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All Journal Al-Ta'lim Journal Of Aquaculture Development and Environment
Pratiwi Restu Murti, Pratiwi Restu
Prodi Pendidikan Fisika, Jurusan Pendidikan Matematika dan Ilmu Pengetahuan Alam, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Sebelas Maret, Surakarta, 57126, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Education Environmental Science

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Species Invasion of Jaguar Cichlid (Parachromis managuensis) in Nyunyur Reservoir Dadiono, Muh Sulaiman; Murti, Pratiwi Restu; Andayani, Sri
Journal of Aquaculture Development and Environment Vol 7, No 1 (2024): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v7i1.8595

Abstract

Foreign fish, especially predatory fish in Indonesian public waters, are very dangerous for the local ecosystem, foreign predatory fish can become the main predators and can cause an imbalance in the ecosystem. From this study we report the catch of foreign predatory fish from the jaguar cichlid species (Parachromis managuensis) from Central American waters caught in Nyunyur Reservoir, Blitar Regency, East Java. The method in this study used a desk study and jaguar cichlid species identification method using morphological observations based on Kullander and Hartel (1997). This catch is a warning and an important note for the relevant agencies regarding the invasion of the jaguar cichlid species in the Nyunyur Reservoir as an initial step in monitoring aquatic ecosystems.
Parachromis managuensis : The Danger of Foreign Fish Species in Penjalin Reservoirs Dadiono, Muh Sulaiman; Murti, Pratiwi Restu
Journal of Aquaculture Development and Environment Vol 6, No 2 (2023): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v6i2.7927

Abstract

Foreign predatory fish species in Indonesia have the potential to threaten the local ecosystem by becoming the main predators that disrupt the balance of the food chain in local waters. Through this research, we want to report the invasion of the species Parachromis managuensis, which originates from Central American waters. This fish species has been found in significant numbers and sizes in the waters of the Penjalin reservoir. In this study, a morphological approach was used to identify the Parachromis managuensis species. The capture of this species was recorded as the first step in efforts to monitor the reservoir water ecosystem in Brebes so that it remains balanced. Results and discussion, including a description of the morphology of the Parachromis managuensis species that have been caught, can be found in this research report.
The Characteristics of the Nature of Science (NOS)-based Instruments in Newton Law Using Rasch Model Analysis Murti, Pratiwi Restu; Aminah, Nonoh Siti; Harjana, Harjana
AT-TA'LIM Vol 26, No 3 (2019)
Publisher : Institut Agama Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1194.533 KB) | DOI: 10.15548/jt.v26i3.493

Abstract

The objective of this research is to find out the characteristic of each test item with NOS-based instruments which is analysed based on validity and reliability level using Rasch model (RM). A test using NOS-based instruments was used to collect the data. This research is categorized as descriptive with quantitative using statistic from RM through QUEST program. There are 104 students participated as the subject of this research. The result, which is based on validity of each test item using RM analysis, shows that 25 test items are considered fit or accepted. Based on the estimate of item reliability, NOS-based instrument has reliability coefficiency at 0.96. Based on difficulty items 2 test items declared not good, namely test item number 19 and item test number 4. Based on the analysis according to Classic Test Theory of RM, the NOS instrument can be used to measure senior high school students' science literacy on Newton Law.
Co-Authors Anif Jamaluddin Edy Wiyono Harjana Harjana Muh. Sulaiman Dadiono Nonoh Siti Aminah Sri Andayani