizal Mita Ayu Liliyanti Erwin Rosadi Daduk Setyohadi Muhammad Junaidi Ishani Nelunika Rathnayake |
| author_facet | Evron Asrial Ruly Isfatul Khasanah Fathurriadi Fathrurriadi Yasir Arapat Usma Kurniawan Hadi Lalu Achmad Tan Tilar Wangsajati Sukmaring Kalih Lalu Samsul Rizal Mita Ayu Liliyanti Erwin Rosadi Daduk Setyohadi Muhammad Junaidi Ishani Nelunika Rathnayake |
| author_sort | Evron Asrial |
| collection | DOAJ |
| description | Highlight Research:
• The bullet tuna (Auxis rochei) was identified and analysed.
• The length at first maturity (Lm) of bullet tuna (Auxis rochei) was analyzed
• The eligibility status of bullet tuna (Auxis rochei) has been analyzed and estimated
• The LWR curve can be used to estimate age groups of fish compared to the sigmoid curve
• The CF cannot be automatically used to estimate fish worth selling
Abstract
The bullet tuna (Auxis rochei), BLT or tongkol lisong (Indonesian) is a species of neritic tuna which is one of the target fish for small scale fishers. The problem of bullet tuna fisheries was that it has reached overexploitation and the immature bullet tuna are still caught. This study aimed to assess the population dynamics of the BLT and its size composition caught by small scale fishers in the Indian Ocean, West Nusa Tenggara area was carried out in Bangko-Bangko (West Lombok), Cemplung Beach (South Sumbawa) and Tanjung Luar Fishing Port (East Lombok) between July 2019 and June 2020. The data was derived from the measurement and weighing results of 1,217 BLT collected from the respective collector traders at each sampling location. The growth pattern of BLT was isometric () which meant the ideal body shape (mesomorph) and length at first maturity (FLm) was 31.11 cm. The length-weight relationship curve showed that BLT was in an immature age group (adolescent fish). Meanwhile, the composition of BLT is worth selling (Condition Factor > 1.00), fit for catch (FLc / FLm > 1.00) and worthy of maturity (FLc > FLm), respectively 99.92%, 0.82% and 0.00%. The BLT fish composition indicates that the stocks of resources and populations do not support current sustainable fisheries management. |
| format | Article |
| id | doaj-art-11fb52ccdefd4f8e8a23fa25545893c6 |
| institution | Kabale University |
| issn | 2085-5842 2528-0759 |
| language | English |
| publishDate | 2021-09-01 |
| publisher | Faculty of Fisheries and Marine Universitas Airlangga |
| record_format | Article |
| series | Jurnal Ilmiah Perikanan dan Kelautan |
| spelling | doaj-art-11fb52ccdefd4f8e8a23fa25545893c62025-02-03T05:30:46ZengFaculty of Fisheries and Marine Universitas AirlanggaJurnal Ilmiah Perikanan dan Kelautan2085-58422528-07592021-09-0113214415510.20473/jipk.v13i2.2601721282Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, IndonesiaEvron Asrial0Ruly Isfatul Khasanah1Fathurriadi Fathrurriadi2Yasir Arapat3Usma Kurniawan Hadi4Lalu Achmad Tan Tilar Wangsajati Sukmaring Kalih5Lalu Samsul Rizal6Mita Ayu Liliyanti7Erwin Rosadi8Daduk Setyohadi9Muhammad Junaidi10Ishani Nelunika Rathnayake11Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaMarine Science Program, Faculty of Science and Technology, State Islamic University of Sunan Ampel, Surabaya, East Java. IndonesiaDepartment of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Aquaculture, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Aquaculture, Faculty of Fishery, University of 45 Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Capture Fisheries, Faculty of Fishery and Marine, University of Lambung Mangkurat, Banjarbaru, South Kalimantan. IndonesiaDepartment of Fisheries Resources Utilization and Marine, Faculty of Fishery and Marine Science, University of Brawijaya, Malang, East Java. IndonesiaDepartment of Aquaculture, Faculty of Agriculture, University of Mataram, Mataram, West Nusa Tenggara. IndonesiaDepartment of Fisheries and Aquaculture, Faculty of Fisheries & Marine Sciences and Technology, University of Ruhuna, Matara. Sri LankaHighlight Research: • The bullet tuna (Auxis rochei) was identified and analysed. • The length at first maturity (Lm) of bullet tuna (Auxis rochei) was analyzed • The eligibility status of bullet tuna (Auxis rochei) has been analyzed and estimated • The LWR curve can be used to estimate age groups of fish compared to the sigmoid curve • The CF cannot be automatically used to estimate fish worth selling Abstract The bullet tuna (Auxis rochei), BLT or tongkol lisong (Indonesian) is a species of neritic tuna which is one of the target fish for small scale fishers. The problem of bullet tuna fisheries was that it has reached overexploitation and the immature bullet tuna are still caught. This study aimed to assess the population dynamics of the BLT and its size composition caught by small scale fishers in the Indian Ocean, West Nusa Tenggara area was carried out in Bangko-Bangko (West Lombok), Cemplung Beach (South Sumbawa) and Tanjung Luar Fishing Port (East Lombok) between July 2019 and June 2020. The data was derived from the measurement and weighing results of 1,217 BLT collected from the respective collector traders at each sampling location. The growth pattern of BLT was isometric () which meant the ideal body shape (mesomorph) and length at first maturity (FLm) was 31.11 cm. The length-weight relationship curve showed that BLT was in an immature age group (adolescent fish). Meanwhile, the composition of BLT is worth selling (Condition Factor > 1.00), fit for catch (FLc / FLm > 1.00) and worthy of maturity (FLc > FLm), respectively 99.92%, 0.82% and 0.00%. The BLT fish composition indicates that the stocks of resources and populations do not support current sustainable fisheries management.https://e-journal.unair.ac.id/JIPK/article/view/26017adolescencebltmesomorphneritic |
| spellingShingle | Evron Asrial Ruly Isfatul Khasanah Fathurriadi Fathrurriadi Yasir Arapat Usma Kurniawan Hadi Lalu Achmad Tan Tilar Wangsajati Sukmaring Kalih Lalu Samsul Rizal Mita Ayu Liliyanti Erwin Rosadi Daduk Setyohadi Muhammad Junaidi Ishani Nelunika Rathnayake Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia Jurnal Ilmiah Perikanan dan Kelautan adolescence blt mesomorph neritic |
| title | Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia |
| title_full | Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia |
| title_fullStr | Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia |
| title_full_unstemmed | Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia |
| title_short | Population Dynamics of Bullet Tuna (Auxis rochei Risso 1881) from the Indian Ocean, West Nusa Tenggara, Indonesia |
| title_sort | population dynamics of bullet tuna auxis rochei risso 1881 from the indian ocean west nusa tenggara indonesia |
| topic | adolescence blt mesomorph neritic |
| url | https://e-journal.unair.ac.id/JIPK/article/view/26017 |
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