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All Journal Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA
Ramadhan, Devi Aulia
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Effects of Salinity Level on The Growth, Filtration Rate and Survival of Pearl Oyster (Pinctada maxima) Spats Ramadhan, Devi Aulia; Mukhlis, Alis; Diniariwisan, Damai
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.7057

Abstract

Pearl oysters (Pinctada maxima) are an aquaculture commodity with high economic value. Large-scale production of pearl oyster seeds remains a challenge due to low growth and survival rates. Salinity is an environmental factor that greatly influences growth, feed filtration rate and survival of bivalves. This study aims to evaluate the effect of salinity levels on the growth, survival and filtration rate of pearl oyster spat. Pearl oyster spats measuring 2.14 ± 0.77 mm (dorso-ventral) were reared for 21 days at salinities of 26, 30, 34, and 38 ppt with a single feed of Chaetoceros amami with an initial density of 20,000 cells/ml. The results showed that a salinity of 34 ppt produced the highest growth and was significantly different (p < 0.05) compared to other salinities with an absolute growth value of 6.18 ± 0.25 mm, relative growth of 288.8 ± 11.5% and the daily specific growth rate is 6.68 ± 0.15% per day. The feed filtration rate value at a salinity of 34 ppt was 126.76 ml/hour/individual with a survival rate of 94.22% where these two parameters were also significantly different compared to other salinity treatments. There is a close relationship between growth, filtration rate and survival of spat with the salinity level of the rearing medium. This research shows that salinity of 34 ppt is the optimal condition to support growth, feed filtration rate, and survival of pearl oyster spat.
Sosialisasi Pemanfaatan Lahan Pekarangan Melalui Budidaya Pertanian Organik Suliartini, Ni Wayan Sri; Maisopa, Ira; Irmayani; Ramadhan, Devi Aulia; Ali, Kesan Oktavian
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 4 (2023): Oktober-Desember 2023
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i4.6573

Abstract

Lahan pekarangan merupakan lahan yang berada pada sekitar perumahan yang dapat dimanfaatkan salah satunya sebagai tempat budidaya tanaman untuk meningkatkan kebutuhan pangan. Desa Batu Kumbung khususnya Dusun Sidekarye merupakan desa yang sebagian besar penduduknya berprofesi sebagai petani hal tersebut sesuai degan kondisi wilayahnya yang subur dan cocok sebagai lahan pertanian. Jumlah penduduk di Desa Batu Kumbung khususnya Dusun Sidekarye tidak terlalu padat hal tersebut dilihat dari masih banyaknya lahan-lahan kosong di sekitar perumahan warga setempat. Lahan pekarangan tersebut tidak dimanfaatkan dengan semestinya. Kegiatan sosialisasi ini dilakukan dengan tujuan untuk memberikan informasi dan meningkatkan pengetahuan masyarakat masyarakat Dusun Sidekarye, Desa Batu Kumbung dalam pemanfaatan lahan pekarangan yang lebih efisien dan maksimal melalui budidaya pertanian organik yang ramah lingkungan. Sosialisasi ini dilaksanakan pada tanggal 27 Juli 2023 bertempat di Aula Kantor Desa Batu Kumbung, Kecematan Lingsar. Metode sosialisai yang digunakan adalah penjelasan langsung dari narasumber kepada mitra sasaran yaitu klompok tani Dusun Sidekarye, ibu-ibu PKK, dan remaja masjid Dusun Sidekarye. Kegiatan ini terlaksana dengan baik dan efisien dilihat dari antusiasme peserta yang tinggi dalam mengikuti dan mengisi soal pretest dan postest yang berkaitan dengan tema kegiatan sosisalisasi tersebut. Hasil peningkatan pengetahuan peserta kegiatan sebesar 6,8% dari rerata nilai pretest. Pengetahuan dan pemahaman peserta kegiatan meningkat tentang pemanfaatan lahan pekarangan melalui budidaya pertanian organik.
Penyuluhan Pembesaran Benih Kerang Mutiara Pinctada Maxima Untuk Mendukung Minawisata Dan Mata Pencaharian Berlanjutan Bagi Generasi Muda Di Desa Sugian Kecamatan Sambelia, Lombok Timur Mukhlis, Alis; Abidin, Zaenal; Scabra, Andre Rachmat; Istiqomah, Santun Nur; Mayunita, Alfina Laila; Ramadhan, Devi Aulia; Auliyah, Annisah Nur
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 2 (2024): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i2.8291

Abstract

Sugian Village, Sambelia Subdistrict, East Lombok, has great potential for developing pearl oyster (Pinctada maxima) aquaculture-based marine tourism (minawisata). This community service activity aimed to provide counseling to local youth regarding pearl oyster spat rearing as a sustainable alternative livelihood. Through counseling methods involving theoretical and practical sessions, participants gained knowledge about pearl oyster aquaculture techniques, from spat rearing to grow-out. The results of the activity showed a high level of enthusiasm among the youth of Sugian Village to develop pearl oyster aquaculture business and promote it as a new marine tourism attraction. The knowledge gained from this counseling is expected to foster sustainable livelihoods and marine resource conservation in the area.
Co-Authors Ali, Kesan Oktavian Andre Rachmat Scabra Auliyah, Annisah Nur Diniariwisan, Damai Irmayani Istiqomah, Santun Nur Maisopa, Ira Mayunita, Alfina Laila Suliartini, Ni Wayan Sri Zaenal Abidin