PENENTUAN STATUS PEMANFAATAN DAN SKENARIO PENGELOLAAN IKAN CAKALANG (Katsuwonus pelamis) YANG TERTANGKAP DI PERAIRAN BOLAANG-MONGONDOW SULAWESI UTARA

Kekenusa, John S.; Watung, Victor N. R.; Hatidja, Djoni

doi:10.35799/jis.14.1.2014.4882

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to [20] the level of fish resource utilization can be seen from the amount of fish production in a particular year compared to the Total Allowable Catch (TAC) or the number of catches allowed. TAC value obtained from 80% of maximum sustainable potential.…”

Section: Level Of Utilization Of K Pelamis Resourcesmentioning

confidence: 99%

Analysis of the potential and level of utilization of skipjack tuna (Katsuwonus pelamis) landed at Sadeng Coastal Fishery Port (PPP), Gunungkidul Yogyakarta, Indonesia

Suharyanto,

Yohannes Billy Wibowo,

Erick Nugraha

et al. 2024

Int. J. Sci. Res. Arch.

View full text Add to dashboard Cite

Sadeng waters are one of the distribution areas for skipjack tuna (Katsuwonus pelamis), which can be found almost every month and can even be found every day if the fishing season is right, namely February to March or September to October. Sadeng coastal Fishery Port (PPP) has a role as a center of economic activity and plays a role in developing fishing technology. Capture fisheries businesses, and other activities related to the fisheries and marine sectors. The aim of this research is to examine the potential aspects of K. pelamis resources and analyze the optimal use of K. pelamis resources. By assessing the potential of fisheries resources to determine the Maximum Sustainable Yield (MSY) value, information can be obtained on the level of utilization and level of effort. This research was carried out from February to May 2023 on a purse seiner. Sadeng Waters, Yogyakarta, Indonesia. Tools and materials used include cameras, stationery and questionnaire sheets. Primary data and secondary data collection methods use 4 (four) methods, namely observation, interview, documentation and literature study. The research results show that the level of utilization of K. pelamis in Gunungkidul Regency is experiencing overfishing conditions. The highest utilization rate occurred in 2020 at 132%. The potential fish resources in Gunungkidul Regency are the average production of K. pelamis in 2018 to 2022 of 18,122 tons. Based on analysis (MSY) and (Fopt), K. pelamis resources from 2018 to 2022 have reached over fishing. The high level of utilization of K. pelamis occurs due to a lack of supervision from the relevant agencies regarding the recording of production results from fishing vessels based at PPP Sadeng.

show abstract

Section: Level Of Utilization Of K Pelamis Resourcesmentioning

confidence: 99%

Analysis of the potential and level of utilization of skipjack tuna (Katsuwonus pelamis) landed at Sadeng Coastal Fishery Port (PPP), Gunungkidul Yogyakarta, Indonesia

Suharyanto,

Yohannes Billy Wibowo,

Erick Nugraha

et al. 2024

Int. J. Sci. Res. Arch.

View full text Add to dashboard Cite

show abstract

“…Gambar 1. Pola hubungan PDRB dengan setiap variabel Hasil scatterplot pola hubungan PDRB dengan masing-masing variabel respon pada Gambar 1 dapat dilihat bahwa titik-titik data tidak mengikuti suatu pola, jika hasil scatterplot diestimasi menggunakan regresi biasa maka kurva regresi tidak akan diketahui (Kekenusa, 2006), sehingga hubungan PDRB dengan masing-masing variabel dapat diestimasi menggunakan regresi nonparametrik.…”

Section: Hasil Dan Pembahasan Pola Hubungan Pdrb Dengan Masing-masing...unclassified

Penerapan Regresi Nonparametrik Spline dan Deret Fourier Untuk Memodelkan Produk Domestik Regional Bruto di Indonesia

Mocodompis,

Salaki,

Hatidja

2023

JIS

View full text Add to dashboard Cite

Tujuan penelitian ini adalah memodelkan PDRB (Produk Domestik Regional Bruto) di Indonesia dengan regresi nonparametrik spline dan Deret Fourier. Data yang digunakan adalah PDRB 34 Provinsi di Indonesia dengan variabel prediktor tingkat partisipasi angkatan kerja, investasi penanaman modal asing, pendapatan asli daerah, upah minimum provinsi, dan indeks pembangunan manusia. Pada regresi nonparametrik spline dilakukan penentuan titik knot yang paling optimal dengan satu sampai tiga titik, sehingga didapatkan titik knot yang paling optimal adalah dengan tiga titik knot berdasarkan nilai GCV (Generalized Cross Validation) paling minimum. Pada regresi nonparametrik Deret Fourier dilakukan perhitungan satu sampai tiga titik osilasi, didapat titik osilasi optimal adalah tiga osilasi berdasarkan nilai GCV paling minimum. Maka model regresi nonparametrik spline yang terbaik menggunakan tiga titik knot dan untuk Deret Fourier menggunakan tiga titik osilasi, dalam memodelkan PDRB di Indonesia. Kata Kunci: Deret Fourier; regresi nonparametrik; spline; titik knot

show abstract

Determining the stock status of snapper (Lutjanus sp.) using surplus production model: a case study in Banyuasin coastal waters, South Sumatra, Indonesia

Fauziyah

Purwiyanto

Agustriani

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Snapper (Lutjanus sp.) is an economically important fish for local fishermen in Banyuasin coastal water of South Sumatra. However, the current and historical stock of this species is still unknown. This study was aimed to estimate the stock status of Lutjanus sp. in the Banyuasin coastal waters. The annual catch and effort data were analyzed from 2008 to 2016. The different surplus production models were tested to obtain the best-fitted model based on the sign suitability test, model performance test, and multiple criteria analysis. The results indicated that the best-fitted model for Lutjanus sp. was the Fox model. The model had the best value for the determination coefficient (R2 = 97.2%), Nash-Sutcliffe Efficiency (-0.277), Mean Absolute Deviation (29.198), Mean Square Error (1,190.522), Root Mean Square Error (34.504), and RMSE-observations Standard Deviation Ratio (1.13), whereas the value of Mean Absolute Percentage Error (0.05) was the second-best value. The optimum effort (Eopt), maximum sustainable catch (CMSY), and total allowable catch were 22.236 trips/year, 623 ton and 498 ton/year, respectively. Based on plotting the effort and exploitation level (141%; 102%) in 2016, the stock status of Lutjanus sp. indicated depleting stock, the high fishing pressure and could encourage overfishing stock in the future.

show abstract

PENENTUAN STATUS PEMANFAATAN DAN SKENARIO PENGELOLAAN IKAN CAKALANG (Katsuwonus pelamis) YANG TERTANGKAP DI PERAIRAN BOLAANG-MONGONDOW SULAWESI UTARA

Cited by 3 publications

References 0 publications

Analysis of the potential and level of utilization of skipjack tuna (Katsuwonus pelamis) landed at Sadeng Coastal Fishery Port (PPP), Gunungkidul Yogyakarta, Indonesia

Analysis of the potential and level of utilization of skipjack tuna (Katsuwonus pelamis) landed at Sadeng Coastal Fishery Port (PPP), Gunungkidul Yogyakarta, Indonesia

Penerapan Regresi Nonparametrik Spline dan Deret Fourier Untuk Memodelkan Produk Domestik Regional Bruto di Indonesia

Determining the stock status of snapper (Lutjanus sp.) using surplus production model: a case study in Banyuasin coastal waters, South Sumatra, Indonesia

Contact Info

Product

Resources

About