Articles
<![CDATA[Pengaruh Konsentrasi Fosfat dan Nitrat terhadap Kelimpahan Fitoplankton di Perairan Mangrove Gunung Anyar, Surabaya ]]>
<![CDATA[Nirmalasari Idha Wijaya]]>;
<![CDATA[Aprilyas Kusuma Amalia Sari]]>;
<![CDATA[Mahmiah Mahmiah]]>
<![CDATA[ Jurnal Pertanian Terpadu Vol 10 No 1 (2022): Jurnal Pertanian Terpadu Jilid X Nomor 1 Juni 2022 ]]>
Publisher : <![CDATA[Sekolah Tinggi Pertanian Kutai Timur ]]>
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DOI: 10.36084/jpt..v10i1.400
<![CDATA[Sungai Gunung Anyar Surabaya digunakan untuk pembuangan limbah rumah tangga karena terdapat pemukiman padat penduduk di sepanjang alirannya. Selain itu, terdapat tambak-tambak yang membuang sisa pakan dan sisa metabolisme ke Sungai Gunung Anyar. Limbah yang mengandung unsur hara seperti nitrat dan fosfat akan dimanfaatkan oleh fitoplankton untuk pertumbuhannya. Masuknya bahan organik nitrat dan fosfat, ke muara dapat mempengaruhi kualitas air yang berpengaruh pada keberadaan fitoplankton. Tujuan penelitian ini adalah menganalisis hubungan konsentrasi nitrat dan fosfat terhadap kelimpahan fitoplankton di Perairan Mangrove Gunung Anyar, Surabaya. Penelitian ini dilakukan pada pertengahan bulan Oktober sampai Desember 2021. Pengambilan sampel dilakukan pada sembilan stasiun dengan metode pengambilan fitoplankton secara horizontal. Analisis fitoplankton menggunakan Sedgwick Rafter Counter Cell (SRCC). Sampel air digunakan untuk menganalisis nitrat dan fosfat yang selanjutnya dianalisis menggunakan Spektrofotometri Uv-Vis. Analisa data meliputi densitas absolut fitoplankton, indeks keanekaragaman fitoplankton, serta uji regresi untuk mengetahui hubungan nitrat dan fosfat dengan fitoplankton. Konsentrasi nitrat tergolong oligotrofik sedangkan konsentrasi fosfat tergolong mesotrofik. Kelimpahan fitoplankton termasuk dalam kategori oligotrofik. Indeks keanekaragaman (H’) termasuk dalam kategori sedang. Hubungan antara nitrat terhadap kelimpahan fitoplankton menunjukkan (r) memiliki korelasi lemah, sedangkan hubungan antara fosfat terhadap kelimpahan fitoplankton menunjukkan (r) memiliki korelasi cukup.]]>
<![CDATA[Pola Sedimentasi di Teluk Lamong, Surabaya, Jawa Timur ]]>
<![CDATA[Fitri Indah Kuntari]]>;
<![CDATA[Rudi Siap Bintoro]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 2 (2020): November ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v2i2.46
<![CDATA[This research to analyze sedimentation patterns in the waters of the Lamong Bay. This research was conducted in August 2018 until May 2019. The sampling of basic sediment were using sediment grab and the sampling of suspended sediment were using nansen bottle. The data used was tide data, river discharge, velocity and direction data of sediment data. The data which was obtained from survey would be processed in the Hidro – Oceanographic Laboratory of Hang Tuah University. The data includes data on grab sediment samples and until suspended sediment. For modeling sedimentation patterns was using software SMS using river discharge data and the results of processing suspended sediment. The result data from processing models in when the high tide the sediment concentration tends to be high and at low tide the concentration tends to be low. When the high tide ocean current would lead to the bay to the river and at low tide the ocean currents will flow into the river.]]>
<![CDATA[ANALISIS KESUBURAN PERAIRAN BERDASARKAN KELIMPAHAN FITOPLANKTON DI MUARA SUNGAI PORONG, SIDOARJO ]]>
<![CDATA[Devi Setyowardani]]>;
<![CDATA[Nor Sa’adah]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v3i1.54
<![CDATA[The disposal of Lapindo mud which carries nutrients and other dissolved organic matter can cause mass enrichment and death of organisms due to the reduced amount of light entering the waters. The existence of phytoplankton can provide information about the state of the waters. This study aims to determine the fertility of the waters of the Porong River through the abundance of phytoplankton. This research was conducted from October to January 2021. Sampling was carried out at three stations. The plankton sampling method was carried out horizontally and identified using the Sedgwick Rafter Counting Cell (SRCC). Nitrate and phosphate water samples used for analysis were measured by Uv-Vis Spectrophotometry. Data analysis includes phytoplankton density, diversity index, uniformity index, and dominance index. The results showed that the composition of the phytoplankton species found during the observation was dominated by diatom classes (13 genera ) and dinoflagellates (2 genera). The abundance value of phytoplankton is 122.293 – 867.776 cells/m3. The water fertility status in the Porong River Sidoarjo is in the eutrophic category, namely waters with high fertility levels.]]>
<![CDATA[Pola Sedimentasi di Teluk Lamong, Surabaya, Jawa Timur ]]>
<![CDATA[Fitri Indah Kuntari]]>;
<![CDATA[Rudi Siap Bintoro]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 2 (2020): November ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v2i2.46
<![CDATA[This research to analyze sedimentation patterns in the waters of the Lamong Bay. This research was conducted in August 2018 until May 2019. The sampling of basic sediment were using sediment grab and the sampling of suspended sediment were using nansen bottle. The data used was tide data, river discharge, velocity and direction data of sediment data. The data which was obtained from survey would be processed in the Hidro – Oceanographic Laboratory of Hang Tuah University. The data includes data on grab sediment samples and until suspended sediment. For modeling sedimentation patterns was using software SMS using river discharge data and the results of processing suspended sediment. The result data from processing models in when the high tide the sediment concentration tends to be high and at low tide the concentration tends to be low. When the high tide ocean current would lead to the bay to the river and at low tide the ocean currents will flow into the river.]]>
<![CDATA[ANALISIS KESUBURAN PERAIRAN BERDASARKAN KELIMPAHAN FITOPLANKTON DI MUARA SUNGAI PORONG, SIDOARJO ]]>
<![CDATA[Devi Setyowardani]]>;
<![CDATA[Nor Sa’adah]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v3i1.54
<![CDATA[The disposal of Lapindo mud which carries nutrients and other dissolved organic matter can cause mass enrichment and death of organisms due to the reduced amount of light entering the waters. The existence of phytoplankton can provide information about the state of the waters. This study aims to determine the fertility of the waters of the Porong River through the abundance of phytoplankton. This research was conducted from October to January 2021. Sampling was carried out at three stations. The plankton sampling method was carried out horizontally and identified using the Sedgwick Rafter Counting Cell (SRCC). Nitrate and phosphate water samples used for analysis were measured by Uv-Vis Spectrophotometry. Data analysis includes phytoplankton density, diversity index, uniformity index, and dominance index. The results showed that the composition of the phytoplankton species found during the observation was dominated by diatom classes (13 genera ) and dinoflagellates (2 genera). The abundance value of phytoplankton is 122.293 – 867.776 cells/m3. The water fertility status in the Porong River Sidoarjo is in the eutrophic category, namely waters with high fertility levels.]]>
<![CDATA[PENGEMBANGAN WISATA BAHARI PULAU GILI LABAK MELALUI DIGITAL MARKETING ]]>
<![CDATA[Nirmalasari Idha Wijaya]]>;
<![CDATA[Wienta Diarsvitri]]>;
<![CDATA[Joko Subur]]>;
<![CDATA[Herman Herman]]>
<![CDATA[ As-Sidanah Vol 5 No 1 (2023): APRIL ]]>
Publisher : <![CDATA[LP2M Universitas Ibrahimy ]]>
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DOI: 10.35316/assidanah.v5i1.250-264
<![CDATA[Gili Labak Island is located in Kombang Village, Talango District, Sumenep Madura Regency. Marine tourism in Gili Labak is in the form of beach tourism (white sand) and snorkeling tours, because Gili Labak has an unspoiled and shallow coral reef ecosystem that is easily accessible to visitors. The current problem is the socio-economic gap between the local residents of Gili Labak Island and tour agents who are people from outside the island. In addition, there is a threat of damage to the coral reef ecosystem due to the activities of tourists who do not understand the code of conduct while traveling on coral reefs. The mentoring method used in this community service is PAR (Participatory Action Research). The UHT community service team built a website with the name https://wonderfulgililabak.com/ for the promotion of Gili Labak coral reef tourism. The dissemination of tour guides on coral reefs using leaflets in the local language (Madura) was quite effective in making local people and visitors understand the importance of preserving coral reef ecosystems. The use of websites for digital marketing of marine tourism in Gili Labak is still not effective due to the limited ability of local people to manage websites.]]>
<![CDATA[Estimasi Karbon Organik Sedimen di Ekosistem Mangrove Gunung Anyar, Surabaya ]]>
<![CDATA[Ramanda Reza Aldiano]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>;
<![CDATA[Mahmiah]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v4i2.55
<![CDATA[Mangroves are plants that can live in salty waters and areas tidal. Sediments store more than 50% of the carbon contained in the coastal ecosystem. This study aims to calculate the value of the content of carbon and soil density values. This research uses purposive sampling to determine the location and the LOI (loss on ignition) method to find out carbon content. Station 1 is located at Ecowista Mangrove, Station 2 is at ponds, and Station 3 on the coast. Sediment organic carbon percentage value Soil is obtained from the process of ashing soil organic matter. Average value the highest percentage of soil organic carbon content at all stations is located at a depth of 60- 100 cm, which is equal to station 1 (14.38%) and the estimated carbon The highest organic matter is located at station 1 at a depth of 60-100 cm (95,151 Mg/ha), for the highest overall organic carbon estimation is located at station 3 (252,900 Mg/ha). From the results obtained for the value of mangrove density and production Mangrove litter can be said to have a mutual influence on the carbon value organic sediment at a depth of 0-30 cm.]]>
<![CDATA[Estimasi Cadangan Karbon dan Serapan Karbondioksida Biomassa Tegakan Mangrove di Gunung Anyar, Surabaya ]]>
<![CDATA[Dandy Aditya Permana]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>;
<![CDATA[Mahmiah]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v4i2.56
<![CDATA[Mangrove forests are forests that are able to store carbon and absorb carbon dioxide with the best ability compared to other forests. This study aims to analyze the condition of the mangrove forest and to analyze the estimation of carbon stock and carbon dioxide uptake from tree stands and saplings in the Gunung Anyar mangrove forest. The main data needed in this research is the number of individuals and the amount of biomass of mangrove stands. The research method used is the survey method. Determination of the location and sampling technique was carried out by purposive sampling with 3 transect lines (Transect Line Plot). Estimation of carbon stock and carbon dioxide uptake was done by non-destructive method and allometric equation approach. The condition of the Gunung Anyar mangrove forest for tree stands was damaged, while the saplings were good, the dominant type of mangrove was Avicennia marina. The estimated carbon stocks of tree stands and saplings were 38.67 tons C/ha and 9.26 tons C/ha, respectively. The carbon absorption of tree stands and saplings was 71.25 tons CO2/ha and 34.99 tons CO2/ha.]]>
<![CDATA[Dampak Sampah Anorganik terhadap Vegetasi Mangrove Tingkat Semai di Ekosistem Mangrove Wonorejo Surabaya ]]>
<![CDATA[Sherlin Fatwa Fatmalah]]>;
<![CDATA[Nor Sa'adah]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v4i2.57
<![CDATA[The Wonorejo mangrove area is a mangrove forest area that has innovated into an ecotourism area, resulting in a lot of garbage found in the mangrove forest area from visitors. Inorganic waste is waste produced from non-biological materials in the form of synthetic products or the result of technological processes for managing mining materials or natural resources and cannot be decomposed by nature, for example plastic. Mangrove vegetation at the seedling level is rejuvenation from sprouts to a height of 1.5 m. The objectives of the study were to identify the density of inorganic waste in the mangrove vegetation at the seedling level, to analyze the density of the vegetation at the seedling level, to analyze the impact of inorganic waste on the growth of the vegetation at the seedling level. The method used to measure the density of mangroves and waste density using Line Plot Transects. The most waste found was 46 plastic bottles, and other inorganic waste found was styrofoam, and the density of seedlings was 2200 seedlings/ha. The relationship between waste density and seedling density showed (R²) of 0.8399 which indicated that the negative correlation was the more waste, the less seedlings. The impact caused by inorganic waste can threaten mangrove plants, especially at the seedling level and the life of the biota in the ecosystem.]]>
<![CDATA[Pengaruh Metode Transplantasi Karang terhadap Tingkat Kelulushidupan Karang di perairan Pasir Putih Situbondo ]]>
<![CDATA[Clara Cantika Raharto]]>;
<![CDATA[Nirmalasari Idha Wijaya]]>;
<![CDATA[Rudi Siap Bintoro]]>
<![CDATA[ Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November ]]>
Publisher : <![CDATA[Universitas Hang Tuah ]]>
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DOI: 10.30649/jrkt.v4i2.59
<![CDATA[Pasir Putih Waters Situbondo has beautiful coral reefs and is often used for diving activities. Due to the large amount of coral damage caused by the activities of tourists or divers, coral transplants were carried out in these waters. The Diving UKM of Hang Tuah University has carried out coral transplantation using the bioreeftek method and the shelf and substrate method while the community has carried out coral transplantation using the rack, net and substrate method. This study aimed to determine the effect of the coral transplantation method on the survival rate of corals. The data collection locations were divided into three stations with different transplantation methods, namely station 1 (bioreeftek method) and station 2 (shelf and substrate method). This research method used descriptive analysis to determine the relationship between coral transplantation method with coral survival rates and to determine the relationship between oceanographic parameters and coral survival rates. The results showed that the survival rate of corals at station 1 were 56%, station 2 was 89%, station 3 was 20%. They showed that the coral survival rate at station 2 with the shelf and substrate method had better results. The method had high shelf legs to avoid stirring the bottom of the waters by currents or waves so that the sediment did not reach the bottom of the shelf and made of iron, which is stronger and stronger.]]>
