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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Penelitian Hutan dan Konservasi Alam BERITA BIOLOGI Indonesian Fisheries Research Journal Jurnal Aplikasi dan Inovasi Iptek (JASINTEK) Jurnal Layanan Masyarakat (Journal of Public Service) Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) As-Sidanah : Jurnal Pengabdian Masyarakat Jurnal Riset Kelautan Tropis (J-Tropimar) Jurnal Manusia dan Lingkungan
Nirmalasari Idha Wijaya
Universitas Hang Tuah
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Social Sciences Other

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Journal : Jurnal Riset Kelautan Tropis (J-Tropimar)

 1 
Pola Sedimentasi di Teluk Lamong, Surabaya, Jawa Timur Fitri Indah Kuntari; Rudi Siap Bintoro; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 2 (2020): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i2.46

Abstract

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.
ANALISIS KESUBURAN PERAIRAN BERDASARKAN KELIMPAHAN FITOPLANKTON DI MUARA SUNGAI PORONG, SIDOARJO Devi Setyowardani; Nor Sa’adah; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.54

Abstract

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.
Estimasi Karbon Organik Sedimen di Ekosistem Mangrove Gunung Anyar, Surabaya Ramanda Reza Aldiano; Nirmalasari Idha Wijaya; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i2.55

Abstract

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.
Estimasi Cadangan Karbon dan Serapan Karbondioksida Biomassa Tegakan Mangrove di Gunung Anyar, Surabaya Dandy Aditya Permana; Nirmalasari Idha Wijaya; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i2.56

Abstract

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.
Dampak Sampah Anorganik terhadap Vegetasi Mangrove Tingkat Semai di Ekosistem Mangrove Wonorejo Surabaya Sherlin Fatwa Fatmalah; Nor Sa'adah; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i2.57

Abstract

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.
Pengaruh Metode Transplantasi Karang terhadap Tingkat Kelulushidupan Karang di perairan Pasir Putih Situbondo Clara Cantika Raharto; Nirmalasari Idha Wijaya; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 2 (2022): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i2.59

Abstract

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.
Produksi dan Laju Dekomposisi Serasah Daun Mangrove di Kawasan Wisata Mangrove Gununganyar Surabaya Meisel Kristian Dui; Nirmalasari Idha Wijaya; Nor Sa'adah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 1 (2022): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i1.63

Abstract

Mangrove litter has a very important function for the mangrove ecosystem, including to maintain the fertility of the forest soil in question. This study aims to determine the production and rate of decomposition in the Gununganyar Mangrove Tourism Area. The study was conducted by installing a litter net or litter-trap as a container for fallen mangrove leaves, this was done to determine the productivity of mangrove leaf litter, litter collection on the litter-trap was carried out for 1 month and was taken at 30-day intervals and installed a litter-bag for placing mangrove leaf litter. The litter production at Station 1, Station 2 and Station 3 was 194.976 kg/ha/month, 681.84 kg/ha/month, 925.275 kg/ha/month. The results of the litter decomposition rate in the Gununganyar Mangrove Tourism Area from Station 1, Station 2, and Station 3 were 97.95%, 60.35% and 89.25%, respectively.
Kelimpahan Ikan Clownfish (Amphiprioninae Ocellaris) Sebagai Bioindikator Kondisi Karang Di Gili Labak, Madura Yunita Vernandha; Nirmalasari Idha Wijaya; Nor Sa'adah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 4 No 1 (2022): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v4i1.65

Abstract

  Coral reefs are a habitat for more than 300 types of coral, 200 species of fish, and various other invertebrates such as molluscs, crustaceans, sponges, algae, and other biotas. Sea anemones are sea animals from the Anthozoa taxonomic class, which are flower-shaped. Clownfish have an attractiveness with its the color which has a basic color pattern with a combination: red - white, red - black and black - yellow - white. The purpose of this research is to analyze the condition of the corals and the abundance of clownfish on Gili Labak Island, Sumenep. This research was conducted in October 2021 on Gili Labak Island, Sumenep. The method used to collect data on the condition of coral reefs is using a belt transect with a length of 50 m parallel to the shoreline to collect data on the abundance of clownfish using the UVC (underwater visual census) method and to collect data on brightness, salinity, temperature and current velocity using in situ data (direct). The results obtained from this research is the relationship between coral reef conditions and clownfish, namely a positive correlation with a coefficient of determination (R²) = 0.8048. The relationship between coral reef conditions and sea anemone abundance is a negative correlation with the coefficient of determination (R²) = 0.2049.
Co-Authors Aniek Sulestiani Aniek Sulestiani Bintoro, Rudi Siap Clara Cantika Raharto Dandy Aditya Permana Devi Setyowardani Fajar Setiawan Fajar Sumi Lestari Fitri Indah Kuntari Fredinan Yulianda Herman Herman Ivana Yuniarti Joko Subur Kuntari, Fitri Indah Laksono Trisnantoro Mahmiah Meisel Kristian Dui Muhammad Huda Ninis Trisyani Nor Sa'adah Nor Sa’adah Ramanda Reza Aldiano Rianta Pratiwi Rianta Pratiwi Rudi Siap Bintoro Sherlin Fatwa Fatmalah Sutrisno Sutrisno Theresia Widihartanti Theresia Widihartanti Titiek Indhira Agustin Titiek Indira Agustin Triyanto Triyanto Urip Prayogi Urip Prayogi Wienta Diarsvitri Yunita Vernandha