Article Per Year (5 Year)
p-Index From 2019 - 2024
0.751
P-Index
This Author published in this journals
All Journal Ilmu Perikanan Tropis Nusantara Jurnal MAIYAH Jurnal Hidrografi Indonesia
Rafii, Akhmad
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Environmental Science Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Bioakumulasi kadmium (Cd), timbal (Pb), dan tembaga (Cu) pada gastropoda di Desa Kersik, Kabupaten Kutai Kartanegara, Kalimantan Timur: Bioaccumulation of Cadmium (Cd), Lead (Pb), and Cadmium (Cu) in Gastropods in Kersik Village, Kutai Kartanegara Regency, East Kalimantan Muslim, Izza Dzikriyah; Rafii, Akhmad; Ghitarina, Ghitarina
Nusantara Tropical Fisheries Science (Ilmu Perikanan Tropis Nusantara) Vol. 2 No. 1 (2023): Ilmu Perikanan Tropis Nusantara
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jipt.v2i1.238

Abstract

Heavy metals are compounds that can affect the quality of a waters. Various kinds and types of heavy metals that enter and settle in sediments can cause diversity to decrease to the extinction of organisms in the waters. This study was aimed to determine the content of Cd, Pb, and Cu accumulated in water, substrate, and gastropods obtained from Kersik Village, Kutai Kartanegara Regency, East Kalimantan. Samples of water, substrate, and gastropods were collected from 4 stations with 3 repetitions. Water samples, substrates, and gastropods were analyzed using AAS. Concentration ranges of Cd, Pb, and Cu in water were 0.003 - 0.011 mg/L; 0.161 - 0.731 mg/L; and 0.007 - 0.009 mg/L, respectively. The concentration ranges of Cd, Pb, and Cu on the substrate were 0.021 - 0.182 mg/kg; 19.5 - 31.12 mg/kg; and 14.29 - 15.47 mg/kg, respectively. In gastropods, the range of Cd concentrations was 0.509 - 0.675 mg/kg, while for Pb and Cu were 15.96 - 21.52 mg/kg and 57.78 - 92.4 mg/kg, respectively. The concentration of Pb in gastropods at all stations has exceeded the quality standard based on SNI-7387-2009, while the concentration of Cu in gastropods at all stations has also exceeded the quality standard based on BPOM No.03725/B/SK/89. Bioconcentration Factor (BCF) of organisms to sediment (BCFo-s), shows the ability to accumulate Cu in Gastropods which is higher than Cd and Pb. Bioconcentration Factor (BCF) analysis of organisms to water (BCFo-w), showed that the accumulation of Cd, Pb, and Cu were in the low, medium, to high categories. The average comparison of concentrations of the three heavy metals at each observation station was not significantly different (sig. > 0.05).
Concentration of Heavy Metal Pb and Cu in Reef Fish at the Waters of Miang Besar Island in Kutai Timur Regency Pajar, Zulkifli; Rafii, Akhmad; Ghitarina, Ghitarina
Nusantara Tropical Fisheries Science (Ilmu Perikanan Tropis Nusantara) Vol. 2 No. 2 (2023): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jipt.v2i2.796

Abstract

Miang Island is a transportation route for coal ships and a place for loading and unloading coal, then there are also oil palm companies around this island. On this island there are also still islanders who carry out household activities in this area, such as washing activities, thus producing household waste in the waters on this island. Therefore, community activities carried out on this island can contribute to the burden of pollution of waters and reef fish in these waters, therefore it is necessary to conduct research on heavy metal levels that have contaminated organisms in these waters related to the pollution conditions that occur. This research was conducted in February 2023 in the waters of miang island and analyzed water quality and heavy metal content in the water quality laboratory and soil laboratory of mulawarman university. The parameters that will be observed are the analysis of heavy metals lead (Pb) and copper (Cu) found in reef fish meat and statistical analysis using the Chi-Square test by comparing heavy metal content in reef fish against water quality data. In this study, reef fishes that have been analyzed are Lutjanus decassatus, Pentapodus caninus, Ephnephlesu ongus, Lethrinus erythropetrus, Balistapus undulatus, Gymnocranius microdon, Plectropomus leopardus, and Priacanthus meeki. All fish species contain heavy metals lead (Pb) and copper (Cu), this can be caused by activities carried out by local communities that can disturb water conditions and have an impact on fish, In the Chi-square analysis that has been carried out on water quality at each station on Miang Island, the results obtained water quality gives an influence on heavy metals in the bodies of reef fish that have been caught in this study. This can be caused by water quality that is affected by heavy lead (Pb) and copper (Cu) from human activities in these waters, such as ship loading and unloading activities, and ship transportation routes.
Jenis dan Kelimpahan Mikroplastik pada Air Laut Pantai Lamaru Kecamatan Balikpapan Timur Provinsi Kalimantan Timur Sarita, Greselia; Mustakim, Moh; Rafii, Akhmad
MAIYAH Vol 2 No 1 (2023): Maiyah : Vol.2 No.1 Maret 2023
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.12 KB) | DOI: 10.20884/1.maiyah.2023.2.1.8250

Abstract

Microplastics have attracted worldwide attention because of their potential threat to marine ecosystems. The purpose of this study was to determine the abundance and types of microplastics on Lamaru beach. Studies were conducted on the abundance, size and composition of microplastics in seawater. The types of microplastics in the seawater at Lamaru beach are fiber, fragments and films. The total abundance of microplastics in the seawater at Lamaru beach is 4,434 particles/L. Fragments are the most common type of microplastic found in the coastal waters of Lamaru (3,036 particles/L), followed by films (834 particles/L), and fiber (564 particles/L). The results of statistical data analysis using the Kruskal-wallis test showed that there was no significant difference between types of microplastic and its values is Pvalue ((0,179 >α (0,05)). Microplastics are known to originate from seawater currents from the Makassar Strait and industrial activities around the coast.
Studi Pola Sebaran Sedimen Dasar Perairan Menggunakan Model Hidrodinamika 2 Dimensi Di Pantai Biru, Desa Kersik, Kecamatan Marangkayu, Kutai Kartanegara: Studi of The Distribution Pattern of Bottom Sediments in Waters Using A 2-Dimensional Hydrodynamic Model in Blue Beach, Kersik Village, Marangkayu District, Kutai Kartanegara Saputra, Chairil Amin; Yuniarti, Yuniarti; Harsono, Gentio; Subiyanto, Subiyanto; Rafii, Akhmad
Jurnal Hidrografi Indonesia Vol 6 No 1 (2024): Jurnal Hidrografi Indonesia
Publisher : Pusat Hidro-Oseanografi TNI Angkatan Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62703/jhi.v6i1.63

Abstract

Fenomena Sedimentasi dan Abrasi pantai di Desa Wisata Tanjung Kersik Kecamatan Marangkayu Kabupaten Kutai Kartanegara telah menjadi permasalahan yang serius seperti merusak taman bermain, gazebo, dan faslitas wisata lainnya. Hal tersebut mengganggu estetika pemandangan dan mengurangi rasa nyaman pengunjung yang datang ke lokasi wisata. Studi ini bertujuan untuk mengetahui pola sebaran sedimen dasar laut dalam mengatasi abrasi dan sedimentasi terutama dalam membangun gorin dan bangunan penahan gelombang seperti Geobag. Data yang digunakan adalah data batimetri, tinggi pasang surut, dan angin. Pengolahan data menggunakan model hidrodinamika 2 dimensi untuk mendapatkan deskripsi perubahan ketebalan sedimen dasar laut yang diakibatkan oleh proses transport sepanjang pantai yang diakibatkan dari arus susur pantai baik dari arus pasang surut maupun dari gelombang yang diakibatkan oleh angin. Hasil penelitian menunjukkan bahwa terjadinya abrasi dan sedimentasi ditandai dengan perubahan bed level thickness change pada area dekat pantai dimana telah terbangun 2 groin di sisi kanannya.  Proses transpor sedimen ini lebih mudah terjadi karena didukung faktor faktor seperti geometri pantainya yang membentuk sudut 30° dengan arah utara dan arah angin yang menjadi arah datangnya gelombang utama (166°), sehingga gelombang datang menciptakan arus susur pantai lebih kuat.
Co-Authors Gentio Harsono Ghitarina Ghitarina, Ghitarina Muslim, Izza Dzikriyah Mustakim, Moh Pajar, Zulkifli Saputra, Chairil Amin Sarita, Greselia Yuniarti Yuniarti