Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches
Indonesia's Ministry of Marine Affairs and Fisheries designated Fisheries Management Area 714 (FMA 714) as a tuna conservation area. Research has been conducted on the potential fishing grounds, distribution, and abundance of YFT in FMA 714. Still, a study that analyzes catch productivity and...
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Diponegoro University; Association of Indonesian Coastal Management Experts
2025-06-01
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| Series: | Ilmu Kelautan |
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| Online Access: | https://ejournal.undip.ac.id/index.php/ijms/article/view/66307 |
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| author | Muslim Tadjuddah Abu Bakar Sambah Baru Sadarun Nur Isiyana Wianti |
| author_facet | Muslim Tadjuddah Abu Bakar Sambah Baru Sadarun Nur Isiyana Wianti |
| author_sort | Muslim Tadjuddah |
| collection | DOAJ |
| description | Indonesia's Ministry of Marine Affairs and Fisheries designated Fisheries Management Area 714 (FMA 714) as a tuna conservation area. Research has been conducted on the potential fishing grounds, distribution, and abundance of YFT in FMA 714. Still, a study that analyzes catch productivity and YFT coordinates with YFT conservation area distance has never been done. The objectives of this study are to analyze the seasonal and spatial dynamics of Chl-a concentrations in FMA 714 using temporal spatial analysis with SeaDAS 9.0.1, analyze fishing productivity by season using CPUE analysis, and determine the distance of the fishing ground from the conservation area using point distance geoprocessing analysis in GIS. The data used are logbook data from YFT caught with pole and line in the form of fishing coordinates, several catches, and seasonal Chl-a concentrations from 2019-2021, and catch per unit effort to analyze fishing productivity. The results showed that the highest average Chl-a concentration in FMA 714 was dominated by the eastern monsoon, transition period II, transition period I, and the western monsoon period. Transition period II had the highest CPUE, 19.50 fish/fishing set, and the lowest CPUE was found in the eastern monsoon, 0.36 fish/fish set. The fishing area has a moderate chlorophyll-a concentration but tends to yield a high CPUE and there is a tendency for high CPUE to be relatively far from the tuna conservation area. |
| format | Article |
| id | doaj-art-67b152f9240f4167a030d4e3c166ca48 |
| institution | Kabale University |
| issn | 0853-7291 2406-7598 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Diponegoro University; Association of Indonesian Coastal Management Experts |
| record_format | Article |
| series | Ilmu Kelautan |
| spelling | doaj-art-67b152f9240f4167a030d4e3c166ca482025-08-20T03:28:50ZengDiponegoro University; Association of Indonesian Coastal Management ExpertsIlmu Kelautan0853-72912406-75982025-06-0130231132010.14710/ik.ijms.30.2.311-32026071Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) CatchesMuslim Tadjuddah0https://orcid.org/0000-0003-1724-9665Abu Bakar Sambah1Baru Sadarun2Nur Isiyana Wianti3Department of Fisheries Capture, Fisheries and Marine Science Faculty, University of Halu Oleo, IndonesiaDepartment of Fisheries Resources Utilisation, Fisheries and Marine Science Faculty, Brawijaya University, IndonesiaDepartment of Marine Sciences, Fisheries and Marine Science Faculty, University of Halu Oleo, IndonesiaDepartment of Agricultural Extension, Agricultural Faculty, University of Halu Oleo, IndonesiaIndonesia's Ministry of Marine Affairs and Fisheries designated Fisheries Management Area 714 (FMA 714) as a tuna conservation area. Research has been conducted on the potential fishing grounds, distribution, and abundance of YFT in FMA 714. Still, a study that analyzes catch productivity and YFT coordinates with YFT conservation area distance has never been done. The objectives of this study are to analyze the seasonal and spatial dynamics of Chl-a concentrations in FMA 714 using temporal spatial analysis with SeaDAS 9.0.1, analyze fishing productivity by season using CPUE analysis, and determine the distance of the fishing ground from the conservation area using point distance geoprocessing analysis in GIS. The data used are logbook data from YFT caught with pole and line in the form of fishing coordinates, several catches, and seasonal Chl-a concentrations from 2019-2021, and catch per unit effort to analyze fishing productivity. The results showed that the highest average Chl-a concentration in FMA 714 was dominated by the eastern monsoon, transition period II, transition period I, and the western monsoon period. Transition period II had the highest CPUE, 19.50 fish/fishing set, and the lowest CPUE was found in the eastern monsoon, 0.36 fish/fish set. The fishing area has a moderate chlorophyll-a concentration but tends to yield a high CPUE and there is a tendency for high CPUE to be relatively far from the tuna conservation area.https://ejournal.undip.ac.id/index.php/ijms/article/view/66307seasonal spatial chlorophyll-afma 714fishing groundsyellowfin tuna |
| spellingShingle | Muslim Tadjuddah Abu Bakar Sambah Baru Sadarun Nur Isiyana Wianti Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches Ilmu Kelautan seasonal spatial chlorophyll-a fma 714 fishing grounds yellowfin tuna |
| title | Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches |
| title_full | Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches |
| title_fullStr | Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches |
| title_full_unstemmed | Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches |
| title_short | Seasonal and Spatial Dynamics of Chlorophyll-a Concentrations in Marine Protected FMA 714 in Relation to Yellowfin Tuna (Thunnus albacares) Catches |
| title_sort | seasonal and spatial dynamics of chlorophyll a concentrations in marine protected fma 714 in relation to yellowfin tuna thunnus albacares catches |
| topic | seasonal spatial chlorophyll-a fma 714 fishing grounds yellowfin tuna |
| url | https://ejournal.undip.ac.id/index.php/ijms/article/view/66307 |
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