Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia
The West Pacific and the waters of Cenderawasih Bay are potential fishing grounds and part of the fishery management area (FMA) 717 of the Republic of Indonesia. Increased production demand may result in overfishing, which has led to the depletion of fish stocks. To ensure the long-term viability of...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2025
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| Online Access: | http://journalarticle.ukm.my/25702/ http://journalarticle.ukm.my/25702/1/SML%201.pdf |
| _version_ | 1848816428308758528 |
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| author | Nurdin, Erfind Taufik, Muhammad Lestari, Pratiwi Ma’mun, Asep Kembaren, Duranta D. Tirtadanu, Noegroho, Tegoeh Prihatiningsih, Panggabean, Anthony S. |
| author_facet | Nurdin, Erfind Taufik, Muhammad Lestari, Pratiwi Ma’mun, Asep Kembaren, Duranta D. Tirtadanu, Noegroho, Tegoeh Prihatiningsih, Panggabean, Anthony S. |
| author_sort | Nurdin, Erfind |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | The West Pacific and the waters of Cenderawasih Bay are potential fishing grounds and part of the fishery management area (FMA) 717 of the Republic of Indonesia. Increased production demand may result in overfishing, which has led to the depletion of fish stocks. To ensure the long-term viability of these fisheries, effective management practices are essential. This study aims to examine size distribution, growth, and population parameters that can be used as fish resource management inputs for skipjack fisheries in Cenderawasih Bay. Length-based approach was used to estimate biological parameters and the dynamics of populations as well as the stock status within data-limited fisheries. Length frequency data was used to assess the Katsuwonus pelamis fisheries condition. From January to November 2021, in all of 2,211 fish were taken samples from numerous commercial small-scale vessel units that were operating around anchor fish aggregating devices (FADs). The results showed that the exploitation rate (E) was 0.69 year1, L∞ = 96.8 cm fork length (cmFL), k= 0.38 year-1, and t0 = -0.31 year. Natural mortality (M) was 0.66 year-1, fishing mortality (F) was 1.46 year-1, and total mortality (Z) was 2.12 year-1. Overfishing condition has occurred according to the current fishing mortality rate (Fcur=1.46 year-1), which has exceeded the reference point of maximum fishing mortality (Fmax =0.76 year-1) and F40% (0.9 year-1). The growth overfishing condition was indicated based on the current selectivity of handline (Lccur=42 cm), which is smaller than the optimal selectivity of Lmax (55 cm). Some management tools, such as the regulation on minimum size of hooks and the total allowable catch (TAC) system, can be utilized to consider skipjack tuna fisheries sustainability in Cendrawasih Bay. |
| first_indexed | 2025-11-15T01:05:43Z |
| format | Article |
| id | oai:generic.eprints.org:25702 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:05:43Z |
| publishDate | 2025 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:257022025-08-06T08:13:05Z http://journalarticle.ukm.my/25702/ Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia Nurdin, Erfind Taufik, Muhammad Lestari, Pratiwi Ma’mun, Asep Kembaren, Duranta D. Tirtadanu, Noegroho, Tegoeh Prihatiningsih, Panggabean, Anthony S. The West Pacific and the waters of Cenderawasih Bay are potential fishing grounds and part of the fishery management area (FMA) 717 of the Republic of Indonesia. Increased production demand may result in overfishing, which has led to the depletion of fish stocks. To ensure the long-term viability of these fisheries, effective management practices are essential. This study aims to examine size distribution, growth, and population parameters that can be used as fish resource management inputs for skipjack fisheries in Cenderawasih Bay. Length-based approach was used to estimate biological parameters and the dynamics of populations as well as the stock status within data-limited fisheries. Length frequency data was used to assess the Katsuwonus pelamis fisheries condition. From January to November 2021, in all of 2,211 fish were taken samples from numerous commercial small-scale vessel units that were operating around anchor fish aggregating devices (FADs). The results showed that the exploitation rate (E) was 0.69 year1, L∞ = 96.8 cm fork length (cmFL), k= 0.38 year-1, and t0 = -0.31 year. Natural mortality (M) was 0.66 year-1, fishing mortality (F) was 1.46 year-1, and total mortality (Z) was 2.12 year-1. Overfishing condition has occurred according to the current fishing mortality rate (Fcur=1.46 year-1), which has exceeded the reference point of maximum fishing mortality (Fmax =0.76 year-1) and F40% (0.9 year-1). The growth overfishing condition was indicated based on the current selectivity of handline (Lccur=42 cm), which is smaller than the optimal selectivity of Lmax (55 cm). Some management tools, such as the regulation on minimum size of hooks and the total allowable catch (TAC) system, can be utilized to consider skipjack tuna fisheries sustainability in Cendrawasih Bay. Penerbit Universiti Kebangsaan Malaysia 2025 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/25702/1/SML%201.pdf Nurdin, Erfind and Taufik, Muhammad and Lestari, Pratiwi and Ma’mun, Asep and Kembaren, Duranta D. and Tirtadanu, and Noegroho, Tegoeh and Prihatiningsih, and Panggabean, Anthony S. (2025) Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia. Sains Malaysiana, 54 (5). pp. 1209-1220. ISSN 0126-6039 https://www.ukm.my/jsm/english_journals/vol54num5_2025/contentsVol54num5_2025.html |
| spellingShingle | Nurdin, Erfind Taufik, Muhammad Lestari, Pratiwi Ma’mun, Asep Kembaren, Duranta D. Tirtadanu, Noegroho, Tegoeh Prihatiningsih, Panggabean, Anthony S. Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia |
| title | Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia |
| title_full | Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia |
| title_fullStr | Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia |
| title_full_unstemmed | Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia |
| title_short | Stock status of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) using length-based assessment in Cenderawasih Bay, Indonesia |
| title_sort | stock status of skipjack tuna (katsuwonus pelamis linnaeus, 1758) using length-based assessment in cenderawasih bay, indonesia |
| url | http://journalarticle.ukm.my/25702/ http://journalarticle.ukm.my/25702/ http://journalarticle.ukm.my/25702/1/SML%201.pdf |