Pub Date : 2022-04-28DOI: 10.22373/biotik.v10i1.10526
Nursafiah Nursafiah, Fajar Okta Widarta, Ikhsan Ikhsan, N. Muhammad
Knowing the existence of misconceptions in students is important, especially for prospective teacher students. The Covid-19 pandemic has limited learning activities, so educators' creativity is needed. This study aims to identify the existence of student misconceptions through the analysis of student teaching videos. The research subjects were 14 students of Biology Education Study Program at Syiah Kuala University Gayo Lues who programmed microteaching courses for the 2020/2021 academic year. Each student was asked to record his teaching activity, duration 20-30 minutes. The video was analyzed to identify the existence of misconceptions. The data obtained were analyzed quantitatively and qualitatively. The results showed that 36% of the total number of students experienced misconceptions, where cell material was the material with the highest number of misconceptions (60%). This study also shows that video recordings of teaching students can be used as an instrument to identify the existence of misconceptions in students.
了解学生中存在的误解是很重要的，尤其是对未来的教师学生。新冠肺炎大流行限制了学习活动，因此需要教育工作者的创造力。本研究旨在通过对学生教学视频的分析来识别学生误解的存在。研究对象是Syiah Kuala University生物教育研究项目的14名学生，他们为2020/2021学年编写了微教学课程。每位学生记录自己的教学活动，时长20-30分钟。对视频进行了分析，以确定是否存在误解。对所得数据进行定量和定性分析。结果显示，36%的学生经历过误解，其中细胞材料是误解最多的材料(60%)。本研究还表明，教学录像可以作为一种工具来识别学生中存在的误解。
{"title":"IDENTIFICATION OF BIOLOGICAL EDUCATION STUDENT MISCONCEPTIONS THROUGH STUDENT TEACHING VIDEO ANALYSIS","authors":"Nursafiah Nursafiah, Fajar Okta Widarta, Ikhsan Ikhsan, N. Muhammad","doi":"10.22373/biotik.v10i1.10526","DOIUrl":"https://doi.org/10.22373/biotik.v10i1.10526","url":null,"abstract":"Knowing the existence of misconceptions in students is important, especially for prospective teacher students. The Covid-19 pandemic has limited learning activities, so educators' creativity is needed. This study aims to identify the existence of student misconceptions through the analysis of student teaching videos. The research subjects were 14 students of Biology Education Study Program at Syiah Kuala University Gayo Lues who programmed microteaching courses for the 2020/2021 academic year. Each student was asked to record his teaching activity, duration 20-30 minutes. The video was analyzed to identify the existence of misconceptions. The data obtained were analyzed quantitatively and qualitatively. The results showed that 36% of the total number of students experienced misconceptions, where cell material was the material with the highest number of misconceptions (60%). This study also shows that video recordings of teaching students can be used as an instrument to identify the existence of misconceptions in students.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76004573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-28DOI: 10.22373/biotik.v10i1.11370
Boima Situmeang, Muhammad Mutfi Amin Shidqi, Firman Rezaldi
Bidara leaves contain antioxidants that are good for the body because they play a role in warding off free radicals. Kombucha made with bidara leaves is an innovative tea variant product that comes from the symbiotic culture of fermentation between bacteria and fungi. The purpose of this study is to determine the effect of fermentation time on antioxidant and organoleptic activity of kombucha and to determine the value of antioxidant activity of kombucha. The parameters measured were the antioxidant activity using the DPPH (2,2-diphenyl-picrilhydrazine) radical method and the organoleptic test with the hedonic scale including taste, aroma and color. The analysis showed that the length of fermentation time affected both the antioxidant activity and organoleptic test which included the taste, aroma and color of kombucha leaves of bidara. Based on the mean value of DPPH radical scavenging percentage, the antioxidant activity at fermentation time of 1, 8 and 12 days are 24,72%; 35,98%; and 7,05% with the highest antioxidant activity of kombucha made with bidara leaves occurred at 8 days fermentation is 35.87%. The IC50 value of kombucha made with bidara leaves product at fermentation time of 1, 8 and 12 days are 524,63 ppm; 441,03 ppm; and 1442,3 ppm.
{"title":"THE EFFECT OF FERMENTATION TIME ON ANTIOXIDANT AND ORGANOLEPTIC ACTIVITIES OF BIDARA (Zizipus spina CRISTI L.) KOMBUCHA DRINK","authors":"Boima Situmeang, Muhammad Mutfi Amin Shidqi, Firman Rezaldi","doi":"10.22373/biotik.v10i1.11370","DOIUrl":"https://doi.org/10.22373/biotik.v10i1.11370","url":null,"abstract":"Bidara leaves contain antioxidants that are good for the body because they play a role in warding off free radicals. Kombucha made with bidara leaves is an innovative tea variant product that comes from the symbiotic culture of fermentation between bacteria and fungi. The purpose of this study is to determine the effect of fermentation time on antioxidant and organoleptic activity of kombucha and to determine the value of antioxidant activity of kombucha. The parameters measured were the antioxidant activity using the DPPH (2,2-diphenyl-picrilhydrazine) radical method and the organoleptic test with the hedonic scale including taste, aroma and color. The analysis showed that the length of fermentation time affected both the antioxidant activity and organoleptic test which included the taste, aroma and color of kombucha leaves of bidara. Based on the mean value of DPPH radical scavenging percentage, the antioxidant activity at fermentation time of 1, 8 and 12 days are 24,72%; 35,98%; and 7,05% with the highest antioxidant activity of kombucha made with bidara leaves occurred at 8 days fermentation is 35.87%. The IC50 value of kombucha made with bidara leaves product at fermentation time of 1, 8 and 12 days are 524,63 ppm; 441,03 ppm; and 1442,3 ppm.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84034300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-28DOI: 10.22373/biotik.v10i1.10915
H. Hasanuddin, K. Khairil, Putri Putri, M. Marlina
The combination of pedagogical competence and good professional competence becomes a necessity for teachers. PCK is a knowledge developed by teachers over time, through experiences on how to teach the material in various techniques and approaches to gain a wealth of student understanding. This research was conducted to find out the profile of PCK of Biology teachers of senior high schools. The study was conducted in April 2018. The population in this study was all Biology teachers of senior high schools in Bireuen district (N=137). While the samples of this study were 32 Biology teachers selected by cluster sampling. The method used in this research was the quantitative method with descriptive analysis through survey design. Teachers’ PCK was obtained by CoRe (Content Representation) instrument and triangulated data with students’ questionnaire. The results showed that PCK profile of Biology teachers at senior high schools in Bireuen district was at the growing PCK level.
{"title":"Pedagogical Content Knowledge (PCK) Profiles of Senior Secondary Biology Teachers at Public Schools in Bireuen District, Aceh, Indonesia","authors":"H. Hasanuddin, K. Khairil, Putri Putri, M. Marlina","doi":"10.22373/biotik.v10i1.10915","DOIUrl":"https://doi.org/10.22373/biotik.v10i1.10915","url":null,"abstract":"The combination of pedagogical competence and good professional competence becomes a necessity for teachers. PCK is a knowledge developed by teachers over time, through experiences on how to teach the material in various techniques and approaches to gain a wealth of student understanding. This research was conducted to find out the profile of PCK of Biology teachers of senior high schools. The study was conducted in April 2018. The population in this study was all Biology teachers of senior high schools in Bireuen district (N=137). While the samples of this study were 32 Biology teachers selected by cluster sampling. The method used in this research was the quantitative method with descriptive analysis through survey design. Teachers’ PCK was obtained by CoRe (Content Representation) instrument and triangulated data with students’ questionnaire. The results showed that PCK profile of Biology teachers at senior high schools in Bireuen district was at the growing PCK level.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80260751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.9524
Talitha Fadhila, Mahrudin Mahrudin, M. Arsyad
Keberadaan makhluk hidup di suatu habitat merupakan sesuatu yang dapat dijadikan objek pembelajaran, terlebih dahulu objek yang menjadi potensi lokal daerah yang harus diperkenalkan kepada siswa, baik berupa objek yang diamati, cara hidup, manfaat bahkan pelestarian. Salah satu objek yang dapat dikaji adalah semak. Objek kajian berupa semak tersebut dapat dimuat sebagai bahan pengayaan pada materi pembelajaran biologi yang mengacu pada kurikulum dan silabus yang sesuai dalam bentuk sumber belajar. Sumber belajar ada berbagai macam, di antaranya adalah bahan pengayaan berbentuk booklet . Booklet merupakan salah satu bentuk inovasi bahan pengayaan dalam bentuk media cetak. Tujuan dalam penelitian ini adalah kevalidan booklet Keanekaragaman Semak Berbasis Penelitian Sebagai Bahan Pengayaan Konsep Keanekaragaman Hayati di SMA. Penelitian ini merupakan penelitian pengembangan yang menggunakan data sekunder. Bahan pengayaan yang dikembangkan berbentuk booklet dengan metode pengembangan mengacu pada Evaluasi Formatif Tessmer. Validitas booklet diuji oleh 3 orang validator: dosen pembimbing 1, dosen pembimbing 2, dan 1 orang guru mata pelajaran biologi SMA. Aspek kevalidan dalam booklet adalah aspek kevalidan bahasa, aspek kevalidan penyajian, dan aspek penyajian isi. Hasil validasi menunjukkan skor 92% dengan kriteria validasi yaitu valid.
{"title":"Development of Research-Based Booklet for Enrichment Material of Biodiversity Concepts in SMA","authors":"Talitha Fadhila, Mahrudin Mahrudin, M. Arsyad","doi":"10.22373/biotik.v9i2.9524","DOIUrl":"https://doi.org/10.22373/biotik.v9i2.9524","url":null,"abstract":"Keberadaan makhluk hidup di suatu habitat merupakan sesuatu yang dapat dijadikan objek pembelajaran, terlebih dahulu objek yang menjadi potensi lokal daerah yang harus diperkenalkan kepada siswa, baik berupa objek yang diamati, cara hidup, manfaat bahkan pelestarian. Salah satu objek yang dapat dikaji adalah semak. Objek kajian berupa semak tersebut dapat dimuat sebagai bahan pengayaan pada materi pembelajaran biologi yang mengacu pada kurikulum dan silabus yang sesuai dalam bentuk sumber belajar. Sumber belajar ada berbagai macam, di antaranya adalah bahan pengayaan berbentuk booklet . Booklet merupakan salah satu bentuk inovasi bahan pengayaan dalam bentuk media cetak. Tujuan dalam penelitian ini adalah kevalidan booklet Keanekaragaman Semak Berbasis Penelitian Sebagai Bahan Pengayaan Konsep Keanekaragaman Hayati di SMA. Penelitian ini merupakan penelitian pengembangan yang menggunakan data sekunder. Bahan pengayaan yang dikembangkan berbentuk booklet dengan metode pengembangan mengacu pada Evaluasi Formatif Tessmer. Validitas booklet diuji oleh 3 orang validator: dosen pembimbing 1, dosen pembimbing 2, dan 1 orang guru mata pelajaran biologi SMA. Aspek kevalidan dalam booklet adalah aspek kevalidan bahasa, aspek kevalidan penyajian, dan aspek penyajian isi. Hasil validasi menunjukkan skor 92% dengan kriteria validasi yaitu valid.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90986692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.10714
Erni Hawayant, Berliana Palmasari, Nopriyanto Nopriyanto, N. Sebayang
This study aims to obtain differences in the response of growth and yield of Sweet Corn (Zea mays saccarhata Sturt) using a single row planting system and a two row planting system. This research was conducted in Sukajadi Village, Banyuasin Regency, South Sumatra Province. Research time in January. This study used a split plot design with 8 treatment combinations which were repeated 4 times. The treatment factors in question are as follows: Main Plot : Single Row Planting System (S1), Two Row Planting System (S2), P0: No treatment , P1: NPK : 60g (plot) P2: NPK : 120g (plot) P3 : NPK : 180g (plot). The variables observed in this study were plant height/plant (cm), length of seed cob/plant (cm), cob weight/plant (gr), production of plots/plot (kg). Based on the results of the study, it was shown that the treatment with a two-row planting system (DB) and application of 300kg/ha compound NPK fertilizer gave the best effect on sweet corn production of 12.96 kg/plot or equivalent to 17.28 tons/ha.
{"title":"COMBINATION OF PLANTING METHODS AND MULTIPLE NPK FERTILIZER ON PLANT GROWTH AND PRODUCTION SWEET CORN (Zea mays saccharata Sturt)","authors":"Erni Hawayant, Berliana Palmasari, Nopriyanto Nopriyanto, N. Sebayang","doi":"10.22373/biotik.v9i2.10714","DOIUrl":"https://doi.org/10.22373/biotik.v9i2.10714","url":null,"abstract":"This study aims to obtain differences in the response of growth and yield of Sweet Corn (Zea mays saccarhata Sturt) using a single row planting system and a two row planting system. This research was conducted in Sukajadi Village, Banyuasin Regency, South Sumatra Province. Research time in January. This study used a split plot design with 8 treatment combinations which were repeated 4 times. The treatment factors in question are as follows: Main Plot : Single Row Planting System (S1), Two Row Planting System (S2), P0: No treatment , P1: NPK : 60g (plot) P2: NPK : 120g (plot) P3 : NPK : 180g (plot). The variables observed in this study were plant height/plant (cm), length of seed cob/plant (cm), cob weight/plant (gr), production of plots/plot (kg). Based on the results of the study, it was shown that the treatment with a two-row planting system (DB) and application of 300kg/ha compound NPK fertilizer gave the best effect on sweet corn production of 12.96 kg/plot or equivalent to 17.28 tons/ha.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83446025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.9048
R. Rahmadina, Linda Eriri
The purpose of this research is to produce a research book based on invertebrate taxonomy in Biology Lectures using Borg & Gall based development methods combined with Dick & Carey's learning in the Stages of development, namely: preliminary studies, planning, product draft development, product validation tests by experts, lecturers and peer reviewer, product revision, product trial, product revision. Data collection uses a questionnaire with descriptive data analysis techniques. Based on the results of research that has been developed, it is considered very good and feasible to be used as a textbook with an average of 102.5 (81.3%) by the validation team of material experts and learning designs, as well as lecturers and peer reviewers with an average of 72 (82,91 %), The results of trials by students individually, small groups and limited field of textbooks Invertebrate Taxonomy is very good and feasible to be developed with an average value of 730.6 (86.6%).
{"title":"THE EVALUATION OF BIOLOGY TEACHING USING INVERTEBRATE TAXONOMY TEXTBOOK","authors":"R. Rahmadina, Linda Eriri","doi":"10.22373/biotik.v9i2.9048","DOIUrl":"https://doi.org/10.22373/biotik.v9i2.9048","url":null,"abstract":"The purpose of this research is to produce a research book based on invertebrate taxonomy in Biology Lectures using Borg & Gall based development methods combined with Dick & Carey's learning in the Stages of development, namely: preliminary studies, planning, product draft development, product validation tests by experts, lecturers and peer reviewer, product revision, product trial, product revision. Data collection uses a questionnaire with descriptive data analysis techniques. Based on the results of research that has been developed, it is considered very good and feasible to be used as a textbook with an average of 102.5 (81.3%) by the validation team of material experts and learning designs, as well as lecturers and peer reviewers with an average of 72 (82,91 %), The results of trials by students individually, small groups and limited field of textbooks Invertebrate Taxonomy is very good and feasible to be developed with an average value of 730.6 (86.6%).","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88858236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.9320
Isfanda Isfanda, Yuni Rahmayanti
Mosquitoes are insects that belong to Diptera order. Mosquitoes related to public health and act as vectors of disease. The mosquito genus that has been confirmed as a vector consists of Anopheles , Culex , Aedes, Mansonia , and Armigeres . This study aims to map the diversity of mosquito species in Sabang City. This study uses the Magoon trap method, which uses animals as attractants to get zoophilic mosquitoes in four different places. Locations of data collection were carried out in Iboih Village, Balohan Village, Kenekai Village, and Paya Village. The results showed that the diversity of mosquitoes at four locations in the city of Sabang found 19 species of mosquitoes. The mosquito species found were An. leukosphyrus group, An. tesselatus, An. subpictus, An. kochi, An. vagus, An. indefinitus, Ae. albopictus, Ae. Verralina, Ae. aurentius, Ae. vexans, Cx. fuscocephalus, Cx. vishnui, Cx. quinquefasciatus, Cx. tritaeniorynchus, Cx. sitiens, Cx. gelidus, Cx. hutchinsoni, Ar. subalbatus , and Ma. dives . The entire mosquito identified are mosquitos that has been confirmed as vectors of malaria, filariasis, and arbovirosis.
{"title":"DIVERSITY OF MOSQUITO SPECIES THAT POTENTIALLY AS A DISEASE VECTOR IN SABANG","authors":"Isfanda Isfanda, Yuni Rahmayanti","doi":"10.22373/biotik.v9i2.9320","DOIUrl":"https://doi.org/10.22373/biotik.v9i2.9320","url":null,"abstract":"Mosquitoes are insects that belong to Diptera order. Mosquitoes related to public health and act as vectors of disease. The mosquito genus that has been confirmed as a vector consists of Anopheles , Culex , Aedes, Mansonia , and Armigeres . This study aims to map the diversity of mosquito species in Sabang City. This study uses the Magoon trap method, which uses animals as attractants to get zoophilic mosquitoes in four different places. Locations of data collection were carried out in Iboih Village, Balohan Village, Kenekai Village, and Paya Village. The results showed that the diversity of mosquitoes at four locations in the city of Sabang found 19 species of mosquitoes. The mosquito species found were An. leukosphyrus group, An. tesselatus, An. subpictus, An. kochi, An. vagus, An. indefinitus, Ae. albopictus, Ae. Verralina, Ae. aurentius, Ae. vexans, Cx. fuscocephalus, Cx. vishnui, Cx. quinquefasciatus, Cx. tritaeniorynchus, Cx. sitiens, Cx. gelidus, Cx. hutchinsoni, Ar. subalbatus , and Ma. dives . The entire mosquito identified are mosquitos that has been confirmed as vectors of malaria, filariasis, and arbovirosis.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73595849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.10375
Y. I. M. Nur, D. Syafrianti, Nulda Azmi
The purpose of this study was to determine the learning outcomes of students by applying the MURDER type cooperative learning model at MTsN Sijunjung. This type of research is a quasi-experimental research with a randomized control group design post-test only design. The instrument used was a test of learning outcomes, by compiling tests, validation tests, trials, and item analysis. Data analysis techniques are the normality tests, homogeneity tests, and hypothesis tests. The results showed differences in the average value, standard deviation, and variance of the experimental class and the control class. The results showed that the research hypothesis was accepted. In conclusion, the learning outcomes in the experimental class with the MURDER type cooperative learning model are better than the control class (normal).
{"title":"IMPLEMENTATION OF MURDER TYPE COOPERATIVE LEARNING MODEL IN BIOLOGY LEARNING","authors":"Y. I. M. Nur, D. Syafrianti, Nulda Azmi","doi":"10.22373/biotik.v9i2.10375","DOIUrl":"https://doi.org/10.22373/biotik.v9i2.10375","url":null,"abstract":"The purpose of this study was to determine the learning outcomes of students by applying the MURDER type cooperative learning model at MTsN Sijunjung. This type of research is a quasi-experimental research with a randomized control group design post-test only design. The instrument used was a test of learning outcomes, by compiling tests, validation tests, trials, and item analysis. Data analysis techniques are the normality tests, homogeneity tests, and hypothesis tests. The results showed differences in the average value, standard deviation, and variance of the experimental class and the control class. The results showed that the research hypothesis was accepted. In conclusion, the learning outcomes in the experimental class with the MURDER type cooperative learning model are better than the control class (normal).","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82588753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.10146
M. Mawardi, Fira Yolanda, Elfrida Elfrida, T. M. Sarjani
Bivalves are a class of Phylum molluscs which charaterized by soft, nonsegmented body and protected by a pair of shells. These animals are widespread in coastal areas, especially in mangrove ecosystems. Bivalves are suitable to be used as indicators of aquatic biology because their lives are relatively sedentary and has the ability to respond to water conditions. The purpose of this study was to determine the distribution pattern of Bivalves in the coastal area of Langsa City based on the characteristics of their habitat. Sampling was carried out in March 2021. The method used in this study was the survey method. Determination of the sampling location using the Proposive Sampling method, so that 2 research locations were selected. The collected data was analyzed using the morissita index and dominance index formulas. The results showed that the distribution pattern of Bivalvia in the coastal area of Langsa City was generally classified as a clustered pattern category where the index value of Id>1. The habitat characteristics of the four Bivalvia species are almost the same, namely the texture of the sandy muddy substrate, but different habitat are found for Anadara granosa, namely the sandy muddy texture with the preference of high salinity.
{"title":"BIVALVIAN DISTRIBUTION PATTERN BASED ON HABITAT CHARACTERISTICS IN THE COASTAL AREA OF LANGSA CITY","authors":"M. Mawardi, Fira Yolanda, Elfrida Elfrida, T. M. Sarjani","doi":"10.22373/biotik.v9i2.10146","DOIUrl":"https://doi.org/10.22373/biotik.v9i2.10146","url":null,"abstract":"Bivalves are a class of Phylum molluscs which charaterized by soft, nonsegmented body and protected by a pair of shells. These animals are widespread in coastal areas, especially in mangrove ecosystems. Bivalves are suitable to be used as indicators of aquatic biology because their lives are relatively sedentary and has the ability to respond to water conditions. The purpose of this study was to determine the distribution pattern of Bivalves in the coastal area of Langsa City based on the characteristics of their habitat. Sampling was carried out in March 2021. The method used in this study was the survey method. Determination of the sampling location using the Proposive Sampling method, so that 2 research locations were selected. The collected data was analyzed using the morissita index and dominance index formulas. The results showed that the distribution pattern of Bivalvia in the coastal area of Langsa City was generally classified as a clustered pattern category where the index value of Id>1. The habitat characteristics of the four Bivalvia species are almost the same, namely the texture of the sandy muddy substrate, but different habitat are found for Anadara granosa, namely the sandy muddy texture with the preference of high salinity.","PeriodicalId":33660,"journal":{"name":"Biotik Jurnal Ilmiah Biologi Teknologi dan Kependidikan","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89664187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.22373/biotik.v9i2.10860
Lisa Rauzatul Maretia, S. Samingan, H. Hasanuddin, W. Wardiah, C. Nurmaliah
Crust moss (lichen) is a symbiotic organism between fungi and algae which play important roles in environment and can grow in extreme conditions. Therefore, those are important issues to be concerned. The study was aimed to identify the lichen species and their substrates in the Ie Seu um area of Mesjid Raya District, Aceh Besar Regency. This research used exploratory survey methods. Observations were done at radii of 10, 20 and 30 meters from the hot spring. The parameters of the study were lichen species, types of thallus and substrate. Besides, the parameters consisting of air temperature and humidity, and light intensity were also measured. Data was analyzed descriptively and was revealed in tables and figures. The results showed that there were 16 lichen species consisting of 7 species (at radius of 10 meters), 6 species (at radius of 20 meters), and 9 species (at radius of 30 meters). From the total species, there were 12 crustose-thallus species and 4 foliose-thallus species. The substrate types serve as the habitat of lichen were trees, stones and dead wood.
苔藓是一种介于真菌和藻类之间的共生生物，具有重要的环境作用，能在极端条件下生长。因此，这些都是值得关注的重要问题。本研究的目的是鉴定亚齐省省梅斯吉德拉亚县Ie Seu um地区地衣种类及其底物。本研究采用探索性调查方法。在距离温泉10米、20米和30米的半径处进行观测。研究参数为地衣种类、菌体类型和底物。此外，还测量了空气温度、湿度、光照强度等参数。对数据进行描述性分析，并以表格和图表的形式显示。结果表明:该地区共有地衣16种，其中10 m半径处有7种，20 m半径处有6种，30 m半径处有9种。其中，壳状体12种，叶状体4种。作为地衣栖息地的基质类型有树木、石头和枯木。
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