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ANALYSIS OF THE STATUS OF THE GIRIAN WATERSHED IN BITUNG CITY DUE TO HOUSEHOLD WASTE POLLUTION Rivaldo Tompoh; Arrijani; Nova Ogi
Indonesian Biodiversity Journal Vol. 3 No. 1 (2022): April 2022
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar

The Girian watershed with a length of 17.5 km is the longest river in Bitung City which flows through a densely populated area as well as various industries such as smoked fish, tofu and tempeh, animal husbandry, agriculture, and industrial fish factories whose waste goes directly to the Girian watershed. The great deal of population activities can have an impact on water quality and the Girian watershed ecosystem. This study aims to analyse the water quality of the Girian watershed caused by domestic waste. This study uses a quantitative descriptive approach and the method used in this study is the Indonesian National Standard (SNI) according to the water quality parameters that have been determined. The results of the analysis of water quality upstream to downstream show that there is a decrease in water quality. Upstream is classified as good when compared to the parameters that have been determined. Densely populated areas begin to experience a decrease in water quality, namely with DO and Oil and Fat that exceeds the predetermined quality standard. As well as estuaries that have concentrations of TSS, NH3-N, Oils and Fats, COD, and BOD that exceed the specified quality standards. The results of the calculation of the pollution index show that station point 1 upstream is classified as good in 4 groups, station point 2 in densely populated areas shows lightly polluted results in group 2, and The Station 3 estuary shows moderate pollution results in group 3

ECHINODERM COMMUNITY STRUCTURE IN TAMBA BEACH, NORTH MINAHASA REGENCY, NORTH SULAWESI PROVINCE Jelita Pricilya Tompolumiu; Verawati Ida Yani Roring; Nova Laurin Isye Mourein Ogi; Nonny Manampiring; Helen Joan Lawalata
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6391

Tamba Beach has several ecosystems, namely seagrass beds, sandy and rocky. Ecologically, seagrass beds are home to marine life, including Echinodermata. Echinoderms play an important role as an integral part of the food chain, eating organic waste. The purpose of this study was to analyze the community structure of Echinoderms at Station I (Seagrass Zone), Station II (Sandy Zone) and Station III (Coral Zone). Two methods are used in this study. The first is a qualitative description method by directly observing and quantitatively calculating the diversity index, uniformity index, dominance and abundance index formulas. The echinoderms found consisted of 4 classes, namely Holothuidea, Ophiuroidea, Echinoidea and class Asteroidea. The echinoderms found at the study site used a diversity index classified as stable. The dominance index is low because there are no dominant individuals, and the uniformity index is low. From the results obtained from the abundance in Tamba Beach, the highest value was in the Diadema setosum species with 113 individuals. Diadema setosum has the highest quantity at the three existing stations. This species can adapt to environmental changes.

Korelasi Persepsi Orang Tua Terhadap Pendidikan Seks Pada Anak Usia Dini di Desa Nunu Utara Kecamatan Rainis Kabupaten Kepulauan Talaud Suprianto Sasea; Meity N. Tanor; Nova L. I. M. Ogi
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 4 (2023): Desember : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v1i4.1522

The research problem in this study is the examination of the correlation between parental perceptions of sex education in early childhood in North Nunu Village, Rainis District, Talaud Islands Regency. The objective of this study is to establish the relationship between parental perspectives on sex education for young children in North Nunu Village, Rainis District, Talaud Islands Regency. A study was conducted in September to determine parents' attitudes of sex education in early childhood. The study employed a descriptive survey research method, utilising a quantitative methodology. According to the percentage calculations from the distributed questionnaire, it is evident that a significant number of parents expressed agreement rather than providing alternative answers when asked about their understanding of sex education for early childhood. Under the category of disagreement. The computation of the proportion for each indicator item has yielded a cumulative value of 1447, with an average of 72.35% indicating their agreement to receive instruction during early life. The correlation data computations indicate a positive association between parents' impressions of sex education in early infancy. Specifically, the resulting correlation coefficient (rxy) is 0.1000, based on data from 20 respondents. The significance level for this relationship is 0.05, and the critical value (rtable) is 0.422. These computations indicate that the value of rcount is greater than the value of rtable, with a significance level of 0.05. If the count of r is more than the count of rtable, then the hypothesis test concludes that there is a correlation between parents' judgements of sex education in early infancy.

Penerapan Komponen Tipe CTL (Contextual Teaching Learning) Untuk Meningkatkan Hasil Belajar Peserta Didik Materi Sistem Gerak di SMA Negeri 1 Tondano Paramitha Penanta; Nova L I M Ogi; Ferny M Tumbel
SOSCIED Vol 6 No 2 (2023): SOSCIED - November 2023
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v6i2.714

The research was conducted at SMA Negeri 1 Tondano class XI IPA 1 with the aim of improving student learning outcomes and seeing the suitability of implementing CTL type components in learning. This type of research is Classroom Action Research (PTK) with the application of CTL type components carried out through two cycles. In the first cycle, the average score obtained by students was 77.25 with a percentage of learning outcomes reaching 77.41% and in the CTL type component assessment, conformity was obtained with a percentage of 85.71%. Based on the percentage of learning outcomes that have not reached completeness, the research continues to cycle II. In cycle II, the average score obtained by students was 82.16 with a percentage of learning outcomes reaching 96.77% and in assessing the suitability of CTL type components, a suitability percentage of 100% was obtained. The results of the second cycle of research showed that student learning outcomes increased with a percentage of learning outcomes >85%, so it was concluded that the application of CTL type components could improve student learning outcomes.

ANALYSIS OF THE STATUS OF THE GIRIAN WATERSHED IN BITUNG CITY DUE TO HOUSEHOLD WASTE POLLUTION Rivaldo Tompoh; Arrijani Arrijani; Nova Ogi
Indonesian Biodiversity Journal Vol. 3 No. 1 (2022): April 2022
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v3i1.4413

The Girian watershed with a length of 17.5 km is the longest river in Bitung City which flows through a densely populated area as well as various industries such as smoked fish, tofu and tempeh, animal husbandry, agriculture, and industrial fish factories whose waste goes directly to the Girian watershed. The great deal of population activities can have an impact on water quality and the Girian watershed ecosystem. This study aims to analyse the water quality of the Girian watershed caused by domestic waste. This study uses a quantitative descriptive approach and the method used in this study is the Indonesian National Standard (SNI) according to the water quality parameters that have been determined. The results of the analysis of water quality upstream to downstream show that there is a decrease in water quality. Upstream is classified as good when compared to the parameters that have been determined. Densely populated areas begin to experience a decrease in water quality, namely with DO and Oil and Fat that exceeds the predetermined quality standard. As well as estuaries that have concentrations of TSS, NH3-N, Oils and Fats, COD, and BOD that exceed the specified quality standards. The results of the calculation of the pollution index show that station point 1 upstream is classified as good in 4 groups, station point 2 in densely populated areas shows lightly polluted results in group 2, and The Station 3 estuary shows moderate pollution results in group 3

ECHINODERM COMMUNITY STRUCTURE IN TAMBA BEACH, NORTH MINAHASA REGENCY, NORTH SULAWESI PROVINCE Jelita Pricilya Tompolumiu; Verawati Ida Yani Roring; Nova Laurin Isye Mourein Ogi; Nonny Manampiring
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6391

Tamba Beach has several ecosystems, namely seagrass beds, sandy and rocky. Ecologically, seagrass beds are home to marine life, including Echinodermata. Echinoderms play an important role as an integral part of the food chain, eating organic waste. The purpose of this study was to analyze the community structure of Echinoderms at Station I (Seagrass Zone), Station II (Sandy Zone) and Station III (Coral Zone). Two methods are used in this study. The first is a qualitative description method by directly observing and quantitatively calculating the diversity index, uniformity index, dominance and abundance index formulas. The echinoderms found consisted of 4 classes, namely Holothuidea, Ophiuroidea, Echinoidea and class Asteroidea. The echinoderms found at the study site used a diversity index classified as stable. The dominance index is low because there are no dominant individuals, and the uniformity index is low. From the results obtained from the abundance in Tamba Beach, the highest value was in the Diadema setosum species with 113 individuals. Diadema setosum has the highest quantity at the three existing stations. This species can adapt to environmental changes.

MORPHOLOGICAL IDENTIFICATION OF SEA CUCUMBER AND PROXIMATE ANALYSIS OF THE HABITAT SUBSTRATE OF MUDY SEA CUCUMBER ON MOLOSING ISLAND AND BIAU BEACH BOLAANG MONGONDOW REGENCY Jennifer Pangulimang; Revolson A Mege; Nonny Manampiring; Nova L.I.M Ogi
Indonesian Biodiversity Journal Vol. 4 No. 3 (2023): December 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i3.7618

Sea Cucumbers belong to the phylum Echinodermata, class Holothuroidea. These creatures are commonly found in areas near coral reefs, sandy waters, seaweed, seagrass beds, and muddy sands. This research aims to identify the various species of Sea Cucumbers in the waters around Molosing Island and Biau Beach, Bolaang Mongondow Regency. Furthermore, the research seeks to determine the nutritional content of the muddy substrate where Sea Cucumbers reside. The study involves observing the form, colour, and patterns (morphology) of Sea Cucumbers and testing the nutritional content of their muddy habitat substrate using proximate analysis with the SNI by difference method. The identification results of the form, colour, and patterns of Sea Cucumbers at Molosing Island and Biau Beach, Bolaang Mongondow Regency, reveal three species of Sea Cucumbers from different genera: Holothuturia and Stichopus. One species on Molosing Island is Holothuria leucospilota, while two on Biau Beach are Stichopus horrens and Stichopus vastus. Proximate analysis of the muddy habitat substrate of Sea Cucumbers includes the following parameters: ash content, protein content, crude fiber content, and fat content.

Nutritional Content of Green Algae Caulerpa racemosa and Brown Algae Sargassum polycystum at Ranowangko II Beach, Kombi District, Minahasa Regency Rorong, Joana Hope; Rampengan, Mercy Maggy Franky; Roring, Verawati Ida Yani; Ogi, Nova Laurin Isye Mourein
RUMPHIUS Vol 6 No 1 (2024): RUMPHIUS Pattimura Biological Journal
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/rumphiusv6i1p041-047

Ranowangko II beach is famous for its beautiful beaches and is a natural habitat for macroalgae, including Caulerpa racemosa and Sargassum polycystum. Despite its great potential and abundance, information about the nutritional content of both types of algae, especially in the Ranowangko II beach area, is still limited. This study aimed to determine the nutritional content (water content, ash content, protein, lipid, crude fiber, carbohydrate) of green algae Caulerpa racemosa and brown algae Sargassum polycystum in Ranowangko II beach. The type of research used is descriptive quantitative to determine the proximate nutrient content of two types of algae tested by proximate analysis in the laboratory. Based on the study results, there were variations in the nutritional content of the two types of algae tested. Green algae Caulerpa racemosa has a moisture content of 71.29%, ash content of 6.90%, protein of 2.78%, fat of 1.34%, crude fiber of 3.53%, and carbohydrates of 17.69%. Brown algae Sargassum polycystum has a water content of 83.23%, ash content of 1.82%, protein of 9.93%, fat of 1.72%, crude fiber of 11.18%, and carbohydrates of 3.30%. The conclusion obtained after conducting this research is that Caulerpa racemosa (green algae) and Sargassum polycystum (brown algae) have different nutritional content.

Effectiveness of Practicum Activities as an Effort to Improve Student Learning Outcomes at SMA Negeri 2 Tondano Yestika Lolowang; Arrijani Arrijani; Nova L. I. M. Ogi
Jurnal Arjuna : Publikasi Ilmu Pendidikan, Bahasa dan Matematika Vol. 1 No. 5 (2023): Oktober : Jurnal Arjuna : Publikasi Ilmu Pendidikan, Bahasa dan Matematika
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/arjuna.v1i5.219

This research aims to determine the effectiveness of practicum activities to improve student learning outcomes at SMA Negeri 2 Tondano. This type of research is quantitative descriptive research that uses a survey method to describe and explain data based on the reality in the field. The research was carried out by distributing questionnaires to teachers and students, observation sheets, and practical activity sheets with data sources consisting of 30 students of class X Science 1, 30 students of class X Science 2, and biology teachers. Based on the research results, the level of readiness to obtain data for class X IPA 1 At the implementation stage of the practicum activities for class X Science 1 is 91%; the efforts made to improve the quality of practicum implementation are by improving practicum weaknesses such as the availability of tools and materials, good laboratory management, conducting evaluations, arranging implementation schedules and paying attention to laboratory layout in order to carry out practicum optimally. The factors that influence the quality of practicum implementation include student motivation, limited tools and materials, practicum schedule, availability of facilities and infrastructure, teacher's role in practicum activities, and students' active thinking.

Macroalgae Diversity in Seagrass Ecosystem at Ranowangko Dua Village Beach Rantung, Live Clarisa Ivon; Ogi, Nova Laurin Isye Mourein; Roring, Verawati Ida Yani; Rampengan, Mercy Maggy Franky
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.55852

This research aims to provide information on the types, and diversity of macroalgae in seagrass ecosystems and water conditions in the waters of Ranowangko Dua Village Beach, Kombi District, Minahasa Regency. Observations of macroalgae in seagrass ecosystems were carried out using the quadrant transect method (1x1m) along 100 meters with an observation distance of every 10 meters per quadrant using 3 transect lines with a distance of 10 meters. The results found 12 species of macroalgae namely Halimeda Macroloba, Ulva intestinalis, Caulerpa Lentillifera, Neomeris Annulata, Halimeda Incrassata, Codium Arabicum, Turbinaria Ornata, Padina Minor, Acanthophora Spicifera, Amphiroa Fragillisima, Galaxaura Rugosa, and Mastophora Rosea. The diversity values of transects 1, 2, and 3 are 1.745; 1.378, and 1.294, respectively, included in the medium category. The absolute density value was highest in transect 2 (12.1), and lowest in transect 3 (7.5). The uniformity values of transects 1, 2, and 3 were 0.702; 0.555, and 0.521, respectively, including moderate (0.50 and less than 0.75). The dominance values of transects 1, 2, and 3 are 0.228; 0.348, and 0.362 respectively, which fall into the stable category or there is no dominating species. The results of physical and chemical parameters show the temperature value of 31.14°C, pH 8.99 is stable, and Dissolved Oxygen 7.62 mg/l is not polluted. In contrast, the salinity value of 35.14 ppt is not optimal, the brightness is in the low category of 0.38 m, and the turbidity value of 103 NTU is in the high category. Keywords: Seagrass ecosystem, macroalgae, ecological index, physical parameters, chemical parameters. Abstrak Penelitian ini bertujuan untuk memberikan informasi tentang jenis, keanekaragaman makroalga pada ekosistem padang lamun dan kondisi air di perairan Pantai Desa Ranowangko Dua Kecamatan Kombi Kabupaten Minahasa. Pengamatan makroalga pada ekosistem lamun dilakukan dengan metode transek kuadran (1x1m) sepanjang 100 meter dengan jarak pengamatan setiap 10 meter per kuadran menggunakan 3 line transek dengan jarak 10 meter. Hasil yang ditemukan 12 species makroalga yaitu Halimeda Macroloba, Ulva Intestinalis, Caulerpa Lentillifera, Neomeris Annulata, Halimeda Incrassata, Codium Arabicum, Turbinaria Ornata, Padina Minor, Acanthophora Spicifera, Amphiroa Fragillisima, Galaxaura Rugosa, dan Mastophora Rosea. Nilai keanekaragaman transek 1, 2 dan 3 masing-masing 1,745; 1,378 dan 1,294 termasuk dalam kategori sedang. Nilai Kepadatan mutlak tertinggi pada transek 2 (12,1), dan terendah pada transek 3 (7,5). Nilai keseragaman transek 1, 2 dan 3 masing-masing 0,702; 0,555 dan 0,521 termasuk sedang (0,50 dan kurang 0,75). Nilai dominansi transek 1, 2 dan 3 masing-masing 0,228; 0,348 dan 0,362 dimana masuk dalam kategori stabil atau tidak ada jenis yang mendominasi. Hasil parameter fisik dan kimia menunjukkan nilai suhu 31,14°C, pH 8,99 tergolong stabil, Oksigen Terlarut 7,62 mg/l tidak tercemar, sedangkan nilai salinitas 35,14 ppt tidak optimal, kecerahan dalam kategori rendah 0,38 m, dan nilai kekeruhan 103 NTU dalam kategori tinggi. Kata kunci : Ekosistem lamun, makroalga, indeks ekologi, parameter fisik, parameter kimia

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