Claim Missing Document
Check
Articles

Found 5 Documents
Search

Identification coral reef diatom using scanning electron microscope at Nature Reserve Pulau Sempu (NRPS), East Java El Rahimi, Sayyid Afdhal; Kryk, Adryan; Arsad, Sulastri; Luthfi, Oktiyas Muzaky; Isdianto, Andik; Luthfi, M. Azurea Bahri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.29516

Abstract

Diatom, Bacillariophyceae, has an important role in environmental support because these algae contribute to 25% of the oxygen supply globally and each year represent 40% of primary production by fixed carbon using photosynthesis. Diatom samples were obtained from 3 different sites in around NRPS. Cleaning diatoms analyzed using SEM for describe ultrastructure in diatom valves. Three dominant diatoms Cocconeidaceae and Bacillariaceae from the south Java Sea (Indian Ocean). Basic information regarding the diversity of diatoms, and the success of photoautotrophic micro-algae that can be found both in marine and freshwater habitats, is very important to describe the role of each taxon from an ecology perspective in the future. Samples are taken from the substrate of 3 stations in Nature Reserve Pulau Sempu and prepared in the laboratory for scanning electron microscopy photographs. Clear and detailed features diatom frustule of SEM photograph reveal a schild diatom (Cocconeis) and panduriform diatom (Psammodictyon) are dominating taxa in NRSP areas.Keywords:Hard coralCocconeisPsammodictyonPulau SempuDiatom
Identification coral reef diatom using scanning electron microscope at Nature Reserve Pulau Sempu (NRPS), East Java El Rahimi, Sayyid Afdhal; Kryk, Adryan; Arsad, Sulastri; Luthfi, Oktiyas Muzaky; Isdianto, Andik; Luthfi, M. Azurea Bahri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.29516

Abstract

Diatom, Bacillariophyceae, has an important role in environmental support because these algae contribute to 25% of the oxygen supply globally and each year represent 40% of primary production by fixed carbon using photosynthesis. Diatom samples were obtained from 3 different sites in around NRPS. Cleaning diatoms analyzed using SEM for describe ultrastructure in diatom valves. Three dominant diatoms Cocconeidaceae and Bacillariaceae from the south Java Sea (Indian Ocean). Basic information regarding the diversity of diatoms, and the success of photoautotrophic micro-algae that can be found both in marine and freshwater habitats, is very important to describe the role of each taxon from an ecology perspective in the future. Samples are taken from the substrate of 3 stations in Nature Reserve Pulau Sempu and prepared in the laboratory for scanning electron microscopy photographs. Clear and detailed features diatom frustule of SEM photograph reveal a schild diatom (Cocconeis) and panduriform diatom (Psammodictyon) are dominating taxa in NRSP areas.Keywords:Hard coralCocconeisPsammodictyonPulau SempuDiatom
Additional of EM4 and molasses in feeds on the growth and survival rate of snakehead (Channa striata) Dewi, Cut Dara; Maulana, Usman; El Rahimi, Sayyid Afdhal; Ismarica, Ismarica
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.1.27330

Abstract

This study aims to determine the effect of giving EM4 probiotics on the growth and survival rate of snakehead (Channa striata). This research was carried out at the Fish Hatchery Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala. This study was conducted using a Complete Randomized Design (CRD) method with 4 treatments used, namely A (control), B (EM4 6 ml/kg of feed), C (EM4 8 ml/kg of feed), and D (EM4 10 ml/kg of feed). The results showed that the addition of 10 ml/kg of feed of EM4 probiotic resulted in an absolute length growth of 1.600.17 cm, an absolute weight growth of 1.850.18 gram, a specific growth rate of 1.970.10 % per day, a feed conversion ratio of 1.560.03, feed efficiency 64.191.41 % and survival rate 97.783.85 %. The results of this study can be concluded that the addition of probiotic EM4 10 ml/kg of feed can increase the growth and survival rate of snakehead (Channa striata).Keywords:Channa striataEM4Commercial feedGrowthSurvival rate
PENGARUH SUHU PERMUKAAN LAUT TERHADAP HASIL TANGKAPAN IKAN TUNA SIRIP KUNING DI TPI IE MEULEE KOTA SABANG Marni, Putri; Affan, Junaidi M.; Setiawan, Ichsan; Yuni, Syarifah Meurah; El Rahimi, Sayyid Afdhal; Rizwan, Thaib; Isbah, Faliqul
Jurnal Kelautan dan Perikanan Indonesia Vol 4, No 1: April (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jkpi.v4i1.36718

Abstract

Perairan Kota Sabang merupakan perairan yang berbatasan langsung dengan Samudra Hindia yang memiliki potensi perikanan yang cukup besar dengan berbagai jenis ikan yang bernilai ekonomis penting salah satunya adalah ikan tuna sirip kuning (Thunnus albacares). Ikan tuna sirip kuning merupakan salah satu jenis ikan yang banyak didaratkan oleh nelayan-nelayan TPI Lhok Ie Meulee terutama pada musim barat. Penyebaran dan kelimpahan perikanan tuna, dipengaruhi oleh beberapa faktor oseanografi. Salah satunya adalah suhu permukaan laut dan faktor lingkungan perairan lainnya. Hal ini karena perubahan suhu permukaan laut dapat mengubah distribusi ikan tuna yang akan mempengaruhi penangkapan ikan. Untuk mengetahui parameter oseanografi suhu permukaan laut di perairan Indonesia secara luas, metode konvensional sangat sulit dilakukan karena membutuhkan biaya yang besar dan waktu yang lama. Hal ini mendorong penggunaan teknologi satelit untuk mengamati fenomena oseanografi, khususnya suhu permukaan laut. Produktivitas tangkapan di Perairan Pulau Sabang Sampai saat ini belum ada informasi yang jelas mengenai dampak kondisi oseanografi atau parameter perairan laut Sabang terhadap produktivitas tangkapan ikan madidihang yang didaratkan di lokasi penangkapan ikan Ie Meulee. Penelitian ini bertujuan untuk mengetahui pengaruh suhu permukaan laut terhadap jumlah hasil tangkapan Ikan Tuna Sirip Kuning (Thunnus albacares) yang didaratkan pada bulan November di TPI Lhok Ie Meulee Kota Sabang. Penelitian dilakukan pada tanggal 1 November 20 November 2022 yang bertempat di Tempat Pendaratan Ikan Ie Meulee Kota Sabang. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kuantitatif yang mana menggunakan data hasil tangkapan ikan tuna sirip kuning dan data citra satelit Aqua Modis yang kemudian dianalisis menggunakaan regresi linier sederhana. Hasil penelitian menunjukan bahwa terdapat korelasi hubungan yang signifikan suhu terhadap ikan tuna sirip kuning dimana sebesar 32,7% faktor tertangkapnya ikan tuna sirip kuning dipengaruhi oleh suhu. Didapatkan juga bahwa t hitung lebih besar daripada t tabel yang mengindikasikan bahwa variabel suhu berpengaruh nyata terhadap hasil tangkapan ikan tuna sirip kuning dengan nilai sig sebesar 0,008 dengan memperhitungkan a = 0,05 dan suhu permukaan laut tertangkapnya ikan tuna di perairan Sabang ialah di rentang rata-rata suhu 28C -29C dengan rata-rata hasil tangkapan perhari adalah 251 kg.
Additional of EM4 and molasses in feeds on the growth and survival rate of snakehead (Channa striata) Dewi, Cut Dara; Maulana, Usman; El Rahimi, Sayyid Afdhal; Ismarica, Ismarica
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.1.27330

Abstract

This study aims to determine the effect of giving EM4 probiotics on the growth and survival rate of snakehead (Channa striata). This research was carried out at the Fish Hatchery Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala. This study was conducted using a Complete Randomized Design (CRD) method with 4 treatments used, namely A (control), B (EM4 6 ml/kg of feed), C (EM4 8 ml/kg of feed), and D (EM4 10 ml/kg of feed). The results showed that the addition of 10 ml/kg of feed of EM4 probiotic resulted in an absolute length growth of 1.600.17 cm, an absolute weight growth of 1.850.18 gram, a specific growth rate of 1.970.10 % per day, a feed conversion ratio of 1.560.03, feed efficiency 64.191.41 % and survival rate 97.783.85 %. The results of this study can be concluded that the addition of probiotic EM4 10 ml/kg of feed can increase the growth and survival rate of snakehead (Channa striata).Keywords:Channa striataEM4Commercial feedGrowthSurvival rate