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Ismail, Irwan
Politeknik Perikanan Negeri Tual
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Bioakumulasi Logam Berat Merkuri (Hg) Pada Mangrove Jenis Rhizophora Mucronata Di Teluk Kayeli Kabupaten Buru Ismail, Irwan; Mangesa, Rosita; Irsan, Irsan
BIOSEL (Biology Science and Education): Jurnal Penelitian Science dan Pendidikan Vol 9, No 2 (2020): BIOSEL (Biology Science and Education): Jurnal Penelitian Science dan Pendidikan
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.915 KB) | DOI: 10.33477/bs.v9i2.1630

Abstract

Kayeli Bay is a water in Buru Regency which has very important value in terms of ecological and economic functions. During its development, the ecosystem in Kayeli Bay bears the burden of pollution, especially heavy metal mercury as a result of the people's gold mining on Buru Island which uses Hg to get pure gold. Hg can accumulate in the environment, especially deposited in the sediments in Kayeli Bay waters. Mangrove plants that generally grow in estuary and coastal environments are a place for sediment accumulation. This plant has the ability to absorb and accumulate heavy metals, one of which is R. mucronata. This study aims to analyze the concentration of heavy metal Hg in mangroves of R. mucronata and sediments, and to analyze the bioaccumulation of heavy metal Hg in R. mucronata in Kayeli Bay, Buru Regency. Samples were taken from 3 stations, namely the Anahoni River Estuary (Station I), the Wailata River Estuary (II Station) and the Waeapo River Estuary (III Station). Each station has 2 sampling points (replicates). Determination of the concentration of Hg metal in the sample using the CV-AAS method. The average value of Hg concentration in the roots was higher than the bark and leaves of the mangrove R. mucronata, but the concentration was lower than the sediment and was still below the critical value of Hg for plants. The average value of sediment Hg concentration is still below the sediment quality standard. In this study, R. mucronata mangroves were excluder and phytostabilized, where there was a limitation on the absorption of heavy metal Hg from water and sediment and the most Hg accumulation was found in the roots. Keywords: Bioaccumulation, Mercury, Rhizophora mucronata, Kayeli Bay
Model Struktural dalam Menilai Hubungan Antara Faktor Internal dan Faktor Eksternal terhadap Prestasi Belajar Agama Islam Darwin Darwin; Irwan Ismail
JUSTE (Journal of Science and Technology) Vol. 1 No. 2 (2021): JUSTE
Publisher : LLDIKTI WIlayah XII Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1283.041 KB) | DOI: 10.51135/justevol1issue2page109-118

Abstract

Penelitian ini bertujuan untuk (1) memperoleh informasi akurat tentang kecerdasan emosional dan perilaku belajar (faktor internal) siswa SMK Muhammadiyah Ambon; (2) memperoleh informasi akurat tentang iklim sekolah (faktor eksternal) siswa SMK Muhammadiyah  Ambon; (3) memperoleh informasi akurat tentang prestasi belajar siswa SMK Muhammadiyah  Ambon; dan (4) memverifikasi suatu model aplikatif struktual prestasi belajar Agama Islam siswa SMK Muhammadiyah Ambon berkaitan dengan faktor internal dan faktor eksternal siswa. Jenis penelitian ini yaitu penelitian ex-post facto bersifat hubungan sebab akibat. Populasi dalam penelitian ini yaitu siswa SMK Muhamadiyah Ambon tahun akademik 2019/2020. Sampel penelitian yaitu 145 siswa dengan teknik pengambilan sampel  proporsional stratified random sampling. Data dianalisis dengan Struktural Equation Modeling (SEM). Hasil penelitian yang diperoleh yaitu: (1) Siswa SMK Muhammadiyah Ambon memiliki rata-rata kecerdasan emosional yang tinggi dan perilaku belajar yang baik; (2) Siswa SMK Muhammadiyah Ambon mempunyai iklim sekolah yang kondusif; (3) Siswa SMK Muhammadiyah Ambon mempunyai prestasi belajar Agama Islam yang tinggi; dan (4) Model aplikatif struktural prestasi belajar Agama Islam siswa SMK Muhammadiyah Ambon yang memenuhi goodness of fit yaitu faktor internal (kecerdasan emosional dan perilaku belajar) berpengaruh terhadap prestasi belajar baik secara langsung maupun tidak langsung sedangkan faktor eksternal (iklim sekolah) tidak berpengaruh terhadap prestasi belajar siswa SMK Muhammadiyah Ambon.
Pemberian Pupuk Organik Cair (Poc) Air Cucian Beras Menggunakan Em4 Terhadap Pertumbuhan Nannochloropsis Sp. Pada Skala Laboratorium Diana Lindasari Waroy; Cahya saputri Leisubun; Siti Tamher; Irwan Ismail
Innovative: Journal Of Social Science Research Vol. 3 No. 2 (2023): Innovative: Journal Of Social Science Research (Special Issue)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v3i2.1660

Abstract

 Banyak jenis mikroalga yang sudah dibudidayakan sebagai pakan alami diantaranya adalah Nannochloropsis sp. Untuk mendapatkan persediaan Nannochloropsis sp. dalam jumlah yang melimpah sebagai pakan alami, maka dilakukan proses kultur. Dalam proses kultur perlu adanya pupuk organik cair yang diperoleh dengan mudah dan tersedia di alam salah satunya adalah air cucian beras yang menggunakan E4. Penelitian ini dilakukan di Laboratorium Pakan Alami Fakultas Perikanan Negeri Tual. Waktu penelitian dilaksanakan pada bulan Desember 2022. Menggunakan metode Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dengan 3 kali ulangan. Kepadatan rata-rata sel Nannochloropsis sp. pada setiap perlakuan yaitu perlakuan D dengan tingkat kepadatan 2. 651,61 x 104 sel/ml, perlakuan C tingkat kepadatan 2.060,71 x 104 sel/ml, perlakuan B dengan kepadatan 1.227,14 x 104 sel/ml, dan yang terendah terdapat pada perlakuan A (Kontrol) dengan kepadatan 1.172,14 x 104 sel/ml. Penambahan pupuk air bilasan beras memanfaatkan E4 memberikan dampak jelas kepada perkembangan Nannochloropsis sp. Pemberian pupuk terbaik berlangsung pada perlakuan D dengan jumlah pupuk air bilasan beras yang mengenakan E4 12 ml dengan kepadatan rata-rata 2.651,6 x 104 sel/ml.
Using Liquid Organic Fertilizer (POC), Rice Washing Water, Coconut Water, and Fermented Ecoenzymes to Enhance The Growth of Chlorella sp. Lab. Scale Ismail, Irwan; Tjoanda, Moses; Madubun, Usman; Lutur, Elen Marta
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 1 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i1.2065

Abstract

Culture media is one useful aspect for the development of microalgae. Adding fertilizer to the culture media can affect the density of Chlorella sp. When carrying out culture, it is necessary to have liquid organic fertilizer (POC) which is easy to obtain and found in nature, especially liquid organic fertilizer made from a fermented mixture of rice water, coconut water and eco enzymes. This research seeks to determine the effect of density of Chlorella sp. by administering liquid organic fertilizer made from rice water, coconut water and Eco enzyme fermentation, we can find out the ideal dose needed for the growth of chlorella sp. The highest throughout the study was obtained in treatment A (dose of 5 ml eco enzyme), which was followed by treatment C (does 12 ml/l POC + 2 ml/l eco enzyme), treatment B (does 8 ml/l POC + 2 ml/l eco enzyme), and the lowest in treatment D (dose 16 ml/l POC + 2 ml/l eco enzyme). Providing liquid organic fertilizer with rice washing water and coconut water had a significant effect on density of Chlorella sp. (p value <0.05). The highest density occurred on day 6 in treatment C, where a mixture of rice washing water and coconut water containing 5 ml of eco enzyme produced a population density of 6996.67 x 104 cells/ml.
DAMPAK PENAMBANGAN EMAS ILEGAL DI KABUPATEN BURU TERHADAP KONSENTRASI MERKURI (Hg) PADA KEPITING BAKAU (Scylla serrata) DAN KEONG BAKAU (Telescopium telescopium) Irsan, Irsan; Koto, Saifuddin; Ismail, Irwan; Dahlan, Rosmida R; Mangesa, Rosita
BIOPENDIX: Jurnal Biologi, Pendidikan dan Terapan Vol 10 No 1 (2023): Biopendix: Jurnal Biologi, Pendidikan & Terapan
Publisher : Program Studi Pendidikan Biologi FKIP Unpatti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/biopendixvol10issue1page80-90

Abstract

Background: Illegal gold mining in Buru Regency uses the heavy metal mercury toprocess gold material, so it can pollute the environment, including aquatic biota such asmangrove crabs (Scylla serrata) and mangrove snails (Telescopium telescopium). The aimof this research is to analyze the amount of mercury concentration and the level of pollutionin mangrove crabs and snails as a result of illegal gold mining in Buru Regency.Methods: Research samples were taken at the Waelata River Estuary and the AnahoniRiver Estuary. For mercury analysis, 8 mangrove crabs and 16 mangrove snails weretaken. Analysis of mercury concentration using the AAS Cold Vapor method.Results: The results showed that the heavy metal mercury was detected in mangrovecrabs and mangrove snails. The concentration of mercury detected is still below the qualitystandard set based on heavy metal contamination (SNI) No. 7387 of 2009, specifically forthe heavy metal Hg in shellfish (bilvalves), mollusks and sea cucumbers, shrimp and othercrustaceans at 1.0 mg/kg (ppm).Conclusion: Illegal gold mining in Buru Regency has an impact on mercury concentrationsin mangrove crabs and mangrove snails, but the value is still below the specified qualitystandards. However, consumption of mangrove crabs and mangrove snails that live aroundgold mining areas in Buru Regency must be limited, considering the nature of mercuryaccumulation.
The Analysis of The Absorption Capabilities of The Heavy Metal Mercury (Hg) in Mangrove Crab (Scylla serrata), Mangrove Snail (Telescopium telescopium) and Mangrove Clams (Polymesoda erosa) Irsan, Irsan; Male, Yusthinus T.; Koto, Saifuddin; Mangesa, Rosita; Ismail, Irwan; Nuraisah, Siti; Kabau, Widyawati; Banjar, Firman
Indonesian Journal of Chemical Research Vol 12 No 3 (2025): Edition for January 2025
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2025.12-irs

Abstract

Mercury is a neurotoxic heavy metal with high bioaccumulation ability in aquatic biota, such as mangrove crabs (Scylla serrata), mangrove snails (Telescopium telescopium), and mangrove mussels (Polymesoda erosa), which are widely consumed by humans, and used as bioindicators of pollution. This study aimed to analyze the effect of mercury solution concentration and species differences on mercury absorption in the three biota. The method used was experimental treatment with mercury concentrations of 1 ppm, 5 ppm, 10 ppm, and control. Samples were analyzed using the AAS Cold Vapor method at the IPB Bogor Proling Laboratory. Data were analyzed descriptively and inferentially using two-way Anova with an α level of 0.05, followed by the Duncan Test if the hypothesis was accepted. Research data will be processed using SPSS 26.0 software. The results showed that mercury concentration and species differences influenced the ability to absorb mercury. Mangrove clams had the highest mercury accumulation compared to mangrove snails and mangrove crabs, especially in the 5 ppm and 10 ppm treatments. The highest mercury exposure occurred on the second day of observation.
KUALITAS PERAIRAN LAUT DESA JIKUMERASA KABUPATEN BURU BERDASARKAN PARAMETER FISIK, KIMIA DAN BIOLOGI Umasugi, Samsia; Ismail, Irwan; Irsan, Irsan
BIOPENDIX: Jurnal Biologi, Pendidikan dan Terapan Vol 8 No 1 (2021): Biopendix: Jurnal Biologi, Pendidikan & Terapan
Publisher : Program Studi Pendidikan Biologi FKIP Unpatti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/biopendixvol8issue1page29-35

Abstract

Background: Jikumerasa waters are one of the waters that have ecological and economic value. The high level of human activity in utilizing marine waters in Jikurasa Village has the potential to cause pollution and reduce water quality. For this reason, it is necessary to measure the water quality of Jikuemerasa Village based on the conditions of physical, chemical and biological parameters.Methods: This research was conducted from September 2021 to October 2021. Sampling was carried out at seven stations. measurement of physical and chemical parameters directly (in situ), namely: temperature, brightness, pH and salinity. Water samples were taken to measure physical, chemical and biological parameters ex situ including: DO, BOD, COD and coliform bacteria in the laboratory.Results: The study showed that the parameters that were still in accordance with the quality standards at all research stations were: temperature, brightness, COD, BOD, Pb metal and the number of coliform bacteria. For the salinity parameter, only station IV has a salinity below the quality standard. In the DO parameter, there are several research stations (stations I, IV and VI) which are still in accordance with the quality standard, while the other stations are below the quality standard. Parameters that do not match the quality standards are: TDS and pH.Conclusion: The condition of the quality of the marine waters of Jikumerasa Village, Buru Regency based on physical, chemical and biological parameters, mostly still meets the specified quality standards.
IMPACT OF JIKUMERASA VILLAGE TOURISM DEVELOPMENT ON COMMUNITY STRUCTURE AND DISTRIBUTION PATTERNS BIVALVIA, GASTROPODE AND ECHINOIDEA Ismail, Irwan; Irsan, Irsan; Kasmawati, Kasmawati
BIOPENDIX: Jurnal Biologi, Pendidikan dan Terapan Vol 9 No 1 (2022): Biopendix: Jurnal Biologi, Pendidikan & Terapan
Publisher : Program Studi Pendidikan Biologi FKIP Unpatti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/biopendixvol9issue1page45-62

Abstract

Background: Jikumerasa village has the main object of marine and beach tourism in Buru Regency. This activity has the potential to have a negative impact on community structure and distribution patterns of Bivalves, Gastropods and Echinoidea. Methods: The study was carried out in August 2022 - September 2022. Sampling used a transect measuring 1 x 1 m (1 m2). Physical and chemical parameters of the waters were measured temperature, pH and salinity. Results: There were 16 types of gastropods, 9 types of Bivalves and 3 types of Echinoidea found at the study site. Low species density and diversity. High uniformity and no dominant type. A total of 17 species had random distribution and 7 species clustered. Water temperature 29.30C - 29.60C, pH 6.3 - 6.6 and Salinity 250/00 - 300/00. Conclusion: Beach tourism in Jikumerasa Village has an impact on community structure and distribution patterns of Bivalves, Gastropods and Echinoidea. This can be seen from the few species found, low density and diversity, high uniformity, mostly random distribution patterns of species, and conditions of pH and salinity of the waters below the quality standard.
The Effect Of Liquid Organic Fertilizer (Lof) From Rice Washing Water and Coconut Water Using Em4 On The Growth Of Chorella sp. At Laboratory Scale Lutur, Elen Marta; Ismail, Irwan; Irsan, Irsan; Rumakabis, Mega Utami
Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan Vol 5 No 2 (2023): Edisi November
Publisher : Fakultas Perikanan dan Ilmu Kelautan Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/barakuda45.v5i2.465

Abstract

Chlorella sp. has significantly higher nutritional content compared to artificial feed. To obtain Chlorella sp. as a natural feed, it was necessary to cultivate pure phytoplankton to meet the availability of crude feed in sufficient quantities. In conducting the cultivation, there was a need for liquid organic fertilizer (LOF) that could be easily obtained and was available in nature, which was liquid organic fertilizer made from a mixture of rice washing water and coconut water fermented using EM4. This research aimed to determine the density of Chlorella sp. using liquid organic fertilizer from rice washing water, and coconut water fermented using EM4 and the effect of the best fertilizer dosage on the growth of Chlorella sp. This research used a Completely Randomized Design (CRD) consisting of 4 treatments with four replications. The highest average cell density of Chlorella sp. throughout the research was obtained in treatment C (15 ml dosage), followed by treatment B (10 ml dosage), treatment D (20 ml dosage), and the lowest in treatment A (control). The application of liquid organic fertilizer from rice washing water and coconut water significantly affected the density of Chlorella sp. (p <0.05). The highest density was recorded on day 6 in treatment C with a dosage of rice washing water and coconut water of 15 ml, with a population density of 12,466.25 x 104 cells/ml.
Use (POC) Of Rice Washing Water, Coconut Water, And Fermented Chicken Egg Shalls On The Density Of Chlorella Sp. Semi-Mass Scale ismail, Irwan; Lutur, Elen Marta; Irsan, Irsan
Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan Vol 7 No 1 (2025): Edisi April
Publisher : Fakultas Perikanan dan Ilmu Kelautan Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/barakuda45.v7i1.604

Abstract

Chlorella sp. is one of the microalgae that is used as natural food because it contains more nutrients compared to artificial food. In order to obtain microalgae such as Chlorella sp. The aim of the cultivation process is to obtain microalgae in good condition, so that the availability of natural food can be fulfilled through the culture process. To support the culture process, organic materials are needed in the form of POC which are easy to find and of course naturally available. One example is the use of POC organic material which is produced from adding coconut water, rice washing water and chicken egg shells, then fermented using EM4. The aim of this research was to determine the effect of using liquid organic materials (POC) on the density of Chlorella sp. and the best concentration treatment during the long-term culture process. The research method applied was a Completely Randomized Design (CRD), including four treatments and three repetitions throughout the research. Chlorella sp cell density. The highest occurred in treatment K (control concentration 25 ml/container), then treatment B (concentration 200 ml/container), treatment A (concentration 100 ml/culture container), and the lowest density was in treatment C (concentration 300 ml/container). The use of ingredients (POC) derived from coconut water, rice washing water, and chicken egg shells has an effect on the cell density of Chlorella sp. with a p value <0.05). The highest density was on day 10 with a density value of Based on the results obtained from the use of POC as a natural fertilizer for the cultivation of Chlorella sp. For this reason, it is hoped that cultivators need to use POC in the surrounding environment as an alternative fertilizer to replace chemical fertilizers because it has good nutritional content for the Chlorella sp cultivation process and does not pollute the aquatic environment.
Co-Authors Banjar, Firman Cahya saputri Leisubun Dahlan, Rosmida R Dangeubun, Jane Lulinda Darwin . Diana Lindasari Waroy Irsan Irsan Kabau, Widyawati Koto, Saifuddin Lutur, Elen Marta Madubun, Usman Mangesa, Rosita Rahayaan, Saraswati Rumakabis, Mega Utami Samsia Umasugi, Samsia Siti Nuraisah, Siti Siti Tamher Tjoanda, Moses Tua Rahantoknam, Santi Penina Warayaan, Finansius Ferdi Wusuk, Rumiati Yusthinus T. Male _, Kasmawati