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Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences
Published by Universitas Brawijaya
ISSN : 20875517     EISSN : 25274376     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
The Journal of Tropical Life Science (JTLS) provides publication of full-length papers, short communication and review articles describing of new finding or theory in living system, cells and molecular level in tropical life science and related areas. The journal publishes articles that report novel findings of wide Tropical Life system phenomenon in the areas of biodiversity, agriculture, fisheries, health, husbandry, forestry and environmental technology. JTLS has 1 volume with 3 issues per year.
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Articles 11 Documents
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Search results for , issue "Vol 3, No 3 (2013)" : 11 Documents clear
The Effectiveness o f Entomopathogenic Fungi Beauveria bassiana with the Addition of Insect Growth Regulator Lufenuron f or Controlling Bactrocera carambolae Hadi, Mochammad Syamsul; Himawan, Toto; Aini, Luqman Qurata
Journal of Tropical Life Science Vol 3, No 3 (2013)
Publisher : Journal of Tropical Life Science

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Abstract

The study of the effectiveness of entomopathogenic fungus Beauveria bassiana (Bals) Vuill. with the addition of an insect growth regulator (IGR) lufenuron to control the fruit fly Bactrocera carambolae (Drew and Hancock) (Diptera: Tephritidae) was conducted at the Laboratory of Toxicology and Laboratory of Entomology, Department of Plant Pests and Diseases, Faculty of Agriculture, University of Brawijaya Malang from March 2012 until December 2012. This study examined the effect of lufe-nuron to the development and sporulation of B. bassiana and the effectiveness of the fungus B. bassiana in combination with several concentrations of lufenuron (0.5, 1, 1.5 mL/L) on the mortality of fruit fly larvaB. carambolae. The results showed that the addition of lufenuron at the concentration of 1 mL/L could significantly increase the sporulation of B. bassiana. The addition of B. bassiana at 108 spores/mL combined with lufenuron at the concentration of 1 mL/L applied to compost pupation medium of larva of B. carambolae is significantly able to suppress the formation of the fruit fly pupa and imago of B. carambolae
Do fish have rights in artisanal fisheries? Mustapha, Moshood
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Artisanal fishers in developing world are unaware that fish are capable of suffering or discomfort, though researches have shown that fish do feel pain. Five fish welfare domains have been identified which constitute their rights in their environment. The needs of wild fish are usually provided in their natural, undisturbed and unperturbed aquatic environment, of which the fish will prefer. However, various anthropogenic activities by humans (including artisanal fisheries itself) and some natural perturbations in the watershed, riparian zone, water body of the fish habitat and on the fish tend to take away these needs thereby compromising the fish welfare. These activities include environmental degradation, boat/canoe building, use of motorized engine boats/canoes, use of active and passive fishing gears, obnoxious cultural, religious and social fishing practices, fish harvesting, handling and processing among others. One way to understand the welfare needs of an individual fish is to understand its biology. Poor welfare conditions could then be assessed by how far the individual fish has deviated from the normal conditions. Non-intrusive signs based on the health, behavior, morphological anomalies, swimming, reduction in population and growth, outbreak of parasitic infections, injuries and loss of condition can be used to assess fish whose welfare has been compromised. Artisanal fishers should not only be concerned with catch, but, also the welfare of the fish being caught. This is because if the welfare of the fish is compromised, it is going to definitely affect the catch. As indispensable as fish is to humans, humans should not derive its pleasure at the expense of fish suffering. Human activities that impinge on the welfare of wild fish may not necessarily be stopped, but at least minimized in order to have continued sustainable artisanal exploitation of the fisheries. Keywords: welfare, artisanal fisheries, developing world, stress, behaviour, feel, habitat
The assessment of land exploitation by enumerating microbial population: Case study in several locations at Dieng Plateau Sumarsih, Sri; Virgawati, Sari
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Agricultural intensification program in Indonesia which is carried out by using high yield variety, high chemicals use and soil disturbances tends to trigger land exploitation. Land exploitation, performed without considering the lands capability can generate degradations on the land itself. Various methods have been used to determine land exploitation level, including evaluation of soil microbe resources as on soil component. This research is aimed to assess land exploitation level, based on the amount of microbial population. The result of this research is expected to add the soil quality standard criteria. In the case study performed in Dieng plateau, representative soil sampling method was used. The amount of microbial population can be enumerated using plating and MPN method. Based on nutrient availability to indicate the soil biological characteristics, the soil under the trees, shrub, and Colocasia were classified as “below normal”, and the soil under the grass, tobacco, cabbage and potato were classified as normal. It shows that the land exploitation at the agricultural soils were still in the range of its land capability.
The Effect of Calcusol™ to the Plasma Free Radical and Serum Creatinin in Mus Musculus Nephrolithiasis Model Rosyidah, A’liyatur; Widyarti, Sri; Rahayu, Sri
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Morphometric Analysis of Local Fish from Banyu Biru Lake, Pasuruan Compared with Closely Related to Tor spp. from Indonesia Rahayu, Dwi Anggorowati; Nugroho, Endik Deni; Azrianingzih, Rodliyati; Kurniawan, Nia; Haryono, Haryono
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Banyu Biru is a natural lake in Sumber Rejo Village, Winongan District, Pasuruan Regency. There are local fishes in the Banyu Biru called sengkaring and tambra. Biological studies on these fishes are not so much known. This study aims to identify the relationship of sengkaring and tambra compared with the related species ( Tor spp.: Cyprinidae) from Indonesia. Morphometric analysis can be used to clustering and understanding the relationship of taxa. Each species represents 17 specimens (Tambra and Sengkaring) and measured 22 characters (in mm) by using digital caliper and the additional characters (21 characters). The canonical, clustering, similarity and distances were used. Based on morphometric measurements, sengkaring and tambra had similarity with the four species found in Indonesia. Commonly, the population of Sengkaring and Tambra was critical; therefore, studies needed to be carried out to support conservation.
Aspleniaceae of Tandikek Mountain West Sumatra Mildawati, Mildawati; Arbain, Ardinis; Fitrah, Hary
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Research on ferns of Aspleniaceae family of Tandikek Mountain in West Sumatra, Indonesia has been done through a survey method and direct collection in the field, followed by a study at Herbarium of ANDA (Andalas University). Eleven species consisting of Asplenium affine, A. batuense, A. belangeri, A. pellucidum, A. phylitidis, A. robustum, A. salignum, A. scalare, A. tenerum, A. unilateralis, and Asplenium sp1. have been found as part of the Asplenium genus. The species of Asplenium genus have been obtained from the elevation of 1231 - 2336 meter above the sea level.Keywords: Aspleniaceae, Tandikek ountain, West Sumatra
Spatial Distribution and Genetic diversity of Tripneustes gratilla in Ambon Island Silahooy, Veince Benyamin; Hakim, luchman; Toha, Hamid; ., widodo
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Tripneustes gratilla an important ecological role in various habitats because T. gratilla is directly or indirectly recycling key from the nutrients in the waters of Ambon Island. Ambon Island has a distinctive topography, thus causing inhibition of water exchange period naturally in Ambon Bay and feared to complicate the exchange of genes between populations thus causing inbreeding. In addition the increasing environmental pollution can narrow the habitat of Tripneustes gratilla. Therefore, this study aims to determine the spatial distribution and genetic diversity of sea urchins (Tripneustes gratilla) on Ambon island based on cytochrome c oxidase subunit 1 gene. Alignment results showed the presence of genetic variation of T. gratilla on the Ambon island. This is shown in several polymorphic base where there has tranversi experience, transition, and insertion. COI gene sequence similarity values of T. gratilla on Ambon island is around 98.4 to 100%. Distribution of T. gratilla population found on Ambon island generally have a relatively small number of individuals. From four locations that just only one location have large enough number of individuals. However, the results of genetic analysis using COI gene showed the presence of genetic closeness between T. gratilla despite located in different locations.
Composition and Diversity of Soil Arthropods of Rajegwesi Meru Betiri National Park Zayadi, Hasan; Hakim, Luchman; Leksono, Amin Setyo
Journal of Tropical Life Science Vol 3, No 3 (2013)
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Abstract

Meru Betiri National Park (MBNP) is one of the nature conservation area thathas the potential of flora, fauna, and ecosystems that could develop as a nature-based tourism attraction. The existence of certain indicator species was related to estimation of stress level and disturbance on ecosystem stability for making strategic decisions about the restoration in this area. One of the important indicator species at forest ecosystem were soil arthropods. Aim this research were analyzed composition and diversity of soil arthropods at Rajegwesi, MBNP areas. The methods in this research used pitfall trap, measurement of distribution structure and soil arthropods composition based on the Shannon - Wiener index, Morisita similarity index and Importance Value Index (IVI). The number of families and individuals of soil arthropods found in the coastal area of Rajegwesi consists of 10 order with 21 families (702 individual). The number of individuals of the order Hymenoptera, Coleoptera, Collembola and Araneida was more widely found. Soil arthropods diversity index on each land use indicated that soil arthropod diversity in these areas were moderate. Soil arthropod community of orchards and forest had a similarity of species composition, whereas soil arthropod community of savanna had a similarity of species composition with paddy fields.
Pollen Morphology and Sucrose Giving on Stigma Relation with Incompability of Sweetpotato (Ipomoea batatas (L.) L.) Susanto, Febri Adi; Sulasmi, Eko Sri; Rahayuningsih, St A
Journal of Tropical Life Science Vol 3, No 3 (2013)
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The purpose of the research is to examine how to increase cross and self-pollination by solving incompatibility of sweet potato mechanism through sucrose giving on stigma and pollen nuclei checking. Sucrose in different concentration is giving to stigma. Stigma is excised and lubricated with sucrose before crossing and the pedicel is lubricated with 2,4D 100 ppm in lanolin. The result shows both varieties have stigma position longer than the anthers do. Papua Solosa has 94.7% anther dehiscence, 70.25% pollen viability, while MSU 03028-10 has 87.3% anther dehiscence and 87.84% pollen viability. Both of these varieties have receptive stigma. Sucrose level in compatible pollination is lower than in incompatible pollination. Sugar in 50 ppm concentrate can increase fruit setting in self-pollination of Papua Solosa variety from 0% to 70%, 0% to 60% in MSU 03028-10, and 10% to 90% in crossing of Papua Solosa>Keywords : Pollen Morphology, Sucrose Giving, Incompatibility of Sweet Potato
APPLICATION OF WATER QUALITY AND ECOLOGY INDICES OF BENTHIC MACROINVERTEBRATE TO EVALUATE WATER QUALITY OF TERTIARY IRRIGATION IN MALANG DISTRICT Kartikasari, Desi
Journal of Tropical Life Science Vol 3, No 3 (2013)
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This research aims to determine the water quality of tertiary irrigation in several subdistricts in Malang, namely Kepanjen, Karangploso, and Tumpang. The water quality depends on the water quality indices (National Sanitation Foundations-NSF Indices and OConnors Indices based on variables TSS, TDS, pH, DO, and Nitrate concentrate) and ecological indices of benthic macroinvertebrate (Diversity Indices Shannon-Wiener, Hilsenhof Biotic Indices-HBI, Average Score per Taxon-ASPT which is calculated by Biological Monitoring Working Party-BMWP, Ephemeroptera Indices, Plecoptera, Trichoptera-EPT). Observation of the physico-chemical water quality and benthic macroinvertebrate on May 2012 to April 2013. The sampling in each subdistrict was done at two selected stations in tertiary irrigation channel with three plot at each station. The data of physico-chemical quality of water were used to calculate the water quality indices, while the benthic macroinvertebrate data were used to calculate the ecological indices.The research findings showed that 27 taxa of benthic macroinvertebrates belong 10 classes were found in the three subdistrict. The pH, DO, Nitrate, TSS and TDS in six tertiary irrigation channels in Malang still met the water quality standards based on Government Regulation No.82 of 2001 on Management of Water Quality and Water Pollution Control Class III. Based on NSF-WQI indices and O'Connor's Indices, water qualities in these irrigation channels were categorized into medium or moderate (yellow) to good (green) category. However, based on benthic macroinvertebrate communities which was used to determine the HBI, the water quality in the irrigation channels were categorized into the air category (fairly significant organic pollution) to fairly poor (significant organic pollution), while based on the value of ASPT, the water were categorized into probable moderate pollution to probable severe pollution. The irrigation water which was categorized into good by WQI was consistently included into fair based on HBI and probable moderate pollution based on ASPT. Key words: ecological index, water quality index, benthic macroinvertebrate, Malang irrigation channel

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