The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia
Highlight • Bullet tuna (Auxis rochei Risso 1810) has been identified (measured, weighed) and analyzed. • The resource status of bullet tuna has been estimated based on body shape and age group. • LWR curve is implemented to describe and express the age group of bullet tuna (immature, adult/mature,...
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Faculty of Fisheries and Marine Universitas Airlangga
2021-03-01
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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/22585 |
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| author | Evron Asrial Yasir Arapat Usma Kurniawan Hadi Lalu A.T.T.W.S Kalih Mita Ayu Liliyanti Erwin Rosadi Ruly Isfatul Khasanah Ishani Nelunika Rathnayake |
| author_facet | Evron Asrial Yasir Arapat Usma Kurniawan Hadi Lalu A.T.T.W.S Kalih Mita Ayu Liliyanti Erwin Rosadi Ruly Isfatul Khasanah Ishani Nelunika Rathnayake |
| author_sort | Evron Asrial |
| collection | DOAJ |
| description | Highlight
• Bullet tuna (Auxis rochei Risso 1810) has been identified (measured, weighed) and analyzed.
• The resource status of bullet tuna has been estimated based on body shape and age group.
• LWR curve is implemented to describe and express the age group of bullet tuna (immature, adult/mature, old)
• This study has resulted the composition and ratio of bullet tuna that is suitable to be caught, fit for consumption and worthy of maturation
Abstract
Bullet tuna (Auxis rochei Risso 1810) or tongkol lisong (Indonesian) is important for human consumption and health as well as an income source for fishers and coastal communities. Its utilization problems are over exploitation, catch domination by immature groups, and the threatened stock security of the bullet tuna (BLT). This research aimed to determine the status of the prospective parent of bullet tuna caught in the Lesser Sunda region, particularly from the Alas Strait to the Indian Ocean, West Nusa Tenggara (WNT). Meanwhile, the data were collected from July to September 2020 (2nd transitional season) at the Tanjung Luar Fishing Port, East Lombok and a dependent survey method was adopted with sampling, interview, observation, and documentation techniques. Fork length and body weight data were used to estimate the length and weight relationship, growth pattern, condition factor, fish age group, and catch worth. The primary and secondary data were processed quantitatively using several equations. The growth pattern of bullet tuna was minor allometric (b = 2.875), worth selling (K > 1.00), and the majority was adult fish or mature group. The LWR model is . This condition indicates the bullet tuna is worth catching and worth spawning, so that it is eligible to be a potential broodstock candidate to support a sustainable management of BLT fisheries. Furthermore, fishers have applied the code of conduct for responsible fisheries (CCRF) in supporting the sustainable development goals. |
| format | Article |
| id | doaj-art-8ad133dda9a24810838b9d4b84993c91 |
| institution | Kabale University |
| issn | 2085-5842 2528-0759 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Faculty of Fisheries and Marine Universitas Airlangga |
| record_format | Article |
| series | Jurnal Ilmiah Perikanan dan Kelautan |
| spelling | doaj-art-8ad133dda9a24810838b9d4b84993c912025-02-03T05:30:50ZengFaculty of Fisheries and Marine Universitas AirlanggaJurnal Ilmiah Perikanan dan Kelautan2085-58422528-07592021-03-0113111010.20473/jipk.v13i1.2258518487The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, IndonesiaEvron Asrial0Yasir Arapat1Usma Kurniawan Hadi2Lalu A.T.T.W.S Kalih3Mita Ayu Liliyanti4Erwin Rosadi5Ruly Isfatul Khasanah6Ishani Nelunika Rathnayake7Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.Department of Aquaculture, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.Department of Aquaculture, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.Department of Fisheries Resources Utilization, Faculty of Fishery and Marine, University of Lambung Mangkurat, Banjarbaru, South Kalimantan.Department of Marine Science, Faculty of Science and Technology, Islamic State University of Sunan Ampel, Surabaya, East Java.Department of Fisheries and Aquaculture, Faculty of Fisheries & Marine Sciences and Technology, University of Ruhuna, Matara.Highlight • Bullet tuna (Auxis rochei Risso 1810) has been identified (measured, weighed) and analyzed. • The resource status of bullet tuna has been estimated based on body shape and age group. • LWR curve is implemented to describe and express the age group of bullet tuna (immature, adult/mature, old) • This study has resulted the composition and ratio of bullet tuna that is suitable to be caught, fit for consumption and worthy of maturation Abstract Bullet tuna (Auxis rochei Risso 1810) or tongkol lisong (Indonesian) is important for human consumption and health as well as an income source for fishers and coastal communities. Its utilization problems are over exploitation, catch domination by immature groups, and the threatened stock security of the bullet tuna (BLT). This research aimed to determine the status of the prospective parent of bullet tuna caught in the Lesser Sunda region, particularly from the Alas Strait to the Indian Ocean, West Nusa Tenggara (WNT). Meanwhile, the data were collected from July to September 2020 (2nd transitional season) at the Tanjung Luar Fishing Port, East Lombok and a dependent survey method was adopted with sampling, interview, observation, and documentation techniques. Fork length and body weight data were used to estimate the length and weight relationship, growth pattern, condition factor, fish age group, and catch worth. The primary and secondary data were processed quantitatively using several equations. The growth pattern of bullet tuna was minor allometric (b = 2.875), worth selling (K > 1.00), and the majority was adult fish or mature group. The LWR model is . This condition indicates the bullet tuna is worth catching and worth spawning, so that it is eligible to be a potential broodstock candidate to support a sustainable management of BLT fisheries. Furthermore, fishers have applied the code of conduct for responsible fisheries (CCRF) in supporting the sustainable development goals.https://e-journal.unair.ac.id/JIPK/article/view/22585bltbroodstockmaturitytransitional season |
| spellingShingle | Evron Asrial Yasir Arapat Usma Kurniawan Hadi Lalu A.T.T.W.S Kalih Mita Ayu Liliyanti Erwin Rosadi Ruly Isfatul Khasanah Ishani Nelunika Rathnayake The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia Jurnal Ilmiah Perikanan dan Kelautan blt broodstock maturity transitional season |
| title | The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia |
| title_full | The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia |
| title_fullStr | The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia |
| title_full_unstemmed | The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia |
| title_short | The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia |
| title_sort | length weight relationship and condition factors of bullet tuna landed at the tanjung luar fishing port indonesia |
| topic | blt broodstock maturity transitional season |
| url | https://e-journal.unair.ac.id/JIPK/article/view/22585 |
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