ABSTRAK Transplantasi karang merupakan salah satu upaya dalam memulihkan kondisi terumbu karang yang semakin mengalami degradasi. Transplantasi dapat dilakukan menggunakan berbagai media, salah satunya adalah dengan kanstin FABA dari limbah padat batu bara fly ash bottom ash yang dihasilkan oleh PLTU Paiton. Fragmen karang batu Acropora spp. ditransplantasikan pada dua kedalaman berbeda. Metode penentuan titik pengamatan menggunakan purposive sampling dengan pertimbangan jarak lokasi transplantasi ke lokasi bibit (± 7 meter). Penelitian ini menggunakan metode eksperimental dengan membandingkan dua kondisi penelitian, yaitu transplantasi pada kedalaman 6 m dan 8 m dengan 10 fragmen Acropora formosa dan 10 fragmen Acropora intermedia di setiap kedalaman. Pengamatan dilaksanakan setiap dua minggu meliputi faktor oseanografi dan laju pertumbuhan karang. Hasil penelitian menunjukan bahwa faktor oseanografi di lapangan menunjukan nilai yang sesuai untuk mendukung pertumbuhan karang. Laju sedimentasi tertinggi terdapat di kedalaman 8 m yaitu sebesar 25,57 mg/cm2/hari yang termasuk dalam kategori sedang dan mempengaruhi kelimpahan karang. Pengaruh ini dibuktikan adanya kematian Acropora spp. menjadi death coral algae dengan indeks mortalitas sebesar 0,1. Laju pertumbuhan karang transplantasi pada kedalaman 6 m sebesar 2,2 mm/minggu untuk Acropora formosa dan sebesar 3,1 mm/minggu untuk Acropora intermedia, sedangkan kedalaman 8 m Acropora formosa memiliki laju pertumbuhan sebesar 2,0 mm/minggu dan sebesar 2,4 mm/minggu untuk Acropora intermedia. Faktor oseanografi dengan pengaruh dominan terhadap laju pertumbuhan yaitu salinitas dengan koefisien korelasi 0.853 (hubungan searah) dan kedalaman memiliki pengaruh dengan hubungan terbalik yaitu -0.244. Laju sedimentasi memiliki koefisien korelasi sebesar 0.8 terhadap pertumbuhan dan 0.54 terhadap mortalitas. Kata Kunci: Transplantasi karang batu, kanstin FABA, indeks mortalitas, PCA.
Guna mengetahui potensi bioaktivitas senyawa yang terkandung serta mengetahui uji ekstrak spons Ptilocaulis marquezii terhadap pertumbuhan bakteri Eschercia coli. Penelitian dilakukan secara eksperimen berupa uji ekstrak berupa pembuatan ekstrak spons Ptilocaulis marquezii dengan maserasi serta evaporasi dengan rotary vacuum evaporator pada suhu 40°C hingga ekstrak terbentuk. Dilakukan pengujian dengan metode Difusi cakram atau Kirby-Bauer test. Pengujian fitokimia guna mengetahui kandungan senyawa aktif. Hasil yang diperoleh didapatkan ekstrak dengan konsentrasi 40% yang memiliki kemampuan sedang. Pada uji fitokimia mengandung alkoloid dan triptenoid. Ekstrak spons Ptilocaulis marquezii pada konsentrasi 40% dengan zona hambat sebesar 9.5 mm dalam kategori sedang dan pada konsentrasi lainnya yaitu 10%, 20%, 60% dan 80% berkategori lemah. Senyawa alkaloid menghambat pertumbuhan Escherichia Coli dengan merusak susunan peptidoglycan. Pada senyawa triterpenoid merusak membran plasma pada bakteri Escherichia coli. Knowing the potential bioactivity of the compounds contained and knowing the test of the extract of the Ptilocaulis marquezii sponge of Eschercia coli bacteria. The research was carried out experimentally in the form of extract testing in the form of making Ptilocaulis marquezii sponge extract by maceration and evaporation with a rotary vacuum evaporator at a temperature of 40°C until the extract was formed. The test was carried out using the disc diffusion method or the Kirby-Bauer test. Phytochemical testing to determine the content of active compounds. The results obtained were extracts with a concentration of 40% which had moderate abilities. The phytochemical test contains alkaloids and triptenoids. Ptilocaulis marquezii sponge extract at a concentration of 40% with an inhibition zone of 9.5 mm in the medium category and at other concentrations of 10%, 20%, 60% and 80% in the weak category. Alkaloids inhibit the growth of Escherichia Coli by destroying the peptidoglycan structure. The triterpenoid compounds damage the plasma membrane of Escherichia coli bacteria.
This research aims to find out the density and diversity of seagrass at Bama Beach, Baluran National Park, which was conducted in March 2019. In this study, seagrass was identified by quadrant transect method, with water quality measurement and association organisms were also measured. Three types of seagrass have been identified; Cymodocea rotundata, Enhalus acoroides, and Halodule universis. Among them, Cymodocea rotundata was found to be the most abundant seagrass species on Bama Beach with a density was up to 60%. The percentage of seagrass closure reached 35-56%. The water quality of the seagrass ecosystem showed optimal conditions for seagrass metabolism. Sea cucumber (Holothuria sp.) was found as an associated organism found in transects. In conclusion, the seagrass condition on Bama Beach showed high density and varied conditions.
ABSTRACT Introduction. The purpose of this study was to determine the ability of the students of the Al-Muhsinin Islamic Boarding School in Koto Petai Village to access, evaluate, and use information on the kitab kuning content with literacy standards of the International Federation of Library Association and Institutions (IFLA).Data Collection Method. To collect precise and accurate data, the researcher used qualitative research. The method of determining the subject was done by purposive sampling, the data collection methods used were the interview method, the observation method and the documentation method.Analysis Data. Data analysis was used, namely data reduction, data presentation, and drawing conclusions.Results and Discussions. The results of this study are: The ability of the Santri at the Al-Muhsinin Islamic Boarding School of the Koto Petai Village in Accessing Information on the Kitab Kuning is quite good, this can be seen from the information obtained from discussions with teachers and clerics and also with friends. and chosen to be applicable in everyday life. The ability of the Santri at the Al-Muhsinin Islamic Boarding School of Koto Petai Village in Evaluating Information on the Kitab Kuning is quite good, it can be seen that to get clear information each person has different versions, some select and sort the information first and some are direct use the information. It depends on each person how to get the information. The ability of the Santri at Al-Muhsinin Koto Petai Islamic Boarding School in using the Kitab Kuning information is not good. It can be seen that in using the information obtained by the informants they have not applied or applied it and in communicating information to other parties, the informants also rarely communicate the information they know to other parties. Keywords: Information Literacy, Kitab Kuning, Santri
This study aims to find the value of the fastness test of the natural dye of lindur leaves (Bruguiera gymnorrhiza). This research was conducted in June-November 2020. This research used descriptive and experimental methods (Experiments). The samples used were cotton, rayon, and sateen fabrics. The results showed that the lindur leaf fixator (Bruguiera gymnorrhiza) was able to dye fabric fibers. The results of the color fastness value in hot water are influenced by the difference in ΔE (colorfastness), cotton fabrics have a range of values between the medium category (5.1-5.94), the medium-large category rayon cloth (5.09-9.06 ), medium category satin (3.65-4.35). The results of the color fastness value in cold water are influenced by the difference in ΔE (colorfastness), cotton fabrics have a range of values between the small and medium categories (1.96-3.68), rayon fabrics in the small category (2.83-3.9 ), the small category of satin fabrics (1.54-2.76).
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