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All Journal BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology International Journal of Science and Engineering (IJSE) Jurnal Ilmu Lingkungan Journal of Marine Research Jurnal Sains dan Teknologi JURNAL ENGGANO JFMR (Journal of Fisheries and Marine Research) Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Biologi Tropis Jurnal Laut Khatulistiwa Jurnal Ilmu Kelautan Kepulauan BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Kumawula: Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi Insani Jurnal Inovasi Pendidikan dan Sains Jurnal Teknologi Lingkungan Lahan Basah Ilmu Perikanan Tropis Nusantara Jurnal Pengabdian Pada Masyarakat Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Journal of Fisheries & Marine Jurnal Perikanan
Irwan Ramadhan Ritonga
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Journal : Jurnal Perikanan

 1 
ANALISIS KANDUNGAN TIMBAL (Pb) PADA SEDIMEN MANGROVE DI KAWASAN MANGROVE CENTER GRAHA INDAH, BALIKPAPAN, KALIMANTAN TIMUR Anindia Resty Syafira; Irwan Ramadhan Ritonga; Mohammad Sumiran Paputungan; Irma Suryana
Jurnal Perikanan Unram Vol 13 No 1 (2023): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v13i1.465

Abstract

IDENTIFIKASI JENIS DAN KEPADATAN SAMPAH LAUT DI PANTAI MUTIARA INDAH DAN PELANGI KABUPATEN KUTAI KARTANEGARA Antazilla Rindyani; Ristiana Eryati; Irwan Ramadhan Ritonga
Jurnal Perikanan Unram Vol 13 No 4 (2023): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v13i4.642

Abstract

Sampah laut merupakan salah satu permasalahan lingkungan di wilayah pesisir. Sampah laut di wilayah pesisir dapat mempengaruhi ekosistem pesisir dan menurunkan kualitas lingkungan. Tujuan penelitian ini adalah untuk mengetahui jenis dan jumlah, berat total, kepadatan, persentase makro, meso dan persentase subtransek pada faktor hidrooseanografi sampah makro dan meso di Pantai Mutiara Indah dan Pelangi Kabupaten Kutai Kartanegara. Metode pengambilan sampel sampah makro dan meso yang digunakan adalah metode purposive sampling dan random sampling. Pengambilan sampel sampah makro dilakukan dengan membuat garis transek sepanjang 100 meter sejajar garis pantai, dibagi menjadi 5 garis dengan ukuran subtransek 5 x 5 meter. Sedangkan transek sampah meso dibagi menjadi 25 kotak dengan subtransek berukuran 1 x 1 meter. Berdasarkan hasil analisis diketahui komposisi sampah makro dan meso adalah plastik, karet, logam, kaca dan kayu sebanyak 88 item (makro) dan 58 item (meso). Berat total sampah makro masing-masing sebesar 1,865 g/m2 dan meso 85 g/m2. Tidak terdapat pengaruh yang nyata (p>0,05) antara lokasi penelitian yang berbeda terhadap berat, jumlah, kepadatan dan persentase sampah laut di kawasan Pantai Mutiara Indah dan Pantai Pelangi. Persentase jenis sampah makro plastik tertinggi masing-masing terdapat di Mutiara Indah (94%) dan Pantai Pelangi (65%). Sampah Meso juga didominasi oleh jenis plastik yang masing-masing terdapat di Mutiara Indah (77%) dan Pantai Pelangi (98%). Nilai persentase sub-transek menunjukkan bahwa sebaran sampah makro dan meso mungkin dipengaruhi oleh arus laut, pasang surut, dan kemiringan pantai. Sumber utama sampah makro dan meso di pantai Mutiara Indah dan Pelangi berasal dari aktivitas pengunjung yang membuang sampah di sekitar pantai.
KELIMPAHAN MAKROZOOBENTOS DI PANTAI TANAH MERAH SAMBOJA KUTAI KARTANEGARA KALIMANTAN TIMUR Brigitha Anjely Agatha Jani; Irma Suryana; Mohammad Sumiran Paputungan; Irwan Ramadhan Ritonga
Jurnal Perikanan Unram Vol 14 No 3 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i3.904

Abstract

Samboja beach is one of the coastal areas in Kutai Kartanegara Regency, which has various fisheries and marine resources such as macrozoobenthos. One of the ecological functions of macrozoobenthos is that it is a biological bioindicator in the waters and transfers energy in the food chain. This study aims to determine the type and abundance of macrozoobenthos, sediment texture type, organic carbon, nitrate and phosphate content, sediment type and abundance of macrozoobenthos at Tanah Merah Beach Samboja. Sediment samples were taken at the surface (0-10 cm) by placing quadrant plots on a 120 m long transect line (50x50 cm²). 50 macrozoobenthos species were found, consisting of Gastropoda, Bivalvia and Schapopoda. Macrozoobenthos abundance ranged from 60 to 268 ind/m2. Sequential ecological indices of diversity included the medium category with high uniformity and low dominance. The sediment texture at points near the coast was sandy loam while towards the sea textured sand. Sediment content in organic carbon ranged from 0.41% to 1.18% (very low), nitrate between 6.63 and 16.69 mg/L (high) and phosphate from 29.01 to 71.27 mg/L (high). There was a positive relationship with a moderate correlation between organic carbon and macrozoobenthos abundance. The relationship between nitrate and macrozoobenthos abundance was a low correlation. In contrast, a positive correlation was found between phosphate and macrozoobenthos abundance. Water quality is still normal and supports the survival of macrozoobenthos.
MACROZOOBENTHOS ABUNDANCE IN THE MANGROVE AREA OF TANAH MERAH SAMBOJA KUTAI KARTANEGARA EAST KALIMANTAN Irwan Ramadhan Ritonga; Irma Suryana; Elisar Elisar
Jurnal Perikanan Unram Vol 14 No 3 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i3.975

Abstract

Tanah Merah Beach is a coastal area of Samboja in East Kalimantan, which is a local tourist destination. The association of coastal ecosystems can be shown by macrozoobenthos, as one of the biota components in coastal areas to mangroves. This study identifies the species, calculates the abundance, and analyses the ecological index of macrozoobenthos, as well as looking at the relationship between nutrients and sediment texture with the number of macrozoobenthos found. The purpose of this research is to determine the condition of nutrients in the sediment substrate to its abundance in the mangrove ecosystem area. Sampling was conducted at three points based on the percentage of mangrove canopy cover in the Monmang version 2.0 application, with each point represented by 3 quadrant points measuring 0.25 m2. The results showed that the percentage of mangrove canopy cover was categorised as slight-moderate, the abundance of individuals was dominated by the Gastropoda class with 9 species and a small proportion of the Bivalve class. The ecological indices in order are the Diversity Index (H') in the low category, Diversity (E) in the low category, and dominance (C) found Cerithidae sp species dominating each point. The highest abundance was found at radius 2 canopy cover 77.24 - 83.13%. Nutrient content in sediment, nitrate (1.00-16.25 mg/L), phosphate (29.01-83.94 mg/L), organic carbon (2.23-3.24%) with confirmed sediment texture of sandy loam. Nitrate content ranged from 1.00-16.25 mg/L, Phosphate 34.65 - 44.51 mg/L and Organic carbon 2.23-3.24% (per mg) in the sediment and a significant effect of phosphate content on Macrozoobenthos abundance was found in the correlation test results.
ANALYSIS OF Fe, Mn, AND Zn CONCENTRATIONS IN MANGROVE SEDIMENTS ALONG THE SOMBER RIVER IN BALIKPAPAN CITY Ashar, Andini Aulia Ayuk; Paputungan, Mohammad Sumiran; Hamdhani, Hamdhani; Ritonga, Irwan Ramadhan
Jurnal Perikanan Unram Vol 15 No 1 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i1.1408

Abstract

Somber River is one of the rivers with mangrove ecosystem in Balikpapan city. The high human activity in Somber River area may produce waste and heavy metal pollution in mangrove ecosystem, especially in sediment. The purpose of this study is to determine the concentration of Fe, Mn and Zn in mangrove sediments. In addition, the values of pollution indices such as contamination level (TK), pollution load index (IBP) and geoaccumulation index (I-Geo) in sediments are also determined along Somber river, Balikpapan city. The research method used in this study is purposive sampling. Sediment samples were taken from 9 sampling points along Somber river. Sediment samples were deconstructed using acid and analyzed using the Atomic Absorption Spectrophotometer (AAS) Aurora AI 1200 to determine the concentration of Fe, Mn, and Zn based on dry weight in µg/g. Based on the analysis, it was found that the Fe concentration in the sediment ranged from 5403 to 12268 µg/g with an average of 9462 ± 2294 µg/g. In Mn, the concentration value was between 2,25 and 23,2 µg/g with an average of 11,4 ± 7,43 µg/g. Then, the Zn concentration was between 16,6 and 61,3 µg/g, with an average of 43,4 ± 17,4 µg/g. The varying concentrations of Fe, Mn and Zn might be related to several human activities, such as industrial activities, boat docks, settlements, fisheries, ports and metal distribution from the Somber river. The concentrations of Mn and Fe at all research stations were lower than the sediment quality standards, except for Fe. The level of Fe, Mn and Zn contamination in sediments was low (TK<1) and not polluted (IBP<1) and the geoaccumulation index (I-geo) was not polluted to polluted (0<I-geo<1).
COMPARISON OF MACROZOOBENTHOS ABUNDANCE BETWEEN COASTAL AND MANGROVE AREAS OF TANJUNG LIMAU KUTAI KARTANEGARA DISTRICT Simanihuruk, Dorsen Hotma Tua; Paputungan, Mohammad Sumiran; Ritonga, Irwan Ramadhan
Jurnal Perikanan Unram Vol 15 No 3 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i3.1508

Abstract

Macrozoobenthos have played an important role in coastal ecosystems, especially in beaches and mangrove areas, as indicators of environmental health and as important components of the food chain. However, the presence of human activities such as industrial waste, households, fisheries and agriculture could affect the abundance of macrozoobenthos in coastal areas. The purpose of this study was to assess and analyze the type, abundance, diversity, uniformity and dominance of macrozoobenthos and sediment substrate conditions in the beach and mangrove areas in Tanjung Limau village, Kutai Kartanegara Regency. This research was conducted from December to March 2024. This research method uses descriptive methods with sampling techniques using purposive random sampling. Macrozobenthos sampling sites were divided into 2 (two) stations. Station 1 was located at beach area, while station 2 was located in the mangrove ecosystem area. The results showed that the abundance of macrozoobenthos in the mangrove area (13 species) was higher compared to the beach (18 species), with groups of snails and bivalves. Abundance at station 1 (43.3 ind/m²) was lower than at station 2 (58.0 ind/m²). The diversity index value at station 1 (2.16) and station 2 (2.57) was classified as moderate. Uniformity at stations 1 and 2 was 0.84 and 0.87 (high category), respectively. Then the dominance index values found at stations 1 and 2 were 0.17 and 0.10 (non-dominant category), respectively. The sediment texture in the coastal area of Tanjung Limau at both stations 1 and 2 is a clayey loam, which is one of the main causes of the differences in macrozoobenthos abundance.
Co-Authors Adnan . Adnan Adnan Adnan Adnan Agathajani, Brigitha Anjeli Ahmad Ahmad Ahmad Ahmad Ahmad Ahmad Akbar, Rizali Akhmad Rafii Alimin, M Andi Fitri Sakmiana Andini, Ardita Dwisepti Anindia Resty Syafira Antazilla Rindyani Anugrah Aditya Budiarsa, Anugrah Aprilia, Dita Apriliyani, Vivi Arwadi, Mohammad Tri Arwadi, Tri Ashar, Andini Aulia Ayuk Ayla Nursari Boedi Hendrarto Brigitha Anjely Agatha Jani Bulan, Dewi Embong Clara Frecilia Patiung Dewi Embong Bulan Dharma Saputra, Dharma Dharmawan, I Wayan Eka Elisar Elisar Elisar, Elisar Eryati, Ristiana Fadhila Nurhayati Fahrurozi, Zidhan Muhammad Firman , Firman Firman Firman Hamdhani Hamdhani Hamdhani, Hamdhani Intan Sari Dewi Irma Suryana Irma Suryana Irma Suryana Irma Suryana Iwan - Suyatna Iwan Suyatna Iwan Suyatna Jani, Brigitha Anjely Agatha Khoirunnisa, Nanda Kusumaningrum, Widya Loto, Naomi Main, Aminullah Aminul Manukrante, Alvionita Muchlis Effendi Mufidah, Fitriatul Muthy, Najla Adellia Novia, Rani Nur Hasanah Nurdiansah, Doni Nurfadilah Nurfadilah Nurfadilah Nurfadilah Nurfadilah Nurfadilah Paputungan, Mohammad Sumiran Rafi’i, Ahmad Rafi’i, Ahmad Rani Novia Rani Novia Renyaan , Jeverson Rifanka, Muhammad Akbar Ristiana Eryati Ristiana Eryati Ristiana Eryati Ristiana Eryati Ristiana Eryati Ristiana Eryati S. Supriharyono Saputra, Muhammad Ikhsan Silviana Silviana Simanihuruk, Dorsen Hotma Tua Soenarih, Asih Suryana, Irma Susi Rahmawati Suyatna , Iwan Tobing, Binto Iskandar Hasibuan Widya Kusumaningrum Widya Kusumaningrum