Batu Karas beach at Pangandaran Regency, West Java Province has the potential of natural beauties that can be used as an ecotourism object. The purpose of this study was to determine the ABSTRAKPantai Batu Karas di Kabupaten Pangandaran memiliki potensi sumber daya alam yang dapat digunakan sebagai objek wisata. Penelitian ini bertujuan menentukan nilai ekonomi wisata berbasis jasa lingkungan dan mengindentifikasi faktor-faktor yang mempengaruhi permintaan pengunjung ke Pantai Baru Karas. Metode Biaya Perjalanan Individu (Individual Travel Cost Method) dipilih untuk mengestimasi potensi ekonomi aktivitas wisata di Pantai Batu Karas, sedangkan faktor-faktor yang mempengaruhi permintaan pengunjung ditentukan dengan analisis regresi linear. Data diperoleh melalui kuesioner kepada para pengunjung. Hasil penelitian menunjukkan variabel biaya perjalanan, jarak tempuh dan durasi kunjungan berpengaruh signifikan terhadap tingkat kunjungan wisatawan ke Pantai Batu Karas. Model permintaan wisata ke Pantai Baru Karas berdasarkan biaya perjalanan yaitu Y = 1.766 -0.000001887 X 1 ketika Y adalah tingkat kunjungan dan X1 adalah biaya perjalanan. Potensi ekonomi ekowisata di Pantai Batu Karas mencapai Rp 86,571,960,874.00 per tahun dengan nilai surplus konsumen sebesar Rp 566,183.00
<strong>Carbon Stock Estimation in Seagrass Biomass on Semak Daun Island, Thousand Islands</strong>. Seagrass ecosystem has a vital role in protecting the coastal ecosystem. It can also sequester and store carbon as an organic material (blue carbon) for a long time. However, anthropogenic activities in coastal areas give environmental stress on the seagrass ecosystem. This research was conducted to assess the carbon stock of seagrass biomass in Semak Daun Island in order to evaluate the potential of the seagrass meadows in sequestering carbon. Sampling and observation were held in the seagrass ecosystem to obtain seagrass density, biomass, frequency of occurrence, water quality, and anthropogenic activity. Carbon stock was calculated by the loss of ignition (LOI) method, and combined with density to determine the total carbon stock in the whole area of seagrass meadows. Seagrass species in Semak Daun Island consist of Halophila ovalis, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, and Halodule uninervis. The coverage area of seagrass in Semak Daun Island was 9.1 ha with carbon stock value of 1.84 ton C or equivalent to 6.76 ton CO2. Fifty two percent of the carbon stock was originated from the below-ground biomass and 48% from the above-ground biomass.
Marine tourism activities in small islands have an important role in the development of Indonesia maritime sector. This study aimed to estimate the economic value of marine tourism activities in Untung Jawa Island. Individual Travel Cost Method (ITCM) was selected to analyze the level of tourism demand of Untung Jawa. Samples were taken from three different season visits are weekday, weekend, and national holidays. The results showed the factors that have an effect on the level of tourist demand of Untung Jawa Island are travel cost, income, and distance to the location. The potential economic value of marine tourism Untung Jawa Island was IDR 68,505,101,600 with consumer surplus of IDR 397,592 per individual trip. This value is higher than the average of actual visitor expenditure which reached IDR 296,860 per individual trip. Tourism activity has a positive impact on economic conditions of local communities. The results of this study have provided useful information for sustainable management of marine resources.
Komodo National Park is one of the favorite destinations for both domestic and international marine tourism. Marine tourism activities have caused environmental changes and impact on fisheries and marine resources. Macroalgae were also affected by the environmental changes, so management of macroalgae was required. Ecological data of macroalgae can be used as baseline data for coastal area management. The study aimed to determine the life form, species composition, spatial distribution, and ecological aspects of macroalgae assemblages in Komodo National Park waters. The study was conducted in September 2013, in eight locations, namely Setuga, Komodo Karang Makasar, Padar Kecil, Padar, Papagarang, Mangaitan, and Muntia island. Macroalgae samples were collected by the quadratic transect method. The data analyzed were Sorensen’s similarities. A total of 42 species of macroalgae were recorded, consisting of three Phylum: Chlorophyta (19 species), Ochrophyta (8 species), and Rhodophyta (15 species). Epilithic was the dominant life form of macroalgae. In general, macroalgae can be stably attached to hard substrates. The highest macroalgae diversity was found on Mangaitan Island (22 species). Halimeda and Amphiroa were macroalgae that can be found in almost all locations. Setuga Island had similar macroalgae with both Mangaitan and Muntia islands. The differences in the number of macroalgae species were influenced by environmental pressure, topography, and substrate profile. Management of macroalgae resources was needed to maintain the sustainability of the macroalgae ecosystem.
The COVID-19 pandemic has impacted the seaweed industry and business. The export-import trade is the most severely impacted sector, mainly the raw material export of seaweed. The purpose of this study was to determine how smallholder farmers in West Nusa Tenggara, Indonesia, can survive under adverse conditions and maintain their businesses during a pandemic. The research was conducted through a combination of field surveys and in-depth interviews with respondents. Interviews were performed using a variety of instruments, including questionnaires and cameras. According to the study's findings, smallholder farmers are impacted by a decline in prices and demand. Smallholder farmers in West Nusa Tenggara, Indonesia, are attempting to adapt or adjust their operations to maintain profitability. Seaweed farmers make significant savings and cut their spending in the event of a pandemic. What is intriguing is that respondents did not reduce their spending on food. Instead, they prioritize reducing tertiary needs. Additionally, the same holder farmer borrows from collectors, borrows from the bank, and works side jobs. Thus, seaweed farmers are relatively unaffected by this pandemic and recover more quickly than other types of fishery businesses.Keywords: Covid 19, seaweed, smallholder farmer, Nusa Tenggara Barat
A study aiming to compare the abundance and species composition of invertebrates among four sites (Strickland East, Strickland West, Strickland Far East and North Point) on intertidal rocky platforms around Rottnest Island, Western Australia was conducted in January 2018. Eight quadrats with 1m by 1m dimension were haphazardly placed at each of three zones in the sampling site including the inner, middle and outer zone in relation to the shoreline in order to obtain the data of invertebrate community structure. The result of a one-way ANOVA test with a robust covariance matrix showed that the intertidal invertebrate abundance among the four sampling sites was statistically significant different (P<0.05). Then, a further test using Tukey post hoc analysis found that invertebrate abundance at Strickland East was significantly different with the assemblage of invertebrate at North Point, Strickland West and Strickland Far East at the level of significance of 1%, 5% and 10%, respectively. Whereas the cluster analysis revealed that there were two clusters of invertebrate species at Rottnest Island. In the future, it is recommended to conduct an invertebrate community structure monitoring program consistently every year covering all intertidal sites around Rottnest Island in order to obtain reliable data useful for conservation and management purposes.
Green Canyon merupakan salah satu destinasi tempat wisata unggulan di Kabupaten Pangandaran, Jawa Barat. Potensi sumber daya alam yang dimiliki Green Canyon telah mengundang banyak pengunjung untuk datang berwisata. Penelitian ini bertujuan untuk menghitung potensi nilai ekonomi dari objek wisata Green Canyon serta mengidentifikasikan faktor-faktor yang berpengaruh terhadap tingkat kunjungan wisatawan ke Green Canyon. Metode Biaya Perjalanan Individu (Individual Travel Cost Method) dipilih untuk mengestimasi potensi ekonomi aktivitas wisata di Green Canyon Pangandaran, sedangkan faktor-faktor yang mempengaruhi permintaan pengunjung ditentukan dengan analisis regresi linear dan data diperoleh melalui kuisioner kepada para pengunjung. Hasil uji statistik menunjukan bahwa variabel biaya total perjalanan, pendapatan, dan jarak tempuh berpengaruh signifikan terhadap tingkat kunjungan wisatawan ke Green Canyon. Model permintaan wisata ke Green Canyon berdasaran biaya perjalanan yaitu Y= 2,223 – 0,00000084 X1 ketika Y adalah tingkat kunjungan dan X1 adalah biaya perjalanan. Potensi nilai ekonomi wisata Green Canyon mencapai Rp 210.062.900.138 per tahun dengan nilai surplus konsumen sebesar Rp 1.417.839 per individu per tahun. Potensi nilai ekonomi Green Canyon memiliki dampak positif terhadap peningkatan ekonomi masyarakat setempat, baik secara langsung maupun tidak langsung.
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