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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

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

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.

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

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

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

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

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

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

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.

INTEGRATED PROGRAMS (IP) PADA PROGRAM KEMITRAAN MASYARAKAT (PKM) DI UKM SRIKANDI DAN UD. BAROKAH, KELURAHAN SUKOLILO BARU, KECAMATAN BULAK, SURABAYA Theresia Widihartanti; Aniek Sulestiani; Titiek Indhira Agustin; Nirmalasari Idha Wijaya; Urip Prayogi
Jurnal Aplikasi dan Inovasi Iptek Vol 1 No 2 (2020): Jurnal Aplikasi dan Inovasi Iptek Vol. 1 No. 2 April, 2020
Publisher : Denpasar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52232/jasintek.v1i2.32

Kelurahan Sukolilo Baru merupakan salah satu pusat tujuan wisata yang berfokus pada penjualan produk perikanan kering dan setengah jadi sehingga banyak diminati oleh wisatawan. Namun, penataan ruang pengolahannya sangatlah jauh dari standar yang memadai. Integrated Programs (IP) pada pengabdian kepada masyarakat tersebut meliputi (a) Tutorial tentang budidaya terung dan teripang; (b) Tutorial tentang GMP; (c) Pembuatan alat penjemur kerupuk sebagai teknologi tepat guna. Penjemuran bahan kerupuk berbahan baku hasil laut masih mengandalkan sinar matahari dan masih memakai ruang di pinggir-pinggir jalan. Salah satu alat yang dibutuhkan adalah alat penjemuran terung dan teripang basah yang tahan cuaca. Hal inilah yang menjadi landasan Fakultas Teknik dan Ilmu Kelautan UHT untuk mengimplementasikan pengetahuan dalam bidang tekniknya untuk membuat alat penjemur yang tepat guna dengan menggunakan lahan yang sangat terbatas, yaitu di atas gudang penyimpanan terung dan teripang kering. Dengan menggunakan alat penjemur kaca tersebut, lama penjemuran menjadi 3 hari dari yang sebelumnya yaitu 7-10 hari, sehingga keefektifan alat penjemur tersebut telah dapat dibuktikan; (d) Pengurusan PIRT sebagai legalitas produk untuk dikonsumsi. Dengan demikian, Integrated Programs (IP) yang dilaksanakan oleh tim Penmas FTIK berhasil dalam meningkatkan kesejahteraan warga Kelurahan Sukolilo Baru, Surabaya.

MODEL PENGELOLAAN KEPITING BAKAU UNTUK KELESTARIAN HABITAT MANGROVE DI TAMAN NASIONAL KUTAI PROVINSI KALIMANTAN TIMUR (The Model of Mud Crab (Scylla serrata) Management for Habitat Preservations of Mangrove in Kutai National Park, East Kalimantan Province) Nirmalasari Idha Wijaya; Fredinan Yulianda
Jurnal Manusia dan Lingkungan Vol 24, No 2 (2017): Mei
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.23079

AbstrakTaman Nasional Kutai (TNK) memiliki ± 5.227 ha hutan mangrove di sepanjang pesisir pantainya. Hampir 23% luas hutan mangrove ini mengalami degradasi akibat konversi lahan dan pemanfaatan yang merusak. Kepiting bakau (Scylla serrata) merupakan salah satu sumberdaya yang terdapat dalam ekosistem mangrove, yang dapat dimanfaatkan untuk budidaya sylvofishery. Pemanfaatan ini merupakan mata pencaharian alternatif bagi penduduk lokal dalam kawasan TNK agar dapat memenuhi kebutuhan hidupnya tanpa merusak hutan mangrove. Model pemanfaatan sylvofishery kepiting bakau disusun dari 5 submodel, yaitu habitat mangrove, penangkapan kepiting, budidaya pembesaran kepiting, pasar, dan sosial. Hasil simulasi terhadap model dinamik, menunjukkan bahwa skenario optimistik memberikan kinerja model yang lebih berkelanjutan untuk pengelolaan hutan mangrove di TNK, bila dilakukan dengan pendekatan optimasi pemanfaatan sumberdaya S. serrata. Dengan sylvofishery diharapkan akan terjadi keseimbangan antara pemanfaatan dan kelestarian lingkungan hutan mangrove.AbstractThe National Park Kutai (TNK) has ± 5,227 ha mangrove forest in along coastal beach. Therefore, almost 23% of mangrove forest was degraded caused by land conversion and utilization of damaged. Mud crab (Scylla serrata) is one of the resources in mangrove ecosystem, and it can be utilized for the cultivation sylvofishery. The utilization of sylvofishery was an alternative livelihood for the local resident in TNK areas that was not damaged their forest necessity. The model of sylvofishery utilization mud crab prepared were 5 sub-models, such as mangrove habitat sub-model, catching mud crab sub-model, enlargement cultivation of mud crab sub-model, market sub-model and social sub-model. The simulation results showed that an optimistic scenario performance model to sustainable for management of mangrove forest in TNK if it was conducted with optimization approached resources in utilization of S. serrata. With silvofishery, it is expected to give a balance between utilization and conservation of mangrove ecosystems.

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