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All Journal Jurnal Biologi Tropis
Samsul Fajri
Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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The Influence of Different Media on The Physiological Response of Nila Fish (Oreochormis nilaticus) M. Ali Akbar; Sri Jayanthi; Samsul Fajri; Khairunnisa; Arini Shinta Zahara; Muliani Tiana Sari; Mardiah
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.6135

Abstract

Nila fish (Oreochromis niloticus) is one of the leading commodities in freshwater fish cultivation in Indonesia is a freshwater fish commonly found in Indonesian waters. Media will be the main obstacle in cultivating tilapia on idle land (land that cannot be operated). Different water media influence the physiological responses of tilapia fish. The purpose of this activity is to determine the effect of differences in freshwater, brackish water and sea water media on the physiological response of tilapia fish. The parameters of this research are differences in water media, physical factors of the media, survival of tilapia fish, respiration rate of tilapia fish, mobility of tilapia fish, weight of tilapia fish and flexibility of tilapia scales. This study used quantitative methods with a completely randomized design (RAL). The collection technique makes observations. Data were analyzed using ANOVA with a significance level of 5%. The results of this study show that differences in the aquatic environment significantly affect the physiological response of tilapia. Where in sea water the fish mortality rate is quite high compared to fresh water and brackish water.
Insecta Diversity on Peudawa Coast, East Aceh District Samsul Fajri; Sri Jayanthi; Khairunnisa Khairunnisa; Arini Shinta Zahara; Mardiah Mardiah
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.6178

Abstract

Peudawa Beach is one of the beaches in East Aceh or more precisely East Aceh Regency. Insects are  part of the coastal ecosystem. Insects are found in almost all ecosystems. Information on the insect diversity of the banks of Peudawa  has not been thoroughly studied. The purpose of this study is to see the diversity of insect species in Peudawa beach. The method used in this study is an exploratory descriptive research method. In this study, three techniques are used in data collection  technique, namely well drop technique, insect net technique and manual sorting technique. The Shannon-Wiever diversity index (Hand#039;) is used in the data analysis technique. The results of this study show that the insect diversity of Peudawa coast, East Aceh District belongs to the moderate diversity index category, which is influenced by the physical factors of the surrounding environment. The result was 22 insect species in 3 research  stations.
Co-Authors Arini Shinta Zahara Khairunnisa Khairunnisa Khairunnisa M. Ali Akbar Mardiah Mardiah Mardiah Muliani Tiana Sari Sri Jayanthi