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All Journal Journal of Marine Research Jurnal Kelautan Tropis Journal of Tropical Marine Science
Irma Akhrianti
Program Studi Ilmu Kelautan, Fakultas Pertanian, Perikanan, dan Biologi, Universitas Bangka Belitung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Penilaian Pencemaran Logam Berat Cd, Pb, Cu, dan Zn pada Sedimen Permukaan Perairan Matras, Sungailiat, Bangka Mohammad Agung Nugraha; Aditya Pamungkas; Indra Ambalika Syari; Suci Puspita Sari; Umroh Umroh; Mu’alimah Hudatwi; Eva Utami; Irma Akhrianti; Agung Priyambada
Jurnal Kelautan Tropis Vol 25, No 1 (2022): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v25i1.12317

Abstract

Matras waters receive input of pollutants from tin mining activities. Heavy metals are toxic and carcinogenic to aquatic biota. Sediment is a carrier of heavy metal pollutants and can act as a “sink” and a “source”. Heavy metals in sediments can reflect the condition/quality of the aquatic system. The purpose of this study was to examine the contamination and ecological risk of heavy metals Cd, Pb, Cu, and Zn in the sediments of Matras waters, Sungailiat, Bangka Regency. Heavy metal test using atomic absorption spectrophotometer (AAS). The concentrations of heavy metals Cd, Pb, Cu, and Zn obtained ranged from 0.02-0.06 mg/kg (average 0.04 mg/kg), 0.12-0.18 mg/kg (mean- average 0.15 mg/kg), each station 0.01 mg/kg (mean 0.01 mg/kg), and 0.54-1.34 mg/kg (mean 0.92 mg/kg ). CF, I-Geo, PLI, and RI values for Cd, Pb, Cu, and Zn metals obtained in Matras water sediments showed low contamination levels (CF<1), not polluted (Igeo 0), not polluted (PLI < 1), and low ecological risk (RI < 150). The EF value obtained indicates the heavy metals Cd, Pb, Cu, and Zn in the Matras waters mainly receiving input from anthropogenic sources (EF value> 1.5). The low ecological risk status which is reinforced by the low values of CF, I-Geo, and PLI indicates that the negative potential of metals to biota is also low.  Perairan Matras menerima masukan bahan pencemar dari aktivitas penambangan timah. Logam berat bersifat toksik dan karsinogenik terhadap biota akuatik. Sedimen merupakan pembawa polutan logam berat dan dapat berperan sebagai “sink” and “source”. Logam berat pada sedimen dapat merefleksikan kondisi/ kualitas sistem akuatik. Tujuan penelitian ini untuk mengkaji kontaminasi dan resiko ekologi logam berat Cd, Pb, Cu, dan Zn pada sedimen Perairan Matras, Sungailiat, Kabupaten Bangka. Uji logam berat menggunakan metode spektrofotometer serapan atom (SSA). Konsentrasi logam berat Cd, Pb, Cu, dan Zn yang diperoleh berkisar antara 0,02-0,06 mg/kg (rata-rata 0,04 mg/kg), 0,12-0,18 mg/kg (rata-rata 0,15 mg/kg), setiap stasiun 0,01 mg/kg (rata-rata 0,01 mg/kg), dan 0,54-1,34 mg/kg (rata-rata 0,92 mg/kg). Nilai CF, I-Geo, PLI, dan RI untuk logam Cd, Pb, Cu, dan Zn yang diperoleh pada sedimen Perairan Matras menunjukkan tingkat kontaminasi rendah (CF<1), tidak tercemar (Igeo 0), tidak tercemar (PLI <1), dan resiko ekologi rendah (RI < 150). Nilai EF yang diperoleh mengindikasikan logam berat Cd, Pb, Cu, dan Zn perairan Matras utamanya mendapat masukan dari sumber antropogenik (nilai EF>1,5). Rendahnya status resiko ekologi yang diperkuat dengan rendahnya nilai CF, I-Geo, dan PLI menunjukkan potensi negatif logam terhadap biota juga rendah.
Konsentrasi Dan Distribusi Karbon Organik Total (TOC), Total Nitrogen (TN) Dan Rasio C/N Pada Sedimen Di Perairan Kawasan Pelabuhan Pangkal Balam, Bangka Lara Sukma Sadewi; Mohammad Agung Nugraha; Irma Akhrianti
Journal of Tropical Marine Science Vol 5 No 2 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.365 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i2.2552

Abstract

Total organic carbon (TOC), total nitrogen (TN) and C/N ratio are organic matter present in the waters. The waters of Pangkal balam port area has a fairly dense community activity such as ports, aquaculture, PLTU and settlements. The waste from the activity enters the water column so that it can affect the abundance of the waters, therefore research on organic matter needs to be carried out in the waters of the Pangkal Balam Port Area. This study aims to determine the distribution pattern of TOC, TN and sediment C/N ratio in the waters of the Pangkal Balam Port Area. Knowing the source of organic matter input in the waters of the Pangkal Balam Port Area and knowing the relationship between TOC and fine sediment. Determination of research stations using stratified purposive sampling method. The sampling time was carried out in February 2021 in the waters of the Pangkal Balam Port Area, Bangka. TOC and TN concentrations were analyzed using the Walkley Black method and the Kjeldahl method. The TOC concentration ranges from 0.59-9.79% which is categorized as low to high, while the TN concentration scores between 0.01-0.06% which is classified as low to high and the C/N ratio is and 59-244.75 which is explain the main source of organic material input from terrestrial. TOC with fine sediment has a positive relationship and a weak effect (r = 0.472) and the coefficient of determination (R2) is 0.223%.
Pemanfaatan Citra Sentinel 2A Untuk Pemetaan Sebaran Ekosistem Lamun Di Perairan Pulau Panjang, Bangka Tengah Salmia Septiani; Irma Akhrianti; Aditya Pamungkas
Journal of Tropical Marine Science Vol 5 No 2 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.714 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i2.3010

Abstract

Remote sensing techniques by utilizing satellite imagery can provide many advantagesin assessing information about the distribution of seagrass ecosystem in the Panjang Island waters. By using Sentinel 2A satellite imagery with a spatial resolution of 10 m, this study will provide information about the condition of seagrass beds in Panjang Island. The next step is the application of the Depth Invariant Index (DII) algorithm or the water column correction with the Lyzenga algorithm on the image. Based on the results of the supervised classification in ENVI 5.2 software, the color hue of each class shows a different color. There are six classes, namely land, seagrass, rubble / coral fragments, reef coral, sand and sea. The area of seagrass has an area of about 70.24 ha. There are 7 types of seagrass found in the waters of Panjang Island. Among them are, Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, Halodule uninervis, Syringodium isoetifolium, and Halodule pinifolia. The percentage of seagrass cover based on the results of the field survey has an average of 9.84% which is categorized as poor/damaged. The lowest percentage with a value of 3.48% is at station 3 and the highest with a value of 12.91% is at station 2.
Identifikasi Jenis Bivalvia Pada Ekosistem Mangrove Di Sekitar Perairan Kota Pangkalpinang Adelia Erika; Mu&#039;alimah Hudatwi; Irma Akhrianti
Journal of Marine Research Vol 11, No 4 (2022): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v11i4.34036

Abstract

Hutan mangrove merupakan salah satu ekosistem pesisir yang memiliki produktivitas yang tinggi sehingga dapat memberikan kontribusi yang besar terhadap biota yang hidup didalamnya, salah satunya yaitu bivalvia. Secara ekologis mangrove berfungsi sebagai daerah asuhan, tempat mencari makan, dan pemijahan bagi bivalvia. Penelitian ini bertujuan untuk mengetahui jenis bivalvia yang ditemukan pada ekosistem mangrove, mengetahui nilai indeks ekologi bivalvia, serta mengetahui hubungan antara bivalvia dengan kerapatan mangrove dan parameter lingkungan. Penelitian ini dilaksanakan pada bulan Februari-April 2021 di empat stasiun yang berbeda yaitu Pantai Tanjung Bunga, Muara Serata Pasir Padi, Pantai Koala Jembatan Emas, dan Pelabuhan Pangkal Balam. Pengambilan data dalam penelitian ini menggunakan metode line transect yang ditarik dari arah laut ke darat, kemudian diletakkan tiga plot transek dengan ukuran 10x10m yang berbentuk zig-zag dengan ulangan 9 plot transek mangrove yang terdiri dari 3 sub stasiun pengamatan. Hasil penelitian menunjukkan bahwa ditemukan bivalvia sebanyak 472 individu dari 23 spesies dan 9 family. Nilai indeks keanekaragaman tertinggi terdapat pada stasiun 3 yaitu 3,187. Indeks keseragaman tertinggi terdapat pada stasiun 4 dengan total nilai 0,267. Indeks dominansi nilai tertinggi terdapat pada stasiun 2 yaitu 0,405. Hasil analisis komponen utama (Principal Component Analysis) menunjukkan bahwa nilai hubungan keanekaragaman bivalvia dengan nilai kerapatan mangrove pada penelitian ini menunjukkan hubungan korelasi positif yang dengan nilai r = (0,57). Sedangkan, faktor fisika-kimia yang mempengaruhi keanekaragaman bivalvia adalah salinitas dengan nilai r = (0,95) dan pH dengan nilai r = (0,94). Mangrove is one of the coastal ecosystems with has high productivity for major contribution to the biota that live in it, one of which is bivalves. Ecologically, mangroves function as nursery ground, feeding ground and spawning ground for bivalves. This study aims to determine the type of bivalves found in mangrove ecosystems, to determine the value of the ecological index of bivalves, and to determine the relationship between bivalves and mangrove density and environmental parameters. This research was carried out in February-April 2021 at four different stations, namely Tanjung Bunga Beach, Muara Serata Pasir Padi, Golden Bridge Koala Beach, and Pangkal Balam Port. Data retrieval in this study used the line transect method which was drawn from the sea to the land, then three transect plots with a size of 10x10m in a zig-zag shape were placed with 9 replications of mangrove transect plots consisting of 3 sub-stations of observation. The results showed that there were 472 individuals of bivalves from 23 species and 9 families. The highest diversity index value is found at station 3, which is 3,187. The highest uniformity index is at station 4 with a total value of 0.267. The highest value dominance index is found at station 2, which is 0,405. The results of the principal component analysis (Principal Component Analysis) show that the value of the relationship of bivalve’s diversity with the value of mangrove density in this study shows a strong positive correlation with the value of r = (0,57). Meanwhile, the physico-chemical factors that affect the diversity of bivalves are salinity with a value of r = (0,95) and pH with a value of r = (0,94).
Geokimia dan Asesmen Pencemaran Logam Berat Cd, Cu dan Zn pada Sedimen Permukaan Estuari Baturusa, Bangka Mohammad Agung Nugraha; Irma Akhrianti; Fika Dewi Pratiwi; Agung Priyambada
Jurnal Kelautan Tropis Vol 26, No 1 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i1.16467

Abstract

 The Baturusa estuary receives inputs of organic and inorganic materials from several human activities along the river. The characteristics of heavy metals such as toxicity, resistance to decomposition, and ability to accumulate in aquatic biota can indirectly have a negative impact on the health of humans who consume marine biota. The research was conducted with the aim of studying the geochemical characteristics and assessing the level of heavy metal contamination of Cd, Cu and Zn in the sediments of the Baturusa Estuary. Heavy metal fractionation was analyzed by sequential extraction. The CF value of Cu and Zn metals shows a low level of contamination, while Cd shows a moderate level of contamination. I-Geo metal Cd is in the unpolluted to moderately polluted status, while Cu and Zn are not polluted. The PLI value indicates the unpolluted category. Geochemical fractionation of heavy metals Cd, Cu and Zn Baturusa Estuary is characterized by the presence of exchangeable, carbonate, reducible, oxidizable and residual fractions. Cu and Zn mainly tend to be stored/bound to the residual fraction (mainly derived from natural sources) while Cd is more bound to the non-residual fraction (mainly derived from human/anthropogenic activities). The risk evaluation of Cd metal is very high to high risk/hazard, while Cu and Zn are not at risk/hazardous to low. These conditions indicate that Cd metal may be harmful to the environment and has a higher mobility than other metals so that it has a higher risk of being available in the body of biota.  Estuari Baturusa menerima masukan bahan organik dan anorganik dari beberapa aktivitas manusia disepanjang sungai. Karakteristik logam berat seperti toksisitas, resisten terhadap dekomposisi, dan kemampuan akumulasi terhadap biota akuatik serta secara tidak langsung dapat berdampak negatif terhadap kesehatan manusia yang mengkonsumsi biota laut. Penelitian dilakukan dengan tujuan untuk mengkaji karakteristik geokimia dan menilai tingkat kontaminasi logam berat Cd, Cu, dan Zn pada sedimen Estuari Baturusa, Bangka. Fraksinasi logam berat dianalisis dengan ekstraksi bertahap. Nilai CF logam Cu dan Zn menunjukkan tingkat kontaminasi rendah (CF<1), sedangkan Cd menunjukkan tingkat kontaminasi sedang (1≤CF<3). I-Geo logam Cd berada pada status tidak tercemar hingga tercemar sedang (0<Igeo<1), sedangkan Cu dan Zn memiliki status tidak tercemar (Igeo 0). Nilai PLI menunjukkan kategori tidak tercemar (PLI<1). Fraksinasi geokimia logam berat Cd, Cu dan Zn Estuari Baturusa dicirikan dengan adanya fraksi exchangeable, karbonat, reducible, fraksi oxidizable, dan residual. Logam Cu dan Zn utamanya cenderung tersimpan/ terikat pada fraksi residual (utamanya berasal dari sumber alami) sedangkan Cd lebih terikat pada fraksi non residual atau non resisten (utamanya berasal dari aktivitas manusia/ antropogenik). Evaluasi resiko dari logam Cd yaitu resiko/ bahaya sangat tinggi hingga tinggi, sedangkan Cu dan Zn tidak beresiko/ berbahaya hingga rendah. Kondisi tersebut menunjukkan bahwa logam Cd kemungkinan berbahaya bagi lingkungan serta memiliki mobilitas lebih tinggi daripada logam lain sehingga beresiko lebih tinggi tersedia dalam tubuh biota.
Co-Authors Adelia Erika Agung Priyambada Agung Priyambada Eva Utami Fika Dewi Pratiwi Indra Ambalika Syari Lara Sukma Sadewi Mohammad Agung Nugraha Mu’alimah Hudatwi Mu’alimah Hudatwi Pamungkas, Aditya Salmia Septiani Suci Puspita Sari Umroh Umroh