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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Kelautan dan Perikanan Indonesia
El Rahimi, Sayyid Afdhal
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Immunology & microbiology Social Sciences Veterinary

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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 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 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.
EFFECTS OF RED YAM FLOUR (Ipomoea batatas L.) ON THE GROWTH, SURVIVAL RATE AND SKIN COLOR OF GOLDFISH (Carassius auratus) Putra, Dedi Fazriansyah; Armaya, Lia; El Rahimi, Sayyid Afdhal; Othman, Norhayati
BIOTROPIA Vol. 26 No. 2 (2019): BIOTROPIA Vol. 26 No. 2 August 2019
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.99 KB) | DOI: 10.11598/btb.2019.26.2.1036

Abstract

The best quality goldfish requires a good environment and a highly nutritious feed. Thus, this study evaluated the effects of commercial diets supplemented with 0%, 3%, 6%, 9% and 12% red yam flour (Ipomoea batatas L.) on the growth rate, survival rate and skin color of the goldfish Carrasius auratus. A completely randomized experimental design with five treatments and three replicates was used. Seventy-five goldfishes with an average initial length of 4.4 cm were fed the supplemented commercial diets for twenty-eight days inside fifteen experimental tanks. The results showed that the 9% dietary treatment significantly affected the skin color of the goldfishes but not their growth and survival rates (P > 0.05). Hence, the administration of 9% concentrated red yam flour was a suitable dietary supplement to improve skin pigmentation, an important characteristic of aquarium fishes.
Description scleractinian coral from Miang Island, East Kalimantan Rosdianto, Rosdianto; El Rahimi, Sayyid Afdhal; Kryk, Adrian; Arsad, Sulastri; Luthfi, Oktiyas Muzaky; Luthfi, M Azurea Bahri
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.29277

Abstract

The exact number of coral species in Indonesia is not unclear yet, in 2002 the coral taxonomist, JEN Veron, stated 590 species, and it was supported by an Indonesian coral taxonomist, Suharsono, eight years later. The current coral species data is 605 but it is from Coral Triangle Region area (CT). The eastern of Indonesia, which is located in the Coral Triangle Region, has received a lot of attention from coral researchers, due to coral species that have been described. On the other hand, the coral reef from the western part of Indonesia, including in the East Kalimantan, has not been explored much in recent times. Through the ecoregion view, E. Kalimantan region is clustered into ecoregion 43 (Sulu Sea) which has 540 coral species. Miang Island is one of the inhabited islands from E. Kalimantan, and has an unexplored coral reef ecosystem. The method had been used in this research is descriptive, which uses photos of live corals to describe colony characteristics corals. The results of the study have described 36 species of coral and several invertebrates that make up coral reefs on Miang Island.Keywords:Hard coralAcroporaPoritesIdentificationPulau Miang
The prevalence and intensity of ectoparasites that infects tilapia (Oreochromis niloticus) in floating net cages Melanie, Kavinta; El Rahimi, Sayyid Afdhal; Suryani, Amaliah; Mellisa, Siska; Djamani, Rianjuanda; Aprilla, Ratna Mutia
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.23310

Abstract

Ectoparasites which often attack tilapia include Trichodina sp., Dactylogyrus spp., Gyrodactylus spp., and Epistylis spp. This research aims to determine the types, prevalence, and intensity of ectoparasites found on tilapia (Oreochromis niloticus) in the floating net cages of Batanghari River, Jambi. The research was conducted from February through March 2020. A survey method is carried out through direct sampling at the study site to identify the tilapia ectoparasites. The sampling technique is done using random sampling. Ninety fish were taken for parasite inspection at the Fish Quarantine, Quality Control, and Safety of Fishery Products Class I Jambi Station. The observations found three types of ectoparasites namely Dactylogyrus sp., Epistylis sp., and Oodinium sp. The highest ectoparasite prevalence rate was found from the species Epistylis sp. with a value of 37.7% and an intensity value of 24.7 ind/fish. The prevalence of Dactylogyrus sp. was 26.6% and an intensity value of 1.3 ind/fish. The lowest prevalence value was from Oodinium sp. with a prevalence value of 7.7% and an intensity value of 3.2 ind/fish. The prevalence and intensity values of tilapia ectoparasites based on their locations were 56.6% and 23 ind/fish (station I), 50% and 18.6 ind/fish (station II) and 43.3% and 17.6 ind/fish (station III). The types of ectoparasites found on tilapia in this study were Epistylis sp., Oodinium sp., and Dactilogyrus sp. The parasite with the highest prevalence and intensity found during the survey was Epistylis sp.Keywords:EctoparasitesTilapiaPrevalenceIntensityFloating net cages
Effect of adding -glucan in feed on the growth rate of White Snapper (Lates calcarifer) fingerling Perdana, Adli Waliul; Mellisa, Siska; Hotmartupa Siahaan, Jadi Yakin; Arisa, Iko Imelda; El Rahimi, Sayyid Afdhal; Nur, Firman M.; Maulida, Siti
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.23361

Abstract

White snapper Lates calcarifer is one of the marine fish commodities that has important economic value. The addition of immunostimulant ingredients in feed is believed to increase immunity and increase fish growth. This study aims to determine the effect of adding -glucan to feed on white snapper (Lates calcarifer). This study used a completely randomized design (CRD) consisting of 5 treatments with 3 repetitions. White snapper used with a weight of 6 grams and a length of 7. The frequency of feeding is done 3 times a day. The results of the ANOVA test showed that the addition of -glucan in the feed significantly affected the growth rate of the fry of white snapper (Lates calcarifer) (P0.05). The best treatment in this study was treatment E (commercial feed + -glucan 8g/kg feed) which gave the best growth in White snapper where this treatment was able to increase absolute weight (4.51 0.29), absolute length (4 .84 0.284), specific growth rate (2.09 0.15), FCR (1.00 1.00), feed utilization efficiency (97.42 0.50) and survival (100.00 0.00).
Macrobenthos as an indicator of water quality assessment in Kutaraja Fishing Port, Indonesia Chaliluddin, Makwiyah A; Yusnita, Shella; Rizwan, Thaib; El Rahimi, Sayyid Afdhal; Rusydi, Ichsan; Nellyana, Roesa
Depik Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.1.25365

Abstract

Water quality is influenced by the high activity in the port area, resulting in decreasing water quality. The biological parameters based on the structure of the aquatic community of organisms that act as bioindicators could be indicated as changes in water quality around the port. Bioindicators are a group of living organisms susceptible to environmental changes due to human activities and natural damage. One of the aquatic organisms that can be used as an indicator of water quality is Benthos because of its sedentary nature. This study aims to determine the quality of the water environment seen from the benthic community structure, namely density, diversity index, uniformity and dominance index, to embody the clean and pollution-free Kutaraja Fishing Port. The research shows that the aquatic environment of Kutaraja Fishing Port is included as the less stable category with a moderate diversity value (H' 1) but has high benthic individual uniformity (E 0.6), which means that individuals are evenly distributed a low dominance value or C is close to 0.Keywords:Water qualityBio-indicatorBenthosKutarajaBanda Aceh
Determine the fishing season of scad (Decapterus sp.) landed at Pusong Fish Landing Base, Lhokseumawe, Indonesia Rahmah, Alvi; Zani, Salsadira Dwi; Chaliluddin, Makwiyah A; Muhammadar, A A; El Rahimi, Sayyid Afdhal
Depik Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.1.24739

Abstract

The scad (Decapterus sp.) is one species commonly caught using purse seine and landed at the Pusong Fish Landing Base, Lhokseumawe, Aceh. The fishermen at this site do not have accurate knowledge about the fishing season of the scad, which leads them to miss out on peak fish catching season and increases the ambiguity about the fish landing data. The goal of this research is to compute the trend of Catch Per Unit Effort (CPUE) for scad fisheries over the last five years (2013-2017) and to examine the fishing season trends of scad landed at Pusong fish landing base. This study took place at the Pusong Fish Landing Base in August 2020. The moving average approach was used to process catch data from 2013 to 2017. Primary and secondary data about scad production and number of fishing trips were used to compile the research findings. The results showed that the CPUE for purse seine catch landed at Pusong Fish Landing Base varies from year to year. The highest CPUE value was recorded in 2015 with 442,534 kg/trip, and the lowest was in 2013 with a value of 27,674 kg/trip. The fishing season index for Scad (Decapterus sp.) has a high rating, indicating that this fish species can be caught all year. Based on the fishing season identification criteria, the fishing season index value greater than 100% indicates the peak season. Results from this research indicate that the peak season for scad landed at Pusong Fish Landing Base occurs in July, August, September, October, and November, with their index values of 151%, 146%, 119%, 122%, and 126% respectively. A fishing season index score of less than 100% indicates low season, this was recorded for January, February, March, April, May, June, and December (48%, 97%, 57%, 90%, 62%, 86% and 97%).Keywords:ScadFishing Season IndexCPUE
Fishing season of large pelagic fish in Idi Rayeuk waters, East Aceh, Indonesia Chaliluddin, M.A.; Alfita, Rizka; Rizwan, Thaib; Rizqi, Rahmat; Rahayu, Rosi; El Rahimi, Sayyid Afdhal; Rusydi, Ichsan
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.21203

Abstract

Large pelagic fish live on the water surface in groups. Skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares), mackerel tuna (Euthynnus affinis), mackerel (Scomberomous guttatus) are species of fishes that mainly catches by fishermen using purse seines. This study aims to determine the length and weight of large pelagic fish in the water of Idi Rayeuk and best the fishing season. This research was conducted in one month. Fish samples were collected from fishermen that used purse seine and landed their catches at the Idi Rayeuk Fishing Port, East Aceh. Additionally, the data was derived from the fishing port time-series during 2015 to 2019. The result showed that the yellowfin tuna (Thunnus albacares) has a length between 37 - 58 cm with a weight of 1.0 - 3.2 kg, skipjack tuna (Katsuwonus pelamis) 32 - 58 cm in length and weight 0.5 - 3.0 kg, mackerel tuna has 33 - 54 cm of length with a weight of 0.6 - 2.5 kg, and mackerel has 44 - 66 cm of length and weighing 0.7 - 1.7 kg. Its also found that the peak season for catching yellowfin tuna (Thunnus albacares) and mackerel tuna is May and June, and the lowest season in December for the yellowfin tuna, and December and January for the mackerel tuna. The peak season for skipjack fishing occurs in May, August, and October, and the low season occurs in November and December. Meanwhile, the peak season for fishing mackerel occurs in May, September, and October, while the low season occurs in January, February, and March.Keywords:Fishing seasonLarge pelagicPurse seineIdi RayeukAceh
Co-Authors Alfita, Rizka Alvi Rahmah Andik Isdianto Armaya, Lia Arsad, Sulastri Chaliluddin, M.A. Chaliluddin, Makwiyah A Dewi, Cut Dara Djamani, Rianjuanda Faliqul Isbah Fazillah, Muhammad Rizki Hotmartupa Siahaan, Jadi Yakin Ichsan Setiawan Iko imelda arisa, Iko imelda Ismarica, Ismarica Junaidi M. Affan Kavinta Melanie Kryk, Adrian Kryk, Adryan Luthfi, M Azurea Bahri Luthfi, M. Azurea Bahri Mahlil, Saiful Maria Ulfah Marni, Putri Maulida, Siti Muhammad Nasir Muhammadar, A A Nellyana, Roesa Norhayati Othman, Norhayati Nur, Firman M. oktiyas muzaky Luthfi, oktiyas muzaky Perdana, Adli Waliul Putra, Dedi Fazriansyah Rahayu, Rosi Ratna Mutia Aprilla Razeky, Muammar Mirza Rizqi, Rahmat Rosdianto Rosdianto, Rosdianto Rusydi, Ichsan Siska Mellisa Suryani, Amaliah Syahrul Purnawan Thaib Rizwan, Thaib Usman Maulana, Usman Yuni, Syarifah Meurah Yusnita, Shella Zani, Salsadira Dwi