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Analysis of heavy metal content of cadmium (Cd) in milkfish (Chanos chanos Forsk) from milkfish farms in Bima Bay Bukhari Muslim; Khairuddin Khairuddin; M. Yamin; Kusmiyati Kusmiyati
Jurnal Pijar Mipa Vol. 17 No. 1 (2022): January 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

The research aims to analysis of the content of heavy metals cadmium (Cd) in milkfish (Chanos chanos Forsk) from the encroachment of Bima bay at year 2020. The benefit of this study is to provide information related to the content of heavy metals cadmium (Cd) in milkfish (Chanos chanos Forsk) and protect the community or consumers from heavy metal contaminants. The research was conducted in Bima Bay, namely in 2 research locations, namely Malay village, Bima City, and Palibelo, Bima Regency. This type of research is descriptive explorative researchÃ¢â¬âsampling techniques using purposive sampling. Samples of milkfish were taken directly on the pond area of 3 heads in each location. Then the sample is put in the sample box that has previously been washed clean. The research samples were then analyzed of the content of heavy metal cadmium (Cd) using Atomic Absorption Spectrophotometer tool. The results showed that at the palibelo research site, Bima Regency in PB 1 samples contains cadmium (Cd) of 30 ppm, PB 2 samples of 40 ppm, and PB 3 samples of 10 ppm. Furthermore, at the location of Malay village, Bima City on KM 1 sample of 30 ppm, on KM 2 sample of 40 ppm, and KM 3 sample of 20 ppm. The content of heavy metal cadmium (Cd) in milkfish (Chanos chanos forsk) from Bima Bay exceeds the threshold by BPOM Regulation No. 5 of 2018 is 0.1 ppm. The presence of heavy metal content cadmium (Cd) that exceeds this threshold indicates that the waters of Bima Bay have been contaminated by heavy metals Cadmium (Cd).

The Preference of Trigona sp for pollen various plant species in Kawasan Rumah Pangan Lestari Wardatul Uyun; Karnan Karnan; M. Yamin
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3061

Kawasan Rumah Pangan Lesatri (KRPL) is one of the efforts that can be done to manage food security in the face of climate change. The management of the potential contained in KRPL is by applying Trigona sp honey bee cultivation which is integrated with agricultural land. The success of honey bee cultivation is highly dependent on the availability of feed in the environment. This study aims to determine the preferences of pollen collected by Trigona sp at KRPL. This type of research is a qualitative research with Chi square analysis. The research sample was bee pollen contained in 14 stup. The research was conducted from July-November. Data collection was carried out in October and November by making observations at KRPL with an area of 784 meters then making plant reference preparations that have the potential to be Trigona sp pollen feed in KRPL and comparing reference preparations with pollen preparations in Trigona sp stup. The results of the research at KRPL showed that there were 20 types of plant pollen in KRPL. The results of the descriptive analysis with chi square showed that there was a preference for the type of pollen that was fed to Trigona sp bees with a value of x2h > x2t so that H0 was rejected and Ha was accepted.

Pemanfaatan Budidaya Lebah Madu Klanceng (Trigona sp) Terintegrasi dalam Kawasan Rumah Pangan Lestari (KRPL) Sebagai Laboratorium Alami Pembelajaran Biologi Karnan Karnan; Abdul Syukur; Khairuddin Khairuddin; M. Yamin
Jurnal Ilmiah Profesi Pendidikan Vol. 6 No. 3 (2021): November
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v6i3.293

Kegiatan budidaya lebah klanceng terintegrasi dalam Kawasan Rumah Pangan Lestari (KRPL) telah dilakukan sebagai salah satu upaya strategis dalam mitigasi dampak buruk perubahan iklim global. Secara lebih khusus, naskah ini mendeskripsikan jenis tanaman sumber pakan lebah yang disukai lebah dalam kawasan rumah pangan lestari, perkembangan koloni, dan produktivitas lebah, serta pemanfaatannya sebagai sumber belajar untuk pembelajaran biologi dan bidang terkait lainnya. Budidaya lebah klanceng yang terintegrasi dalam KRPL dilakukan untuk memperoleh data yang diperlukan. Hasil penelitian ini menunjukkan bahwa: a) dari sejumlah bunga yang tersedia, bunga matahari (Helianthus annuus L), tekokak (Solanum torvum), pepaya (Carica papaya L), belimbing (Averrhoa carambola L) merupakan sumber pakan pavorit bagi lebah klanceng (Trigona sp.) yang dibudidaya dalam Kawasan Rumah Pangan Lestari (KRPL); b) perkembangan koloni lebah Trigona sp yang dibudidaya di Kawasan Rumah Pangan Lestari (KRPL) sangat lambat dikarenakan ketersediaan pakan yang sangat terbatas; dan c) Kegiatan budidaya lebah klanceng di Kawasan Rumah Pangan Lesarai (KRPL) dapat memberikan manfaat tidak hanya bagi masyarakat pengelolanya, tetapi juga menjadi laboratorium alami yang sangat bermanfaat bagi pembelajar biologi, misalnya mahasiswa, dalam mempelajari berbagai hal yang muncul dalam budidaya ini.

Ethnoscience Studies in Songket Sasak Cloth Motifs: Prospective Science Teacher Perceptions Agus Muliadi; Suhirman Suhirman; M. Khairul Wazni; M. Yamin; Yusran Khery
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2414

The aims of this study were to explore the perceptions of prospective science teachers towards ethnoscience studies in the songket cloth motif of the sasak tribe. This exploratory research conducted in three education study programs namely Biology, Chemistry, and Physics Education with 53 prospective science teachers involved as research subject. Closed questionnaire with likert scale and expertly validated applied for data collection. The data were analyzed by quantitative descriptive statistics, Anova test and t-test inferential statistics. The results showed that (1) perception of prospective science teachers has an average score in the "Good" category in terms of gender, regional origin, and study program; (2) there were no significant differences in the perceptions in male and female prospective science teacher based on t-test significance value of 0,455 > 0,05; (3) there were no significant difference in prospective science teacherâ€™s perception refer to origin (native Lombok and non-native) based on t test significance value of 0,466 > 0,05; (4) there were no significant difference in the perceptionÂ of prospective science teachers in the biology, chemistry, and physics education study program based on Anova's significance valueÂ of 0,423 > 0,05.

Pemanfaatan Budidaya Lebah Madu Klanceng (Trigona sp) Terintegrasi dalam Kawasan Rumah Pangan Lestari (KRPL) Sebagai Laboratorium Alami Pembelajaran Biologi Karnan Karnan; Abdul Syukur; Khairuddin Khairuddin; M. Yamin
Jurnal Ilmiah Profesi Pendidikan Vol. 6 No. 3 (2021): November
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v6i3.293

Kegiatan budidaya lebah klanceng terintegrasi dalam Kawasan Rumah Pangan Lestari (KRPL) telah dilakukan sebagai salah satu upaya strategis dalam mitigasi dampak buruk perubahan iklim global. Secara lebih khusus, naskah ini mendeskripsikan jenis tanaman sumber pakan lebah yang disukai lebah dalam kawasan rumah pangan lestari, perkembangan koloni, dan produktivitas lebah, serta pemanfaatannya sebagai sumber belajar untuk pembelajaran biologi dan bidang terkait lainnya. Budidaya lebah klanceng yang terintegrasi dalam KRPL dilakukan untuk memperoleh data yang diperlukan. Hasil penelitian ini menunjukkan bahwa: a) dari sejumlah bunga yang tersedia, bunga matahari (Helianthus annuus L), tekokak (Solanum torvum), pepaya (Carica papaya L), belimbing (Averrhoa carambola L) merupakan sumber pakan pavorit bagi lebah klanceng (Trigona sp.) yang dibudidaya dalam Kawasan Rumah Pangan Lestari (KRPL); b) perkembangan koloni lebah Trigona sp yang dibudidaya di Kawasan Rumah Pangan Lestari (KRPL) sangat lambat dikarenakan ketersediaan pakan yang sangat terbatas; dan c) Kegiatan budidaya lebah klanceng di Kawasan Rumah Pangan Lesarai (KRPL) dapat memberikan manfaat tidak hanya bagi masyarakat pengelolanya, tetapi juga menjadi laboratorium alami yang sangat bermanfaat bagi pembelajar biologi, misalnya mahasiswa, dalam mempelajari berbagai hal yang muncul dalam budidaya ini.

Analysis of Mercury (Hg) Content in Tilapia Fish (Oreochromis mossambicus) from Rawa Taliwang Lake to Enrich the Course Materials on Ecotoxicology Irna Mulyani; M. Yamin; Khairuddin Khairuddin
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3659

Rawa Taliwang Lake is one of the lakes in West Sumbawa Regency which is surrounded by mining. Mining waste in the form of mercury can accumulate in tilapia fish which are consumed by many people around the lake consumption of tilapia fish with mercury content can endanger health. The purpose of this study was to determine the level of mercury in tilapia fish from Rawa Taliwang Lake. This research was conducted for six months, starting from September 2022 to March 2023. Sampling was carried out using a purposive sampling method using 2 station points. The samples used were 3 fish taken from station 1 and station 2. Sample analysis was carried out in the analytical laboratory and environmental of West Nusa Tenggara using AAS (atomic absorption spectrophotometry). The part that was analyzed was the tilapia fish meat. The results of the analysis showed that the mercury content in tilapia fish from Rawa Taliwang Lake was 0.73 mg/kg which exceeded the Hg contamination limit set by the Food and Drug Supervisory Agency regulation no 9 of 2022. So tilapia fish from Rawa Taliwang Lake was unfit for consumption. The results of this study can be used as additional material in the learning process of ecotoxicology

Ethnoscience Studies in Making of Bale Adat: Literature Review M. Khairul Wazni; Agus Muliadi; M. Yamin
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3958

This study aims to elaborate on indigenous science contained in the use of materials for making bale adat based on scientific concepts. This study is a literature study with data sources from previous research articles that have topics related to ethnoscience learning, indigenous science in the tradition of materials for making bale adat, and the potential for integration of indigenous science in learning natural sciences. The procedure in literature study research is carried out in stages, namely collecting library data, reading, taking notes, studying, collecting concepts or manuscripts, then carrying out elaboration and explanation of the collected data/text. The study results show that (1) bale adat typical of the Sasak tribe consists of several types, namely bale beleq bencingah, bale bonter, bale tani, bale jajar, bale tajuk, berugag (sekepat-sekenam); (2) Indigenous science in the materials for making bale adat, namely: a) the foundation for bale adat is made from a mixture of clay, tree sap, straw ash or rice husk, and buffalo dung mixed with water, b) floor of bale adat periodically smeared with buffalo dung mixed with water to reduce humidity, c) the walls of bale adat or room covering are made of woven bamboo slats known as the local term pager, d) woven pagers are made of ampel bamboo with various motifs and sometimes to beautify the pager , the material used is spotted bamboo which has colorful bark, d) teken, ampak, lampen, and langkar used in the bale adat are made from the part of the tree that is believed to be the strongest or known locally as kayu galih, e) roof made of weeds leaves woven into bamboo frame clips which are split into small pieces; (3) indigenous science in the materials for making bale adat can be integrated into the school science learning concept, namely in the material: a) material on network structure and function, as well as technology inspired by plant structure , b) material properties and utilization of materials in everyday life.

Measurement of Heavy Metal Mercury (Hg) Content in The Swamp Eel (Monopterusalbus) as a Bioindicator from Lake Rawa Taliwang Dinda Noviantika; Khairuddin Khairuddin; M. Yamin
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.7324

The presence of heavy metals in Lake Rawa Taliwang can originate from various activities in the upstream river, around settlements, and within the lake itself. Mercury (Hg) is a highly toxic heavy metal due to its neurotoxic nature, affecting both organisms and humans. One of the fish found in Lake Rawa Taliwang is the swamp eel. Swamp eels are often caught for consumption and cultured by the local community. This study aims to determine the mercury (Hg) concentration in swamp eels (Monopterus albus) and assess their suitability for consumption. Sampling was conducted using purposive sampling technique at two stations with two replications at each station. Data analysis involved determining mercury concentration in the swamp eel samples using Atomic Absorption Spectroscopy (AAS). The results showed that the mercury concentration in swamp eels from Lake Rawa Taliwang was 0.13 mg/kg. According to the BPOM regulation no. 9 of 2022, the mercury concentration in these swamp eels is still below the permissible limit for metal contamination in food. This indicates that swamp eels were taken from Lake Rawa Taliwang is safe for consumption.

The Effectiveness of Ethnoscience Learning: Perception of Science Teacher Candidates Desi Ratnasari; M. Khairul Wazni; Suhirman Suhirman; M. Yamin; Agus Muliadi
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.7396

Study aims to explore the science teacher candidates regarding the effectiveness of ethnoscience learning. This study is an exploratory research conducted at the Mandalika University of Education with research subjects of 28 biology education students. This research uses a research instrument in the form of a closed questionnaire with answers using a Likert scale and has been validated by experts. This research data was analyzed using quantitative descriptive statistics and inferential statistics with independent sample t-test. The study results show that (1) The perception of prospective science teacher students regarding the effectiveness of ethnoscience learning has an average score of 2.98 in the Tall category, while based on gender, the average score for male students is 3.13 with the Tall category and for women it is 2.91 with Tall category; (2) there is no significant difference in the perceptions of male and female students regarding the effectiveness of ethnoscience learning as evidenced by a significance value of 0.116 which is greater than 0.05 (>0.05).

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