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Akuatik Tropis: Journal of Tropical Aquatic Resource Management
Published by Universitas Tanjungpura
ISSN : 30637414     EISSN : -     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
Akuatik Tropis: Journal of Tropical Aquatic Resource Management is an open-access academic journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Social Economy Fisheries) Ecology (Freshwater, Marine, and Brackishwater) Biology (Fish, Mollusk, Crustacean, Plankton, Mammals, Coral reefs) Oceanography
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 24 Documents
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Population Dynamics Of Hunt Mackerel (Scomberomorus commerson) Landed At The Sukadan Fish Landing Base, Kayong Utara Regency, West Kalimantan Silma, Asyifa Adzania; Padmarsari Soetginya, Widadi; Magrima Anzani, Yunita
Akuatik Tropis: Journal of Tropical Aquatic Resource Management Vol 3, No 2 (2025): Jurnal Akuatik tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatik tropis.v3i2.92807

Abstract

Mackerel is one of the most frequently landed fish species and is in high demand, both in local and international markets, thanks to its delicious meat and high price. Catch data shows a significant increase for mackerel, from 293,409 tons in 2019 to 488,300 tons in 2022. However, continuous mackerel fishing can have an impact on the population of this fish. Therefore, research is needed to understand the dynamics of the mackerel population, including aspects of growth, mortality, and exploitation levels. The purpose of this study was to analyze the distribution of fish length, the relationship between length and weight, growth rate, and mortality rate. The study was preceded by a field survey to determine the condition of the location and the type of fishing gear used. Sampling was carried out randomly from fishermen. The data was processed using Microsoft Excel and FISAT 2 applications for further analysis, which included the frequency distribution of length, the relationship between length and weight, and growth parameters. The variables observed included the fork length and weight of mackerel samples and the average water temperature obtained from NASA satellite imagery data. During the research in September-November 2024 located at PPI Sukadana, Kayong Utara Regency, a total of 233 mackerel fish were taken as samples. The frequency of fish length was grouped into 9 classes with a length interval of 4 cm. The length of the mackerel found ranged from 51-86 cm. The highest length class was in the range of 71-74 cm with a total of 35 fish, while the lowest class was in the range of 83-86 cm with 12 fish. Most mackerel had a length of between 59-74 cm, with a total of 101 fish. Analysis of the relationship between the length and weight of mackerel was carried out through regression, which showed that the growth pattern of mackerel was negative allometric. With the equation W = 0.0867L ²,46, it was found that the increase in fish length occurred faster than the increase in weight. Growth parameters were analyzed based on the Von Bertalanffy equation, where the asymptotic length (L∞) was found to be 85.05 cm, with a growth coefficient (K) of 0.51 per year. Mortality and exploitation analysis shows total mortality value (Z) of 1.62 per year, natural mortality (M) of 0.87 per year, and mortality due to fishing (F) of 0.74 per year, and exploitation rate (E) of 0.46 per year. This shows that exploitation in the utilization or capture of mackerel is included in the category of utilization that is still within safe limits (Balancedfishing).
Population Dynamics Of Eel Tail Catfish (Plotosus canius) Caught By Fishermen And Landed At Jungkat Fish Landing site, Mempawah Regency Tite, Christianus Teging; Padmarsari Soetignya, Widadi; Wira Hadinata, Fitra
Akuatik Tropis: Journal of Tropical Aquatic Resource Management Vol 3, No 2 (2025): Jurnal Akuatik tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatik tropis.v3i2.93247

Abstract

This research aims to determine the dynamics of the Striped Eel-Catfish (Plotosus canius) population, which includes length frequency distribution, length and weight relationship, growth rate, mortality rate, and exploitation rate. This research was conducted in February"“May at TPI Jungkat, Mempawah Regency. The number of samples used was 354 fish with a length range of 15"“77 cm. The research results showed that the thornfish (Arius maculatus) caught consisted of nine different size classes and belonged to the adult fish age group. The relationship between length and weight of spiny fish is negative allometric, with an asymptote length (L∞) value of 65.63 cm and a growth rate coefficient of 0.94 per year. Total mortality rate (Z): 2.65 per year; natural mortality (M): 1.33 per year; fishing mortality (F): 1.32 per year; and exploitation rate (E): 0.5 per year.
KEANEKARAGAMAN JENIS IKAN DI KAWASAN BENDUNGAN MEROWI DESA SEMAYANG KECAMATAN KEMBAYAN KABUPATEN SANGGAU Andika, Arya; Padmarsari Soetignya, Widadi
Akuatik Tropis: Journal of Tropical Aquatic Resource Management Vol 3, No 2 (2025): Jurnal Akuatik tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatik tropis.v3i2.91907

Abstract

Penelitian keanekaragaman jenis ikan di Kawasan Bendungan Merowi Desa Semayang Kecamatan Kembayan Kabupaten Sanggau terdiri dari empat stasiun pengamatan pada bulan April-Mei 2024. Pemilihan stasiun pengamatan secara terpilih (purposive sampling) yaitu berdasarkan pertimbangan terwakili keadaan perairan. Hasil penelitian terdapat 18 jenis dari 11 famili dari ikan yang berhasil dikumpulkan berjumlah 156 ekor ikan menggunakan tajur, serok, bubu dan pukat. Hasil pengamatan menunjukan adanya keragaman jenis ikan yang diperoleh di Kawasan Bendungan Merowi. Stasiun 1 tercatat ada 9 spesies dari 6 famili, stasiun 2 ditemukan 12 spesies dari 9 famili, di stasiun 3 ditemukan 15 spesies dari 10 famili dan pada stasiun 4 ditemukan 14 spesies dari 10 famili. Kelimpahan jenis ikan tertinggi pada setiap stasiun berasal dari famili Cyprinidae, yaitu masingmasing pada stasiun 1,2,3 dan 4 adalah 55.17%, 53.38%, 61.36% dan 52.63%. indeks keanekaragaman pada stasiun 1,2,3 dan 4 berada pada kategori sedang dengan kisaran yaitu nilai 1,99, 2,03, 2,29 dan 2,34. Sedangkan untuk Indeks keseragaman berada dalam katagori merata dengan nilai secara berturut-turut yaitu 0,60, 0,62, 0,61 dan 0,58. sedangkan indeks dominasi berada pada kondisi stabil dan tidak ada jenis ikan tertentu yang mendominasi dengan nilai pada setiap stasiun 0,17, 0,15, 0,11 dan 0,12.
Biologi Reproduksi Ikan Kiper (Scatophagus argus) Di Muara Sungai Duri Kabupaten Bengkayang Kalimantan Barat Simamora, Rini Amelia
Akuatik Tropis: Journal of Tropical Aquatic Resource Management Vol 3, No 2 (2025): Jurnal Akuatik tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatik tropis.v3i2.96553

Abstract

Abstrak Muara Sungai Duri merupakan salah satu ekosistem estuari di Indonesia yang memiliki karakteristik fisik dan kimia yang fluktuatif. Kondisi ini berpengaruh terhadap biologi reproduksi berbagai organisme salah satunya ikan kiper yang menjadi sumber gizi masyarakat lokal. Tujuan penelitian ini untuk mengetahui biologi reproduksi ikan kiper meliputi rasio kelamin, tingkat kematangan gonad, indeks kematangan gonad, indeks hepatosomatik, dan fekunditas. Penelitian dilakukan selama dua bulan dari Februari "“ Maret 2025. Pengambilan sampel ikan dilakukan dengan metode purposive sampling berdasarkan habitat ikan kiper. Jumlah sampel yang diamati selama penelitian sebanyak 87 ekor, terdiri dari 28 ekor jantan dan 59 ekor betina dengan rasio kelamin yang didapatkan 1:2. Tingkat kematangan gonad (TKG) yang diperoleh baik jantan dan betina adalah TKG I-V. Nilai Indeks Kematangan Gonad (IKG) ikan jantan berkisar antara 0,16-5,81% dan nilai ini lebih kecil jika dibandingkan dengan IKG ikan betina yang berkisar 0,16-14,5%. Hasil perhitungan fekunditas total ikan kiper secara keseluruhan berkisar antara 9.030-73.203 butir telur. Fekunditas relatif terhadap panjang total ikan kiper berkisar antara 117-1.018 butir telur, sedangkan fekunditas relatif terhadap berat total ikan berkisar antara 8.089-17.448 butir telur. Kata Kunci: Biologi reproduksi, Scatophagus argus, Muara Sungai Duri Abstract A concise and factual abstract is required. Each paper should be provided with an abstract of about The Duri River estuary is one of Indonesia's estuarine ecosystems with fluctuating physical and chemical characteristics. These conditions affect the reproductive biology of various organisms, including the kiper fish, which is a source of nutrition for the local community. The objective of this study is to investigate the reproductive biology of the kiper fish, including sex ratio, gonadal maturity level, gonadal maturity index, hepatosomatic index, and fecundity. The research was conducted over two months from February to March 2025. Fish sampling was conducted using purposive sampling based on the habitat of the kiper fish. A total of 87 fish were observed during the study, comprising 28 males and 59 females, with a sex ratio of 1:2. The gonadal maturity stage (GMS) obtained for both males and females was GMS I-V. The Gonadal Maturity Index (GMI) values for male fish ranged from 0.16"“5.81%, which was lower compared to the GMI values for female fish, which ranged from 0.16"“14.5%. The total fecundity of kiper fish was calculated to range from 9,030"“73,203 eggs. Relative fecundity per total length of the fish ranged from 117 to 1,018 eggs, while relative fecundity per total weight of the fish ranged from 8,089 to 17,448 eggs. Keywords: Reproductive biology, Scatophagus argus, Duri River Estuary

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