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Jurnal Bios Logos
Published by Universitas Sam Ratulangi
ISSN : 20889569     EISSN : 26563282     DOI : https://doi.org/10.35799/jbl.11.2.2020.28153
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
JURNAL BIOS LOGOS is the journal published by Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University. The aims of the journal are to publish original research papers and article review in biology science i.e. botany, zoology, molecular biology, microbiology, ecology, diversity and conservation, taxonomy and biogeography. BIOS LOGOS is published two times per year (February and August)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 264 Documents
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Kepadatan dan Pola Sebaran Rhizanthes zippelii (Blume) Spach di Gunung Poteng Cagar Alam Raya Pasi Kota Singkawang Kalimantan Barat Muhamad Arif Romadhan; Rafdinal Rafdinal; Elvi Rusmiyanto Pancaning Wardoyo
JURNAL BIOS LOGOS Vol. 14 No. 2 (2024): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v14i2.54583

Abstract

Rhizanthes zippelii merupakan tumbuhan parasit yang termasuk famili Rafflesiaceae. Keberadaan R. zippelii yang tersebar di Gunung Poteng Cagar Alam Raya Pasi dapat terancam diakibatkan karena aktifitas manusia di sekitar habitat, serta kondisi lingkungan sekitarnya. Hal tersebut karena R. zippelii sangat sensitif terhadap kondisi lingkungan sekitarnya untuk dapat tumbuh. Penelitian ini bertujuan untuk melihat pola sebaran dan kepadatan R. zippelii di Gunung Poteng, Cagar Alam Raya Pasi Kota Singkawang, Kalimantan Barat. Pengambilan data dilakukan pada bulan Juli 2023 dengan menggunakan metode survei dan stasiun penelitian yang diletakan pada empat titik berbeda dengan luas 100x100 m pada setiap stasiun dan di dalamnya terdapat plot berukuran 20x20 m sebanyak 25 plot. Data dianalisis dengan persamaan kepadatan dan pola sebaran dengan Indeks Morisita. Hasil penelitian didapatkan bahwa kepadatan R. zippelii dalam fase knop hidup sebanyak 64 individu/ha dengan kepadatan relatif 44,44%, knop busuk sebanyak 50,5 individu/ha dengan kepadatan relatif 35,06%, mekar sebanyak 0,25 individu/Ha dengan kepadatan relatif 0,17%, dan mekar busuk sebanyak 29,25 individu/ha dengan kepadatan relatif 20,31%. Data kepadatan tersebut menunjukan bahwa R, zippelii pada fase knop lebih dominan dibandingkan dengan fase mekar. Berdasarkan Indeks Morisita maka didapat nilai sebaran R. zippelii sebesar 0,60. Hasil tersebut menunjukan bahwa sebaran R. zippelii menyebar secara mengelompok.
Antibacterial Activity of Simpur Leaves Methanol Extract (Dillenia sp.) Againts Staphylococcus aureus Shafira Qurrata A'yuni; Rikhsan Kurniatuhadi; Zulfa Zakiah
JURNAL BIOS LOGOS Vol. 15 No. 1 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i1.54604

Abstract

Simpur (Dillenia sp.) is a plant that can be used as traditional antibacterial medicine. This study aims to determine the inhibitory activity of Staphylococcus aureus bacteria when exposed to a concentration of methanol extract from Simpur leaves (Dillenia sp.). This study utilized a completely randomized design with five concentration levels of Dillenia sp. specifically, the study included a control group and methanol extracts of Simpur leaves at concentrations of 5%, 10%, 15%, and 20%. The methods used included total plate count, hemocytometer, and UV-Vis spectrophotometry, which were then analyzed using ANOVA (Analysis of Variance). The results showed that the greatest inhibition occurred in the methanol extract of Simpur leaves (Dillenia sp.) at a concentration of 20%, there was a decrease in the number of colonies ranging from 90% to 94%, while the decrease in the number of cells ranged from 17% to 18%. The lowest inhibition was found in the methanol extract of Simpur leaves (Dillenia sp.) with a concentration of 10%, the proportion of decreasing the number of colonies ranged from 63% to 70%, while the proportion of decreasing the number of cells ranged from 6% to 7%. The highest optical density (OD) value at a 20% concentration ranged from 0.482 to 0.547, while the lowest value at a 5% concentration ranged from 0.127 to 0.131. The conclusion of this study is that the methanol extract of Simpur leaves (Dillenia sp.) Bacteriostatic antibiotics only inhibit bacterial growth and cannot kill bacteria.
Exploring Balanced Nutrition Knowledge and Nutritional Status among Adolescent Girls in Urban Areas Enji Virginia Tampi; Yulianty Sanggelorang; Nova Hellen Kapantow
JURNAL BIOS LOGOS Vol. 14 No. 2 (2024): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v14i2.54631

Abstract

The nutritional status is indirectly influenced by the level of knowledge, which can affect an individual's attitudes and behaviors in food selection and ultimately impact their nutritional status. This study aims to analyze the relationship between balanced nutrition knowledge and the nutritional status of adolescent girls at State Senior High School (SSHS) 9 Manado. Employing an analytical survey method with a cross-sectional approach, the research was conducted from February to June 2023 at SSHS 9 Manado. The study sample comprised 100 adolescent girls selected through stratified random sampling. Nutritional status was assessed using a digital scale with a precision of 0.1 kg for weight measurement and a microtoise with a precision of 0.1 cm for height measurement. Additionally, a questionnaire consisting of 20 questions was administered to the adolescent girls to collect data on their nutrition knowledge. The research findings indicate that 49% of the respondents possessed sufficient nutrition knowledge, with 81% having a normal nutritional status. Statistical analysis using the Kruskal-Wallis test revealed no significant relationship between balanced nutrition knowledge and the nutritional status of adolescent girls, with a p-value of 0.610. Thus, it can be concluded that there is no significant association between balanced nutrition knowledge and the nutritional status of adolescent girls in this study.
Analyzing Macro-Nutrient Intake and Nutritional Status of Adolescent Girls in Manado Veibi Ester Politon; Yulianty Sanggelorang; Nancy S H Malonda
JURNAL BIOS LOGOS Vol. 14 No. 3 (2024): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v14i3.54647

Abstract

The nutritional status is directly influenced by macronutrient intake, with imbalances potentially leading to nutritional issues. This study aimed to analyze the correlation between macronutrient intake and the nutritional status of female students at State Senior High School (SSHS) 9 Manado. Employing an analytic survey with a cross-sectional design, the research was conducted from February to June 2023 at SSHS 9 Manado, involving students from grades X and XI, totaling 100 samples. Research instruments included a 24-hour food recall form, a microtoise for height measurement, and a digital scale for weight measurement. The correlation between variables was tested using the Spearman Rank correlation test. Findings revealed that a majority of respondents exhibited deficits in carbohydrate, protein, and fat intake, despite maintaining a normal nutritional status of 81%. However, statistical analysis indicated no significant relationship between carbohydrate, protein, and fat intake and the nutritional status of female students. Consequently, it was concluded that there was no significant correlation between macronutrient intake and the nutritional status of female students at SSHS 9 Manado.
Keanekaragaman Kupu-Kupu Nymphalidae Di Kawasan Taman Hutan Raya Gunung Tumpa, Manado-Sulawesi Utara Novisos Antoni; Roni Koneri; Pience Maabuat
JURNAL BIOS LOGOS Vol. 14 No. 2 (2024): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v14i2.55224

Abstract

Kupu-kupu famili Nymphalidae memiliki jumlah spesies terbesar dibandingkan dengan famili kupu-kupu lainnya dan memiliki peranan sangat penting dalam ekosistem. Famili ini umumnya bersifat generalis dan menempati berbagi habitat seperti hutan, lahan perkebunan, dan semak. Pada saat ini populasi kupu-kupu ini mulai mengalami penurunan karena adanya alih fungsi hutan menjadi lahan pertanian yang dikelola secara intensif. Penelitian ini bertujuan untuk menganlisis keanekaragaman kupu-kupu Nymphalidae di Kawasan Taman Hutan Raya Gunung Tumpa, Manado, Sulawesi Utara. Keanekaragaman pada Kawasan Taman Hutan Raya Gunung Tumpa termasuk dalam kategori sedang. Jumlah spesies yang ditemukan sebanyak 25 spesies dan 900 jumlah individu kupu-kupu Nyimphalidae. Spesies Ideopsis juventa dengan jumlah 176 individu merupakan spesies yang paling banyak ditemukan. Sedangkan yang paling sedikit ditemukan adalah Vindula celebensis dan Euploea hewitsonii masing-masing 2 individu.
Keragaman Liana di Desa Uemea, Kecamatan Toili, Kabupaten Banggai, Sulawesi Tengah, Indonesia Gina Latifa; Kurniasih Sukenti; Moh. Iqbal
JURNAL BIOS LOGOS Vol. 15 No. 1 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i1.56259

Abstract

Sulawesi is the largest island in the Wallacea region with about 53% of the area with about 500 endemic plant species including lianas. This study aims to inventory various types of lianas in Uemea Village, Toili District, Banggai Regency, Central Sulawesi, Indonesia. The method used in this research is the cruising method, which involves exploring the area around the research site. Found 25 species of lianas belonging to 14 families that have various types of climbing tools, which use stems, attached roots, tendrils, flagella, and petioles. The most common family found was Araceae with 9 species in Uemea Village, Toili District, Banggai Regency, Central Sulawesi, Indonesia.
Agrosilvopasture System in Taratara Village, West Tomohon District, Tomohon City, North Sulawesi Euis Francoise S Pangemanan; Fabiola Baby Saroinsong; Octavianus Yohanis Pandey; Semuel Paulus Ratag
JURNAL BIOS LOGOS Vol. 15 No. 1 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i1.56771

Abstract

The agrosilvopastura system is one part of an efficient agroforestry system to be applied in integrated landscape management. The community in Taratara Village, West Tomohon Sub-district, North Sulawesi Province has a majority of people who work as farmers. Some of the people of Taratara Village who work as farmers also raise livestock on the same plot of land with various crops. This indicates that the community group applies the agrosilvopastura system in their landscape management. This study aims to assess the pattern of agrosilvopastura application in Taratara Village. The research method used was a survey method by means of interviews using a questionnaire as a guide and field observations. The survey results show that, in Taratara Village there are as many as 5 farmers who apply agrosilvopastura patterns. The results showed that the agrosilvopastura pattern in Taratara Village combines the cultivation of forestry crops and agricultural crops together with the raising of livestock (pigs, ducks, chickens, cows) on the same land. Livestock are raised with various methods and feeds that are adapted to the type of livestock. Woody crops are planted randomly and regularly, and food crops are also planted regularly and regularly among woody crops. Farmers who apply the agrosilvopastura pattern in Taratara Village choose this pattern because of its advantages, namely 1) getting more optimal results with the presence of trees, food crops and livestock on the same land, 2) parts of cultivated plants that are not consumed or poor harvests can be used as animal food, 3) more efficient land utilization, 4) the acquisition of products (harvestable products) is more diverse, 5) certain livestock raised can be utilized for their energy, 6) improving soil fertility.
Hygienic Behavior of Stingless Bees (Heterotrigona itama) in Cultivated Colonies in the Imbo Putui Customary Forest Reni Madila; Novia Gesriantuti; Nofripa Herlina; Nuskan Syarif; Said Faizan Tas’ad
JURNAL BIOS LOGOS Vol. 15 No. 1 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i1.57507

Abstract

One of the important behaviors of stingless bees is hygienic behavior, which includes cleaning the nest from dirt, food scraps, and dead insect carcasses to keep the colony healthy and disease-free. The goal of this study was to determine the type and quantity of waste produced by H. itama in the nest, as well as the time spent by worker bees removing waste from the nest. The research method employed was direct observation and quantitative measurement of three active H. itama colonies. The findings revealed that the trash generated contained carcasses, feces, and food scraps. Feces and food scraps accounted for 89%, with carcasses accounting for 11%. The activity of flinging waste out of the nest decreased during the day due to H. itama's high movement in and out of the nest in search of food, as well as high ambient temperatures. The busiest times for garbage disposal were in the morning (09.10 - 11.10 WIB) and afternoon (13.10 - 16.10 WIB). A clean nest with minimal waste suggests a healthy H. itama colony with good hygiene behaviors. In contrast, a messy nest with much excrement indicates an unhealthy H. itama colony with poor hygiene.
Estimasi Kelimpahan Kepiting Bakau (Scylla sp) di Desa Alai, Kecamatan Ungar, Kabupaten Karimun Andini Almukharima; Yulminarti
JURNAL BIOS LOGOS Vol. 15 No. 1 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i1.57601

Abstract

Kepiting bakau memiliki potensi sebagai komoditas perikanan utama yang dapat mendukung mata pencaharian para nelayan. Namun, tingginya permintaan pasar dapat mendorong nelayan untuk mengeksploitasi sumber daya ini secara berlebihan, yang mengakibatkan penurunan volume tangkapan dan penurunan rata-rata ukuran kepiting yang tertangkap. Kelimpahan kepiting bakau sangat bergantung pada kesehatan hutan mangrove, dan setiap degradasi habitat ini dapat mempengaruhi populasi kepiting secara signifikan. Penelitian ini bertujuan untuk memperkirakan kelimpahan kepiting bakau dan menganalisis rasio jantan dan betina kepiting. Penelitian dilakukan pada bulan Februari 2024 dengan menggunakan metode purposive sampling. Observasi dimulai dengan menetapkan plot berukuran 100x20 meter, di mana kepiting ditangkap menggunakan perangkap yang disebut rakang. Hasil penelitian menunjukkan bahwa Stasiun Satu memiliki kelimpahan kepiting tertinggi, dengan 18 individu teridentifikasi. Stasiun Dua memiliki kelimpahan sebanyak 4 individu, dan Stasiun Tiga memiliki 3 individu. Rasio kepiting jantan dan betina di Stasiun Satu adalah 67% jantan dan 33% betina, sedangkan di Stasiun Dua rasio jantan terhadap betina adalah 75% dan 25%, dan di Stasiun Tiga rasio jantan terhadap betina adalah 67% dan 33%. Lebar kerapas berkisar antara 12,63 cm hingga 13,89 cm, dengan bobot kepiting bervariasi antara 344,33 gram dan 405,32 gram.
Sex ratio and size class of Trichopsis vittata in North Sumatra Province Sonia Ayu Indah Putri; Khairul; Hasmi Syahputra Harahap
JURNAL BIOS LOGOS Vol. 15 No. 1 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i1.58326

Abstract

Sumatra Island, especially North Sumatra Province, is a habitat for various freshwater fish species, including Trichopsis vittata. This study aimed to assess the sex ratio and size class distribution of T. vittata in three different locations: Tebing Linggahara Village, Bulungihit Village, and Silau Rakyat Village. Fish samples were caught using a serving hood, and total length and weight were measured. The results showed that the sex ratio of T. vittata was 1:1, indicating a balance of males and females in the population. The size distribution of fish was dominated by the rather large (46.27-52.27 mm) and small (34.25-40.25 mm) classes, indicating a diverse population growth. This condition shows that the recruitment process is still running well in nature. This study is expected to be the basis for the management and conservation of T. vittata in North Sumatra waters. It is recommended that further research be conducted on the ecological aspects of the habitat to support the conservation of this species

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