The purpose of this research is to analyze the development strategy of seaweed cultivation to increase seaweed production in the coastal area of Suppa District, Pinrang Regency. This research was conducted in the coastal area of Supa District, Pinrang Regency from May to December 2021. Data collection methods include observations, interviews and documents. The data analysis used is a SWOT analysis. The results showed that the main factors for developing seaweed cultivation business strategies to increase production in the coastal areas of Suppa District, Pinrang Regency, are a) development of aquaculture, b) providing training in stages, c) providing consultations, d) optimizing existing production capacity, e) Expanding planting areas, f) optimizing production, g) increasing funding, h) expanding and maintaining marketing networks.
A Suckermouth catfish is one type of fish that is considered a pest in the waters because it is invasive (invasive species). In addition to being a pest species, Suckermouth catfish is also known as one type of fish species that has a fairly high heavy metal content in some waters that are classified as polluted waters. This research was conducted with the aim of knowing the content of chemical elements contained in Suckermouth catfish. Based on the results of XRF (X-Ray Fluoroscence) analysis, it shows that there are 14 chemical elements found in the organs of the broom fish, including Sulfur (S), Potassium (K), Calcium (Ca), Phosphorus (F), Silicon (Si). ), Chlorine (Cl), Iron (Fe), Zinc (Zn), Niobium (Nb), Molybdenum (Mo), Antimony (Sb), Ruthenium (Ru), Indium (In), Tin (Sn) and Titanium (Ti ). Meanwhile, based on the results of XRD (X-Ray Diffraction) analysis on the scales of the Suckermouth catfish, the micrograph results obtained in the form of an amorphous which is indicated by the presence of a hump on the graph consisting of 10% Cadmium Mercury, 81% Phosphorus and 9% Calcium, while in the bone Suckermouth catfish consists of 40% Calcium Hydride, 59% Akermanite, and 0.96% Cadmium.
Composite restoration is frequently found on teeth before doing any bleaching treatment. Hydrogen peroxide is a bleaching agent which enable transition to one of the composite physical properties. The aim of this research was to observe the difference of surface hardness between methacrylate and silorane based composite resin after application of 40% hydrogen peroxide. This true experiment involved 36 specimens from two different disc-shaped methacrylate and silorane based composite resins, with 18 specimens methacrylate and 18 silorane. Every specimen groups were immersed in artificial saliva solution and divided into two groups; the first group consisted of 9 specimens of control which were tested directly using microvickers hardness tester and another group consisted of 9 specimens which had been added by 40% hydrogen peroxide for hardness test. The result showed the different surface hardness average value of metachrylate and silorane based composite resin after application of 40% hydrogen peroxide. The surface hardness of methacrylate and silorane based composite resins was 41.8 VHN and 33.7 VHN (p>0.05) with t-test, respectively. From this study concluded that there was no significant difference between methacrylate and silorane based composite resins after 40% hydrogen peroxide application.
Penentuan lokasi budidaya rumput laut menggunakan aplikasi sistem informasi geografis di wilayah pesisir Kecamatan Suppa. Penelitian ini dilaksanakan berkisar sepuluh bulan pada tahun 2020. Tujuan penelitian ini adalah untuk menentukan kesesuain lahan pada budidaya rumput laut dengan menggunakan aplikasi ‘Sistem Informasi Geografis’. Penelitian ini memiliki karakteristik lahan sebagai penyusun kualitas lahan untuk budidaya rumput laut yaitu: tinggi gelombang, kecepatan arus, pasang surut, kedalaman, kekeruhan, suhu, salinitas, pH, nitrat dan fosfat. Penelitian ini memiliki tujuan sebagai bahan informasi dalam usaha perbaikan kualitas dan rencana pengelolaan ekosistem pesisir secara terpadu dan berkelanjutan terhadap pengambil kebijakan dalam hal ini pemerintah setempat serta memberikan gambaran tentang pentingnya budidaya rumput laut di wilayah pesisir. Adapun hasil analisis data spasial lokasi kesesuaian lahan budidaya rumput laut yang memiliki golongan sesuai ±996,63Hektar dan tidak sesuai ±361,25 Hektar oleh sebab itu sangat baik dilakukan budidaya rumput laut dengan luas wilayah sangat tinggi memungkinkan dilakukan budidaya rumput laut berbasis lingkungan. Kata kunci: kesesuaian, lahan, budidaya, rumput laut
The suckermouth catfish is one type of fish species which is an invasive species. The occurrence of suckermouth catfish population explosion in the waters of Lake Sidenreng had an impact on the sustainability of marine biodiversity as well as an impact on the production of fishermen's catch. This study aims to determine the effect of suckermouth catfish population explosion on the effectiveness of fish filling and the sustainability status of Sidenreng Lake water management. This research was conducted for three months, from June to August 2020 in Teteaji Village and Wette'e Village, Sidenreng Rappang Regency. This study aims to determine the effect of fishing effectiveness and the status of the sustainability of the management of Lake Sidenreng. The effect of population explosion on the effectiveness of fishing was analyzed descriptively based on a comparison of the production of moderate catches on the sustainability status of Sidenreng Lake management using the RAPFISH-MDS (Rapid Appraisal for Fisheries-Multidimensional Scaling) method. Based on the analysis of the suckermouth catfish population explosion in Sidenreng Lake, it has an impact on capture fisheries activities in Lake Sidenreng, namely on fishing gear, fishing operations and production of catches. The status of the sustainability of Sidenreng Lake management based on the RAPFISH MDS sustainability analysis from all dimensional aspects (ecological, economic, social and technological dimensions) shows that the sustainability status of Lake Sidenreng is 51.12 including the fairly sustainable category.
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