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Sekretariat Jurnal Ilmu Perikanan Tropis Nusantara Gedung Fakultas Perikanan dan Ilmu Kelautan Univeritas Mulawarman Kampus Gunung Kelua, Jl. Gn. Tabur No. 1 Lt. 3 Samarinda (Kaltim) Telpon/Fax. (0541) 749482, 748372
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Ilmu Perikanan Tropis Nusantara
Published by Universitas Mulawarman
ISSN : -     EISSN : 29855462     DOI : https://doi.org/10.30872/
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
This journal covers broad tropical aquatic science which includes: aquatic biotas aquaculture molecular biology and ecology genetics biochemistry physiology ecology behavior evolutionary studies conservation assessment population dynamics mathematical modelling ecosystem analysis fish processing technology social, economic and policy aspects of fisheries.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 98 Documents
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Macrozoobenthos diversity at Istana Amal Beach, Penajam Paser Utara Regency, East Kalimantan Zabila, Mariana Afna; Adnan; Suryana, Irma
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/9z85tx28

Abstract

Istana Amal Beach, located in Penajam Paser Utara, East Kalimantan, is one of the region's ecotourism destinations. One of the key indicators of environmental quality in this area is the presence of macrozoobenthos. This study, conducted in December 2023, aimed to identify the types of macrozoobenthos present, calculate the diversity, evenness, and dominance indices, and assess the physical and chemical parameters of the water at Istana Amal Beach. A purposive sampling method was applied at two stations, selected based on different activity types in the area. The results revealed the presence of macrozoobenthos from two classes: Gastropoda and Bivalvia, comprising a total of 16 species. The ecological index values indicated a moderate diversity (H' = 2.2), high evenness (E = 0.8), and low dominance (D = 0.1), suggesting a relatively balanced ecosystem. Water quality measurements at both sampling points showed a salinity of 30 ppt, pH averaging 7.65, temperature of 30°C, and dissolved oxygen levels averaging 5.2 mg/L. The substrate at the site was identified as having a sandy texture.
Types of mesoplastic waste in the Manggar Beach tourism area, Balikpapan City, East Kalimantan Rifanka, Muhammad Akbar; Ritonga, Irwan Ramadhan; Eryati, Ristiana
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): 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/de3a7122

Abstract

Plastic waste poses a significant threat to the global environment, particularly in coastal and marine ecosystems. Among its various forms, mesoplastics, measuring between 5 and 25 mm have attracted considerable attention. This study aims to identify and analyze the types, weights, quantities, compositions, and densities of mesoplastics found along Manggar Beach, a tourist destination in Balikpapan City, East Kalimantan. Sampling was conducted in two periods: April (Period I) and August (Period II) of 2022. A purposive sampling method was applied using a 100-meter transect line divided into 5x5 meter lanes, followed by the placement of 1x1 meter quadrats. In Period I, four types of mesoplastics were identified as film, fiber, fragments, and styrofoam, while only film was detected in Period II. A total of 43 mesoplastic particles (weighing 9.45 grams) were recorded in Period I, compared to just 5 particles (0.15 grams) in Period II. By weight, styrofoam made up the largest proportion (49%) in Period I, whereas film accounted for 100% in Period II. The average mesoplastic density observed in this study was 0.38 particles per square meter.
Analysis of water fertility status based on the Trophic State Index (TSI) in the Air Hitam Urban Polder, Samarinda Ulu District, East Kalimantan Costarika, Stefhanie Stevi; Hamdhani, Hamdhani; Masruhim, Amir
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): 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/q6w58353

Abstract

Waters near urban centers are highly vulnerable to pollution, a condition likely occurring in the Air Hitam Polder in Samarinda, which receives inflow from urban drainage and is surrounded by intense human activity. This study aimed to determine the Polder’s trophic status using the Carlson Trophic State Index (TSI) based on water transparency, total phosphate, and chlorophyll-a, analyzed spatially and temporally. It also assessed general water quality and examined the relationship between nutrients (phosphate, nitrate, ammonia) and chlorophyll-a. Measurements at five stations included transparency, chlorophyll-a, DO, EC, TDS, temperature, pH, and turbidity, with laboratory analyses for phosphate, nitrate, and ammonia. Sampling was conducted six times. Results show Station 3 had the highest TSI (75.25), likely due to its location near the main inlet carrying organic and inorganic materials. Temporally, the Polder was classified as hypereutrophic, with TSI values >60 at all stations. Phosphate had the strongest relationship with chlorophyll-a. Several parameters (DO, EC, TDS) met water quality standards, while others (phosphate, nitrate, ammonia, temperature, pH, transparency, turbidity) exceeded limits. Overall, current conditions are unsuitable for aquatic life, indicating the need for improved management to restore the ecological function of the Air Hitam Polder.
Water quality assessment using the STORET method and formulation of pollution control strategies in the Sangatta River, East Kutai Regency, Indonesia Sandra, Novita Dwi; Rizal, Samsul; Hamdhani, Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/1m2ktd59

Abstract

The Sangatta River, located in East Kutai Regency, East Kalimantan, is a vital water resource that plays a significant role in supporting both local communities and ecosystems. However, the increasing pressure on this river necessitates regular monitoring to assess its water quality status. This study aims to assess and analyze the water quality of the Sangatta River, determine its water quality status, and identify potential measures for controlling water pollution in the river. The research employed the STORET method. Based on this method, the results were as follows: -22 (upstream 1), -34 (upstream 2), -50 (downstream 1), -54 (downstream 2), and -40 (downstream 3). These findings indicate that the Sangatta River is classified as heavily polluted, with an overall score of -40 according to the STORET method. Efforts to control river water pollution should focus on social and institutional aspects, particularly by enhancing community participation in pollution control efforts for the Sangatta River.
Visitor Perceptions of the Educational Fish Pond Tourism Site in Sumber Rejeki Hamlet, Loh Sumber Village, Loa Kulu, East Kalimantan Saputra, Aji Muhammad Dwin; Purnamasari, Elly; Abdusysyahid, Said; Syafril, Muhammad
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): 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/nfy48z65

Abstract

The Educational Tourism Fish Pond of Sumber Rejeki Hamlet, Loh Sumber Village, serves as a potential medium for introducing fisheries-related activities, including aquaculture, aquatic resource management, and the sustainable application of fisheries technology to the community. The objective of this study was to examine visitors’ perceptions of the educational tourism fish pond in Sumber Rejeki Hamlet, Loh Sumber Village, Loa Kulu Subdistrict. The research was conducted from November to December 2024 using the accidental sampling method. The respondents consisted of 45 visitors to the tourism site. Data were analyzed using descriptive analysis with a Likert scale measurement. The results indicate that visitors’ perceptions of the educational tourism fish pond fall into the “very good” category (87.05), within the score range of 87–103. This evaluation was based on the following indicators: tourism object (13.38, very good), accessibility (7.87, good), facilities (39.64, very good), information and promotion (17.29, very good), and management services (8.87, good).
Perceptions of fishers in the Mutiara Indah Teritip Joint Business Group (KUB) on the Role of the Food, Agriculture, and Fisheries Agency (DP3) in East Balikpapan District, Balikpapan City Tinambunan, Febriani; Sugiharto, Eko; Abdusysyahid, Said
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): 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/j3srkq86

Abstract

Although fisheries institutions have developed, most remain small-scale operations managed traditionally, with weak management practices and limited access to information and technology. Understanding community perceptions is therefore essential. This study aims to examine fishers’ perceptions, both cumulatively and partially, within the Joint Business Group (Kelompok Usaha Bersama/KUB) Mutiara Indah Teritip regarding the role of the Food, Agriculture, and Fisheries Agency (Dinas Pangan, Pertanian dan Perikanan/DP3) in East Balikpapan District, as well as to identify the challenges faced by DP3 in this area. The research was conducted from September 2024 to May 2025 in East Balikpapan District, Balikpapan City. A total of 17 respondents were selected using purposive sampling. The results showed that the cumulative perception score of fishers in KUB Mutiara Indah Teritip regarding the role of DP3 reached 40.18, which falls within the range of 35.02–45.00 and is categorized as high. Similarly, the partial perception scores were also categorized as high, with indicator values as follows: program development for fishing activities (8.29), policy formulation for fisheries (8.35), supervision of fishing permits (8.41), guidance and training for fishers (7.88), and the application of fishing technology (7.24).
The concentration of Mn and Fe metals in water and sediment of the Sanga-Sanga River, East Kalimantan Province Larissa, Astrid Attha; Ghitarina, Ghitarina; Hamdhani, Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): 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/cb0p9x16

Abstract

This study aimed to analyze the concentrations of manganese (Mn) and iron (Fe) in both water and sediment samples from the Sanga-Sanga River, Kutai Kartanegara Regency, East Kalimantan Province. The research was conducted from October to December 2024 at three stations representing the upstream, midstream, and downstream sections of the river. Sampling was performed using a purposive method based on site characteristics, and analyses were carried out both in situ and at the Water Quality Laboratory, Faculty of Fisheries and Marine Science, Mulawarman University. The concentrations of Mn and Fe were compared with the Indonesian river water quality standard (Government Regulation No. 22 of 2021) and sediment quality guidelines established by the Australian and New Zealand Environment and Conservation Council (ANZECC, 2000). The results showed that Mn concentrations in river water ranged from 0.325 to 1.181 mg/L, exceeding the permissible limit of 0.1 mg/L, while Fe concentrations ranged from 0.3475 to 0.468 mg/L, surpassing the standard of 0.3 mg/L. In sediments, Mn concentrations ranged from 42.38 to 964.47 mg/kg and Fe concentrations from 11,341.23 to 50,344.72 mg/kg, with several stations exceeding the ANZECC guideline limits. Higher concentrations were generally found at midstream and downstream stations, particularly in areas influenced by coal mining, barge transport, and ship repair activities. These findings indicate that the Sanga-Sanga River has experienced notable contamination by Mn and Fe, primarily due to anthropogenic activities related to coal industry operations. Continuous monitoring, stricter waste management, and the implementation of pollution control measures are recommended to prevent further environmental degradation and protect aquatic ecosystems.
Analysis of the Seawater Quality Index in the Marine Waters of Bontang City, East Kalimantan Kurniawan, Burhan; Rizal, Samsul; Mandang, Idris; Pagoray, Henny; Sitorus, Saibun; Hamdhani, Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): 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/gz5bk083

Abstract

Seawater quality is a key factor in determining the health of coastal ecosystems and the sustainability of marine resources. Anthropogenic activities such as the discharge of industrial and domestic waste, marine transportation, and intensive fishing practices can influence the physical, chemical, and biological parameters of seawater. Research on seawater quality in the marine waters of Bontang City has been conducted, but remains very limited in number. This study aims to analyze the Seawater Quality Index (IKAL) in the marine waters of Bontang City. The analytical method employed refers to the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia No. 27 of 2021. The results indicate that the average Seawater Quality Index (IKAL) in Bontang City during the second semester of 2023 was 72.69, which is categorized as good condition.

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