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Feeding ecology analysis of sand lobsters (Panulirus homarus) Lubis, Amelia Sriwahyuni; Efrizal, Efrizal; Syaifullah, Syaifullah
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 1 (April, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i1.13258

This research is scheduled to take place from May to August 2022 at the Marine and Brackish Water Aquaculture Fisheries Center in West Sumatra. The method employed will be observation, which entails monitoring the eating behavior of lobsters and their feeding schedule every time food is provided within a 24-hour timeframe. Data pertaining to lobster eating behavior will be analyzed descriptively based on these observations. Throughout the research, various feeding activities of sand lobsters were documented. The observational results indicated that the lobster feeding process remained consistent. The lobster typically initiates the process by gripping the food with its claws and feet, subsequently breaking it into smaller pieces with its claws, and then placing these fragments into its mouth. As the lobster tears apart the food, the next step involves transferring it to the mouth using the nearest upper and lower jaws. In light of this research, it can be inferred that lobster feeding behavior encompasses the following steps: firstly, the lobster approaches the food after spotting it; secondly, lobsters employ their claws to grasp the food; and finally, lobsters tear and ingest the food. Lobster feeding activities are most commonly observed between 6:00 PM - 10:00 PM and 10:00 PM - 2:00 AM.Keywords: eating behavior; lobster; Lobster feeding schedule.

KAJIAN MORFOMETRIK DAN HUBUNGAN PANJANG–BERAT KERANG LOKAN (Polymesoda sp) DI SUNGAI BATANG MASANG Maldivaq, Alfira; Suparno, Suparno; Lubis, Amelia Sriwahyuni; Yuspardianto, Yuspardianto; Bukhari, Bukhari
SEMAH Jurnal Pengelolaan Sumberdaya Perairan Vol 9, No 2 (2025): SEMAH: Jurnal Pengelolaan Sumberdaya Perairan
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36355/semahjpsp.v9i2.1858

Penelitian ini bertujuan menganalisis karakteristik morfometrik dan hubungan panjang–berat kerang lokan (Polymesoda sp ) di Sungai Batang Masang, Kabupaten Agam, Sumatera Barat. Sampel dikumpulkan dari tiga lokasi, yaitu kawasan permukiman, sekitar jembatan, dan daerah muara. Parameter yang diamati meliputi panjang, lebar, dan tinggi cangkang, serta bobot tubuh. Hasil penelitian menunjukkan bahwa kerang dari stasiun muara (Stasiun III) memiliki ukuran rata-rata paling besar dengan panjang 54,39 ± 1,88 mm dan bobot 29,63 ± 1,59 g. Analisis regresi panjang–berat menunjukkan pola pertumbuhan alometrik negatif (b 3) di seluruh stasiun, yang berarti pertumbuhan panjang lebih cepat daripada penambahan bobot. Faktor lingkungan, terutama kandungan oksigen terlarut dan jenis substrat, berperan penting dalam memengaruhi pertumbuhan kerang. Kajian ini menegaskan bahwa analisis morfometrik dapat dimanfaatkan sebagai indikator biologis kondisi ekosistem estuaria sekaligus sebagai dasar dalam pengelolaan berkelanjutan sumber daya kerang lokan.

Seleksi Genetik dan Inovasi Genomik pada Ikan Nila (Oreochromis Niloticus): Kajian Sistematik Terhadap Program Pemuliaan dan Keberlanjutan Budidaya B, Vera Dewiana; Handayani, Yeni Gusti; Lubis, Amelia Sriwahyuni
Jurnal Aquaculture Indonesia Vol 5, No 1 (2025)
Publisher : Prodi Akuakultur Fakultas Perikanan Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/jai.v5i1.7770

Kemajuan teknologi genomik telah merevolusi pendekatan penelitian dan pemuliaan ikan nila (Oreochromis niloticus), yang sebelumnya berbasis fenotip menjadi lebih terarah pada informasi genetik. Penelitian ini bertujuan menelaah perkembangan, penerapan, serta efektivitas berbagai inovasi genomik dalam pemuliaan ikan nila melalui metode Systematic Literature Review (SLR) terhadap sepuluh artikel ilmiah terbitan tahun 2015–2025. Kajian ini mengidentifikasi sejumlah teknologi utama yang digunakan, termasuk Genomic Selection (GS), Genome-Wide Association Studies (GWAS), RNA Sequencing (RNA-Seq), Marker-Assisted Selection (MAS), serta teknik penyuntingan gen berbasis CRISPR/Cas9. Hasil tinjauan menunjukkan bahwa penerapan seleksi genomik mampu meningkatkan akurasi nilai pemuliaan sebesar 30–34% dibandingkan metode konvensional. Pendekatan GWAS berhasil menemukan lokus penting pada kromosom 5 dan 7 yang terkait dengan laju pertumbuhan serta efisiensi pakan. Analisis RNA-Seq mengungkap lebih dari 500 gen berbeda ekspresi yang berperan dalam mekanisme adaptasi terhadap stres salinitas, sedangkan penerapan CRISPR/Cas9 terbukti efektif menghasilkan populasi jantan tanpa penggunaan hormon sintetis. Sementara itu, program pemuliaan konvensional di Kenya dan Uganda masih menunjukkan peningkatan pertumbuhan sekitar 20% per generasi, meskipun belum sepenuhnya mengintegrasikan teknologi genomik. Secara keseluruhan, penerapan teknologi genomik berpotensi besar untuk mempercepat peningkatan produktivitas ikan nila, menjaga keberlanjutan sistem budidaya, serta memperkuat pengelolaan sumber daya perairan secara efisien dan ramah lingkungan

Ectoparasite Analysis in Vaname Shrimp in Padang Pariaman, West Sumatra, Indonesia Elfrida Elfrida; Amrona Rosida; Amelia Sriwahyuni Lubis; Abdullah Munzir; Ira Desmiati
Depik Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Ectoparasites pose a significant threat to the health and productivity of vaname shrimp (Litopenaeus vannamei) in aquaculture settings, particularly in tropical regions. This study aimed to assess the prevalence, intensity, and dominance of ectoparasites in vaname shrimp ponds in Padang Pariaman, West Sumatra, and to identify factors influencing their distribution. Sampling was conducted across five different pond stations, with each station subjected to regular water quality assessments, temperature monitoring, and parasitological examinations. Ectoparasites were identified and quantified using standard microscopic techniques to determine prevalence, intensity, and dominance. Results indicated that Station II had the highest prevalence (100%) and intensity (69) of ectoparasites, likely due to poor water quality, fluctuating temperatures, and inadequate pond management practices. In contrast, Stations I, III, IV, and V exhibited lower levels of ectoparasite infestation, with Station I having moderate prevalence (80%) and intensity (21) and the remaining stations showing relatively low infestation levels. The dominant ectoparasites identified were Epystylis sp, Zoothamnium sp, Vorticella sp, and Ichthyobodo sp, with varying levels of dominance across the stations, suggesting a correlation with environmental conditions and pond management practices. Effective management of water quality, stocking densities, and regular monitoring can help mitigate ectoparasite infestations in shrimp ponds. This research provides essential insights into sustainable shrimp aquaculture practices, emphasizing the importance of improved pond management strategies to enhance shrimp health and productivity while minimizing the impact of ectoparasites on aquaculture systems in tropical regions.

The clove oil effect on faunting time and survival rate of Oreochromis niloticus Elfrida Elfrida; Abdullah Munzir; Amelia Sriwahyuni Lubis
Depik Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.33110

To overcome excess residues and fish mortality rates during transportation, natural ingredients, namely clove oil, can be used. Compounds in clove oil are considered safe because they use natural ingredients. The purpose of this study was to determine the effectiveness of using clove oil as an anesthetic agent with different doses on the length of time of unconsciousness and survival rate of tilapia. This research was conducted from May to June 2023. This research was carried out at the Bungus Fish Seed Center, Padang, and West Sumatera. The method used in this study is the experimental method. The design used in this study was a completely randomized design (CRD) consisting of 4 treatments and 3 replications. The treatment used in this study is use of clove oil with different doses. Treatment A1 = 0.5 ml L-1 water, A2 = 1 ml L-1 water, A3 = 1.5 ml L-1 water and A4 = 2 ml L-1 water. Observations of changes in tilapia behavior and water quality were analyzed descriptively, while the length of time of stupor and survival of tilapia obtained during the study were analyzed using analysis of variance (ANOVA). To see the differences between treatments, the Duncant Multiple Range Test (DMNRT) was performed. Data is processed using the SPSS 26 program. The conclusion that can be considered in this study is that the administration of clove oil with different doses as an anesthetic has a significant effect on the longest induction time, on the length of time the fish were unconscious, the length of time the fish regained consciousness and survival rate of tilapia. In treatment A2 with a dose of 1 mL L-1 of water, it was optimal to stun tilapia for 244 minutes with a survival of 88.89%.Keywords:Clove oilFish transportationTilapia

The clove oil effect on faunting time and survival rate of Oreochromis niloticus Elfrida Elfrida; Abdullah Munzir; Amelia Sriwahyuni Lubis
Depik Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.33110

To overcome excess residues and fish mortality rates during transportation, natural ingredients, namely clove oil, can be used. Compounds in clove oil are considered safe because they use natural ingredients. The purpose of this study was to determine the effectiveness of using clove oil as an anesthetic agent with different doses on the length of time of unconsciousness and survival rate of tilapia. This research was conducted from May to June 2023. This research was carried out at the Bungus Fish Seed Center, Padang, and West Sumatera. The method used in this study is the experimental method. The design used in this study was a completely randomized design (CRD) consisting of 4 treatments and 3 replications. The treatment used in this study is use of clove oil with different doses. Treatment A1 = 0.5 ml L-1 water, A2 = 1 ml L-1 water, A3 = 1.5 ml L-1 water and A4 = 2 ml L-1 water. Observations of changes in tilapia behavior and water quality were analyzed descriptively, while the length of time of stupor and survival of tilapia obtained during the study were analyzed using analysis of variance (ANOVA). To see the differences between treatments, the Duncant Multiple Range Test (DMNRT) was performed. Data is processed using the SPSS 26 program. The conclusion that can be considered in this study is that the administration of clove oil with different doses as an anesthetic has a significant effect on the longest induction time, on the length of time the fish were unconscious, the length of time the fish regained consciousness and survival rate of tilapia. In treatment A2 with a dose of 1 mL L-1 of water, it was optimal to stun tilapia for 244 minutes with a survival of 88.89%.Keywords:Clove oilFish transportationTilapia

Utilization of local plants for fish disease control: systematic literature review Salmiati Salmiati; Ratna Sari; Muhammad Hidayatullah; Amelia Sriwahyuni Lubis; Ira Desmiati
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 2 (August, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i2.20403

Fish farming is one of the most popular activities in the community. However, a common obstacle for fish farmers is the attack of diseases that attack cultured fish. Bacterial infection is one example of a disorder that often attacks farmed fish and causes losses in fish farming. Due to side effects and drug resistance, the use of chemical drugs and antibiotics in fish has been restricted. On the other hand, efforts can be made to improve the prevention and treatment of fish diseases by the use of herbal plants. This article discusses studies on the use of herbal materials that enhance fish immunity and resistance to bacterial diseases and focuses on the types of herbal plants. The review results show that the use of herbal plants for the management and control of diseases affecting fish populations effectively shows a higher level of efficiency and poses a much lower risk to the health of aquatic organisms and can be a more economical alternative when compared to frequently used chemical drugs. Keywords: Aquaculture; Chemical; Disease; Local Plants

Pengelolaan Limbah Plastik Berbasis Ecobrik Untuk Pemberdayaan Masyarakat Dan Keberlanjutan Lingkungan Di Nagari Lawang, Kabupaten Agam Sumatera Barat : Ecobrick-Based Plastic Waste Management for Community Empowerment and Environmental Sustainability in Nagari Lawang, Agam Regency, West Sumatra Efrizal, Efrizal; Lubis, Amelia Sriwahyuni; Syaiful, Ferry Lismanto; Ulhaq, M. Teguh Dhiya
Jurnal Hilirisasi IPTEKS Vol. 9 No. 2 (2026)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v9i2.967

Indonesia is the world's second-largest contributor to plastic waste, posing a significant environmental challenge due to the extremely slow decomposition of plastic materials, which can take up to 1,000 years. The accumulation of plastic waste has serious environmental consequences, including increased pollution and degradation of ecosystem quality. Therefore, raising public awareness of sustainable waste management has become increasingly important. One practical solution to this problem is the production of ecobricks, which are easy to manufacture using simple tools and readily available materials. This community engagement program aimed to enhance environmental awareness among residents of Nagari Lawang, Agam Regency, West Sumatra, by promoting ecobricks as an innovative approach to plastic waste management and encouraging environmentally responsible behavior to create a cleaner and healthier environment. In addition to reducing plastic waste, ecobricks provide economic opportunities by transforming waste into value-added products that can support community livelihoods. The program was implemented using educational lectures and hands-on demonstrations on converting plastic waste into ecobrick-based gate structures. This participatory approach enabled community members to gain both theoretical knowledge and practical skills in plastic waste recycling. The results showed that participants developed a better understanding of the importance of maintaining environmental cleanliness and public health through proper waste segregation. Furthermore, the community successfully acquired the skills to produce ecobrick products, particularly gate structures, for both household and communal use. Overall, the program contributed to improving environmental awareness, reducing plastic waste accumulation, and empowering the local community through sustainable waste management practices.

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