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Identifikasi Jenis Tangkapan Kmn. Siliwangi Menggunakan Alat Tangkap Purse Seine Di Pelabuhan Perikanan Pantai Mayangan Wanri Sitanggang; Rifaldo Belmo Da Costa; Herning Pramudya; Daniel Candido Da Costa Soares; Maria Dyah Ayu Pitaloka
Jurnal Perikanan Unram Vol 14 No 4 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i4.1258

The Fisheries Potential in Indonesia is vast and spread across the entire waters of Indonesia, which are divided into 11 Fisheries Management Areas (FMA). This regional division aids in fishing activities, resource protection, and fisheries innovation for sustainable utilization. The Mayangan Coastal Fishing Port (CFP) in Probolinggo serves as a facilitator and provider of capture fisheries services, utilizing purse seine fishing gear. This study aims to identify the species and morphology of fish caught by purse seine at the Mayangan CFP. Based on observations and interviews, five dominant fish species were found: Indian mackerel 22% (338,8 kg), Short-bodied mackerel 12% (184,8 kg), Yellowstripe scad 18% (277,2 kg), Round scad 24% (369,6 kg), and Anchovy 24% (369,6 kg). Morphological identification showed variations in size and body shape, influenced by genetic and environmental factors. These results provide important information for effective and sustainable fisheries resource protection and management policies.

Blue carbon dynamics and mangrove extent: a case study from the IndonesiaTimor Leste Coastal ecosystem Wanri Sitanggang; Diah Permata Wijayanti; Rudhi Pribadi; Chrisna Adhi Suryono; Maria Dyah Ayu Pitaloka; Egidius Naitkakin; Daniel Candido Da Costa Soares; Herning Pramudya; Yosni Kiuk
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46912

Around 20% of mangrove forests in Indonesia are in a degraded condition, which has a negative impact on the potential for blue carbon storage. When mangroves are damaged or degraded, carbon stored in the soil and vegetation can be released back into the atmosphere as CO2, ultimately increasing greenhouse gas emissions and exacerbating climate change. Mangrove forests can store up to four times more carbon per hectare, around 8001,200 tons per hectare, than terrestrial tropical forests. This research was conducted in the Wini mangrove forest area, North Central Timor, East Nusa Tenggara (NTT) which directly borders Timor Leste. The determination of the location of the observation station was based on a map of changes in mangrove forest land use obtained from the Geospatial Information Agency. The parameters measured included organic carbon, mangrove area and sediment type. Organic carbon was analyzed using the Loss on Ignition (LOI) method, and sediment grain size was measured using a particle size analyzer. The results of the study showed that the average organic carbon stock in mangrove forests reached 570,600843,600 tons per hectare, with an average change in the area of mangrove forests from 2013 to 2023 of 181.29 hectares and the type of sediment dominated by sandy mud. This change in area is caused by the conversion of mangrove land into ponds, rice fields, and settlements.Keywords:MangroveCarbonSedimentborder Area

Blue carbon dynamics and mangrove extent: a case study from the IndonesiaTimor Leste Coastal ecosystem Wanri Sitanggang; Diah Permata Wijayanti; Rudhi Pribadi; Chrisna Adhi Suryono; Maria Dyah Ayu Pitaloka; Egidius Naitkakin; Daniel Candido Da Costa Soares; Herning Pramudya; Yosni Kiuk
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46912

Around 20% of mangrove forests in Indonesia are in a degraded condition, which has a negative impact on the potential for blue carbon storage. When mangroves are damaged or degraded, carbon stored in the soil and vegetation can be released back into the atmosphere as CO2, ultimately increasing greenhouse gas emissions and exacerbating climate change. Mangrove forests can store up to four times more carbon per hectare, around 8001,200 tons per hectare, than terrestrial tropical forests. This research was conducted in the Wini mangrove forest area, North Central Timor, East Nusa Tenggara (NTT) which directly borders Timor Leste. The determination of the location of the observation station was based on a map of changes in mangrove forest land use obtained from the Geospatial Information Agency. The parameters measured included organic carbon, mangrove area and sediment type. Organic carbon was analyzed using the Loss on Ignition (LOI) method, and sediment grain size was measured using a particle size analyzer. The results of the study showed that the average organic carbon stock in mangrove forests reached 570,600843,600 tons per hectare, with an average change in the area of mangrove forests from 2013 to 2023 of 181.29 hectares and the type of sediment dominated by sandy mud. This change in area is caused by the conversion of mangrove land into ponds, rice fields, and settlements.Keywords:MangroveCarbonSedimentborder Area

PENGARUH KOMPOSISI PAKAN BUATAN TERHADAP PERTUMBUHAN LELE SANGKURIANG Karolus Da Cruz; Yosy Gustasya; Daniel Candido Da Costa Soares
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 2, Juni 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.56821

This study aimed to determine and analyze the effects of different artificial feed formulations on the growth performance, Feed Conversion Ratio (FCR), and Survival Rate (SR) of Sangkuriang catfish (Clarias gariepinus). An experimental method was employed using a Completely Randomized Design (CRD) consisting of four treatments and three replications: Treatment A (36.37% protein), Treatment B (32.23% protein), Treatment C (27.78% protein), and Treatment D (commercial feed as the control). The experiment was conducted for 30 days at the Kupang State Agricultural Polytechnic using catfish fingerlings with an initial length of approximately 7 cm and an average weight of approximately 3.0 g, reared in 26-L containers. Statistical analysis (ANOVA, P < 0.05) revealed that different feed formulations had a highly significant effect on all observed parameters. Treatment A produced the highest absolute length growth (3.76 cm) and the most efficient feed utilization, indicated by the lowest FCR value (1.11), which was statistically comparable to the commercial feed (Treatment D). Meanwhile, Treatment D resulted in the highest absolute weight gain (7.07 g) and specific growth rate (SGR) of 4.04%. The highest survival rate was achieved in Treatment C (93.3%), whereas the lowest survival rate was observed in Treatment D (56.6%), primarily due to environmental management factors and cannibalistic behavior. This study recommends the use of local feed formulation A for catfish culture because of its superior feed efficiency (lowest FCR) and its ability to compete with commercial feed performance. In addition, periodic size grading is recommended in bucket-based culture systems to minimize cannibalism and improve survival rates.

PERBEDAAN BERAT RUMPUT LAUT (Kappaphycus alvarezii) VARIAN COKLAT DAN HIJAU MENGGUNAKAN METODE LONGLINE DI PESISIR PANTAI PASIR PANJANG, KOTA KUPANG Simplisius Vian Ney; Daniel Candido Da Costa Soares; Syaeful Anwar
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 2 (2026): Volume 11 No. 02, Juni 2026.
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i2.57661

This study aimed to analyze the differences in weight growth between brown and green variants of Kappaphycus alvarezii cultivated using the long-line method in the coastal waters of Pasir Panjang Beach, Kupang City. This experimental study was conducted in response to the need to restore seaweed cultivation productivity following the impact of Cyclone Seroja and to identify the most suitable variety for cultivation in local waters. The experimental organisms consisted of brown and green seaweed variants with a uniform initial weight of 150 g per planting point. Cultivation was carried out using the long-line method with a planting distance of 25 cm between seedlings and a maintenance period of 45 days. The main parameters observed included absolute weight gain, Specific Growth Rate (SGR), and supporting water quality parameters such as temperature, salinity, and pH. Descriptive results showed that the brown variant achieved an average final weight of 556.5 g, while the green variant reached an average final weight of 552.5 g. Inferential statistical analysis using an Independent Samples t-Test yielded a calculated t-value of 0.138 with 18 degrees of freedom (df) and a significance value (p-value) of 0.89177. Since the significance value was much higher than the 0.05 significance level (p > 0.05), the null hypothesis (H₀) was accepted. These findings indicate that there was no statistically significant difference in weight growth between the brown and green seaweed variants. In conclusion, both variants demonstrated similar adaptability and biomass growth potential under the environmental conditions of Pasir Panjang Beach. Therefore, seaweed farmers may use either variety as an equally viable cultivation option, depending on seedling availability in the field.

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