scholarly journals Spot Survei Entomologi Malaria di Daerah Epidemi di Kabupaten Kotabaru Kalimantan Selatan

2021 ◽  
Vol 20 (2) ◽  
pp. 82-89
Author(s):  
Muhammad Rasyid Ridha ◽  
Budi Hairani ◽  
Abdullah Fadilly
Keyword(s):  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Mosquito Species ◽  
Breeding Habitat ◽  
Malaria Vectors ◽  
Aedes Vexans ◽  
Culex Tritaeniorhynchus ◽  
Breeding Habitats ◽  
Mosquito Breeding ◽  
Suitable Area

Latar belakang: Indonesia menargetkan eliminasi malaria pada tahun 2030. Kabupaten Kotabaru merupakan daerah endemis malaria. Salah satu Desa Endemis yaitu Desa Batang Kulur yang terjadi peningkatan kasus signifikan sebanyak 12 kasus pada Bulan Maret 2019. Tujuan penelitian ini adalah untuk mengukur indeks entomologi, karakteristik, dan lingkungan habitat perkembangbiakan vektor malaria di Desa Batang Kulur.Metode: Kegiatan yang dilakukan yaitu penangkapan nyamuk dengan umpan orang, identifikasi dan pembedahan ovarium nyamuk untuk diketahui parusitas (pernah/tidak pernah bertelur) yang digunakan untuk memprediksi umur  dan survei habitat perkembangbiakan vektor malaria.Hasil: Spesies dan komposisi nyamuk yang ditemukan yaitu Aedes vexans, Aedes albopictus, Culex quinquefasciatus, Culex tritaeniorhynchus, Culex vishnui, Mansonia dives dan Anopheles leucosphyrus. Kepadatan nyamuk Anopheles leucosphyrus 0,30 dan kepadatan permalam yaitu 2,67 dengan peluang hidup perhari 95% serta perkiraan umur populasi 21,54 hari. Fluktuasi Anopheles leucosphyrus mulai muncul pada jam 22.00 dan kembali meningkat pada jam 04.00. Tempat perindukan nyamuk yang ditemukan yaitu Habitat perkembang biakan nyamuk yang ditemukan ada 2 yaitu kolam dan mata air.Simpulan: Terdapat habitat perkembang biakan yang mendukung, peluang hidup 95% dan potensi umur nyamuk lebih dari masa inkubasi Plasmodium sehingga di Desa Batang Kulur merupakan daerah yang cocok untuk perkembangan vektor malaria. ABSTRACT Title: Investigation of Spot Survey of Malaria Entomological in Epedemic Areas in Kotabaru District, South KalimantanBackground: Indonesia is targeting malaria elimination by 2030. Kotabaru Regency is a malaria endemic area. One of the endemic villages, Batang Kulur Village, saw a significant increase of 12 cases in March 2019. The purpose of this study was to measure the entomological index, characteristics, and environment of the malaria vector breeding habitat in Batang Kulur Village.Method: Activities carried out include catching mosquitoes by baiting people, telephone and surgery for the mosquito ovaries to determine of parity (parous /nullyparous) which are used to predict age and survey the breeding habitats for malaria vectors.Result: The mosquito species and composition found were Aedes vexans, Aedes albopictus, Culex quinquefasciatus, Culex tritaeniorhynchus, Culex vishnui, Mansonia dives and Anopheles leucosphyrus. The density of the Anopheles leucosphyrus was 0.30 and the per night density was 2.67 with a 95% chance of survival per day and an estimated population age of 21.54 days. Anopheles leucosphyrus fluctuations began to appear at 22.00 and again increased at 04.00. The mosquito breeding places found were 2 mosquito breeding habitats, namely ponds and springs.Conclusion: There is a suitable breeding habitat, a 95% chance of survival and a potential age of mosquitoes that is more than the plasmodium incubation period so that in Batang Kulur Village is a suitable area for the development of malaria vectors. 

scholarly journals Naturally Occurring Microbiota Associated with Mosquito Breeding Habitats and Their Effects on Mosquito Larvae

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
H. A. K. Ranasinghe ◽  
L. D. Amarasinghe
Keyword(s):  
Abiotic Factors ◽  
Mosquito Species ◽  
Breeding Habitat ◽  
Larval Abundance ◽  
Mosquito Larvae ◽  
Natural Habitats ◽  
Individual Fitness ◽  
Naturally Occurring ◽  
Breeding Habitats ◽  
Mosquito Breeding

Immature mosquitoes are aquatic, and their distribution, abundance, and individual fitness in a particular breeding habitat are known to be dependent on mainly three factors: biotic factors, abiotic factors, and their interaction between each other and with other associated taxa. Mosquito breeding habitats harbor a diversified naturally occurring microbiota assemblage, and the biota have different types of interactions with mosquito larvae in those habitats. Those interactions may include parasitism, pathogenism, predation, and competition which cause the mortality of larvae, natural reduction of larval abundance, or alterations in their growth. Many microbiota species serve as food items for mosquito larvae, and there are also some indigestible or toxic phytoplanktons to larvae. However, when there is coexistence or mutualism of different mosquito species along with associated microbiota, they form a community sharing the habitat requirements. With the available literature, it is evident that the abundance of mosquito larvae is related to the densities of associated microbiota and their composition in that particular breeding habitat. Potential antagonist microbiota which are naturally occurring in mosquito breeding habitats could be used in integrated vector control approaches, and this method rises as an ecofriendly approach in controlling larvae in natural habitats themselves. To date, this aspect has received less attention; only a limited number of species of microbiota inhabiting mosquito breeding habitats have been recorded, and detailed studies on microbiota assemblage in relation to diverse vector mosquito breeding habitats and their association with mosquito larvae are few. Therefore, future studies on this important ecological aspect are encouraged. Such studies may help to identify field characteristic agents that can serve as mosquito controlling candidates in their natural habitats themselves.

scholarly journals Larval breeding habitats and ecological factors influence the species composition of mosquito (Diptera : Culicidae) in the parks of Dhaka city, Bangladesh

2018 ◽  
Vol 45 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Afroza Sultana ◽  
Sharmin Hasan ◽  
Mosharraf Hossain ◽  
Abdul Alim ◽  
Mohammad Al Mamun ◽  
...  
Keyword(s):  
Mosquito Control ◽  
Mosquito Species ◽  
Ecological Factors ◽  
Control Program ◽  
Breeding Habitat ◽  
Coconut Shell ◽  
Larval Abundance ◽  
Tree Hole ◽  
Breeding Habitats ◽  
Tree Holes

Mosquito larval ecology is prerequisite for determining the larval abundance and species assemblage in mosquito control program. The study explored the association of five mosquito species with their breeding habitat diversity and species distribution in three selected parks from May to October, 2015. A total of 3217 mosquito larvae were reported from six breeding habitats, namely tree hole, leaf axils, water bottle, tire, drain and coconut shell. The frequency of the three species (Ae. aegypti, Ae. albopictus and Ar. subalbatus) coexistence was higher in tree holes (82.4%) than that of the other coexisting species. Pearson Chi-square result revealed that the association of species was significantly dependent on the breeding habitats. ANOVA further suggested that mosquito density varied across habitats where among the highest density of Cx. quinquefasciatus (3.87 ± 0.22) found in drain, followed by both Ae. albopictus (2.02 ± 0.17) and Ar. subalbatus (0.50 ± 0.09) in tree holes and Ae. aegypti (1.25 ± 0.23) in coconut shell. Cx. tritaeniorhynchus occurred in drain with the least observed density (0.03 ± 0.01). CCA results suggested that Aedes species were likely preferred to oviposit in shaded habitats where pH was associated with Ae. albopictus and dissolved oxygen was with Ae. aegypti and Ar. subalbatus. Culex species were positively associated with the habitats characterizing muddy bottom and emerging vegetation but not with any of the physico-chemical parameters. These findings concluded that ecological factors influence mosquito species to favor their breeding habitats can be helpful in controlling targeted vector species as well as the mosquito borne diseases.Bangladesh J. Zool. 45(2): 111-122, 2017

scholarly journals A Comprehensive Analysis on Abundance, Distribution, and Bionomics of Potential Malaria Vectors in Mannar District of Sri Lanka

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Nayana Gunathilaka ◽  
Menaka Hapugoda ◽  
Rajitha Wickremasinghe ◽  
Wimaladharma Abeyewickreme
Keyword(s):  
Waste Water ◽  
Sri Lanka ◽  
Current Knowledge ◽  
Breeding Habitat ◽  
Control Measures ◽  
Malaria Vectors ◽  
Detailed Knowledge ◽  
Lagoon Water ◽  
Breeding Habitats ◽  
The Mean

Background. A detailed knowledge of the distribution of the malaria vectors in Mannar district of Sri Lanka has not been studied after 1927. Past records indicated the presence of only seven species of anophelines, namely, An. culicifacies, An. subpictus, An. barbirostris, An. peditaeniatus, An. nigerrimus, An. Jamesii, and An. maculatus. There have been many changes in terms of distribution of Anopheles in the district over time. Methods. Entomological surveillance was conducted on a monthly basis, comprising indoor hand collection, window trap collection, cattle-baited net collection, cattle-baited hut collection, and larval survey from June 2010 to June 2012 in 12 study areas under three entomological sentinel sites. The relationship between seven abiotic variables of the breeding habitats was measured. Pearson’s correlation coefficients were used to determine the associations between climatic variables and anopheline densities. Results. A total of 74,181 mosquitoes belonging to 14 Anopheles species were recorded. An. subpictus was the most predominant species from all techniques representing 92% (n=68,268) of the total anopheline collection. However, Anopheles culicifacies was not recorded from any site during the study period. Larval surveys identified 12 breeding habitat categories including waste water collections, lagoon water collections, and drains which were not recorded as breeding habitats by previous studies. The mean dissolved oxygen level of waste water collections was 3.45±0.15 mg/l. The mean salinity and conductivity of lagoon water collections were 21105±1344 mg/l and 34734±1974 μs/cm, respectively. Conclusion. The present study provides the updated knowledge on anopheline distribution and vector bionomics. Therefore, documentation of the current knowledge would be useful for learners and health authorities to design appropriate vector control measures in the prevention of reintroduction of malaria.

scholarly journals PERFORMANCE OF THE ATRAKTA™ MOSQUITO LURE IN COMBINATION WITH DYNATRAP® (MODELS DT160 AND DT700) AND A CDC TRAP (MODEL 512)

2021 ◽  
Vol 68 (1) ◽  
pp. 48-55
Author(s):  
Amy Junnila
Keyword(s):  
Lactic Acid ◽  
West Africa ◽  
Anopheles Gambiae ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Mosquito Species ◽  
Ammonium Bicarbonate ◽  
Field Conditions ◽  
Primary Study ◽  
Prolonged Storage

The performance of the three-part mosquito lure ATRAKTA (1-octen-3-ol, ammonium bicarbonate, and lactic acid) was evaluated in two DynaTrap commercial mosquito traps (models DT160 and DT700) as well as in one model of CDC trap (model 512). Lures were evaluated fresh from the factory, after being aged in functioning traps under field conditions, and after prolonged storage in the packaging (aged for 30 days aged in functioning traps before being tested in the DynaTrap models; and two years stored in the packaging before being tested in CDC traps). The primary study questions were whether the addition of lures would increase efficacy of various trap types and whether lures would retain effectiveness after a lengthy stay on the shelf or in traps. To do this, traps with no lures, new lures and old lures were used to trap three mosquito species (Aedes albopictus, Culex quinquefasciatus, and Anopheles gambiae) in the field in West Africa Mali, the first two species are also common North American nuisance mosquitoes. The addition of ATRAKTA lures aged 30 days to both DynaTrap® models, and ATRAKTA lures aged two years in the packaging to the CDC trap significantly increased catches of female Cx. quinquefasciatus and Ae. albopictus mosquitoes. Aged lures did not significantly lose their attraction in comparison to lures fresh from the factory. The addition of lures to traps resulted in slight increases in catches of An. gambiae, but these were not statistically significant. No effect of any lures on males was observed.

The biting flies of the Kano Plains, Kenya: Part II. Larval habitats of common mosquito species (Dipt., Culicidae)

1971 ◽  
Vol 61 (2) ◽  
pp. 299-307 ◽  
Author(s):  
Canute P. M. Khamala
Keyword(s):  
Culex Pipiens ◽  
Mosquito Species ◽  
Breeding Site ◽  
Breeding Sites ◽  
Larval Habitats ◽  
Emergent Plants ◽  
Culex Pipiens Fatigans ◽  
Breeding Habitats ◽  
Mosquito Breeding ◽  
Selection Of

Six natural terrestrial mosquito breeding habitats were recognised in the Kano Plains of Kenya by their condition, i.e. temporary or permanent, presence or absence of emergent plants, and by the chemical and physical characteristics of their water. Between September 1968 and March 1970, 13 mosquito species were found breeding in these habitats. Most species were restricted to a few habitats; only four showed a wide occurrence, being found in at least four. Anopheles gambiae Giles and Culex annulioris Theo. exploited all six habitats, suggesting that the characteristics studied were probably not critical to their selection of a breeding site. Mansonia and Coquillettidia spp. were restricted to habitats with some plants, indicating their dependence on such vegetation for respiration and protection. The indiscriminate selection of breeding sites by disease vectors, e.g. A. gambiae, A. pharoensis Theo. and Culex pipiens fatigans Wied., is worth noting in irrigation schemes.

scholarly journals Fauna associated with Malayan filariasis transmission in Banyuasin, South Sumatra, Indonesia

2021 ◽  
pp. 1954-1959
Author(s):  
Budi Mulyaningsih ◽  
Sitti Rahmah Umniyati ◽  
Suwarno Hadisusanto ◽  
Erwin Edyansyah
Keyword(s):  
Mosquito Species ◽  
Polymerase Chain Reaction Method ◽  
Breeding Habitat ◽  
Chain Reaction ◽  
Cross Sectional ◽  
Blood Samples ◽  
Breeding Habitats ◽  
Polymerase Chain ◽  
Reservoir Hosts ◽  
Mansonia Uniformis

Background and Aim: Brugia malayi is known to be zoonotically important because it can be transmitted from animals (mammals and primates) to humans or from humans to humans through mosquito vectors. This study was conducted to explore the fauna associated with Malayan filariasis transmission in Sedang village, Suak Tapeh District, Banyuasin Regency, South Sumatra Province, Indonesia. Materials and Methods: A cross-sectional research design with an observational and analytical approach was applied in this study, and it was conducted in May 2018. Mosquitoes were collected twice using human bait both inside and outside the house from 6:00 p.m. to 6:00 a.m. The presence of competitors, predators, and reservoir hosts in the areas of five breeding habitats of Mansonia spp. was observed. The presence of microfilaria was confirmed under a microscope in night blood samples of inhabitants and cats. The presence of infective larvae (L3) of B. malayi was identified microscopically and based on the polymerase chain reaction method in female Mansonia mosquitoes. Results: A total of 12 mosquito species were found, among which Mansonia uniformis was the dominant mosquito, and the predominant competitor was Mansonia annulifera. Dragonflies, as predators were found in two breeding habitats and fish were found in one breeding habitat. The L3 of B. malayi were not identified in the mosquitoes, and the microfilariae of B. malayi were not found in the blood samples of inhabitants and cats. Conclusion: Although Mansonia mosquito population was abundant in Banyuasin Regency, the mosquito was not confirmed as an intermediate host of B. malayi, and the cat was not confirmed as a reservoir of B. malayi in the location.

scholarly journals Characterization of Potential Larval Habitats and Spatial Distribution of Anopheles Species Larvae During the Dry Season in Mutare City, Zimbabwe: a Cross-sectional Study

2021 ◽  
Author(s):  
Aramu Makuwaza ◽  
Paddington Tinashe Mundagowa ◽  
Tapiwa Gowera ◽  
Nobert Mudare ◽  
Mukuma Lubinda ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Human Activities ◽  
Rapid Expansion ◽  
Malaria Vectors ◽  
Major Public Health Problem ◽  
Larval Habitats ◽  
Breeding Habitats ◽  
Urban Settlements ◽  
Mosquito Breeding ◽  
The City

Abstract Background: Malaria is traditionally known to be concentrated in rural areas but the disease is increasingly becoming a major public health problem for urban settlements in Africa. National malaria reports show that Mutare City had the greatest endemic malaria burden among all urban settlements in Zimbabwe. To prevent malaria outbreaks, it is essential to monitor malaria vectors in populous urban centers to establish the foci of the vectors while they are still small. This study sought to identify, describe, quantify, geocode mosquito potential larval habitats and their spatial distribution within the city. Methods: Mutare City was divided into four regions and the study was conducted from June to November 2019. Larval sampling of 223 potential habitats was done and the collected larvae were reared until they became adult mosquitoes before being morphologically identified using the keys developed by Gillies and Coetzee. Data were entered and analyzed using Epi Info version 7.2.1.0 statistical package.Results: Anopheline speciation showed that the city was infested with Anopheles funestus (4.9%), An. arabiensis (0.3%), An. pretoriensis (91.3%) An. coustani (0.5%), An. rufipes (2.8%), and An. maculipalpis (0.2%). Overall, An. funestus group was the predominant with An. arabiensis complex less common. The species composition of An. funestus group varied significantly among the sampling habitats. Results showed most mosquito breeding habitats were due to human activities such as agriculture, earth mining, and leaking piped water valves. The digging of shallow wells for domestic use in the high-density areas also contributed to the increase in mosquito breeding habitats.Conclusion: The most significant malaria vectors in the city were An. funestus ss and An. arabiensis. The proliferation of larval habitat hotspots in Mutare City was being fueled by human activities related to earning a living and housing construction. Effective interventions for enhanced larval source management could use a multi-sectoral approach involving all the urban stakeholders. Considering the rapid expansion of the city, more investment is needed to target the most productive habitats by fixing leaking water pipes and frequent application of larvicides with greater residual activity to treat permanent habitats particularly before the rainy season.

scholarly journals Evaluation of Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus Mosquitoes Competence to Oropouche virus Infection

Viruses ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 755
Author(s):  
Silvana F. de Mendonça ◽  
Marcele N. Rocha ◽  
Flávia V. Ferreira ◽  
Thiago H. J. F Leite ◽  
Siad C. G. Amadou ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Mosquito Species ◽  
Blood Feeding ◽  
Viral Pathogens ◽  
Tropical Regions ◽  
Vertebrate Hosts ◽  
Geographic Expansion ◽  
Immunocompromised Mice

The emergence of new human viral pathogens and re-emergence of several diseases are of particular concern in the last decades. Oropouche orthobunyavirus (OROV) is an arbovirus endemic to South and Central America tropical regions, responsible to several epidemic events in the last decades. There is little information regarding the ability of OROV to be transmitted by urban/peri-urban mosquitoes, which has limited the predictability of the emergence of permanent urban transmission cycles. Here, we evaluated the ability of OROV to infect, replicate, and be transmitted by three anthropophilic and urban species of mosquitoes, Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus. We show that OROV is able to infect and efficiently replicate when systemically injected in all three species tested, but not when orally ingested. Moreover, we find that, once OROV replication has occurred in the mosquito body, all three species were able to transmit the virus to immunocompromised mice during blood feeding. These data provide evidence that OROV is restricted by the midgut barrier of three major urban mosquito species, but, if this restriction is overcome, could be efficiently transmitted to vertebrate hosts. This poses a great risk for the emergence of permanent urban cycles and geographic expansion of OROV to other continents.

scholarly journals Spatial Distribution of Discarded Vehicle Tires and Their Influence on Aedes albopictus and Culex quinquefasciatus Populations, New Orleans, Louisiana

2020 ◽  
Author(s):  
Mohamed F. Sallam ◽  
Tamer Ahmed ◽  
Cynthia Sylvain-Lear ◽  
Claudia Riegel ◽  
Imelda K. Moise
Keyword(s):  
Spatial Distribution ◽  
New Orleans ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Mosquito Species ◽  
Land Use Land Cover ◽  
Muddy Water ◽  
Geographic Expansion ◽  
Water Holding ◽  
Container Mosquito

AbstractDiscarded vehicle tires play an important role in the colonization of container mosquito populations, particularly their geographic expansion. We assessed the spatial distribution of illegally discarded tires and their response to land use-land cover (LULC), and demographic factors using geospatial analysis and generalized regression. Multiple stepwise regressions were used to evaluate the response of the Container Index (CI) of colonized Aedes albopictus (Skuse), and Culex quinquefasciatus Say to macro- and microhabitats variables. The illegally discarded tires were distributed over 11 planning districts with clustering distribution for tires frequency and overdispersed distribution for tires number. Out of 1,137 (∼37.08%) water-holding tires, 598 (∼52.64%) tires at 65 (∼38.46%) sites were positive for colonized mosquito populations. A total of 13 mosquito species were identified, with the highest CI of Ae. albopictus (44.19%) and Cx. quinquefasciatus (22.18%). Aedes albopictus colonized all 65 sample sites and Cx. quinquefasciatus found at 32 sites. The Container Index (CI) of colonized mosquito was clustered in seven planning districts for Ae. albopictus and five planning districts for Cx. quinquefasciatus. Microhabitat (muddy water) rather than macrohabitats variables predicted both species’ colonization, especially Ae. albopictus. The contribution of macro- and microhabitat characteristics in predicting colonized mosquito in water-holding tires was discussed.

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