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The presence of harmful algae in the coastal waters of Bintan Island, Riau Islands Apriadi, Tri; Melani, Winny Retna; Zulfikar, Andi; Sabriyati, Deni; Muzammil, Wahyu; Pasisingi, Nuralim
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.34135

Environmental mitigation measures are being undertaken as a proactive approach to prevent the adverse consequences associated with Harmful Algal Blooms (HABs). Presently, there is a lack of comprehensive information regarding the occurrence of HABs in the waters surrounding Bintan Island, and routine monitoring to assess the potential for eutrophication is absent. This research should begin by gathering information about potential sources that contribute to the emergence of HABs, the specific types of algae with the capacity to trigger HABs The primary objective of this study is to identify the harmful algae species present in the coastal waters of Bintan Island. The research was conducted in August 2023, with the sampling process taking place at four specific locations within the coastal waters of Bintan Island. These sampling stations were selected deliberately to capture the varying activities predominant in each respective area. The microalgae found consisted of four groups, namely Bacillariophyta, Cyanophyta, Dinophyta, and Chlorophyta. Bacillariophyta is a group of microalgae with the highest abundance proportion at all observation stations. Harmfull Algae found in the coastal waters of Bintan Island generally come from the Dinophyta group of the types Ceratium sp., Peridinium sp., Prorocentrum sp., and Dinophysis sp. Harmful microalgae from the Dinophyta group were found at all research stations, with the highest proportion of abundance at Station 2 (6%) and the lowest at Station 3 (1%). The difference in these findings is thought to be due to the dynamics of the hydrosanographic parameters of the waters, especially nutrient concentrations.Keywords:BintanCeratiumDinophytaHarmfulMicroalgae

Perbandingan Produksi Tangkapan dan Pendapatan Nelayan Nike di Teluk Gorontalo Menggunakan Alat Tangkap Tagahu dan Totalu’o Rahim, Fadhilah Apriliyani; Yusuf, Mohamad Iqbal; Nusi, Ibrahim A.; Pasisingi, Nuralim; Habibie, Sitty Ainsyah
The NIKe Journal VOLUME 13 ISSUE 1 | MARCH 2025
Publisher : Fakultas Kelautan dan Teknologi Perikanan - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v13i1.31321

This study aimed to compare the production of nike in Gorontalo Bay using Tagahu and Totalu'o fishing gear. This research was conducted during 2 months of the fishing season, June and July. Data collection included observation and interviews using structured questionnaires with nike fishermen in Gorontalo Bay, Tomini Bay. The study results revealed that the total catches per fishing season by fishermen using Tagahu in June was 1,683 kg and in July it reached 1,360 kg, while the catch using Totalu'o was much less, only 433 kg in June and 380 kg in July. The fishermen total income in June who operated Tagahu was IDR 636,562 to IDR 1,117,812 per trip, while for fishermen operated Totalu'o fishing gear it ranged from IDR 1,305,375 to IDR 1,764,750 per trip. Meanwhile, the total income per trip by the fishermen in July who functioned Tagahu was IDR 537,857 to IDR 1,178,125. While for fishermen of Totalu'o fishing gear it was IDR 1,692,750 to IDR 2,343,375.

The presence of harmful algae in the coastal waters of Bintan Island, Riau Islands Apriadi, Tri; Melani, Winny Retna; Zulfikar, Andi; Sabriyati, Deni; Muzammil, Wahyu; Pasisingi, Nuralim
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.34135

Environmental mitigation measures are being undertaken as a proactive approach to prevent the adverse consequences associated with Harmful Algal Blooms (HABs). Presently, there is a lack of comprehensive information regarding the occurrence of HABs in the waters surrounding Bintan Island, and routine monitoring to assess the potential for eutrophication is absent. This research should begin by gathering information about potential sources that contribute to the emergence of HABs, the specific types of algae with the capacity to trigger HABs The primary objective of this study is to identify the harmful algae species present in the coastal waters of Bintan Island. The research was conducted in August 2023, with the sampling process taking place at four specific locations within the coastal waters of Bintan Island. These sampling stations were selected deliberately to capture the varying activities predominant in each respective area. The microalgae found consisted of four groups, namely Bacillariophyta, Cyanophyta, Dinophyta, and Chlorophyta. Bacillariophyta is a group of microalgae with the highest abundance proportion at all observation stations. Harmfull Algae found in the coastal waters of Bintan Island generally come from the Dinophyta group of the types Ceratium sp., Peridinium sp., Prorocentrum sp., and Dinophysis sp. Harmful microalgae from the Dinophyta group were found at all research stations, with the highest proportion of abundance at Station 2 (6%) and the lowest at Station 3 (1%). The difference in these findings is thought to be due to the dynamics of the hydrosanographic parameters of the waters, especially nutrient concentrations.Keywords:BintanCeratiumDinophytaHarmfulMicroalgae

Perbandingan Komposisi Ikan Gobi di Sungai Bone Gorontalo pada Fase Bulan Gelap dan Bulan Terang Husain, Febrianti A; Pasisingi, Nuralim; Habibie, Sitty Ainsyah; Kasim, Faizal
The NIKe Journal VOLUME 13 ISSUE 2 | JUNE 2025
Publisher : Fakultas Kelautan dan Teknologi Perikanan - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v13i2.32449

Fase bulan merupakan faktor lingkungan alami yang memengaruhi distribusi ikan di perairan secara spasial dan temporal. Penelitian ini bertujuan untuk membandingkan komposisi dan kelimpahan ikan gobi di Sungai Bone Provinsi Gorontalo pada fase bulan gelap dan terang. Pengambilan sampel dilakukan di tiga stasiun sepanjang Sungai Bone Provinsi Gorontalo pada pukul 08.00 hingga 15.00 WITA. Waktu pengambilan sampel dilakukan pada fase bulan gelap dan terang masing-masing pada 1 Dzulhijjah 1446 Hijriyah (bulan gelap) dan pada 13 Dzulhijjah 1446 Hijriyah (bulan terang). Hasil identifikasi menunjukkan terdapat 9 spesies ikan gobi pada bulan terang dan 8 spesies pada bulan gelap, dengan Sicyopterus longifilis sebagai spesies dominan. Hal ini mengindikasikan bahwa komposisi dan kelimpahan ikan gobi di Sungai Bone Gorontalo dapat saja dipengaruhi oleh fase blulan. Namun berdasarkan uji korelasi non parametrik Spearman, tidak terdapat hubungan antara fase bulan dengan jumlah individu maupun kelimpahan relatif ikan gobi di Sungai Bone

STATUS MUTU PERAIRAN TELUK GORONTALO DENGAN MENGGUNAKAN METODE POLLUTION INDEX Kadim, Miftahul Khair; Pasisingi, Nuralim
JFMR (Journal of Fisheries and Marine Research) Vol. 2 No. 1 (2018): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2018.002.01.1

Water quality is very vital to support the survival of organisms. Determination of water quality status needs to be carried out as a reference for monitoring water pollution of an aquatic system. This study aims to assess the status of water quality in the Gorontalo Bay. There are 5 observation stations selected based on the coastal conditions and ecological characteristics. Sampling of water quality parameters was conducted along the Gorontalo Bay in May to July 2017. Sampling procedure based on APHA standard method. The water quality data are analyzed using Pollution Indeks method. Gorontalo Bay has Pollution Index average score of 4.74. This value shows that the quality status of the Gorontalo Bay is considered as polluted category.

PERUBAHAN SOSIAL DAN BUDAYA MASYARAKAT NELAYAN TUNA DI DESA OLELE DAN TANJUNG KRAMAT, GORONTALO Syamsuddin, Syamsuddin; Pasisingi, Nuralim; Nento, Wila Rumina; Saleh, Yuliana Yunus; Butolo, Ivana
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 21, No 3 (2025): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.21.3.209-215

Nelayan merupakan salah satu pekerjaan yang mendominasi masyarakat di Desa Olele dan Kelurahan Tanjung Kramat, dimana profesi nelayan yang menjadi mata pencaharian masyarakat yakni nelayan penangkap tuna. Tuna menjadi komoditas unggulan terutama di perairan Teluk Tomini Gorontalo sehingga mampu meningkatkan perekonomian setempat. Namun, dalam beberapa tahun terakhir hasil tangkapan tuna semakin menurun mengakibatkan nelayan penangkap tuna mengalami penurunan pendapatan yang memaksa mereka untuk beralih profesi. Penelitian ini bertujuan untuk mengkaji perubahan sosial dan budaya yang terjadi pada masyarakat nelayan tuna di Desa Olele dan Kelurahan Tanjung Kramat, Gorontalo, sebagai respon terhadap dinamika ekologi dan kebijakan perikanan. Penelitian ini menggunakan pendekatan kualitatif-deskriptif, data diperoleh melalui wawancara mendalam, observasi partisipatif, dan studi dokumentasi. Hasil penelitian menunjukkan bahwa penurunan signifikan hasil tangkapan tuna sejak tahun 2019, kemunculan predator seperti paus orca, serta kebijakan pemerintah yang kurang tepat sasaran seperti bantuan perahu yang tidak sesuai kebutuhan teknis telah memengaruhi pola hidup, interaksi sosial, dan strategi ekonomi masyarakat nelayan. Selain itu, penggunaan alat tangkap ilegal seperti rumpon yang tidak terkontrol turut memperparah kondisi perairan dan mempercepat krisis sumber daya. Di sisi lain, peran organisasi seperti Yayasan MDPI berkontribusi dalam meningkatkan kesadaran masyarakat akan pentingnya keberlanjutan sumber daya laut. Penelitian ini merekomendasikan perlunya kebijakan berbasis komunitas dan pengelolaan perikanan yang adaptif terhadap kondisi sosial dan ekologis lokal.

Keberadaan Ephemeroptera, Plecoptera, Trichoptera (EPT) Sebagai Bioindikator Pencemaran di Sungai Bone Gorontalo Kadim, Miftahul Khair; Pasisingi, Nuralim; Polamolo, Ade Irma; Maharani, Siti Adel
Jurnal Sumberdaya Akuatik Indopasifik Vol 9 No 2 (2025): Mei
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2025.Vol.9.No.2.445

Rivers play a crucial role as aquatic ecosystems within the hydrological cycle, serving as vital areas for environmental water absorption. Their conditions are intricately shaped by both human activities and the inherent characteristics of their surrounding environments. Among these rivers, the Bone River stands as a pivotal hub of community life in Gorontalo, yet it faces significant vulnerability to pollution. This research endeavors to assess the water quality of the Bone River utilizing Ephemeroptera, Plecoptera, and Trichoptera (EPT) as bioindicators. Conducted between March and April 2021, the study spanned eight carefully selected observation stations, covering the river's course from upstream to downstream. The evaluation of water quality is undertaken through a quantitative analysis of biotile diversity parameters, encompassing calculations of EPT diversity, percentage abundance, and the overall diversity of macrozoobenthos families. From the research findings, it was revealed that the Bone River hosts 16 EPT families, comprising a total of 1438 individual observations. Across the eight stations, the diversity of the EPT family encompassed 16 taxa, inclusive of 7 Ephemeroptera and 9 Trichoptera taxa, with Plecoptera notably absent. Notably, the results of the Biotilik examination yielded a score of 2.28 for the water quality of the Bone River. This score indicates a pollution burden on the river, as evidenced by elevated Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) concentrations at select observation sites, surpassing established quality standards. Furthermore, the absence of macrozoobenthos, particularly Plecoptera, which are known for their sensitivity to pollution, further underscores the compromised state of the river's water quality.

Analysis of shoreline changes in the city of Gorontalo using remote sensing technology Mahua, Musdalifah H.; Kasim, Faizal; Pasisingi, Nuralim
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 1 (April, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i1.12169

Coastal areas are essential for economic activities but are also vulnerable to environmental changes caused by human activities. Remote sensing technology can help monitor shoreline changes efficiently and accurately related to the spatial-temporal dynamics of the local area's coastline, which is needed to develop an effective coastal management strategy. By using the Modified Normalized Difference Water Index (MNDWI) water index method for shoreline extraction, the results show that the addition of coastal areas (accretion) as part of the dominant process for coastal equilibrium in almost all coastal regions in Gorontalo City during the 2000-2022 period, experienced trend acceleration significantly during the 2015-2022 period with an increase in the accretion rate of 60.15%. The accretion rate in this period has resulted in an increase in the land area of the coastal zone by 425.44% compared to the accretion that occurred during the 2000-2015 period. The findings of this study can be used as a basis for further research regarding the impact of human activities on coastal ecosystems and the effectiveness of coastal management strategies for Gorontalo City.Keywords: Google earth engine; coastal equilibrium; landsat; sentinel-2; MNDWI

Macrozoobenthic community as a bioindicator for the water quality of the Bone River, Gorontalo Kadim, Miftahul Khair; Pasisingi, Nuralim; Mursalim, Paramita; Arbi, Indah Rianti
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 3 (December, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i3.16439

The Bone River faces potential pollution due to human activities in the surrounding area. To ensure this, macrozoobenthic is used as a bioindicator, utilizing the characteristics of its constituent communities, which show sedentary behaviour, limited mobility, and sensitivity to water conditions. This research aims to examine the composition of the macrozoobenthic community which reflects the water quality of the Bone River. The research was conducted from May to August 2023 at three observation stations. Water quality evaluation used the Hilsenhoff Family Biotic Index (FBI) methodology. The findings revealed a collection of 1,040 individuals representing 43 macrozoobenthic genera, with Trichoptera, Ephemeroptera, and Diptera widely distributed along the river. A dominance index of 0.2 indicates that there is not a single macrozoobenthic species that dominates, while an FBI value ranging from 3.71 to 5.47 indicates that there is pollution in the Bone River.Keywords: Bioindicator; Family Biotic Index; Macrozoobenthic; River; Water quality

ANALYSIS OF COASTLINE CHANGES IN GORONTALO CITY USING REMOTE SENSING TECHNOLOGY Mahua, Musdalifah; Kasim, Faizal; Pasisingi, Nuralim
Jurnal Ilmu Kelautan SPERMONDE VOLUME 9 NUMBER 2, 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v9i2.28423

Coastal areas are important for economic activities, but are also vulnerable to environmental changes caused by human activities. The use of remote sensing technology can assist in efficient and accurate monitoring of coastline changes related to the spatial-temporal dynamics of coastlines in local areas, which is needed in the development of effective coastal management strategies. By applying the Modified Normalized Difference Water Index (MNDWI) method for coastline extraction, the research results show that the addition of coastal areas (accretion) as a dominant process in coastal stability in almost all coastal areas of Gorontalo City during the period 2000-2022, has experienced the significantly accelerated trend during the 2015-2022 period with an increase in the accretion rate of 60.15%. The rate of accretion in this period has caused an increase in the land area of coastal areas by 425.44% compared to the accretion that occurred during the 2000-2015 period. The findings of this research can be used as a basis for further research regarding the impact of human activities on coastal ecosystems and the effectiveness of Gorontalo City's coastal management strategies.

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