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heti herawati
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Pertumbuhan dan Kelangsungan Hidup Benih Ikan Gabus (Channa striata) yang Diberi Pakan Komersial dan Bekicot (Achatina fulica) Iskandar Iskandar; Heti Herawati; Kiki Haetami; Ferri Satya Darmawan
Akuatika Indonesia Vol 8, No 1 (2023): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jaki.v8i1.45015

Abstract

Riset ini bertujuan untuk mengetahui tingkat pertumbuhan dan kelangsungan hidup benih ikan gabus (Channa striata) yang diberi pakan komersial dan bekicot (Achatina fulica). Metode yang digunakan dalam riset ini adalah metode eksperimental dengan menggunakan rancangan acak lengkap (RAL), yang terdiri dari tiga perlakuan dan lima kali ulangan. Perlakuan yang diberikan adalah pemberian pakan komersial (A), pemberian 50% pakan bekicot dan 50% pakan komersial (B), pemberian pakan bekicot (Achatina fulica) (C). Benih ikan uji yang digunakan adalah benih ikan gabus dengan ukuran relatif sama yaitu berkisar 3 - 4cm yang di dapat dari pembudidaya di kota Cilacap, Jawa Tengah. Benih yang dipersiapkan sebanyak 25 ekor/akuarium. Masing-masing wadah berukuran 40 x 25 x 28 cm diisi air yang bersumber dari sumur. Jumlah pakan yang diberikan disesuaikan dengan feeding rate (FR) yaitu sebesar 5% dari biomassa ikan yang dilakukan setiap 3 kali sehari dan disesuaikan dengan pertumbuhannya setiap sepuluh hari sekali. Kualitas air selama pemeliharaan (40 hari) diamati setiap tujuh hari sekali, sedangkan kelangsungan hidup, pertumbuhan bobot mutlak, laju pertumbuhan harian dan rasio konversi pakan diamati setiap sepuluhhari sekali. Hasil riset yang menunjukkan laju pertumbuhan paling baik yaitu perlakuan C (menggunakan pakan bekicot) memiliki pertumbuhan bobot mutlak sebesar 3,55 g, LPH sebesar 1,5% dan FCR sebesar 2,406. Nilai SR yang paling baik terdapat pada perlakuan A (menggunakan pakan komersial) yaitu sebesar 80%.
DISTRIBUSI KAWASAN MANGROVE DI PULAU POTO KABUPATEN BINTAN MELALUI PENGINDERAAN JAUH Mochamad Candra Wirawan Arief; Iwang Gumilar; Zahidah; Heti Herawati; Perdana Putra Kelana; Sri Een Hartatik
Bioma Vol. 19 No. 2 (2023): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma19(2).4

Abstract

Mangrove is a unique vegetation type growing along the coastline and estuarine in tropical and subtropical countries. Mangroves in Indonesia are distributed in all major islands and small islands from Aceh on westside stretched to Papua on the east. This study is to monitor the mangrove area in Poto island a small island part of Kabupaten Bintan, Province of Riau Kepulauan. The difference in spatial resolution of remote sensing data Sentinel 2A and Pleiades were used to classify the land use including the mangrove area. The supervised classification by maximum likelihood classification showed the high-resolution image using Pleiades has higher accuracy for mangroves 81.99% and overall accuracy 90% (kappa 0.86) compared to Sentinel 2A for mangrove 72,34% and overall accuracy 80% (kappa 0.73). The mangrove area approximately 257 ha is strip-lining along the coastline with the largest mangrove area located on the southside of the island. Further research is to identify the mangroves’ formation and the serial condition of mangroves on the different times.
Identifikasi Fitoplankton Di Waduk Jatigede, Kabupaten Sumedang, Provinsi Jawa Barat Fis'ari Damayanti; Heti Herawati; Junianto Junianto; Zahidah Hasan
Vol 16 No 2 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i2.2188

Abstract

THE EFFECT OF TILAPIA FISH SKIN COLLAGEN ADDITION LEVEL ON THE PHYSICAL-CHEMICAL QUALITY OF BODY CREAM Adriana Putri Pramesti; Junianto Junianto; Heti Herawati; Iis Rostini
Vol 15 No 1 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i1.1332

Abstract

An alternate raw material for the production of collagen is the skin of tilapia fish, which is a fishery waste. As a naturally occurring humectant that helps to keep skin moisture, collagen is frequently found in cosmetic goods like body cream. The goal of this study is to ascertain the ideal amount of tilapia skin collagen to add in order to produce body cream with the best physico-chemical quality. This work employed an experimental approach using a complete randomized design (CRD) that included five replications and four treatments of increasing the collagen concentration of tilapia skin: 0%, 3%, 3.5%, and 4%. Cream pH, cream homogeneity, cream spreadability, and cream wetness were among the parameters measured. While the cream's pH, spreadability, and moisture were statistically parametrically assessed using analysis of variance (ANOVA), the homogeneity of the cream was analyzed descriptively and compared. The study's findings indicated that 4% was the ideal amount of tilapia skin collagen to add to the cream. Cream containing 4% collagen from tilapia fish skin has uniform properties, a pH of 6.08, a spreadability of 5.88 cm, and the greatest moisture percentage of 68.7%.
PENENTUAN STATUS KUALITAS AIR SITU CISANTI DENGAN METODE STORET Ronald Krina Rizki Gunawan; Heti Herawati; Asep Sahidin; Zahidah Zahidah
Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1585

Abstract

Situ Cisanti has the main function which is, being utilized by the surrounding community for various activities such as plantations, fisheries and tourism activities. The many activities in Situ Cisanti have an impact on the decline in water quality in the waters of Situ Cisanti. The water quality in Situ Cisanti must meet water quality standards because Situ Cisanti is the zero point of the Citarum River so that it has a direct impact on fish farming activities and drinking water sources along the Citarum River. Determination of water quality status in a body of water can be done by several methods, one of which is the STORET Method. Through the STORET Method, the water quality status of Situ Cisanti can be determined. The method used is the survey method. Determination of sampling points is determined based on considerations of the zoning of the water body consisting of inlets, the middle of the waters and outlets. Data analysis is carried out by comparing it with water quality standards and scoring it. Based on the results, the water quality status of Situ Cisanti is categorized as "lightly to moderately polluted" with a score between -10 to -11 for class 1 water quality standards and is categorized as lightly polluted with a score of -10 for class 2 quality standards. So it can be concluded that it does not meet the quality standards set by Government Regulation Number 22 of 2021 for raw water for drinking water and fisheries activities. 
Co-Authors aditya bayu prianto Adriana Putri Pramesti Asep Sahidin Asep Sahidin Ferri Satya Darmawan Fis'ari Damayanti Fitri Awaliyah Ibnu Faizal Iis Rostini Ine Maulina Irfan Zidni Iskandar Iskandar Iskandar Iskandar Iwang Gumilar Izza Mahdiana Izza Mahdiana Apriliani JUNIANTO JUNIANTO Kiki Haetami Lantun Paradhita Dewanti Noir Primadona Purba Perdana Putra Kelana prima luna R. Mochamad Candra Wirawan Arief Rini Yulianti Ronald Krina Rizki Gunawan Sri Een Hartatik Sri Widowati Sri Widowati Yuli Andriani Zahidah Zahidah Hasan Zahidah Zahidah Zahidah Zahidah