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Kota mataram,
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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 74 Documents
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Search results for , issue "Vol. 23 No. 2 (2023): April-June" : 74 Documents clear
The Effectiveness of CO2 Absorption Between Phytoplankton and Seagrass Beds in The West Sekotong Intertidal Zone of Lombok Island Sri Puji Astuti; Ika Puspita Dewi; Siti Rosidah; Sari Novida; Eka S Prasedya; Dining A Candri; Hilman Ahyadi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4769

Abstract

The increasing sea surface temperature could be approved CO2 levels on the coast. It has been assumed the primary productivity in the intertidal zone was to absorb CO2 from the water column for photosynthesis. In addition, the substrate floor has a potential source of CO2 from decomposers. Phytoplankton and seagrasses are the primary productivity in the intertidal zone. Both of them have chlorophyll, they maintain the CO2 as a carbon source to move the photosynthetic systems to develop the metabolism of the body's cells. The measurements were made of the leaves and rhizomes of all the seagrass species. The absorption process was clarified by measuring the growth rate, percent LOI, and percent carbon in the whole body of the Tetraselmis sp and Dunaliella sp, which were phytoplankton species isolated from seagrass ecosystems. Enhalus acoroides (Ea) had the highest carbon content.  On the other hand, Halophila ovalis and Halophila minor are the lowest carbon due to the distribution of Ea being the widest, they were found in all of the sampling areas. In addition, the factor that was supported was due to its high growth rate ability. Phytoplankton and seagrass on the coast of Sekotong Barat absorb CO2 in the water column and floor of the sediment (carbon sink). The presence of a different increase in carbon content between Tetrasemis sp and Dunaliella sp indicates, the species of phytoplankton respond differently to CO2 stress in the ocean.
The Quality of Compost Made From a mixture of Oyster Mushroom Baglog Waste and Cow Manure with the Addition of Dekomposer of Promi, MA-11, and BPF Muhammad Tirzady Prasetyo; I Gusti Made Kusnarta; Lolita Endang Susilowati; Mahrup
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4874

Abstract

:  This study aims to determine the quality of compost of a mixture of Oyster Mushroom Baglog waste and Cow Manure, using Promi (Promoting Microbes), MA-11 (Microba Alfaafa-11), and BPF (Phosphate Solubilizing Bacteria) decomposers. The experiment was arranged in a Completely Randomized Design (CRD), consisting of 4 ( Four) treatments: P0 = Baglog Oyster Mushrooms and Manure with a ratio = 1:2 without decomposers, P1 = Baglog Oyster Mushrooms and Manure with a ratio = 1:2 plus Promi, P2 =Baglog Oyster Mushrooms and manure with a ratio = 1:2 plus MA 11, P3=Baglog Oyster Mushrooms and Manure with a ratio of = 1:2 plus (BPF). Each treatment was repeated three times to obtain 12 experimental units. Parameters measured were: texture, pH, C-organic, N-total, C/N Ratio, Temperature (Temperature), Compost Color, and Compost Odor. The results showed that of the three decomposers used in this study, Promi was better at decomposing compose for two months. Promi is faster in changing the color of the compost to black, faster in reducing the temperature of the compost, has a pH of 6.81, and has the lowest organic C content and total N content of 0.94%. Of the three decomposers used in this study, Promi is better and faster for producing compost from a mixture of baglog and cow manure than the other treatments.
Response of Long Bean Vegetative Growth Due to Different Types of Mulch and Doses of Vermicompost Ahmad Raksun; Moh. Liwa Ilhamdi; I Gde Mertha; I Wayan Merta
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4888

Abstract

Long beans are plants of the Leguminoceae family that grow on vines. Long bean growth rate is influenced by various factors. Some of the external factors that determine the growth rate of long beans are the availability of nutrients and the application of mulch on agricultural land. Research on the vegetative growth response of long bean due to different types of mulch and doses of vermicompost fertilizer has been carried out in Mertak Umbak Village, Central Lombok. This study aims to analyze: (1) the vegetative growth response of long bean due to different types of mulch, (2) the vegetative growth response of long bean due to different doses of vermicompost, (3) the effect of a combination of types of mulch and vermicompost dosage on long bean growth. Research data were analyzed using Anova. The research results show that: (1) the vermicompost treatment significantly affected the increase in total leaf and plant height, but did not have a significant effect on the length and width of long bean leaves, (2) the application of mulch had a significant effect on all observed growth parameters, the highest growth parameters were observed in the application of plastic mulch black silver, (3) the interaction of mulch type and vermicompost dosage had a significant effect on plant height but did not have a significant effect on other growth parameters.
The Effect of Nano Technology Liquid Organic Fertilizer on The Growth of Red Spinach (Amaranthus tricolor L.) Cultivated Hydroponic Fadilla Sonia Putri; Resti Fevria; Des M; Irma Leilani Eka Putri
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4872

Abstract

Hydroponic cultivation with a wick system is one of the techniques used to increase the production of red spinach (Amaranthus tricolor L.). One of the weaknesses of hydroponics is the appearance of nutrient deposition. To reduce nutrient deposition in the wick system, it is necessary to apply nanotechnology to break down particles in the growth media and nutrients used so that the particles become smaller and are absorbed by plants more easily. Reduces precipitation in the wick system. This research was conducted using the RAL method (completely randomized design) which consisted of 6 treatments and 4 replications namely Control (Well Water + 100% AB Mix), P1 (Nano Technology Water + 100% AB Mix), P2 (Nano Technology Water + 25% POC+75% AB Mix), P3 (nano technology water+50% POC+50% AB Mix), P4 (nano technology water+75% POC+25% AB Mix), P5 (nano technology water+100% POC). The data obtained were analyzed with variance (ANOVA) followed by the DMRT test at 5% level. The results of this study were that the use of liquid organic fertilizer with nano technology had an effect on the growth of red spinach plants, this was seen in the highest plant in P4 with a plant height of 37.20 cm with the highest average number of leaves. at P4. Control and P1 with 28 leaves, the highest average leaf surface area was 19.95 cm2 in P3, the highest average wet weight was 2.85 g in the control, the highest average dry weight was in P1. 0.67g.
Organoleptic Value and Cholesterol Content of Shredded Meat of Rejected Layers Based on Immersion Level of Lime Juice (Citrus aurantifolia S.) Bulkaini Bulkaini; Djoko Kisworo; M. Alfatih; Akhyar Sutaryono; Maskur Maskur; I K Sumadi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.5071

Abstract

The production of shredded meat is an innovation to improve the structure of rejected layers of meat into processed products that are tender and low in cholesterol. This study aims to determine the effect of the immersion level of lime juice (Citrus aurantifolia S.). On the organoleptic value and cholesterol of shredded hens of rejected layers. The study was carried out using a randomized block design in the same direction with four treatments and tree replications, namely P0 = meat without soaking in Citrus aurantifolia S liquid; P1= meat soaked in 200 ml of Citrus aurantifolia S liquid, P2= meat soaked in 250 ml of Citrus aurantifolia S liquid and P3= meat soaked in 300 ml of Citrus aurantifolia S liquid. The research data were analyzed using the Analysis of Variance and continued with Duncan's Multiple Range Test using the SPSS 25 program. The results showed that soaking meat in Citrus aurantifolia S liquid in the production of shredded culled laying hens had no significant effect (p>0.05) on organoleptic quality (aroma, tenderness, taste, and acceptance), significantly (p<0.05) can improve the shredded structure according to the Indonesian National Standard (SNI: 1995). Conclusion: Soaking culled laying hens in Citrus aurantifolia S. liquid at a level of 200-300 ml of meat weight can produce shredded meat with a pleasant aroma, tender, tasty, soft, and acceptable to panelists with normal cholesterol levels, namely 10.00 - 46.66 mg/dl.
Morphometric Measurements of Several Body Parts of Laying Phase Arabian Chickens Mohammad Hasil Tamzil; Budi Indarsih; Syamsuhaidi Syamsuhaidi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4913

Abstract

The objective of this research was to investigate the body measurements of female Arabian chickens during the laying phase. The study utilized a sample of 95 female Arabian chickens, aged 94 weeks, which were housed in battery cages and utilized for egg production. Direct measurements were taken on each chicken, with variables including body weight, head circumference, beak length, comb height, neck length, back length, wing length, chest width, chest depth, upper thigh length, lower thigh length, shank length, shank circumference, the distance between the pubis bones, the distance between the pubic bone and sternum, and the length of the phalanges. The results of the study indicated that the body weight and morphometric measurements of the Arabian chickens were consistent with prior research. Furthermore, the size of the chest, back, neck, and wings displayed a significant correlation with body weight. Therefore, these measurements can be used as indicative markers for predicting the body weight of Arabian chickens.
Bioenergetic Performance of Bali Cows Employed in Ploughing Agricultural Land under Different Work Intensities Lalu Wira Pribadi; Muhammad Ashari; Lalu Ahmad Zaenuri; Lukman H Y
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4849

Abstract

The study was undertaken to investigate the use of cow as draught power in soil cultivation of the different type of farming field namely paddy farming field and dry farming field. Ten cows (5 working pairs) were randomly selected from each location so that the total number of obsevation cows was 20 (10 pairs). From each location, 45 breeders were randomly selected as respondents, so that a total of 90 respondents was observed intensively. The results showed, that the main motives recorded from this study are all respondents (100%), both paddy field farmers and dry field farmers, raising cattle for a source of labor and for savings. Most of the farmers raise cattle also for the purpose of being a source of fertilizer (88% of respondents). Cows in dry field farming worked with heigher intensity then those worked on paddy field farming areas. Cows were employed in average 48 days/season and only 4 hours/day, each under 49,60 kg droaugt load, 45 HP draught power, and 45,57 kg draught force, which indicate that the use of cows as a draught animal power in soil cultivation at the transmigration site in the West Nusa Tenggara area is within sub maximal exercise.
Comparison of Bactrocera Fruit Fly Captures Using Basil and Celery Leaf Extracts in Karang Bayan Plantation Ratna Trimilia Kurnia; I Putu Artayasa; Mohammad Liwa Ilhamdi; M. Yamin
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.5266

Abstract

The objective of this study was to assess the ratio of fruit fly captures using attractants derived from basil and celery extracts, as well as to examine the impact of attractant concentrations in basil and celery leaf extracts on fruit fly catches. Traps made from recycled mineral water bottles were baited with basil and celery extracts containing essential oils known for their attractiveness to fruit flies. The findings indicated that traps using basil extract captured a greater number of fruit flies compared to those with celery extract. Furthermore, varying concentrations of the attractants significantly influenced fruit fly captures. The highest yield of fruit fly captures was observed at a 20% concentration of basil extract. The 20% concentration of basil extract had a higher number of fruit fly captures compared to the 10% and 30% basil extract concentrations, as well as the 10%, 20%, and 30% celery extract concentrations. The study results demonstrated a significant difference in the number of fruit fly captures between basil and celery extracts, with the highest number of captures observed with a 20% concentration of basil extract.
Analysis Existing Conditions of Octopus (Octopus vulgaris) in Pandanan Beach, Malaka Village, North Lombok Sahrul Alim; Muhammad Marzuki; Rusmin Nuryadi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.5278

Abstract

Octopus fishing activities are increasingly being carried out by local fishermen making the variety of catches uncontrollable. It is feared that this diversity of catches will affect the biological condition of the octopus, which will lead to a decrease in the catch of fishermen. This study aims to: (1) determine growth patterns, body shape, age group, condition factors, spawning/maturity fit and catchability in octopus fisheries management, (2) biological dimensions of octopus fisheries management, and (3) identify attributes / lever indicators to increase the index value and sustainability status of the biological dimensions of octopus fisheries management. The results showed that the growth patterns of octopuses landed on Pandanan Beach, North Lombok Regency, were negative allometric with a b value of 2.1600. Meanwhile, octopus body shape is in the less flattened category with a condition factor (K) value of 1.85, with 2 age groups, namely the first age group with a length range of 24 cm - 48 cm and the second age group with a length range of 49 cm - 68 cm. Meanwhile, the number of octopuses worth catching was 238 which weighed > 320 grams, and 2 octopuses that were not yet fit to catch weighed < 320 grams. The sustainability status of octopus management from the biological dimension obtained a value of 52.34% with a fairly sustainable status. The attributes that need priority attention are stock enrichment and range collapse. Changes to these two attributes will affect the increase or decrease in the value of the biological dimension sustainability index.
Macrozoobenthos Diversity as A Bioindicator of Water Quality in River Sesaot Village Narmada West Lombok Ernawati Ernawati; Immy Suci Rohyani; Rifki Hidayatul Ardi; Annisa Firda Wahyuningsih; Baiq Hana Tasya Muflihah; Rizki Aditia Zubair
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4860

Abstract

Sesaot River is a river located in Narmada, West Lombok. The Sesaot River has been widely used by the surrounding community for their agricultural, plantation and daily activities. The high activity of the people around the river causes a decrease in the quality of river water. Macrozoobenthos is a bioindicator that can be used to describe a water's air quality. The purpose of this research is to examine the water quality of the Sesaot River utilizing macrozoobenthos as a bioindicator. The study was carried out at three different locations along the Sesaot River: upstream, middle, and downstream. At each observation site, macrozoobenthos ecological study and measurements of river water physical and chemical parameters were performed. According to observations, the pH, DO, and TDS of river water remain within the range of acceptable environmental quality standards. The macrozoobenthos found in the Sesaot Narmada river consist of 3 classes, 8 families and 8 species. Gastropoda, Mollusca, and Insecta are the third class discovered. The macrozoobenthic diversity index values discovered ranged from 0.8 to 1.35. Based on these findings, the macrozoobenthos diversity at the three locations is low. The uniformity index values obtained at the three stations ranged from 0.03 to 0.07, indicating that the distribution of individuals was unequal and unbalanced. At the three stations, the dominance index ranged from 0.27 to 0.55. Based on the findings, it is possible to conclude that the water quality of the Sesaot Narmada river is moderately to badly polluted.

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