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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Maspari Journal OLDI (Oseanologi dan Limnologi di Indonesia) Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Marine Research in Indonesia Jurnal Teknologi Lingkungan Liberosis: Jurnal Psikologi dan Bimbingan Konseling
Nurul Fitriya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science Library & Information Science Veterinary Other

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Effects of Nutrients Concentration on Phytoplankton Abundance in The Halmahera-Molucca Sea Meirinawati, Hanny; Fitriya, Nurul
Oseanologi dan Limnologi di Indonesia Vol 3, No 3 (2018)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.953 KB) | DOI: 10.14203/oldi.2018.v3i3.129

Abstract

The availability of nutrients in the ocean is essential for the growth and accumulation of phytoplankton biomass. The input nutrients can then changes its ratio which may affect the species composition of phytoplankton communities and higher trophic level biotas. The effects of nutrients on phytoplankton abundance are very important to be studied due to its role as limiting factors for phytoplankton growth. Besides that, these two variables are most important factors in measuring aquatic productivity. This study aims to analyzed composition and abundance of phytoplankton and its relationship with dissolved inorganic nutrients in the Halmahera-Molucca Sea. This research was conducted in November 2015 covering 8 sampling station within the Halmahera-Molucca Sea. Water quality parameters, such as pH was measured using potentiometic method, dissolved oxygen (DO was measured using titrimetric method), and nitrate, nitrite, ammonium, phosphate and silicate, were measured using the colorimetric method. The water samples were taken using Rosette sampler and then filtered using hand net plankton with size 20 μm to obtain the phytoplankton. Plankton composition and abundance were then determined by microscopic analysis. The result showed that ammonium positively correlated with phytoplankton abundance (r=0.9133 at p<0.01). The correlation between nutrients and phytoplankton show that each genus has a preference for different nutrients. The presence of ammonium significantly increase the phytoplankton abundance from genus Chaetoceros, Nitzchia, Climacodium, Ceratium, Eucampia, Lauderia, Protoperidinium, and Rhizosolenia. On the other hand, phosphates increase the phytoplankton abundance from genus Coscinodiscus although not significantly. Besides, silicates increase the phytoplankton abundance from genus Thalassiothrix, Bacteriastrum, Skletonema, and Hemiaulus while nitrates increase the phytoplankton abundance from genus Alexandrium
PUBLIC AWARENESS ON HARMFUL ALGAL BLOOM (HAB) IN LAMPUNG BAY Aditya, Vishnu; Koswara, Asep; Fitriya, Nurul; Rachman, Arief; Sidabutar, Tumpak; Thoha, Hikmah
Marine Research in Indonesia Vol 38 No 2 (2013)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (926.212 KB) | DOI: 10.14203/mri.v38i2.58

Abstract

Harmful algal blooms (HABs) cause various problems, such as water quality degradation, fauna mass mortality and impairment of human health. Water quality monitoring in Lampung Bay has been conducted by Lampung Marine Aquaculture Office (BBL) of the Ministry of Marine Affairs and Fisheries since 1994. Occurrence of Pyrodinium bahamense var. compressum (Pbc), a causative organism of paralytic shellfish poisoning (PSP), has been recorded but threats caused by HABs have never been reported. A study aimed to know the level of public knowledge and awareness about HABs in Lampung Bay has been conducted. The components of group respondents consisted oflocal governments, academics and coastal communities. Awareness from each component was examined includinggeneral HAB knowledge, HAB impact to the community, HAB occurence and local knowledge of HAB. Data of HAB knowledge were collected through questionnaire and focus group  discussion. The result showed that 40.5% of respondents had knowledge of HABs phenomena and 51.3% respondents only know signs or indicators of HAB occurrence, while only 1.4% respondents had knowledge of local HAB occurences. The direct impact of HABs to the community was not commonly known by the respondents. Only a few cases of poisoning after eating seafood were reported. It can be concluded that there was lack of public knowledge and awareness on HABs in LampungBay. Intensive public awareness programs about HABs should be conducted in order to reduce risk towards HABs in Lampung Bay.
Pola Sebaran Fitoplankton serta Klorofil-a pada Bulan November di Perairan Tambelan, Laut Natuna Fitriya, Nurul; Surbakti, Heron; Aryawati, Riris
Maspari Journal : Marine Science Research Vol 3, No 2 (2011): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.596 KB) | DOI: 10.36706/maspari.v3i2.1307

Abstract

Phytoplankton is one of the parameters that determine the primary productivity in the sea. Distribution and abundance of phytoplankton is influenced by physical and chemical aspects of sea water. The purpose of this study is to analyze the abundance of plankton and chlorophyll-a. The research was conducted in November 2010 in the Tambelan Waters, Natuna. 24 species of phytoplankton were found. It was dominated by the group of Bacillariophyceae such as Bacteriastrum, Ditylum, Thalassiothrix, Hemiaulus, Nitzshia, Chaetoceros and Skeletonema. While the group of dinoflagellate species found are common and many of Ceratium. The content of chlorophyll-a showed that the range of chlorophyll-a in the Tambelan waters ranged between 1.71 - 4:08 mg/m3 (in the surface layer) and 0.92 - 5:39 mg/m3 (in the layer near the bottom). This condition indicates that the research are greatly influenced by the activity of the mainland. These results are also evident from the high concentrations of chlorophyll-a in the waters near the mainland compared to offshore areas, this confirms that the distribution of chlorophyll-a concentrations in waters strongly influenced by high nutrient inputs from activities in the surrounding land.   Key Words: Chlorophyll-a, phytoplankton, Tambelan   ABSTRAK Fitoplankton merupakan salah satu parameter yang sangat menentukan produktivitas primer di laut. Sebaran dan tinggi rendahnya konsentrasi fitoplankton sangat terkait dengan kondisi oseanografi suatu perairan. Tujuan penelitian ini adalah menganalisis tingkat kesuburan perairan berdasarkan kelimpahan plankton dan klorofil a-fitoplankton sebagai produsen primer di wilayah kepulauan Tambelan. Penelitian ini dilaksanakan pada bulan November 2010 di sekitar perairan Kepulauan Tambelan, Natuna.  Hasil penelitian menunjukkan bahwa di perairan Tambelan, ditemukan 24 jenis fitoplankton. Lima jenis diatom umum dijumpai di perairan ini, yaitu Bacteriastrum, Ditylum, Thalassiothrix, Hemiaulus, Nitzshia, Chaetoceros dan Skeletonema. Sedangkan dari kelompok dinoflagellata jenis yang umum dan banyak ditemukan adalah Ceratium. Kandungan klorofil-a menunjukkan bahwa kisaran klorofil-a di lapisan permukaan di sekitar perairan Tambelan berkisar antara 1.71 – 4.08 mg/m3.  Konsentrasi klorofil-a pada lapisan dekat dasar di Perairan Tambelan berkisar antara 0.92 – 5.39 mg/m3.  Kondisi ini menandakan bahwa lokasi penelitian di sekitar kedua pulau tersebut sangat dipengaruhi oleh aktivitas dari daratan.  Hasil ini juga terlihat dari tingginya konsentrasi klorofil-a di perairan dekat daratan jika dibandingkan dengan daerah lepas pantai, ini menegaskan bahwa sebaran konsentrasi klorofil-a yang berada di perairan sangat dipengaruhi oleh masukan nutrien yang tinggi dari aktivitas di daratan sekitarnya.   Kata Kunci: Klorofil-a, fitoplankton, Tambelan
ZOOPLANKTON COMMUNITY IN LAMALERA SEA AND SAWU SEA, EAST NUSA TENGGARA Nurul Fitriya; Muhammad Lukman
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 5 No. 1 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.161 KB) | DOI: 10.29244/jitkt.v5i1.7770

Abstract

Zooplankton community was studied in Lamalera Sea and Sawu Sea during DIKTI-P2O LIPI Expedition from 19 – 30 July 2011. Besides being a potential fishing ground, the Lamalera sea and Sawu Sea have been a migration path for Cetacean (large marine mammals), particularly during the southeast monsoon season. The purposes of this study were to investigate community structure, abundance, and spatial distribution of zooplankton in the Lamalera Sea and the Sawu Sea.  Plankton samples were collected from 23 stations, by NORPAC 300 µm-net that was vertically hauled from maximum 200 meter depth up to the surface water. The result showed that there were 45 taxa of zooplankton, which was dominated by copepods . The abundance of the zooplankton between 491 - 4537 individu/m3. Average diversity index and evenness values were 1.59 ± 0.21 and 0.50 ± 0.04, respectively. In this area, Creel has been found in all research stations but the abundance was small. Species composition was relatively the same between sampling stations suggesting that there was no different in composition between north and south parts, which virtually comprise of different water masses. It showed that spatial distribution of zooplankton was relatively  wide-reaching. Keywords: zooplankton, copepoda, creel, Lamalera sea, and Sawu Sea.
POTENTIAL ROLES OF BIOTIC FACTORS IN REGULATING ZOOPLANKTON COMMUNITY DYNAMICS IN JAKARTA BAY SHALLOW WATER COASTAL ECOSYSTEM Arief Rachman; Nurul Fitriya
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 4 No. 1 (2012): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (608.022 KB) | DOI: 10.29244/jitkt.v4i1.7802

Abstract

The dynamics in zooplankton abundance were regulated by changes in water physical-chemical parameters and interaction with biotic factors. In this research we examined the relationship between zooplankton community dynamic and important biotic factors, such as predation and food availability, in Jakarta bay. Plankton samplings were done in 10 sampling stations in Jakarta bay, from July to November 2009. Zooplankton samples were collected using horizontal towing method with NORPAC plankton net (mesh size 300 μm). Salinity, water depth, water temperature, and water transparency were measured. Phytoplankton samples were also collected with the same method as zooplankton, using Kitahara plankton net (mesh size 80 μm). Zooplankton taxas were grouped into two groups, the prey and predatory zooplankton. The results showed that there were two different patterns in zooplankton groups dynamic i.e., the single and double peak. The abundance peak in most zooplankton groups, such as copepods, cirripeds, luciferids, and tunicates, were induced by the high food availability during the phytoplankton bloom in August. The high abundance of prey zooplankton groups in August was responded by the predatory zooplankton groups, resulting in high abundance of predatory zooplankton in adjacent month. The high abundance of ctenophores and chordates (fish larvae) were suggested as the main factor for the low abundance of other zooplankton in September. Physical and chemical factors were not the regulating factors due to the stability of those factors during this research period. Thus we concluded that food availability and predator-prey interaction were the main factors which regulate zooplankton community dynamics in Jakarta bay.Keywords: predator-prey interaction, zooplankton, abundance peak, food availability, phytoplankton bloom
The Diversity of Plankton in Sangihe – Sangir Talaud Islands, Sulawesi, Indonesia Hikmah Thoha; Nurul Fitriya
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 27, No 3 (2010)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2010.27.3.200

Abstract

The research of Oceanographical Expedition was conducted on May 2009. Research Vessel of Baruna Jaya VIII was used to accommodate the research team, which is a part of the EWIN ( Widya Nusantara Expedition) project with a topic of discovering the ultimate frontier of Indonesia and strengthening our national resilience, such as survival, energy, and natural resources, food, disaster, and health. This paper shows  plankton research with environment studies, such as temperature and salinity.  Plankton was sampled using Kitahara Net with mesh size of 80 µm for phytoplankton and Norpac Plankton Net with mesh size of 300 µm for zooplankton. The sample was poured into a bottle with formalin of 4% as preservative from 13 stations. The results showed that the phytoplanktons consist of 22 diatom genera and 10 dinoflagellates. The phytoplankton abundance was due the flourishing of Chaetoceros sp., Rhizosolenia sp., Nitzschia sp., and Thalassiothrix sp.   Ceratium sp. and Protoperidinium sp., Pyrocystis sp., and Cyanobacteria Trichodesmium sp. were common among the dinoflagellates. The zooplanktons consist of 30 taxa, the group of which are mostly composed of Copepoda, Calanoida, Cyclopoida, Oikopleura, and Chaetognata. Environmental  studies were also discussed.    
Vertical and Horizontal Variability of Chlorophyll-a and Its Relationship with Environmental Parameters in the Waters of Sangihe and Talaud Islands, North Sulawesi, Indonesia Firdaus, Mochamad Ramdhan; Rachman, Arief; Fitriya, Nurul; Wijayanti, Lady Ayu Sri; Rozirwan, Rozirwan; Purwandana, Adi; Prayitno, Hanif Budi; Alfiansyah, Yustian Rovi; Sianturi, Oksto Ridho; Sugeha, Hagi Yulia
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 1 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.1.119-132

Abstract

The chlorophyll-a is an important biological parameter that could act as a proxy to indicate the abundance of phytoplankton and the primary productivity of an aquatic ecosystem. This paper investigates the vertical and horizontal variability of chlorophyll-a in the waters of Sangihe and Talaud Islands, Indonesia, and its correlation with water environmental parameters. In this study, the distribution of chlorophyll-a, temperature, salinity, and nutrients (NO3 and PO4) from the surface to a depth of 200 m (photic zone) was measured at 29 research stations. The results showed that the distribution of chlorophyll-a in the waters of the Sangihe-Talaud Islands was varied vertically and horizontally. The waters around the Sangihe Islands generally exhibited a higher chlorophyll-a distribution and shallower Deep Chlorophyll Maxima compared to the water around the Talaud Islands. The concentration of chlorophyll-a varied between 0.0017 and 1.2155 mg.m-3, with most of the water column in Sangihe-Talaud considered oligotrophic, although some stations or depths were mesotrophic or slightly eutrophic. The maximum chlorophyll-a concentration was found in the sub-surface layer at depths between 46 and 101 m. The low N:P ratio (<16) and N:Si ratio (<1) indicate that the water columns of Sangihe-Talaud, up to a depth of 200m, were N-limited. Based on the GAM analysis, chlorophyll-a concentration in Sangihe-Talaud waters was primarily regulated by temperature, salinity, and the N:P ratio, with weak influence from phosphate and the N:Si ratio. The analysis also suggests that primary productivity in Sangihe-Talaud is sensitive to temperature changes, indicating its vulnerability to future warming events.
STRATEGI PENINGKATAN MOTIVASI KERJA DENGAN PENERAPAN GOALS SETING PADA KARYAWAN DEPARTEMEN SUMBER DAYA MANUSIA DI PT. CIPTA NIRMALA Fitriya, Nurul
Liberosis: Jurnal Psikologi dan Bimbingan Konseling Vol. 7 No. 5 (2024): Liberosis: Jurnal Psikologi dan Bimbingan Konseling
Publisher : Cahaya Ilmu Bangsa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3287/liberosis.v7i5.7397

Abstract

Sumber daya manusia (SDM) sebagai aset utama dalam perusahaan dan perlunya manajemen yang efektif untuk meningkatkan motivasi kerja karyawan. Motivasi dianggap sebagai faktor kunci yang mendorong produktivitas dan tanggung jawab karyawan dalam menyelesaikan tugas. Penelitian ini menyoroti penerapan strategi goal setting sebagai metode untuk meningkatkan motivasi kerja di PT Cipta Nirmala, yang merupakan bagian dari Semen Indonesia Group.Melalui wawancara dengan kepala divisi SDM, terungkap bahwa banyak karyawan mengalami kebosanan dan kebingungan dalam pekerjaan mereka, yang berdampak negatif pada motivasi dan kinerja. Oleh karena itu, penelitian ini bertujuan untuk mengeksplorasi bagaimana penerapan teknik goal setting dapat membantu menetapkan tujuan yang jelas dan terukur, sehingga meningkatkan efikasi diri dan kinerja karyawan. Program magang ini diharapkan tidak hanya memberikan manfaat bagi individu, tetapi juga bagi perusahaan secara keseluruhan dalam mencapai visi dan misi mereka.Tujuan penelitian mencakup pengembangan wawasan mahasiswa mengenai penerapan teori dalam praktik dunia kerja, serta peningkatan motivasi kerja karyawan melalui penerapan goal setting. Penelitian ini diharapkan dapat memberikan kontribusi signifikan terhadap peningkatan kinerja SDM di PT Cipta Nirmala.Kata Kunci: Karyawan; Motivasi kerja; Goal Setting
Evaluation of the Biophysical and Chemical Conditions of the Aquatic Environment During the Rainy Season to Mitigate the Ecological Disaster of Ciguatera Fish Poisoning (CFP) and Harmful Algal Bloom (HABs) in the Gili Matra Marine Tourism Park-Lombok: Evaluasi Kondisi Biofisikakimia Lingkungan Perairan Pada Musim Hujan Untuk Mitigasi Bencana Ekologi Ciguatera Fish Poisoning (CFP) dan Marak Alga Berbahaya (MAB) di Taman Wisata Perairan Gili Matra-Lombok Sachoemar, Suhendar Indrakusmaya; Rachman, Arief; Aliah, Ratu Siti; Megawati, Novi; Romadhona, Ekky Ilham; Meirinawati, Hanny; Prayogo, Teguh; Dewa, Riardi Pratista; Zamroni, Yuliadi; Ahyadi, Hilman; Fitriya, Nurul; Hamzah, Faisal; Garno, Yudhi Soetrisno; Susanto, Joko Prayitno; Riyadi, Agung; Haryanti; Ihsan, Iif Miftahul; Setiarti Sukotjo; Iskandar; Leonita, Shinta; Diswandi; Rahman; Muhami; Makosim, Syahril
Jurnal Teknologi Lingkungan Vol. 26 No. 2 (2025)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2025.7213

Abstract

Abstrak Ciguatera Fish Poisoning (CFP) dan fenomena Marak Alga Berbahaya (MAB) yang disebabkan oleh dinoflagellata bentik beracun merupakan salah satu bencana ekologi atau lingkungan yang dapat mengancam kesehatan manusia di kawasan pesisir Indonesia, seperti di kawasan Taman Wisata Perairan (TWP) Gili Matra yang terdiri dari 3 pulau yaitu Gili Meno, Air, dan Trawangan. TWP Gili Matra merupakan pusat wisata bahari dan kawasan konservasi laut di kawasan Nusa Tenggara Barat yang diketahui mengalami tekanan akibat aktivitas manusia dari kegiatan pariwisata dan perikanan yang berdampak negatif kepada ekosistem pesisir, terutama terumbu karang. Kondisi tersebut dapat meningkatkan kelimpahan komunitas dinoflagellata bentik beracun yang berpotensi menyebabkan terjadinya CFP dan MAB di TWP Gili Matra. Untuk itu diperlukan upaya mitigasinya agar risiko bencana ekologi CFP dan MAB dikemudian hari yang selain dapat menyebabkan terjadinya kerusakan ekosistem perairan TWP Gili Matra, tetapi juga kerugian ekonomi yang cukup besar, tidak terjadi. Menurut perhitungan ekonomi para ahli, nilai ekonomi kegiatan pariwisata di TWP Gili Matra, mencapai 26,86 triliun rupiah per tahun.  Salah satu upaya mitigasi bencana ekologi CFP dan MAB adalah dengan mengetahui kondisi lingkungan perairan di TWP Gili Matra pada musim hujan. Berdasarkan hasil survei diketahui kondisi biofisikakimia lingkungan perairan pada musim hujan bulan Desember 2022 dan Maret 2024 dalam keadaan yang sangat baik dengan tingkat eutrofikasi sebagai indikator kualitas lingkungan perairan pada tingkat ultraoligotrofik dengan nilai skor TSI (Trophic State Index) 12,9-19,4 (<30) yang mengindikasikan bahwa kesuburan perairan sangat rendah, air jernih, konsentrasi oksigen terlarut tinggi sepanjang tahun dan mencapai zona hipolimnion.   Abstract Ciguatera Fish Poisoning (CFP) and the phenomenon of Harmful Algal Bloom (HABs) caused by toxic benthic dinoflagellates are one of the ecological or environmental disasters that can threaten human health in coastal areas of Indonesia, such as in the Gili Matra Aquatic Tourism Park (ATP) area which consists of three islands, namely Gili Meno, Air, and Trawangan. ATP Gili Matra is a center for marine tourism and conservation areas in the West Nusa Tenggara region which is known to be under pressure due to human activities from tourism and fisheries activities that have a negative impact on coastal ecosystems, especially coral reefs. This condition can increase the abundance of toxic benthic dinoflagellate communities that have the potential to cause CFP and HABs in ATP Gili Matra. For this reason, mitigation efforts are needed so the risk of CFP and HABs ecological disasters in the future which can not only cause damage to the ATP Gili Matra aquatic ecosystem, but also significant economic losses, does not occur. According to economic calculations by experts, the economic value of tourism activities in ATP Gili Matra reaches IDR 26.86 trillion per year. One of the efforts to mitigate the ecological disaster of CFP and HABs is to understand the condition of the aquatic environment in ATP Gili Matra during the rainy season. Based on the survey results, it is known that the biophysical and chemical conditions of the aquatic environment during the rainy season in December 2022 and March 2024 are in very good condition with the level of eutrophication as an indicator of the quality of the aquatic environment at the ultraoligotrophic level with a TSI (Trophic State Index) score of 12.9-19.4 (<30) which indicates that water fertility is very low, the water is clear, the concentration of dissolved oxygen is high throughout the year and reaches the hypolimnion zone.
Co-Authors Adi Purwandana Aditya, Vishnu Agung Riyadi Alfiansyah, Yustian Rovi Arief Rachman Arief Rachman Diswandi Faisal Hamzah Firdaus, Mochamad Ramdhan Garno, Yudhi Soetrisno Hanif Budi Prayitno Haryanti Heron Surbakti Hikmah Thoha Hikmah Thoha Hilman Ahyadi Ihsan, Iif Miftahul ISKANDAR Joko Prayitno Susanto Koswara, Asep Makosim, Syahril Megawati, Novi Meirinawati, Hanny Meirinawati, Hanny Muhami Oksto Ridho Sianturi Rahman Ratu Siti Aliah Riardi Pratista Dewa, Riardi Pratista Rilus Kinseng Riris Aryawati Romadhona, Ekky Ilham Rozirwan . Sachoemar, Suhendar Indrakusmaya Setiarti Sukotjo Shinta Leonita Sugeha, Hagi Yulia Teguh Prayogo Tumpak Sidabutar Wijayanti, Lady Ayu Sri Yuliadi Zamroni