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Pertumbuhan dan Kelangsungan Hidup Benih Ikan Peres (Osteochilus vittatus) Pada Beberapa Konsentrasi Vitamin C L-Ascorbyl-2-Phosphate-Magnesium (L-Ap-Mg) Cut Uliza; Irma Dewiyanti; Iwan Hasri; Zainal A. Muchlisin
Jurnal Ilmiah Mahasiswa Kelautan Perikanan Unsyiah Vol 2, No 2 (2017): April 2017
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.928 KB)

This research aim was to determine the optimum dose of vitamin C L-Ascorbyl-2-Phosphate Magnesium in the feed of peres fish (Osteochilus vittatus). The completely randomized design (CRD) with 7 treatments and three replicates were used in this study. The tested treatment is the differences dosage of vitamin C L-Ascorbyl-2-Phosphate-Magnesium (L-AP-Mg) supplemented in experimented diet containing 30% protein, the tested dosages of vitamin C were 0 (control), 50, 100, 150, 200 250, 300 mg/kg of feed. The fish were fed three times a day on 08:00, 12:00, and 17:00 pm for 60 days. The result showed the weight gain ranged between 0.28 g - 0.57 g, the specific growth rate ranged from 1.12% - 2.19% per day, daily growth rate ranged from 0.31 g / day –to 1.15 g / day, and the survival rate ranged from 76% - 97.33%. The highest values for all parameters were found at the dosage of 300 mg / kg of feed. The ANOVA test showed that the differences of vitamin C gave a significant effect on weight gain, specific growth rate, daily growth rate, feed conversion ratio, feed efficiency, and survival rate of the peres fish (P0.05). Based on the Duncan test showed that the highest weight gain, specific growth rate, daily growth rate, feed efficiency, feed conversion ratio and survival rate were found at the dosage of 300 mg / kg feed. In general, the growth of peres fish seed (O. vittatus) which were given vitamin C in their feed was higher than those that were not contained vitamin C. Penelitian ini bertujuan untuk menentukan dosis optimum vitamin C L-Ascorbyl-2-Phosphate Magnesium dalam pakan untuk benih ikan peres (Osteochilus vittatus). Metode yang digunakan pada penelitian ini adalah eksperimental dengan model Rancangan Acak Lengkap (RAL) non faktorial, dengan 7 taraf perlakuan dan masing-masing 3 kali ulangan. Faktor yang di uji adalah perbedaan dosis vitamin C jenis L-Ascorbyl-2-Phosphate-Magnesium (L-AP-Mg) dalam pakan ekperimen yang mengandung 30% protein. Perlakuan yang diuji adalah perlakuan dosis vitamin C 0, 50, 100, 150, 200 250, 300 mg/kg pakan. Pakan diberikan 3 kali sehari (08.00, 12.00, dan 17.00 WIB) selama 60 hari. Hasil penelitian menunjukkan bahwa pertambahan bobot berkisar antara 0,28 g – 0,57 g, laju pertumbuhan spesifik berkisar 1,12 % perhari – 2,19 % perhari, laju pertumbuhan harian berkisar 0,31 g/hari – 1,15 g/hari, dan tingkat kelangsungan hidup berkisar 76% - 97,33%. Nilai tertinggi untuk semua parameter yang di ukur dijumpai pada perlakuan 300 mg/kg pakan. Hasil uji ANOVA menunjukkan bahwa pemberian dosis vitamin C yang berbeda dalam pakan berpengaruh nyata terhadap pertambahan bobot, laju pertambahan spesifik, laju pertumbuhan harian, dan kelangsungan hidup benih ikan peres (P0,05). Berdasarkan hasil uji lanjut Duncan menunjukkan pertambahan bobot, laju pertambahan spesifik, laju pertumbuhan harian tertinggi dijumpai pada perlakuan dosis vitamin C 300 mg/kg pakan. Berdasarkan hasil penelitian yang telah dilakukan, pemberian dosis vitamin C dalam pakan memberikan hasil lebih baik berbanding tanpa vitamin C. Dosis vitamin C terbaik adalah 300 mg/kg pakan.

DESAIN DAN STUDI KONSTRUKSI KAPAL PURSE SEINE BERMATERIAL KAYU DIPELABUHAN PERIKANAN SAMUDERA SEMINAR NASIONAL KEMARITIMAN ACEH (UNIVERSITAS SERAMBI MEKKAH, 24 AGUSTUS 2017) 91 (PPS) LAMPULO Rizwan Rizwan; Ichsan Setiawan; Sayyid Afdhal El Rahimi; Irma Dewiyanti; Nanda Rizki Purnama; Muhammad Arif
Prosiding Seminar Nasional USM Vol 1, No 1 (2017): Prosiding Seminar Nasional USM
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (637.922 KB)

Pembangunan kapal yang ada di Provinsi Aceh pada umumnya dibangun secara tradisional, pembangunan kapal secara tradisional tersebut dinilai kurang efisien dan optimal dikarenakan parapengrajin kapal di Aceh membangun kapal tanpa memiliki desain konstruksi kapal dan belummemenuhi aturan-aturan dari Biro Klasifikasi Indonesia (BKI). Penelitian ini bertujuanmemberikan gambaran mengenai desain dan konstruksi kapal purse seine dan mengetahuipersyaratan material konstruksi kapal yang sesuai dengan Biro Klasifikasi Indonesia (BKI)sehingga pembangunan kapal di galangan tradisional Pelabuhan Perikanan Samudera (PPS)Lampulo ini menjadi lebih efisien dan optimal. Penelitian ini dilakukan pada bulan Februari sampaiMaret 2017 yang berlokasi digalangan kapal tradisional Pelabuhan Perikanan Samudera (PPS)Lampulo. Metode penelitian yang digunakan adalah studi kasus. Data penelitian diperoleh dengan 2cara yaitu data primer (pengamatan dan pengukuran terhadap kapal purse seine yang diteliti danditunjang dengan wawancara dengan pemilik dan pengrajin kapal) dan data sekunder (studiliterature dan instansi-instansi terkait). Hasil penelitian yang diperoleh menunjukan bahwa nilairasio dimensi kapal yang diteliti sudah sesuai dengan jenis alat tangkap yang digunakan. Jenis-jenismaterial kayu yang digunakan pada kapal yang diteliti sesuai dengan aturan yang ditetapkan olehBiro Klasifikasi Indonesia(BKI). Sedangkan, untuk bagian-bagian konstruksi kapal yang ditelititidak sesuai dengan aturan yang ditetapkan oleh Biro KlasifikasiIndonesia (BKI).

Ekstrak daun Avicennia marina sebagai anti jamur pada telur ikan mas, Cyprinus carpio (Avicennia marina leaf extracts as an anti fungal for common carp, Cyprinus carpio eggs) Sofyatuddin Karina; Irma Dewiyanti; Mawardah Mawardah
Depik Vol 5, No 3 (2016): December 2016
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

The objective of this research was to determine the effect and the optimum concentration of Avicennia leaf extracts on prevalence, hatching rate and hatching time of common carp eggs (Cyprinus carpio) that infected by Saprolegnia sp. The research was conducted at Balai Benih Ikan (BBI) Lukup Badak, Aceh Tengah District in June 2016. The completely randomized design was used as statistical analysis method in this study with five treatments and 4 replications. The fertilized eggs of common carp were infected by Saporolegnia sp. then treated by immersing in the extract. The treatments were the different concentrations of extract, namely; 0, 5, 10, 15 and 20 ppm. The result of ANOVA test showed that the extract Avecenia leaf extracts gave the significant effect on the prevalence, hatching rate and hatching time of common carp eggs (P0.05). The best results for all parameters were recorded at the concentration of 10 ppm. Therefore, it is concluded that the optimum concentration is 10 ppm. Penelitian ini bertujuan untuk mengetahui pengaruh dan konsentrasi optimum ekstrak daun Avicennia marina terhadap prevalensi, daya tetas serta waktu tetas telur ikan mas (Cyprinus carpio) yang terinfeksi Saprolegnia sp. Penelitian dilakukan di Balai Benih Ikan (BBI) Lukup Badak, Kab. Aceh Tengah pada bulan Juni 2016. Analisis statistik menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 taraf perlakuan dan 4 kali ulangan. Sampel yang digunakan adalah telur ikan mas yang telah terbuahi dan terinfeksi dengan jamur Saprolegnia sp. kemudian direndam dengan ekstrak. Perlakuan yang dilakukan meliputi perlakuan konsentrasi ekstrak yaitu: 0, 5, 10, 15, 20 ppm. Hasil uji ANOVA menunjukkan bahwa ekstrak daun Avicennia marina berpengaruh nyata (P0,05) terhadap prevalensi serangan jamur, daya tetas serta waktu tetas telur ikan mas. Nilai terbaik untuk semua parameter yang diukur ditemukan pada konsentrasi 10 ppm ekstrak. Oleh karena itu disimpulkan bahwa konsentrasi yang optimum untuk telur ikan mas adalah 10 ppm.

Cellulase activity of bacteria isolated from water of mangrove ecosystem in Aceh Province Irma Dewiyanti; Darmawi Darmawi; Zainal Abidin Muchlisin; Teuku Zahrial Helmi; Iko Imelda Arisa; Cut Nanda Defira; Fitriyani Fitriyani; Sawva Yura
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Cellulolytic bacteria that produce cellulase enzymes play an essential role in degrading cellulose in their habitat. The presence of cellulolytic bacteria strongly supports the fertility and productivity in mangrove waters. The objectives of the study are to analyze the activity of cellulase enzyme qualitatively through the cellulolytic index and quantitatively through the activity and specific activity of the cellulase enzyme from bacteria isolated from the water of mangrove ecosystems in Aceh Province. The qualitative experiment of enzyme activity was carried out at the Microbiology laboratory SKIPM Aceh, and a quantitative experiment of enzyme activity was conducted at the Microbiology Laboratory, Biology Department, IPB. Isolation of cellulolytic bacteria isolated from mangrove water used Carboxy Methyl Cellulose (1% CMC) selective media and carried out by spread plate method. The ability of bacteria to produce cellulase was tested qualitatively using the spot technique, this test was carried out using 1% Congo Red. Furthermore, the quantitative testing of cellulase enzymes activity adopted the DNS spectrophotometric method. The specific activity of the cellulase enzyme can be determined by using the Lowry method. There were 21 isolates that had a clear zone and had the ability to produce cellulase enzymes from 49 isolates that were successfully purified. The highest cellulolytic index (CI) produced using BAM421 isolate with the value of 5.50 was included in the high category, followed by BAM326 and BAM132 isolates, with values of 1.55 and 1.05 were categorized into the medium category. The other isolates were in the low cellulolytic index category. The isolate with the highest CI value was further tested using the quantitative enzyme activity test. The highest cellulase enzyme activity of BAM421 occurred at 24hr (0.0029 U/ml). The highest specific cellulase activity of BAM421 was at 24hr with the value of 0.210 U/mg. The result concluded that the qualitative test showed CI values can be categorized into low, medium, and high. Moreover, the value of the quantitative assay described that the cellulase enzyme and the specific enzyme activities of the bacteria were low in the study area.Keywords:Cellulolytic indexQuantitative testMangrove watersCellulase enzymeMicroorganismTRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian // TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//

Ekstrak daun Avicennia marina sebagai anti jamur pada telur ikan mas, Cyprinus carpio (Avicennia marina leaf extracts as an anti fungal for common carp, Cyprinus carpio eggs) Sofyatuddin Karina; Irma Dewiyanti; Mawardah Mawardah
Depik Vol 5, No 3 (2016): December 2016
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.5.3.5573

The objective of this research was to determine the effect and the optimum concentration of Avicennia leaf extracts on prevalence, hatching rate and hatching time of common carp eggs (Cyprinus carpio) that infected by Saprolegnia sp. The research was conducted at Balai Benih Ikan (BBI) Lukup Badak, Aceh Tengah District in June 2016. The completely randomized design was used as statistical analysis method in this study with five treatments and 4 replications. The fertilized eggs of common carp were infected by Saporolegnia sp. then treated by immersing in the extract. The treatments were the different concentrations of extract, namely; 0, 5, 10, 15 and 20 ppm. The result of ANOVA test showed that the extract Avecenia leaf extracts gave the significant effect on the prevalence, hatching rate and hatching time of common carp eggs (P0.05). The best results for all parameters were recorded at the concentration of 10 ppm. Therefore, it is concluded that the optimum concentration is 10 ppm. Penelitian ini bertujuan untuk mengetahui pengaruh dan konsentrasi optimum ekstrak daun Avicennia marina terhadap prevalensi, daya tetas serta waktu tetas telur ikan mas (Cyprinus carpio) yang terinfeksi Saprolegnia sp. Penelitian dilakukan di Balai Benih Ikan (BBI) Lukup Badak, Kab. Aceh Tengah pada bulan Juni 2016. Analisis statistik menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 taraf perlakuan dan 4 kali ulangan. Sampel yang digunakan adalah telur ikan mas yang telah terbuahi dan terinfeksi dengan jamur Saprolegnia sp. kemudian direndam dengan ekstrak. Perlakuan yang dilakukan meliputi perlakuan konsentrasi ekstrak yaitu: 0, 5, 10, 15, 20 ppm. Hasil uji ANOVA menunjukkan bahwa ekstrak daun Avicennia marina berpengaruh nyata (P0,05) terhadap prevalensi serangan jamur, daya tetas serta waktu tetas telur ikan mas. Nilai terbaik untuk semua parameter yang diukur ditemukan pada konsentrasi 10 ppm ekstrak. Oleh karena itu disimpulkan bahwa konsentrasi yang optimum untuk telur ikan mas adalah 10 ppm.

Cellulase activity of bacteria isolated from water of mangrove ecosystem in Aceh Province Irma Dewiyanti; Darmawi Darmawi; Zainal Abidin Muchlisin; Teuku Zahrial Helmi; Iko Imelda Arisa; Cut Nanda Defira; Fitriyani Fitriyani; Sawva Yura
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.22964

Cellulolytic bacteria that produce cellulase enzymes play an essential role in degrading cellulose in their habitat. The presence of cellulolytic bacteria strongly supports the fertility and productivity in mangrove waters. The objectives of the study are to analyze the activity of cellulase enzyme qualitatively through the cellulolytic index and quantitatively through the activity and specific activity of the cellulase enzyme from bacteria isolated from the water of mangrove ecosystems in Aceh Province. The qualitative experiment of enzyme activity was carried out at the Microbiology laboratory SKIPM Aceh, and a quantitative experiment of enzyme activity was conducted at the Microbiology Laboratory, Biology Department, IPB. Isolation of cellulolytic bacteria isolated from mangrove water usedCarboxy Methyl Cellulose(1% CMC) selective media and carried out by spread plate method. The ability of bacteria to produce cellulase was tested qualitatively using the spot technique, this test was carried out using 1% Congo Red. Furthermore, the quantitative testing of cellulase enzymes activity adopted the DNS spectrophotometric method. The specific activity of the cellulase enzyme can be determined by using the Lowry method. There were 21 isolates that had a clear zone and had the ability to produce cellulase enzymes from 49 isolates that were successfully purified. The highest cellulolytic index (CI) produced using BAM421 isolate with the value of 5.50 was included in the high category, followed by BAM326 and BAM132 isolates, with values of 1.55 and 1.05 were categorized into the medium category. The other isolates were in the low cellulolytic index category. The isolate with the highest CI value was further tested using the quantitative enzyme activity test. The highest cellulase enzyme activity of BAM421 occurred at 24hr (0.0029 U/ml). The highest specific cellulase activity of BAM421 was at 24hr with the value of 0.210 U/mg. The result concluded that the qualitative test showed CI values can be categorized into low, medium, and high. Moreover, the value of the quantitative assay described that the cellulase enzyme and the specific enzyme activities of the bacteria were low in the study area.Keywords:Cellulolytic indexQuantitative testMangrove watersCellulase enzymeMicroorganismTRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian// TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//

Ekstrak daun Avicennia marina sebagai anti jamur pada telur ikan mas, Cyprinus carpio (Avicennia marina leaf extracts as an anti fungal for common carp, Cyprinus carpio eggs) Sofyatuddin Karina; Irma Dewiyanti; Mawardah Mawardah
Depik Vol 5, No 3 (2016): December 2016
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.5.3.5573

The objective of this research was to determine the effect and the optimum concentration of Avicennia leaf extracts on prevalence, hatching rate and hatching time of common carp eggs (Cyprinus carpio) that infected by Saprolegnia sp. The research was conducted at Balai Benih Ikan (BBI) Lukup Badak, Aceh Tengah District in June 2016. The completely randomized design was used as statistical analysis method in this study with five treatments and 4 replications. The fertilized eggs of common carp were infected by Saporolegnia sp. then treated by immersing in the extract. The treatments were the different concentrations of extract, namely; 0, 5, 10, 15 and 20 ppm. The result of ANOVA test showed that the extract Avecenia leaf extracts gave the significant effect on the prevalence, hatching rate and hatching time of common carp eggs (P0.05). The best results for all parameters were recorded at theconcentration of 10 ppm. Therefore, it is concluded that the optimum concentration is 10 ppm. Penelitian ini bertujuan untuk mengetahui pengaruh dan konsentrasi optimum ekstrak daun Avicennia marina terhadap prevalensi, daya tetas serta waktu tetas telur ikan mas (Cyprinus carpio) yang terinfeksi Saprolegnia sp. Penelitian dilakukan di Balai Benih Ikan (BBI) Lukup Badak, Kab. Aceh Tengah pada bulan Juni 2016. Analisis statistik menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 taraf perlakuan dan 4 kali ulangan. Sampel yang digunakan adalah telur ikan mas yang telah terbuahi dan terinfeksi dengan jamur Saprolegnia sp. kemudian direndam dengan ekstrak. Perlakuan yang dilakukan meliputi perlakuan konsentrasi ekstrak yaitu: 0, 5, 10, 15, 20 ppm. Hasil uji ANOVA menunjukkan bahwa ekstrak daun Avicennia marina berpengaruh nyata (P0,05) terhadap prevalensi serangan jamur, daya tetas serta waktu tetas telur ikan mas. Nilai terbaik untuk semua parameter yang diukur ditemukan pada konsentrasi 10 ppm ekstrak. Oleh karena itu disimpulkan bahwa konsentrasi yang optimum untuk telur ikan mas adalah 10 ppm.

Cellulase activity of bacteria isolated from water of mangrove ecosystem in Aceh Province Irma Dewiyanti; Darmawi Darmawi; Zainal Abidin Muchlisin; Teuku Zahrial Helmi; Iko Imelda Arisa; Cut Nanda Defira; Fitriyani Fitriyani; Sawva Yura
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.22964

Cellulolytic bacteria that produce cellulase enzymes play an essential role in degrading cellulose in their habitat. The presence of cellulolytic bacteria strongly supports the fertility and productivity in mangrove waters. The objectives of the study are to analyze the activity of cellulase enzyme qualitatively through the cellulolytic index and quantitatively through the activity and specific activity of the cellulase enzyme from bacteria isolated from the water of mangrove ecosystems in Aceh Province. The qualitative experiment of enzyme activity was carried out at the Microbiology laboratory SKIPM Aceh, and a quantitative experiment of enzyme activity was conducted at the Microbiology Laboratory, Biology Department, IPB. Isolation of cellulolytic bacteria isolated from mangrove water usedCarboxy Methyl Cellulose(1% CMC) selective media and carried out by spread plate method. The ability of bacteria to produce cellulase was tested qualitatively using the spot technique, this test was carried out using 1% Congo Red. Furthermore, the quantitative testing of cellulase enzymes activity adopted the DNS spectrophotometric method. The specific activity of the cellulase enzyme can be determined by using the Lowry method. There were 21 isolates that had a clear zone and had the ability to produce cellulase enzymes from 49 isolates that were successfully purified. The highest cellulolytic index (CI) produced using BAM421 isolate with the value of 5.50 was included in the high category, followed by BAM326 and BAM132 isolates, with values of 1.55 and 1.05 were categorized into the medium category. The other isolates were in the low cellulolytic index category. The isolate with the highest CI value was further tested using the quantitative enzyme activity test. The highest cellulase enzyme activity of BAM421 occurred at 24hr (0.0029 U/ml). The highest specific cellulase activity of BAM421 was at 24hr with the value of 0.210 U/mg. The result concluded that the qualitative test showed CI values can be categorized into low, medium, and high. Moreover, the value of the quantitative assay described that the cellulase enzyme and the specific enzyme activities of the bacteria were low in the study area.Keywords:Cellulolytic indexQuantitative testMangrove watersCellulase enzymeMicroorganismTRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian// TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//

Implementasi Teknologi Briket Berbasis Propagul Mangrove sebagai Energi Terbarukan bagi Masyarakat Pesisir Lampulo, Banda Aceh Irma Dewiyanti; C Yulvizar; R Moulana; N Nurfadillah; C Octavina; M Ulfah; I I Arisa; M S Mubarrak; M Siregar; A Musavi; S Darma; Fikri Fikri
Jurnal Pengabdian Nasional (JPN) Indonesia Vol. 7 No. 2 (2026): Mei
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Indonesia Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63447/jpni.v7i2.1736

Mangrove Park Lampulo (MPL) Banda Aceh is a conservation area managed by Pemuda Peduli Mangrove Kutaraja (PEMANGKU), a community group. One of the main issues in this area is the large number of mangrove propagules that fall to the ground or die during the nursery stage, resulting in underutilized materials that accumulate as waste and interfere with the environment and the natural regeneration process of mangroves. On the other hand, coastal communities need environmentally friendly alternative energy sources. This community service activity aims to transfer knowledge and technology on the utilization of mangrove propagule waste as raw material for producing environmentally friendly biofuel briquettes. The methods employed include socialization, education on the potential use of propagules, the development of instruments such as a charcoal kiln, grinding tools, and briquette molding equipment, as well as training and mentoring. The results indicate an increase in knowledge and skills in managing propagule waste into charcoal briquettes. The production process involves collection, cleaning, sun drying, carbonization using a charcoal furnace, grinding the charcoal, mixing with a binder, molding, and drying for 2–3 days. The resulting briquettes have a dense texture, ignite easily, and produce stable heat. The efficiency of converting propagules into briquettes reaches 30–35%, and 5 kg of dried propagules yields approximately 4.8 kg of briquettes. This activity has the potential to support mangrove conservation, improve the local economy through briquette production, and enhance the added value of the conservation area for visitors.

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