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All Journal HAYATI Journal of Biosciences Jurnal Ilmu dan Teknologi Kelautan Tropis Maspari Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Maspari Journal EduChemia: Jurnal Kimia dan Pendidikan Science and Technology Indonesia Jurnal Penelitian Sains Jurnal Biologi Tropis IJEMS (Indonesian Journal of Environmental Management and Sustainability) Dinasti International Journal of Education Management and Social Science Journal of Tropical Marine Science SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) SIMBIOSA Bioscientist : Jurnal Ilmiah Biologi Indonesian Journal of Oceanography Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat BIOVALENTIA: Biological Research Journal Jurnal Locus Penelitian dan Pengabdian JOMPA ABDI: Jurnal Pengabdian Masyarakat JAPI: Jurnal Akses Pengabdian Indonesia
Rozirwan .
Department Of Marine Science, Faculty Of Math And Natural Science, Sriwijaya University, Ogan Ilir, South Sumatra 30862, Indonesia
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Vertical and Horizontal Variability of Chlorophyll-a and Its Relationship with Environmental Parameters in the Waters of Sangihe and Talaud Islands, North Sulawesi, Indonesia Firdaus, Mochamad Ramdhan; Rachman, Arief; Fitriya, Nurul; Wijayanti, Lady Ayu Sri; Rozirwan, Rozirwan; Purwandana, Adi; Prayitno, Hanif Budi; Alfiansyah, Yustian Rovi; Sianturi, Oksto Ridho; Sugeha, Hagi Yulia
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 1 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.1.119-132

Abstract

The chlorophyll-a is an important biological parameter that could act as a proxy to indicate the abundance of phytoplankton and the primary productivity of an aquatic ecosystem. This paper investigates the vertical and horizontal variability of chlorophyll-a in the waters of Sangihe and Talaud Islands, Indonesia, and its correlation with water environmental parameters. In this study, the distribution of chlorophyll-a, temperature, salinity, and nutrients (NO3 and PO4) from the surface to a depth of 200 m (photic zone) was measured at 29 research stations. The results showed that the distribution of chlorophyll-a in the waters of the Sangihe-Talaud Islands was varied vertically and horizontally. The waters around the Sangihe Islands generally exhibited a higher chlorophyll-a distribution and shallower Deep Chlorophyll Maxima compared to the water around the Talaud Islands. The concentration of chlorophyll-a varied between 0.0017 and 1.2155 mg.m-3, with most of the water column in Sangihe-Talaud considered oligotrophic, although some stations or depths were mesotrophic or slightly eutrophic. The maximum chlorophyll-a concentration was found in the sub-surface layer at depths between 46 and 101 m. The low N:P ratio (<16) and N:Si ratio (<1) indicate that the water columns of Sangihe-Talaud, up to a depth of 200m, were N-limited. Based on the GAM analysis, chlorophyll-a concentration in Sangihe-Talaud waters was primarily regulated by temperature, salinity, and the N:P ratio, with weak influence from phosphate and the N:Si ratio. The analysis also suggests that primary productivity in Sangihe-Talaud is sensitive to temperature changes, indicating its vulnerability to future warming events.
Anti-Inflammatory Activity and Phytochemical Profile from the Leaves of the Mangrove Sonneratia caseolaris (L.) Engl. for Future Drug Discovery Rozirwan; Ade Siswanto; Nadila Nur Khotimah; Redho Yoga Nugroho; Wike Ayu Eka Putri; Fauziyah; Rezi Apri; Hartoni
Science and Technology Indonesia Vol. 9 No. 2 (2024): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.2.502-516

Abstract

The increasing demand for effective and natural anti-inflammatory agents prompts an investigation into the properties of Sonneratia caseolaris (L.) Engl., a plant traditionally used in medicine. This study aimed to explore the ability of S. caseolaris leaves extract to inhibit inflammation and accelerate wound healing. S. caseolaris leaves were collected from Tanjung Api-Api area, Banyuasin, South Sumatra. The method involved carrageenan induction in rat paws as an inflammatory model. The results showed that the most effective dose was found in the group with a dose of 150 mg/kg BW measured using a digital caliper and plethysmometer. The qualitative phytochemical test contain alkaloids, steroids, flavonoids, and phenols. The results GC-MS analysis were thought to contain aldehydes, glucosinolates, coumarins, esters, terpenoids, alcohols, lipids, tocopherols, and steroids. Due to their diverse range of mechanisms of action, coumarins show significant promise in mitigating inflammation and hold potential for treating inflammatory conditions. This study provides new insights related to the potential of S. caseolaris as a source of natural anti-inflammatory agents, supporting public comprehension regarding the utilization of traditional herbal remedies.
Toksisitas Ekstrak Daun mangrove Rhizophora stylosa dari Pulau Maspari Sumatera Selatan Muhtadi, Muhtadi; Ulqodry, Tengku Zia; Rozirwan, Rozirwan; Sarno, Sarno; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5679

Abstract

The leaves of R. stylosa are a potential source of bioactive compounds for health and pharmacology. The composition of bioactive compounds in the leaves can be influenced by the ecological conditions and geographical location of this small island. This study aims to evaluate the toxicity and composition of bioactive compounds that are toxic in mangrove leaf extracts of R. stylosa from Maspari Island in coastal South Sumatra. A total of 1 kg of R. stylosa leaf samples were taken from Maspari Island then washed thoroughly to remove dirt, cut into small pieces, and dried in the sun using the indirect sunlight method covered with black cloth. The dried leaf samples were then pulverized into powder, and as much as 100 grams of fine powder was macerated with 96% ethanol solvent in a ratio of 1:10 (b/v). The maceration process was carried out for 1 x 24 hours, then the maceration solution was filtered and evaporated using a rotary evaporator at 60°C to become a concentrated extract. Toxicity tests were carried out using the Brine Shrimp Lethality Test (BSLT) method, while the identification of toxic bioactive compounds was carried out through phytochemical tests, total phenol tests, and GC-MS analysis. The test results showed that the LC50 value of R. stylosa leaf extract was 393 mg/mL (moderately toxic). The total phenol content was 442.82 (gGA/g), and the bioactive compounds identified included alkaloids, flavonoids, saponins, terpenoids, and acids such as Hexadecanoic acid, methyl ester, and trans-13-Octadecenoic acid, methyl ester.
Pengaruh Metode Filtrasi Terhadap Peningkatan Kualitas Fisik Air Muara Sungsang, Banyuasin Meiyerani, Jeni; Melki, Melki; Widjajanti, Hary; Rozirwan, Rozirwan; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5680

Abstract

Water quality in the form of turbidity, colour, odour, taste and suspended residue are significant issues in Sungsang Banyuasin. The filter utilizes a filtration method to remove solid particles and contaminants. The research site consists of Sungsang, Sungsang II, and Sungsang III areas. The purpose of this study was to determine the water quality in the form of colour, taste, odour, turbidity, suspended residue, and salinity, as well as the ability of the filter to overcome water quality. Filtration consists of sedimentation, filter membranes, and filter media consisting of zeolite, silica, anthracite, ferrolite, activated carbon, and bioring. Water quality measurements used organoleptic to determine odour and taste, handrefractometer to measure salinity, direct reading to measure suspended residue, and spectrophotometry to measure colour and turbidity. The breech water was odourless and tasteless, and the suspended residue value ranged from 17-19 mg/L below the quality standard of 50 mg/L. Colour and turbidity values are greater than 50 on their respective scales and salinity values range from 11-13 ppt. The filtration process successfully reduced the values of suspended residue, colour, turbidity, and salinity.
Logam Berat Pb, Cu, Zn Dan Ni Dalam Air Di Ekosistem Lamun Pulau Pahawang Gusri, Ariqoh Athallah; Rozirwan, Rozirwan; Putri, Wike Ayu Eka
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5681

Abstract

In coastal environments and the ecosystems, including seagrass ecosystems, heavy metals can lead to pollution. This study goal is to analyze the concentration of heavy metals in water based on safety standards for marine organisms. Water samples were collected from two locations: Jeralangan HamLet and Cukuh Nyai HamLet in Pahawang Island, Lampung, Indonesia. Water quality parameters were measured in situ. Heavy metals such Pb, Cu, Ni, and Zn were prepared using Wet digestion method and the concentrations were measured using Atomic Absorption Spectrophotometer (AAS) SHIMADZU AA-7000. At the same location, the highest concentration of was observed for Zn 0.406 mg/L at station 2, while the lowest concentration was recorded for Cu 0.019 mg/L. The concentration of heavy metals Pb, Cu, Ni and Zn in water has exceeded the quality standards for marine biota and marine tourism.These research can be used as a basis for future planning in the management of Pahawang Island’s coastal environment.
Heavy Metal Accumulation and Ecological Risk on Seagrass Cymodocea and Thalassia in Pahawang Island, Indonesia Gusri, Ariqoh Athallah; Rozirwan, Rozirwan; Putri, Wike Ayu Eka; Melki, Melki; Isnaini, Isnaini; Nugroho, Redho Yoga; Mohamed, Che Abd Rahim
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 30, No 2 (2025): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.30.2.274-288

Abstract

Seagrass species thrive in coastal ecosystems and known for their ability to accumulate heavy metals from their surrounding environment. This study aims to evaluate the ecological risks related to the accumulation of heavy metals in seagrass roots, leaves, and sediments. The seagrass examined belong to the genera Cymodocea and Thalassia, collected from two sites: Jeralangan and Cukuh Nyai on Pahawang Island, Lampung, Indonesia. The heavy metals analyzed included Pb, Cu, Ni, and Zn, which were measured using the wet destruction method and quantified with a SHIMADZU AA-7000 Atomic Absorption Spectrophotometer (AAS). The ecological risk was evaluated through various indices, such as the Bioconcentration Factor (BCF), Translocation Factor (TF), Geoaccumulation Index (Igeo), Contamination Factor (Cf), and Pollution Load Index (PLI). The highest concentrations of heavy metals in sediment were detected at station 1 was Zn (15.486 mg.kg-1). In the roots of Cymodocea was Zn (8.772 mg.kg-1), while the highest concentration in leaves was Cu in Thalassia (10.541 mg.kg-1). The ecological risk assessment revealed that BCF < 1 categorize an excluder, while TF > 1 for Pb and Zn indicate effective translocation from roots to leaves. Additionally, Igeo < 0 signify no contamination, Cf < 1 indicate low pollution levels, and PLI < 0 confirm a non-polluted status. In conclusion, the results show that the seagrass ecosystems at the study sites currently have low levels of heavy metal pollution and minimal ecological risk, suggesting they remain in a relatively safe condition.
Training on Making Mangrove-Based Beauty Soap Innovation Products in Sungsang IV Village, South Sumatra Rozirwan, Rozirwan; Zia Ulqodry, Tengku; Ayu Eka Putri, Wike; Diansyah, Gusti; Winarta, Yoga; Yoga Nugroho, Redho
SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) Vol. 6 No. 1 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/spekta.v6i1.9463

Abstract

Background: In an effort to enhance the utilization of mangrove forests based on local coastal resources, a community service initiative was conducted in Sungsang Village, Banyuasin Regency, on 25-26 September 2024. The training focused on teaching 40 participants how to produce beauty liquid soap from Sonneratia caseolaris (mangrove) leaf extract. Contribution: This activity Contributes to improve the technical skills of making beauty liquid soap from mangrove plants as an effort to optimize the utilization of mangrove forest vegetation in Sungsang Village. Method: The method of this service activity is a training in making liquid soap through product prototype demonstration and direct assistance. Results: In general, the participants' knowledge about making beauty liquid soap from mangroves has increased after undergoing training activities. Conclusion: The pre-test and post-test evaluation of the 40 participants showed a significant improvement in their understanding, with the evaluation graph showing a shift from low to better levels of knowledge. While there were variations in the level of understanding about beauty liquid soap.
Copper and Lead Contamination in Sediment and Benthic Ecosystems of Sembilang National Park’s Coastal Region, South Sumatra Rozirwan; Ananta, Dio Alif; Khotimah, Nadila Nur; Putri, Wike Ayu Eka; Fauziyah; Dianysah, Gusti; Siregar, Yusni Ikhwan; Ramses; Isnaini; Melki; Aryawati, Riris; Agustriani, Fitri; Nugroho, Redho Yoga
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.3.866-876

Abstract

Littoral zone often face environmental pressure due to anthropogenic activities, which can impact the quality of their ecosystem. This study analyzes the concentrations of copper (Cu) and lead (Pb) in sediments and benthic (Anadara granosa and Cerithidea cingulata). Sampling procedures were implemented during September 2022 across the aquatic habitats of Sembilang National Park, in South Sumatra Province, using the purposive sampling method. Sediment grain size and substrate type were analyzed using Shepard’s triangle. Metal detection using a spectrophotometric method based on atomic absorption. The results showed that the sediment fraction mostly consisted of clay, ranging from 92.03% to 94%. Cu concentrations in the sediment ranged from 5.01±0.017 to 5.71±0 mg/kg, while Pb concentrations ranged from 10.5±0.195 to 11.51±0.395 mg/kg. In the benthic, Cu concentrations ranged from 0.0037±0.00005773 to 0.0147±0.00000346 mg/kg, and Pb concentrations ranged from 0.0001±0.000227 to 0.005±0 mg/kg. According to the statistical evaluation testing via independent sample t-test showed that heavy metals differed significantly (p <0.05) between sediment and benthic compartments. These results show that the environmental quality in Sembilang National Park is still comparatively well maintained and within current quality requirements, despite certain activities that have the potential to pollute the environment. To guarantee the long-term viability of this area, it is advised that environmental quality be frequently monitored as a mitigation action.
Heavy Metal Pb, Cu, and Cd Pollution in Water and Sediment Due to Anthropogenic Activities Along the Musi River, South Sumatra Wahyudi, Wahyudi; Rozirwan, Rozirwan; Putri, Wike Ayu Eka
Jurnal Penelitian Sains Vol 27, No 1 (2025)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v27i1.1168

Abstract

Human activities along river flows can increase the potential for heavy metal pollution, which risks reducing water quality, polluting sediments, and threatening the sustainability of aquatic ecosystems. This research aims to evaluate the distribution of heavy metal pollution in water and sediment in the Musi River, which is affected by various anthropogenic activities. Samples for heavy metal analysis were collected from four clusters of observation locations. The heavy metal parameters tested included Cd, Cu, and Pb, which were analyzed using the wet digestion method and measured with an Atomic Absorption Spectrophotometer (AAS). The resulting heavy metal contaminations in sediment were much higher than in water, with Pb having the highest concentration in both matrices. Pb concentrations in sediment ranged from 11.845 to 15.301 mg/kg, while in water they ranged from 0.0791 to 0.0801 mg/L. Cu has more varied concentrations, with the highest value in Cluster 4 sediment of 9.518 mg/kg and water of 0.0160 mg/L. Meanwhile, Cd has a low but significant concentration, with values in sediment ranging from 0.130 to 0.315 mg/kg and in water from 0.0084 to 0.0101 mg/L. This heavy metal pollution shows that sediment functions as the main reservoir for heavy metals due to bioadsorption and precipitation processes from the water column. The implications of these results emphasize the importance of regular environmental monitoring and mitigation of pollution sources to prevent further impacts on the stability of coastal ecosystem.
Toksisitas Ekstrak Daun mangrove Rhizophora stylosa dari Pulau Maspari Sumatera Selatan Muhtadi, Muhtadi; Ulqodry, Tengku Zia; Rozirwan, Rozirwan; Sarno, Sarno; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5679

Abstract

The leaves of R. stylosa are a potential source of bioactive compounds for health and pharmacology. The composition of bioactive compounds in the leaves can be influenced by the ecological conditions and geographical location of this small island. This study aims to evaluate the toxicity and composition of bioactive compounds that are toxic in mangrove leaf extracts of R. stylosa from Maspari Island in coastal South Sumatra. A total of 1 kg of R. stylosa leaf samples were taken from Maspari Island then washed thoroughly to remove dirt, cut into small pieces, and dried in the sun using the indirect sunlight method covered with black cloth. The dried leaf samples were then pulverized into powder, and as much as 100 grams of fine powder was macerated with 96% ethanol solvent in a ratio of 1:10 (b/v). The maceration process was carried out for 1 x 24 hours, then the maceration solution was filtered and evaporated using a rotary evaporator at 60°C to become a concentrated extract. Toxicity tests were carried out using the Brine Shrimp Lethality Test (BSLT) method, while the identification of toxic bioactive compounds was carried out through phytochemical tests, total phenol tests, and GC-MS analysis. The test results showed that the LC50 value of R. stylosa leaf extract was 393 mg/mL (moderately toxic). The total phenol content was 442.82 (gGA/g), and the bioactive compounds identified included alkaloids, flavonoids, saponins, terpenoids, and acids such as Hexadecanoic acid, methyl ester, and trans-13-Octadecenoic acid, methyl ester.
Co-Authors . Chaidir ., Renaldi Ade Siswanto Adi Purwandana Akhmad Tri Prasetyo Alfiansyah, Yustian Rovi Ali Mahmudi Alimin Alimin Amanda Astri Pratiwi Febrianti Ananta, Dio Alif Andi Agussalim, Andi Anggraini, Rifka Rimbi Ani Haryati, Ani Aning Puji Saputri Anna Heirina Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna IS Purwiyanto Apon Zaenal Mustopa Arief Rachman Asshidiq, Hasbi Nur Ayu Eka Putri, Wike Bakri Barus, Beta Susanto Chaidir Chaidir Che Abd Rahim Mohamed Daratil Khoiri Mukhlis Delima A. G. Situmorang Delta, Muhammad Dian Anggun Lestari Dianysah, Gusti Dietriech Geoffrey Bengen Dimas Arie Pratama Elisa Wildayana Elisa Wildayana Fatimah Fatimah Fatmalina Febry Fauziyah Fauziyah FAUZIYAH Fauziyah Fauziyah Fauziyah Fauziyah Fauziyah Fauziyah Fery Pratama Firdaus, Mochamad Ramdhan Fitrah Amelia Fitrani Mirna Fitri Agustriani Fitri Agustriani Gaby Ananda Dejulien Gires Usup Gusri, Ariqoh Athallah Gusti Diansyah Gusti Diansyah Hanif Budi Prayitno Hartoni Hartoni Hartoni Hary Widjajanti Hasbi Nur Asshidiq Hefni Effendi Heron Surbakti Herpandi . Hilmaturosyidah, Hilmaturosyidah Iskhaq Iskandar Ismarti, Ismarti Isnaini Isnaini Isnaini . Judistira Siddik Khotimah, Nadila Nur Langgeng Priyanto Lestari, Ning Intan M. Hendri Mei Ida Susanti Meiyerani, Jeni Melki Melki Melki Melki Melki Melki Melki Mohamed, Che Abd Rahim Muhamad Nur Muhammad Delta Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhammad Hendri Muhtadi Muhtadi Muhtadi Muhtadi Mukhlis, Daratil Khoiri Nadila Nur Khotimah Nadila Nur Khotimah Nadila Nur Khotimah Nadya Rahmania, Nadya Neviaty P. Zamani NEVIATY PUTRI ZAMANI Neza Rahayu Palapa Ningsih, Ellis Nurjuliasti Nita Puspita Sari Nuril Azhar Nurlisa Hidayati Nurul Fitriya Nurwijayanti Oksto Ridho Sianturi Purwiyanto, Anna IS Rahmad Purnama Rahmad Purnama, Rahmad Ramses Ramses Ramses Redho Yoga Nugroho Reftika Ramona Putri Renaldi . restu juniah, restu Rezi Apri Rezi Apri Ridhah Taqwa, Ridhah Rifka Rimbi Anggraini Rio Nopandri Rio Nopandri Riris Aryawati Risfidian Mohadi Riswani Riswani Riswani Riswani Rizky Okta Vianti Rizky Sepferizal Rudi Hartono Sarno Sarno Sepferizal, Rizky Sitorus, Natalia Clarisa Sri Rahayu Sugeha, Hagi Yulia Syamdhora, Riki T. Zia Ulqodry Tengku Zia Ulqodry Tengku Zia Ulqodry Tengku Zia Ulqodry Tika Gustiana Ulqodry, T Zia Vianti, Rizky Okta Wahyudi Wahyudi Wijayanti, Lady Ayu Sri Wike Ayu Eka Putri Wike Ayu Eka Putri Winarta, Yoga Yossy Fitria Yulianto Suteja Yundari, Yundari Yusni Ikhwan Siregar Zia Ulqodry, Tengku