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Perbedaan Geomorfologi Lahan Desa Rempek dan Desa Pusuk Tanjung Kabupaten Lombok Utara, Nusa Tenggara Barat Salwa, Hanna; Jayawangsa, Rahman; Parwati, Galuh; Ashari, Rowi; Andriyani Lestariningsih, Wiwid; Larasati, Chandrika Eka
Jurnal Ilmu Kelautan Lesser Sunda Vol. 5 No. 1 (2025): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v5i1.127

Abstract

There are two villages in North Lombok Regency, namely Rempek Village and Tanjung Village which have many clusters of hills which are usually connecting routes between districts, namely West Lombok Regency and North Lombok Regency. This study aims to determine the differences in land forms in two villages, namely Pusuk Tanjung Village and Rempek Village, North Lombok Regency. The data identified the geomorphology of the landform using remote sensing, digital elevation models (DEM), and interview observation data. It is known that the slope in the Rempek Village area has a slope that varies with lowland formations, highlands, and there are low hills, steep hills, and mountains. which has hilly areas with the potential for landslides caused by porous soil structures and Pusuk Tanjung Village with land formations. lowlands, mountains, low hills, and high hills and steep hills that have the potential for landslides which are influenced by human activities (anthropogenic) due to dredging of hills which are used as road access.
Abundance of Plankton Types and Diversity in The Water of Teluk Nare, North Lombok Wulandari, Dwi Januar; Larasati, Chandrika Eka; Paryono, Paryono
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9576

Abstract

Teluk Nare, situated in North Lombok Regency, is a coastal region abundant in marine resources, serving as a hub for fisheries and marine tourism. This research seeks to evaluate the abundance and diversity of plankton as a measure of the ecological health of Teluk Nare’s aquatic environment. Sampling was conducted in February 2025 across ten stations using the purposive sampling technique. Water samples were collected with a plankton net, preserved using Lugol’s solution, and analyzed at the University of Mataram’s Hydrobiology Laboratory. The findings revealed 18 plankton genera from seven classes, with Coscinodiscus, Copepoda, and Nauplius being the most prevalent across all stations. Plankton abundance ranged from 12,000 to 32,333 cells per liter, with the highest concentrations observed near river estuaries. The diversity index indicated moderate levels (1.67–2.08), the evenness index was high (0.71–0.89), and the dominance index was low (0.16–0.26), suggesting no single dominant species and a relatively stable ecosystem. Factors such as currents, salinity, and water transparency were found to influence plankton distribution and abundance. These results offer valuable insights for the sustainable management of Teluk Nare’s coastal ecosystem.
Distribution and Composition of Waste on the Coast of Gili Trawangan Sabilillah, Sabilillah; Larasati, Chandrika Eka; Virgota, Arben
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9580

Abstract

The coastal area of Gili Trawangan, a prominent tourism destination, is facing increasing ecological pressure due to intensified tourism activities and population growth. This study aims to analyze the distribution and composition of macro debris along the coast of Gili Trawangan, North Lombok Regency. This study used transect and quadrat methods, as well as marine debris classifications according to NOAA and Tangavoa Blue. The results showed that the highest amount of waste was plastic (71%), followed by glass (13%), and ceramics (8%). The highest waste distribution was found at the port (62kg) and tourist areas (30%). These findings highlight that inadequate waste management and low public awareness significantly contribute to coastal pollution. Therefore, an integrated waste management strategy and increased public participation are urgently needed to preserve the marine ecosystem of Gili Trawangan.
Diversitas Plankton di Perairan Pantai Sire Kabupaten Lombok Utara Astriana, Baiq Hilda; Larasati, Chandrika Eka
Jurnal Ilmu Kelautan Lesser Sunda Vol. 1 No. 1 (2021): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v1i1.26

Abstract

Plankton has an important role for aquatic ecosystems, especially in the food network in a waters. This study aims to assess the abundance and diversity index of plankton in Sire Beach, North Lombok Regency. The study was conducted in September 2019 using purposive sampling with 9 sample points. The water sample was filtered using plankton net then put into the sample bottle for identification in the laboratory. Shannon-Wienner Index was used for determining diversity of plankton species. The types of plankton found were 12 genera of phytoplankton from the Bacillariophyta group, including: Biddulphia, Coscinodiscus, Cocconeis, Cylindrotheca, Diploneis, Fragilaria, Gyrosigma, Licmophora, Navicula, Nitzschia, Pleurosigma, and Triceratium. The highest abundance of phytoplankton belonged to Coscinodiscus species as many as 1.380 cells/l at station 2.3. The high abundance of Coscinodiscus might be due to a nutrient supply in these waters. Seagrass ecosystem was thought to have an important role in obtaining nutrients for phytoplankton. Diversity index has a value which ranges between 1.117505-1.841236 showing that it is in the medium category. The uniformity index ranges from 0.450718-0.673373 indicating that the distribution of plankton species in each station is even. The dominance index ranges from 0.233508-0.522215. This shows that there is no type of plankton that dominates the waters of Sire Beach. This is due to the abundance of plankton species at each station which is fairly evenly distributed.
Komposisi Jenis dan Distribusi Gastropoda pada Ekosistem Mangrove di Pulau Tunda, Kabupaten Serang Banten, Jawa Barat Larasati, Chandrika Eka; Wahyudi, Rhojim
Jurnal Ilmu Kelautan Lesser Sunda Vol. 2 No. 2 (2022): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v2i2.63

Abstract

Tunda Island is one of a group of islands located in the northern area of Banten Province. In the eastern and southern parts of Tunda Island, there is a mangrove ecosystem which is a habitat for various organisms, one of which is gastropods. In the mangrove ecosystem, some gastropods live on the roots, stems, and leaves of mangroves by sticking and climbing, clinging to dead wood, to the muddy ground. It is necessary to know the type composition and distribution of gastropods in the mangrove ecosystem found on Tunda Island, Serang Regency, Banten. Gastropod sampling was carried out on a 5 x 5 m2 plot at the lowest tide. All types of gastropods found in the plots were taken by hand. The gastropod samples obtained were then cleaned and put in a sample bottle, then given a 70% alcohol solution as initial preservation for further identification at the Laboratory of Dry Hydrobiology, Marine Science and Technology, FPIK, Bogor Agricultural University. There are 19 types of gastropods found in the mangrove ecosystem of Tunda Island from 11 families, including: Cerithidea cingulata, Telescopium telescopium, Terebralia sulcata, Terebralia palustris, Cerithium kobelti, Chicoreus capucinus, Coralliophila persica, Littoraria scabra, Mitrella puella, Xenorita plana. indica, Clea helena, Morula biconica, Phos senticosus, Fissilabia decollate, Monodonta canalifera, Imbricaria vanicorensis. Based on the index value of the diversity index (H') (0.06 – 0.21 < H'< 2.0), dominance (D) (0.03 – 0.19 < D<0.50) and uniformity (E) (0.03–0.13) obtained, the gastropods found in the mangrove area on Tunda Island with a low level of diversity.
Potensi dan Strategi Ekowisata Kreatif Berbasis Mangrove di Desa Jerowaru Kabupaten Lombok Timur Anggriani, Anggi; Damayanti, Ayu Adhita; Larasati, Chandrika Eka
Jurnal Ilmu Kelautan Lesser Sunda Vol. 4 No. 1 (2024): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v4i1.104

Abstract

Jerowaru Village is one of the tourist villages in Jerowaru District, East Lombok Regency. Jerowaru Village has the potential for natural beauty in the form of beaches and tens of hectares of mangrove trees which are still natural and have been preserved. The method used is primary and secondary data, where primary data includes association biota, community participation & perception and stakeholder participation and secondary data includes mangrove density. Sample collection was carried out at five sampling points around the mangrove which represented the habitat of the associated biota using 1x1m quadrants. The results show that there are 11 types of association biota, including Cassidula aurisfeli, Cassidula nucleus, Cassidula sp, Littoraria scabra, Monodonta consufa, Nerita lineata, Nerita undata, Pila scutata, Pythia scarabeus, Strobus mutabilis, Terebralia sulcata. Also, there is 1 type of Bivalvia, namely Perna viridis. Developing all existing potential such as vegetation potential or mangrove density, associated biota, supporting facilities for mangrove tourism forests, as an alternative environment-based tourism to meet the demand of the people of East Lombok for tourism needs. Based on the average density value at each station, station I has a density value of 0.15 ind/m2. Station II has a density of 0.09 ind/m2 and station III has a density value of 0.06 ind/m2.
Teknik Pelestarian Habitat Penyu Lekang (Lepidochelys olivacea) di Kawasan Konservasi Penyu Kurma Asih, Desa Perancak, Kabupaten Jembrana, Bali Rahman Jayawangsa; Larasati, Chandrika Eka
Jurnal Ilmu Kelautan Lesser Sunda Vol. 4 No. 1 (2024): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v4i1.105

Abstract

The Olive Ridley Sea Turtle population in Indonesia continues to decline due to natural and human factors. So it is necessary to conserve it so that its population does not become extinct. One of the conservation areas that protect sea turtle eggs is in the Kurma Asih Conservation Area, Perancak Village, Jembrana Regency, Bali. This study aims to observe and collect physical data on beach habitats that are considered suitable as sea turtle nesting habitats and collect data on Olive Ridley Sea Turtle tracks and nests in Perancak Village. Data collection is done by going directly to the field (monitoring) to find out the location of nesting turtles. The data required are beach characteristics, characteristics of nests and potential predators of eggs and turtle identification. The results showed that the characteristics of the turtle nesting beach were that there were 7 types of vegetation identified such as waru trees, coconut trees, pandanus trees, katang-katang plants, weeds, bushes and rolling plants, the texture of the beach sand sediments was fine and black in color. 19 individual Olive Ridley sea turtles were found, with 22 nests, and 23 turtle tracks. There are human and dog footprints around the coastline that are potential predators for sea turtle eggs. The results of this observation can be recommended to those who need to keep the location well maintained, so that sea turtles will always land
Studi Komposisi Jenis Sampah Pesisir pada Lokasi Wisata Alam di Pulau Lombok Jumiarti; Waspodo, Saptono; Larasati, Chandrika Eka
Jurnal Ilmu Kelautan Lesser Sunda Vol. 3 No. 2 (2023): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v3i2.111

Abstract

Water characteristics such as currents at Sedayu Beach, Penghulu Agung Beach, and Kuranji Beach have a role in transporting marine waste. Likewise, with the ebb and flow of sea water, the tides will bring marine waste towards the coast so that a lot of rubbish will accumulate on the coast. The dominant type of rubbish is plastic rubbish, which is the type of sea rubbish that is most commonly found on Kuranji Beach at 0.64 pcs/m², for Penghulu Agung Beach. as much as 0.84 pcs/m², and Sedayu Beach as much as 7.4 pcs/m², of the total three marine waste reports from research results related to types of marine waste in Indonesia itself, the composition of plastic waste has continued to increase by 5-6% since 2000. According to data from the Plastics Industry Association Indonesia and the Central Statistics Agency in 2018, plastic waste in Indonesia reached 64 million tons per year, and 3.2 million tons of it was thrown into the sea.
Komposisi Jenis Fitoplankton Di Perairan Teluk Swage, Desa Pemongkong Kabupaten Lombok Timur Dewi, Sirrul Aini Sukma; Larasati, Chandrika Eka; Buhari, Nurliah
Jurnal Ilmu Kelautan Lesser Sunda Vol. 3 No. 2 (2023): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v3i2.113

Abstract

Swage Bay is widely used as a fishing cultivation location. This activity is supported by looking at the fertility level of the waters such as looking at the presence of phytoplankton types. This research aims to determine the composition of phytoplankton types. The method used was purposive sampling, by taking 15 sampling locations. Then it is filtered using a plankton net and given Lugol's solution as a preservative. The results showed that there were 15 species found with 12 species from the Bacillariophyceae group and 3 species from the Dinophyceae group. The most common type of phytoplankton found at station 2 was Amphisolenia sp (117 cells/L). The highest total abundance of phytoplankton was at station 1 at 240 cells/L. The high number of Amphisolenia sp species in all stations is thought to be due to the observation location being close to the river estuary which has sufficient nutrient content to meet growth. The ecological index is the highest diversity index at station 11 (2.12), which indicates moderate diversity status. The highest uniformity index is at stations 5 & 6 (0.97) which indicates the high uniformity category. The highest dominance index value is at station 2 (0.6), which indicates that there is a dominant species. The Amphisolenia sp type is thought to be able to adapt to any type of aquatic environment.
Antioxidant and Anti-inflammatory Potential of Sargassum sp Extract in Lotion Preparations Safitri, Dwi; Yuliani, Dina; Aldi, M Fardinal; Julfika, Titi; Larasati, Chandrika Eka; Rahman, Ibadur; Jefri, Edwin
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6660

Abstract

Sargassum sp. is a type of brown algae found in Indonesian marine waters with great potential in the food and pharmaceutical industries. There is antioxidant and anti-inflammatory potential in Sargassum sp. extract so that it makes this type utilised as a lotion preparation. It is necessary to know the potential of Sargassum sp. extract in making lotions. This research uses extraction method to produce Sargassum sp. extract with organic solvent extraction technique, namely alcohol. In addition, the emulsion method was used in the manufacture of lotion preparations. Furthermore, secondary metabolites and anti-inflammatory (irritation) tests were conducted. In addition, the lotion preparation can be evaluated by conducting organoleptic, pH, and homogeneity tests.  The results showed that the Sargassum sp. extract contained significant antioxidant compounds, as indicated by a decrease in DPPH absorbance. Sargassum extract contains alkaloid, flavonoid, saponin, and tannin. In addition, lotion preparations containing Sargassum sp. extract also showed a significant decrease in pro-inflammatory cytokine expression in skin cells exposed to UVB radiation. In addition, the irritation test showed negative results with a safety level without causing irritation to the skin. These findings indicate the potential of Sargassum sp. extract in producing lotion preparations with antioxidant and anti-inflammatory effects that can contribute to skin protection from oxidative damage and inflammation.