Abstrak Penelitian kupu-kupu di Sumatra Barat masih belum banyak dilakukan. Khususnya pada kawasan Tempat Pembuangan Akhir (TPA) Air Dingin yang berfungsi sebagai tempat timbulan sampah 400-450 ton/hari. Sehingga penelitian ini perlu dilakukan untuk mengetahui jenis kupu-kupu apa saja yang ada di kawasan ini mengingat semakin luasnya area TPA yang akan merubah lingkungan disekitarnya menjadi tempat timbulan sampah. Penelitian dilakukan menggunakan metode survey dengan jala serangga (insect net). Pengoleksian kupu-kupu dilakukan 2 periode (2x6=12 hari) pada bulan April-Juni 2019 pada saat cuaca cerah dari pukul 09.00 – 12.00 WIB. Semua kupu-kupu dikoleksi dengan jarak ± 5 m dari kolektor. Hasil penelitian didapatkan 5 famili, 14 genera, 22 spesies dan 218 individu. Kata Kunci: Kupu-Kupu (Rhopalocera), Lepidoptera, TPA Air Dingin Abstract Butterflies research in West Sumatra is still not much done. Especially in the Final Disposal Site (FDS) in Air Dingin area which functions as a place for waste generation of 400-450 tonnes/day. So this research needs to be done to find out what types of butterflies exist in this area considering that the increasingly large landfill area will change the surrounding environment into a place for waste generation. The research was conducted using a survey method with insect nets. Butterfly collection was carried out in 2 periods (2x6=12 days) in April-June 2019 when the weather was sunny from 09.00 – 12.00 of Western Indonesian Time. All butterflies were collected within ± 5 m from the collector. The results obtained 5 families, 14 genera, 22 species and 218 individuals. Keywords: Butterfly (Rhopalocera), Lepidoptera, TPA Air Dingin
This study aims to build a data mining application that is able to classify products marketed by companies to find out the products needed for the following month. This application groups non-hierarchical data which is designed to divide existing data into two or more groups so that the same data can be entered into other groups. In this study, the data used is data from PT Cipta Niaga Semesta Mayora Group and the method used is clustering. Data mining is computer-based data processing to gain knowledge. By using data mining, processing sales data at PT Cipta Niaga Semesta Mayora Group becomes easier and gains useful knowledge to take steps to face competition. For this reason, the company's management foresight is needed in choosing technology to help work so that the costs incurred are proportional to the company's opinion. The development of this framework is completed through several stages starting with the first data collection, followed by the second stage of application design, the third stage of the four stages of program development and program implementation. Using data mining applications can help PT Cipta Niaga Semesta categorize the products it sells so that the company can predict the product inventory needed for the following month. So with the new information the company can find out what products customers want.
Pencemaran logam berat terhadap lingkungan berasal dari aktivitas manusia di laut maupun di darat. Hal ini dapat menimbulkan pengaruh negatif terhadap lingkungan perairan terutama organisme yang hidup di dalamnya dan manusia yang mengkonsumsi organisme tercemar. Penelitian ini bertujuan mengetahui kandungan logam berat Cd, Cu dan Pb pada biota air permukaan dan sedimen permukaan di perairan Kota Padang. Penelitian ini dilaksanakan pada Bulan Mei 2018. Lokasi sampling ditetapkan pada 4 muara sungai besar di Kota Padang. Kandungan logam Pb, Cu dan Cd dianalisis menggunakan AAS (Atomic Absorbtion Spectrophotometry). Kandungan logam Cd pada air berkisar antara 0.0167-0.0374 mg/l, sedangkan kandungan Cd pada sedimen berkisar antara 0.241-0.653 (mg/kg). Nilai Cd pada air permukaan diatas nilai baku mutu air laut untuk biota hidup. Kandungan logam Cu pada air berkisar antara 0.0155-0.0365 mg/l, sedangkan kandungan Cd pada sedimen berkisar antara 0.128-0.424 (mg/kg). Kandungan logam Pb pada air berkisar antara 0.0155-0.0378 mg/l, sedangkan kandungan Pb pada sedimen berkisar antara 0.0265-0.225 (mg/kg). Secara umum, kandungan logam berat pada sedimen permukaan nilainya lebih tinggi dari pada kandungan logam berat di air permukaan karena mudah terakumulasi dan terendapkan pada sedimen permukaan.
The study of butterfly in the in Air Dingin Landfills needs to be carried out to find out what types of butterflies are in this area and how their diversity is, given the increasing area of Landfills that will change the surrounding environment into a place of rubbish heap. The study was conducted by implementing survey method with insect net. The collection of butterflies was carried out in 2 periods (2x6 = 12 days) in April-June 2019 during sunny weather from 09:00 – 12:00 of Western Indonesian Time. All butterflies were collected at ±5 m distance from the collector. The data was analysed to calculate abundance, relative abundance, frequency of the presence of butterfly, and determine diversity was conducted by using the Shannon-Wiener Index and Evenness index. The results obtained 5 families, 14 genera, 22 species, and 220 individuals consisting of 122 males and 98 females. The diversity index value obtained was 2.27 and categorised as the medium category it is mostly because, as assumed, the environmental conditions of the Air Dingin Landfills were still in good condition.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.