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All Journal BULETIN OSEANOGRAFI MARINA Jurnal Kesehatan Lingkungan indonesia NIKe Jurnal Ilmiah Perikanan dan Kelautan | Fisheries and Marine Scientific Journal Aceh Journal of Animal Science Science and Technology Indonesia JFMR (Journal of Fisheries and Marine Research) Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Abdi Insani Tomini Journal of Aquatic Science Indonesian Journal of Oceanography Jurnal Inovasi Global Journal of Fisheries & Marine Biodiversitas Journal of Biological Diversity
Sitty Ainsyah Habibie
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences

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Diversity of species in making up Nike fish schools and a new record of Eleotris melanosoma in Tomini Paguyaman Bay, Gorontalo, Indonesia Femy M Sahami; Sitty Ainsyah Habibie
Biodiversitas Journal of Biological Diversity Vol. 22 No. 12 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d221229

Abstract

Abstract. Sahami FM, Habibie SA. 2021. Diversity of species in making up Nike fish schools and a new record of Eleotris melanosoma in Tomini Paguyaman Bay, Gorontalo, Indonesia. Biodiversitas 22: 5459-5467. Several estuaries in the waters of Tomini Bay are reported as the primary location for Nike fishing in Gorontalo; one of which is Paguyaman Bay. However, scientific information on Nike fish in the Tomini Bay waters is currently limited in Gorontalo Bay. The present study aims to determine the diversity of species in making up the Nike fish schools in Paguyaman Bay and show the types of constituent species whose distribution in Gorontalo waters has never been reported. A total of 1773 samples of Nike fish were collected from the sea to the estuary of Paguyaman Bay in one period of their emergence on April 8-10, 2021. The species were grouped based on the melanophore pattern’s similarity and then analyzed morphometrically. The molecular identification of COI mitochondrial DNA was performed on species with different morphological appearances from those found in Gorontalo Bay. The Discriminant Function Analysis (DFA) indicated that the main distinguishing character of morphometrics is body depth. The morphological results suggested that the Nike fish schools in Paguyaman Bay consisted of seven species, four genera, and two families, i.e., Sicyopterus longifilis, S. parvei, S. cynocephalus, Stiphodon semoni, Belobranchus segura, B. belobranchus, and Eleotris melanosoma. The first finding of E. melanosoma as a species making up the Nike fish schools in Paguyaman Bay was a new variant of the distribution of this species in Gorontalo waters and confirmed using morphology and molecular analysis. Further, based on the species composition, Nike fish schools in the waters of Paguyaman Bay show a typical species dominance trend during the recruitment process returning to freshwater, i.e., S. longifilis (52%) on the first day, Belobranchus segura (63.27%) on the second day, and Stiphodon semoni (83.43%) on the third day.
Tren Suhu Permukaan Laut, Anomali Ekstrem, dan Keterkaitannya dengan ENSO di Teluk Tomini dan Perairan Sekitarnya Periode 2003–2025 Faizal Kasim; Sri Rahayu Kalaka; Sitty Ainsyah Habibie; Melisa Juliana Sau
Indonesian Journal of Oceanography Vol 8, No 1 (2026): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v8i1.30633

Abstract

Penelitian ini mengkaji tren jangka panjang suhu permukaan laut (SPL) dan respons spasial terhadap ENSO di Teluk Tomini, Laut Maluku/Seram, dan Laut Sulawesi menggunakan data NOAA Optimum Interpolation Sea Surface Temperature (NOAA CDR OISST v2.1) periode 2003–2023 dengan validasi data 2024–2025. Analisis regresi linier menunjukkan tren pemanasan signifikan di seluruh wilayah dengan laju 0,025–0,033 °C tahun⁻¹. Analisis korelasi mengungkap heterogenitas respons yang kontras; Laut Maluku/Seram menunjukkan korelasi negatif yang signifikan (r = -0,499) terhadap indeks ONI, mengkonfirmasi perannya sebagai jalur transmisi sinyal Pasifik. Sebaliknya, Teluk Tomini dan Laut Sulawesi menunjukkan korelasi yang lemah, mengindikasikan dominasi faktor oseanografi lokal. Validasi terhadap data aktual 2024–2025 menunjukkan deviasi suhu yang berada sedikit di bawah garis tren prediksi, menandakan adanya modulasi variabilitas antartahun terhadap pemanasan jangka panjang. Temuan ini menegaskan bahwa strategi adaptasi perikanan di kawasan ini memerlukan pendekatan spesifik lokasi yang mengintegrasikan indikator iklim global dan dinamika lokal.
The Effect of Liquid Organic Fertilizer Application on the Growth of Microalgae Chlorella sp. Lady Ayu Sri Wijayanti; Mochhamad Ikhsan Cahya Utama; Andini Nur Afifah; Annisa Rahmah Septiani; Muhammad Wijatmikko Ginang Pratidnia; Yuyun Yuningsih; Sara Umbekna; Sitty Ainsyah Habibie
Tomini Journal of Aquatic Science VOLUME 4 ISSUE 1, NOVEMBER 2025
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v4i1.33254

Abstract

Microalgae such as Chlorella sp. are valuable for their potential in sustainable food, feed, and bioenergy production, but their cultivation often relies on costly synthetic nutrients. Exploring alternative nutrient sources, such as liquid organic fertilizers, may offer a more economical and environmentally friendly approach to biomass production. This study aims to evaluate the effect of liquid organic fertilizer application on the growth of Chlorella sp. in a closed culture system. Seven treatments were used: one control without fertilizer (K) and six treatments with increasing fertilizer doses (P1–P6). The observed parameters included initial and final cell density, as well as daily growth rate during a seven-day incubation period. The results showed that fertilizer application had a significant effect on the growth enhancement of Chlorella sp. The highest final cell density was recorded in treatment P6, exceeding 6.3 × 10⁷ cells/ml, while a population decline was observed in the control group. The daily growth rate also increased with higher fertilizer doses, with the highest value (μ = 0.36) observed in P6. Linear regression analysis showed a strong relationship between fertilizer amount and growth rate (r = 0.8493; p = 0.0156; R² = 0.7213), indicating that growth variation could be significantly explained by the amount of fertilizer applied. The conclusion of this study is that liquid organic fertilizer has great potential as an efficient and environmentally friendly alternative for microalgae culture media. Proper dosage formulation can support optimal microalgal biomass production. Further research is needed to identify the dominant nutrient content in the fertilizer and to assess the biomass quality for potential applications in food, feed, or bioenergy sectors.
Preliminary Study of Surface Water Quality Based on DO and BOD Parameters in Pangandaran Reservoir Lady Ayu Sri Wijayanti; Nurani Khoerunnisa; Helmalia Asri; Veronica Veronica; Irna Salwa Al Iksani; Mella Anggraeni; Gilar Budi Pratama; Sitty Ainsyah Habibie
Tomini Journal of Aquatic Science VOLUME 4 ISSUE 1, NOVEMBER 2025
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v4i1.33138

Abstract

Pangandaran Reservoir, located in Pangandaran Regency, West Java, serves as a water conservation facility and supports aquaculture activities. Its water quality, particularly in terms of dissolved oxygen (DO) and biochemical oxygen demand (BOD₅), is a key indicator for maintaining the reservoir's ecological and socio-economic functions. This study aims to analyze DO and BOD₅ parameters in Pangandaran Reservoir and evaluate their compliance with applicable water quality standards. Sampling was conducted in May 2025 at four stations representing both the inflow area and the inner reservoir waters. DO levels were measured using the Winkler titration method, while BOD₅ was determined based on the difference in DO concentrations before and after a five-day incubation period. The results showed that water temperatures ranged from 32 to 32.5°C, slightly exceeding the water quality threshold, likely due to high solar radiation and limited vegetation cover. The pH ranged from 7 to 9, which is still within the safe range, with higher pH values observed in the inflow area, influenced by the dominance of limestone (karst) formations in the surrounding Pangandaran region. The highest DO concentration was recorded at Station 4 (4.32 mg. L-1), while the lowest was at Station 2 (3.40 mg. L-1). Conversely, the highest BOD₅ values were found at Station 2 (8.3 mg. L-1) and Station 1 (8 mg. L-1). The spatial distribution pattern indicates a negative relationship between DO and BOD₅, where high organic pollutant loads in the inflow area reduce dissolved oxygen levels. Overall, the water quality of Pangandaran Reservoir falls within Class 2 to Class 4 based on Government Regulation No. 82 of 2001, with signs of declining quality in the inflow area. Therefore, pollution source control and routine monitoring are essential to preserve the aquatic ecosystem of the reservoir.
Coastal Tourism Development Based on the Tourism Suitability Index and Carrying Capacity at Dulanga Beach, Bongo Village Jihan Jihan; Nuralim Pasisingi; Sri Fitriani Monoarfa; Sitty Ainsyah Habibie; Agustina Agustina; Sandrianto Djunaidi
Tomini Journal of Aquatic Science VOLUME 4 ISSUE 1, NOVEMBER 2025
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v4i1.41306

Abstract

Dulanga Beach in Bongo Village, Gorontalo Regency, holds considerable coastal tourism potential but has not been developed optimally. This study assessed the tourism suitability index and carrying capacity of Dulanga Beach as a basis for sustainable tourism development. A field survey was conducted at three stations, measuring ten beach tourism suitability parameters: water depth, beach type, beach width, bottom substrate, current velocity, beach slope, water clarity, coastal land cover, dangerous biota, and freshwater availability. Data were analysed using a weighted coastal tourism suitability index following Yulianda (2019). Dulanga Beach was classified as highly suitable (S1) for coastal tourism, with station suitability indices of 2.75–2.83 (all TSI ≥ 2.5). The utilizable beach length was 377.77 m, with a maximum carrying capacity of 30 persons per day. These results indicate that Dulanga Beach has strong potential for sustainable coastal tourism development, with physical characteristics that support beach recreation activities
Analysis of the Relationship between Income and Savings Ratio on the Welfare Level of Fishermen in the Gorontalo Bay Coast Aksal Hilimi; Nuralim Pasisingi; Sitty Ainsyah Habibie
Tomini Journal of Aquatic Science VOLUME 5 ISSUE 1, MAY 2026
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v5i1.36776

Abstract

The capture fisheries sector plays an important role in the economy of coastal communities, but the welfare of fishermen remains vulnerable due to income fluctuations and limited household financial management. This study aims to analyze the relationship between income and savings ratio with the welfare level of fishermen in the coastal area of Gorontalo Bay. The study uses a quantitative approach with a survey method of 111 fishermen selected using the Slovin formula with a 10 percent error rate. Data were collected through structured interviews using questionnaires, then analyzed descriptively and through Spearman's correlation test. The results show that most fishermen have an income ≥ Gorontalo City minimum wage, but the majority do not have savings. The general welfare level of fishermen is in the high category based on indicators from the Central Statistics Agency. The correlation test showed that income had a positive and significant relationship with welfare (correlation coefficient of 0.486; significance of 0.000), while the savings ratio showed a positive but insignificant relationship (correlation coefficient of 0.149; significance of 0.120), indicating that savings did not yet reflect the welfare of fishermen's households in real terms. These findings confirm that the welfare of fishermen is more closely related to income than to savings.
Co-Authors Abas, Nurnaningsih Abdul Hafidz Olii Adnan Wantasen Agustina Agustina Aksal Hilimi Anasiru, Rayhan Firman Andini Nur Afifah Annisa Rahmah Septiani Antadi, Mohamad Rijal Dion Potale Djumanto Djumanto Endah Nurrohwinta Djuwarno Faizal Kasim Faradila Putri Nasaru Femy M. Sahami Gilar Budi Pratama Hasyim, Dandi Helmalia Asri Husain, Febrianti A Irna Salwa Al Iksani Jihan Jihan Lady Ayu Sri Wijayanti Latif, Multiani S. Mbuinga, Adeliya Melisa Juliana Sau Mella Anggraeni Miftahul Khair Kadim Mochhamad Ikhsan Cahya Utama Mohamad Aprianto Paneo Monoarfa, Sri Fitriani Muhammad Wijatmikko Ginang Pratidnia Munafri, Nur Alifia Karina Murwantoko . Nur Ain Thomas Nuralim Pasisingi Nurani Khoerunnisa Nusi, Ibrahim A. Rahim, Fadhilah Apriliyani Rene Charles Kepel, Rene Charles Ridwan Lasabuda Rustadi Rustadi Sahami, Femi Mahmud Sandrianto Djunaidi Sandrianto Djunaidi Sara Umbekna Sentia, Sentia Shindy Hamidah Manteu Silvester Benny Pratasik Sri Fitriani Monoarfa Sri Nilawaty Lahay Sri Nuryatin Hamzah Sri Rahayu Kalaka Sumitro U Thalib Veronica Veronica Wila Rumina Nento Yusuf, Mohamad Iqbal Yuyun Yuningsih