Abstract:Indonesia is the largest archipelagic country in the world and has various marine resources. Fishery development is one of the priorities of East Java Province Government and the selection of the superior fishing commodities becomes important to fishery growth. The objective of this research is to select the superior fishing commodities in Southcoast of East Java Province, including eight Districts: Pacitan, Trenggalek, Tulungagung, Blitar, Malang, Lumajang, Jember, and Banyuwangi. Both Location Quotient model… Show more
“…The southern coastal ocean of Java Island (SJI, Figure 1 ) is a highly dynamic region characterized by high mesoscale eddies activity ( Azis Ismail et al., 2021 ), reversed south Java current ( Sprintall et al., 2010 ), intraseasonal equatorial Kelvin waves ( Pujiana and McPhaden, 2020 ), the Indian Ocean Dipole (IOD) onset ( Saji et al., 1999 ), and seasonal upwelling ( Susanto et al., 2001 ). The SJI is known as one of the fisheries hotspots for commercial tuna species ( Andriyono, 2018 ; Syahputra et al., 2020 ). According to Oliver et al., 2018a , Oliver et al., 2018b , the southern area off Java Island is one of the places where the intense MHWs occur in the Indonesian Seas.…”
Section: Introductionmentioning
confidence: 99%
“…Up until now, there is no detailed description of the MHWs in the SJI. Therefore, the aim of this study is to investigate the MHWs dynamics and quantify their metrics in order to provide information and guidance for fisheries management in one of the country's most significant fisheries zones ( Andriyono, 2018 ; Lumban-Gaol et al., 2021 ; Suadi and Kusano, 2019 ; Syahputra et al., 2020 ). Figure 1 Map of the study site off south of Java.…”
The frequency of marine heatwaves (MHWs) events has been rising globally in recent years, and this trend is expected to continue in the region off the coast of south Java Island. These oceanic extreme events may have the potential to devastate marine habitats, ecosystems and fisheries. This paper characterized MHWs off south Java from 1982 to 2019 using satellite-observed sea surface temperature. The aim of this study was to examine the dynamics of MHWs in one of Indonesia's most important fisheries hotspots, located in the southeast of the tropical Indian Ocean. We have identified two strong MHWs events in 1998 and 2016, both of which started in the austral winter months. Both events were lasted through the spring before dissipating in the early austral winter. These intense MHWs were likely related to a strong El Niño and decreased monsoon activity.
“…The southern coastal ocean of Java Island (SJI, Figure 1 ) is a highly dynamic region characterized by high mesoscale eddies activity ( Azis Ismail et al., 2021 ), reversed south Java current ( Sprintall et al., 2010 ), intraseasonal equatorial Kelvin waves ( Pujiana and McPhaden, 2020 ), the Indian Ocean Dipole (IOD) onset ( Saji et al., 1999 ), and seasonal upwelling ( Susanto et al., 2001 ). The SJI is known as one of the fisheries hotspots for commercial tuna species ( Andriyono, 2018 ; Syahputra et al., 2020 ). According to Oliver et al., 2018a , Oliver et al., 2018b , the southern area off Java Island is one of the places where the intense MHWs occur in the Indonesian Seas.…”
Section: Introductionmentioning
confidence: 99%
“…Up until now, there is no detailed description of the MHWs in the SJI. Therefore, the aim of this study is to investigate the MHWs dynamics and quantify their metrics in order to provide information and guidance for fisheries management in one of the country's most significant fisheries zones ( Andriyono, 2018 ; Lumban-Gaol et al., 2021 ; Suadi and Kusano, 2019 ; Syahputra et al., 2020 ). Figure 1 Map of the study site off south of Java.…”
The frequency of marine heatwaves (MHWs) events has been rising globally in recent years, and this trend is expected to continue in the region off the coast of south Java Island. These oceanic extreme events may have the potential to devastate marine habitats, ecosystems and fisheries. This paper characterized MHWs off south Java from 1982 to 2019 using satellite-observed sea surface temperature. The aim of this study was to examine the dynamics of MHWs in one of Indonesia's most important fisheries hotspots, located in the southeast of the tropical Indian Ocean. We have identified two strong MHWs events in 1998 and 2016, both of which started in the austral winter months. Both events were lasted through the spring before dissipating in the early austral winter. These intense MHWs were likely related to a strong El Niño and decreased monsoon activity.
“…Pengembangan perikanan merupakan salah satu prioritas Pemerintah Provinsi Jawa Timur. Produksi perikanan tangkap terbesar adalah ikan tuna dan cakalang yang menghasilkan nilai sebesar 484.652,43 juta rupiah setiap tahunnya (Syahputra et al, 2020).…”
Provinsi Jawa Timur memiliki potensi industri perikanan tangkap yang besar yang didukung oleh lokasi yang strategis karena berbatasan dengan Laut Jawa, Selat Bali, dan Samudera Hindia. Adanya perubahan iklim diindikasikan memberikan dampak langsung maupun tidak langsung pada perikanan tangkap. Perubahan iklim menyebabkan peningkatan suhu permukaan laut, peningkatan kejadian cuaca ekstrem dan intensitasnya, perubahan pola presipitasi, dan limpasan air tawar. Berdasarkan hal tersebut, perlu dilakukan analisis untuk mengetahui pengaruh suhu (X1), curah hujan (X2), kelembaban (X3), dan penyinaran matahari (X4) secara simultan dan secara parsial terhadap hasil produksi ikan di Provinsi Jawa Timur, Indonesia. Metode penelitian ini adalah deskriptif menggunakan analisis regresi linear berganda, Uji F dan Uji T. Hasil penelitian menunjukkan bahwa data terdistribusi normal dan tidak adanya multikolinearitas pada varibel bebas. Persamaan regresi linear yang dihasilkan yaitu y = -1775919,888 + 21619,513X1 – 160,916X2 + 30558,699X3 – 4664,191X4. Hasil Uji F menunjukkan nilai signifikan sebesar 0.049 yang berarti 0.049 < 0.05 sehingga seluruh variabel bebas berpengaruh nyata secara bersama-sama/simultan terhadap variabel dependen. Uji T menunjukkan bahwa varibel suhu (X1) dan penyinaran matahari (X4) tidak berpengaruh nyata secara parsial terhadap variabel dependen. Sedangkan varibel kelembaban (X2) dan curah hujan (X3) tidak berpengaruh nyata secara parsial terhadap variabel dependen yaitu produksi perikanan tangkap.
“…Tahun 2021, Provinsi Jawa Timur menghasilkan 534.397 ton (Statistik KKP, 2023). Produksi perikanan tangkap terbesar adalah ikan tuna dan cakalang yang menghasilkan nilai sebesar 484.652,43 juta rupiah setiap tahunnya (Syahputra et al, 2020). Tingginya produksi perikanan tangkap Provinsi Jawa Timur ini tentunya dipengaruhi oleh faktor-faktor.…”
The importance of the fisheries sector for East Java Province can be seen from the high capture fisheries production compared to other provinces di Indonesia. In 2021, East Java Province is listed as the province with the highest capture fisheries production in Indonesia. This is suspected to be affected by several factors i.e the numberi of fishermen, fishing vessels, and fishing ports, so analysis is needed to determinei the effect of these factors on capture fisheries in East Java. The aim of this studyi was to determine the effect of the amount of fishermen, fishing boats, and fishing ports on capture fisheries production in East Java. The research methodi used in this research iis descriptive using secondary data. The data analysis used is multiplei linear regression, F-test, and T-test. Based on the results, the multiple linear regression analysis were obtained by the equation y = 292.543,118 + 0,381 X1-0,722 X2 + 2.838,450 X3 with an adjusted R2 value of 72,7 %. The F test shows a isignificance <0,05, which meansi that the total number of fishermen, fishing boats, and fishing ports have a significant effecti simultaneously on capture fisheries production in East Java. The T-test shows that the numberi of fishing ports has a partially significant effect on marine capture fisheries production in East Java Province (sig. <0,05). Meanwhile, the number ofi fishermen and fishingi boats showed no partially significant effect oni capture fisheriesi production in East Java Province (sig. > 0,05).
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