scholarly journals Faktor Biotik dan Abiotik pada Tempat Perkembangbiakan Anopheles spp. di Desa Gunung Jati, Kecamatan Pagedongan, Banjarnegara, Provinsi Jawa Tengah

2018 ◽  
pp. 153-162
Author(s):  
Dyah Widiastuti ◽  
Anggun Paramita Djati ◽  
Nova Pramestuti
Keyword(s):  
Light Intensity ◽  
Water Temperature ◽  
Environmental Conditions ◽  
Water Samples ◽  
Endemic Area ◽  
Abiotic Factors ◽  
Optimum Conditions ◽  
Malaria Endemic Area ◽  
Breeding Sites ◽  
Larvae Density

Malaria transmission in Gunung Jati Village, Banjarmegara needs serious attention because this village is malaria endemic area. This study aimed to investigate the biotic and abiotic environmental conditions at Anopheles spp. breeding sites in Gunung Jati village, Banjarnegara. Anopheles spp. larvae collection, measurement of abiotic factors and observation of microbiota on water samples were conducted on May 2015. Anopheles spp. larva was found  in puddles on the banks of the river with larvae density was 5 larvae per dip. Water temperature conditions in all breeding sites ranged from 26-32 oC, the degree of acidity was neutral, with varying light intensity. Synedra are the most commonly found algae from all observed breeding sites. The environmental conditions were in accordance with the optimum conditions that support the development of Anopheles spp. larvae

scholarly journals Characteristics Environmental and Anopheles Larva Species In High And Low Clinical Malaria Cases In The Landak District of West Kalimantan Province

2021 ◽  
Vol 9 (3) ◽  
pp. 187
Author(s):  
Khairul Bariyah ◽  
Budi Utomo ◽  
Sri Subekti ◽  
Florentina Sustini ◽  
Juniastuti Juniastuti ◽  
...  
Keyword(s):  
Water Temperature ◽  
Endemic Area ◽  
Sun Exposure ◽  
Sampling Technique ◽  
Chemical Characteristic ◽  
Malaria Endemic Area ◽  
Cross Sectional ◽  
Breeding Sites ◽  
West Kalimantan ◽  
Water Ph

Malaria remains a health problem in Indonesia. West Kalimantan is a malaria endemic area with high and lowincidence. Landak District is one of the malaria endemic area. Malaria cases were found in the areas around illegalgold mining and oil palm plantations. The aims of this study were to describe the characteristics of the breeding sitesand species of Anopheles larvae found in high malaria cases area, namely Amboyo Utara Village and low clinicalmalaria cases, area namely Mandor Village. This research is a descriptive research with cross sectional design. Thesamples were Anopheles larvae collected with Accidental sampling technique in the breeding sites. Environmentalcharacterization of breeding sites were physical characteristic including water temperature and sun exposure,chemical characteristic including water pH and salinity, and biological characteristics including water biota. Theresults of this study ware environmental characteristics that have the potential to breed Anopheles mosquitoes inAmboyo Utara Village, including water temperature 26-30C, shandy, water pH 5.0-7.6, salinity 0.2-1.0 ppt, biotaswater hyacinth, grass and tadpole. The Mandor village, water temperature 29-30 ºC, shandy, pH of 6.9-8.0, salinity of0.5 ppt, water biota grass. Anopheles species found in Amboyo Utara village were larvae of An. vagus (94.30%), An.tessellatus (3.42%), An. subpictus (1.62%), An. indefinitus (0.81%) and An. maculatus (0.81%). Characteristics ofbreeding sites in Mandor village were larvae of An. maculatus (11.11%), An. subpictus (3.70%), and An. vagus(85.18%). The conclusion of this study was that di erent species found at breeding sites with di erent environmentalcharacteristics in both high and low malaria areas in Landak District, West Kalimantan Province.

scholarly journals Drift of ichthyoplankton in two channels of the Paraná River, between Paraná and Mato Grosso do Sul states, Brazil

1999 ◽  
Vol 42 (1) ◽  
Author(s):  
Andréa Bialetzki ◽  
Paulo Vanderlei Sanches ◽  
Maristela Cavicchioli ◽  
Gilmar Baumgartner ◽  
Ricardo Pereira Ribeiro ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Water Temperature ◽  
Water Samples ◽  
Environmental Variables ◽  
Paraná River ◽  
Mato Grosso ◽  
Parana River ◽  
The Right ◽  
Mato Grosso Do Sul ◽  
Larvae Density

Analysis of drift of ichthyoplankton in two channels in the River Paraná, Brazil, were made. Sampling was undertaken from October 1995 to April 1996 during nychthemeral cycles. Water samples were collected to determine several environmental variables. Eggs densities largely differed to layers, times of day and months. In both the channels, highest occurrence of eggs was detected between January and March; greater concentrations at the bottom, during night. With regard to larvae, densities were significantly different in channels, times of days and months. Maximum occurrences were seen in the right channel, in both layers, with largest capture between January and March. Surface of the both channels presented highest density of larvae during night. Water temperature, electrical conductivity and flux velocity were different in the two channels, however, these variables and larvae density didn't showed correlations. This indicates that there was another possible factor, might be influencing the distribution of ichthyoplankton.

GAMBARAN INDEKS LARVA AEDES AEGYPTI DI BUFFER WILAYAH KERJA BANDARA SEPINGGAN BALIKPAPAN

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Abdurrakhman abdurrakhman Abdurrakhman
Keyword(s):  
Aedes Aegypti ◽  
Buffer Zone ◽  
Chi Square ◽  
Cross Sectional ◽  
Breeding Sites ◽  
Dengue Disease ◽  
Vector Borne Diseases ◽  
Transportation Equipment ◽  
Chi Square Test ◽  
Larvae Density

ABSTRACT : The House index and Container Index in the buffer area of ​​the working area of ​​Balikpapan Sepinggan Airport is still above 1%, so the potential for the spread of dengue disease. Mobilization of people, goods and transportation equipment will increasingly affect the transmission of disease in ports and airports, especially for vector-borne diseases. This study aims to analyze the risk factors associated with larvae density of Aedes aegypti and describe the larvae index in the buffer zone of the Sepinggan Balikpapan Airport This study was a descriptive study with a cross sectional design. The sample in this study was 121 houses with a proportionate stratified random sampling, the research location was in the buffer zone of Sepinggan Balikpapan Airport in November 2018. The variables studied were houses with positive larvae containers, breeding sites and PSN behavior and larvasidation. The data was analyzed using the chi square test. There was a relationship between houses with larvae positive Aedes aegypti, behavior of Mosquito Nest Eradication (PSN) and larvasidation with larvae density of Aedes aegypti but not for breeding sites (p = 0.00 and 95% CI = 0.64), and   (p = 0.00 and 95% CI = 0.34). The description of several Aedes aegypti larvae index, namely House Index (HI) = 57.02%, Container Index (CI) = 24.36%, Bruteau Index (BI) = 148.76, and Flick Free Numbers (ABJ) = 42.98 %. Houses with larvae of Aedes aegypti larvae and PSN and larvasidation behavior were associated with larvae density of Aedes aegypti. The index of HI, CI and BI larvae is of high value so there is a risk of DBD transmission

scholarly journals Long-term impact of childhood malaria infection on school performance among school children in a malaria endemic area along the Thai–Myanmar border

2015 ◽  
Vol 14 (1) ◽  
Author(s):  
Nutchavadee Vorasan ◽  
Wirichada Pan-Ngum ◽  
Podjanee Jittamala ◽  
Wanchai Maneeboonyang ◽  
Prasert Rukmanee ◽  
...  
Keyword(s):  
School Performance ◽  
School Children ◽  
Malaria Infection ◽  
Endemic Area ◽  
Malaria Endemic Area ◽  
Long Term Impact ◽  
Childhood Malaria

scholarly journals Lagged recovery of fish spatial distributions following a cold-water perturbation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. D. Robertson ◽  
J. Gao ◽  
P. M. Regular ◽  
M. J. Morgan ◽  
F. Zhang
Keyword(s):  
Water Temperature ◽  
Species Distribution ◽  
Environmental Conditions ◽  
Cold Water ◽  
Heat Waves ◽  
Rapid Change ◽  
Nonlinear Effects ◽  
Spatial Distributions ◽  
Spatiotemporal Model ◽  
Yellowtail Flounder

AbstractAnomalous local temperature and extreme events (e.g. heat-waves) can cause rapid change and gradual recovery of local environmental conditions. However, few studies have tested whether species distribution can recover following returning environmental conditions. Here, we tested for change and recovery of the spatial distributions of two flatfish populations, American plaice (Hippoglossoides platessoides) and yellowtail flounder (Limanda ferruginea), in response to consecutive decreasing and increasing water temperature on the Grand Bank off Newfoundland, Canada from 1985 to 2018. Using a Vector Autoregressive Spatiotemporal model, we found the distributions of both species shifted southwards following a period when anomalous cold water covered the northern sections of the Grand Bank. After accounting for density-dependent effects, we observed that yellowtail flounder re-distributed northwards when water temperature returned and exceeded levels recorded before the cold period, while the spatial distribution of American plaice has not recovered. Our study demonstrates nonlinear effects of an environmental factor on species distribution, implying the possibility of irreversible (or hard-to-reverse) changes of species distribution following a rapid change and gradual recovery of environmental conditions.

Health Seeking Behavior after Fever Onset in a Malaria-Endemic Area of Malawi

2009 ◽  
Vol 81 (6) ◽  
pp. 935-943 ◽  
Author(s):  
Ruben E. Mujica Mota ◽  
Antonieta Medina Lara ◽  
Esthery D. Kunkwenzu ◽  
David G. Lalloo
Keyword(s):  
Endemic Area ◽  
Malaria Endemic Area ◽  
Health Seeking ◽  
Health Seeking Behavior ◽  
Fever Onset ◽  
Seeking Behavior

Annual variations in body-size spectra of planktonic ciliate communities and their relationships to environmental conditions: a case study in Jiaozhou Bay, northern China

2012 ◽  
Vol 93 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Henglong Xu ◽  
Yong Jiang ◽  
Wei Zhang ◽  
Mingzhuang Zhu ◽  
Khaled A. S. Al-Rasheid ◽  
...  
Keyword(s):  
Body Size ◽  
Water Temperature ◽  
Environmental Conditions ◽  
Jiaozhou Bay ◽  
Northern China ◽  
The Body ◽  
The Yellow Sea ◽  
Size Spectra ◽  
Annual Variations ◽  
Planktonic Ciliate

The annual variations in body-size spectra of planktonic ciliate communities and their relationships to environmental conditions were studied based on a 12-month dataset (June 2007 to May 2008) from Jiaozhou Bay on the Yellow Sea coast of northern China. Based on the dataset, the body sizes of the ciliates, expressed as equivalent spherical diameters, included five ranks: S1 (5–35 μm); S2 (35–55 μm); S3 (55–75 μm); S4 (75–100 μm); and S5 (100–350 μm). These body-size ranks showed a clear temporal succession of dominance in the order of S2 (January–April) → S1 (May–July) → S4 (August–September) → S3 (October–December). Multivariate analyses showed that the temporal variations in their body-size patterns were significantly correlated with changes in environmental conditions, especially water temperature, salinity, dissolved oxygen concentration (DO) and nutrients. In terms of abundance, rank S2 was significantly correlated with water temperature, DO and nutrients, whereas ranks S4 and S5 were correlated with the salinity and nutrients respectively (P < 0.05). These results suggest that the body-size patterns of planktonic ciliate communities showed a clear temporal pattern during an annual cycle and significantly associated with environmental conditions in marine ecosystems.

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