نتایج جستجو برای: larvivorous fish
تعداد نتایج: 104012 فیلتر نتایج به سال:
The urban area of Dakar, Senegal, contains > 5,000 market-garden wells that provide permanent sites for mosquito larvae, in particular Anopheles arabiensis Patton, the major vector of malaria. A study of the bioecology of mosquito larvae was conducted over 1 yr with a monthly visit to 48 of these wells. Overall, 9,589 larvae were collected of which 80.1% were Culicinae and 11.9% Anophelinae. La...
Copepods from La Plata, Argentina were investigated to characterize the local community of larvivorous copepods inhabiting mosquito breeding sites and to identify new predator species of the mosquitoes which occur in artificial containers, Aedes aegypti and Culex pipiens. Diversity of larvivorous cyclopoids was highest in permanent pools. Predation by sex and age, selectivity on mosquito specie...
In the Comoros Islands, the level of malarial endemicity varies greatly from one island to the other, even though the total area (4 islands) covers less than 2 300 km2 and has a population of some 600,000 people only. The epidemiological stratification is based on the diversity of human and physical characterisation. They both determine the presence and the behaviour as well as the size of the ...
Dengue remains a significant public health issue in the Western Pacific Region. In the absence of a vaccine, vector control is the mainstay for dengue prevention and control. In this paper we describe vector surveillance and vector control in the Western Pacific countries and areas. Vector surveillance and control strategies used by countries and areas of the Western Pacific Region vary. Vector...
A bioenvironmental model to control malaria at Bharat Heavy Electricals Ltd. in Hardwar was developed by using existing resources to reduce mosquito breeding. The civil maintenance department carried out major source reduction work by filling pits, low lying areas, ditches, etc., with fly ash from a coal-fired power station, construction of stand posts and proper drainage, mosquito proofing of ...
In 1948 Giglioli reported an abundance of Aedes aegypt; on Grand Cayman, the largest of the three Cayman Islands, and recommended control by intradomiciliary residual treatment with DDT (I). These recommendations led to implementation of a yearly cycle of DDT spraying between 1950 and 1954, supplemented by use of larvivorous fish (Gambusia puncticulata) and kerosene oil in cisterns and water co...
BACKGROUND In 2006, severe outbreaks of Aedes aegypti-transmitted chikungunya occurred in villages in Karnataka, South India. We evaluated the effectiveness of combined information, education and communication (IEC) campaigns using two potential poeciliid larvivorous fish guppy (Poecilia reticulata) and mosquitofish (Gambusia affinis), in indoor cement tanks for Aedes larval control. METHODS ...
Experiments were carried out on the survival and growth of Rasbora daniconius, Puntius ticto and Puntius conchonius. The motivation of the study was to obtain information for growing the fish on a commercial scale for their use as biological control agents against mosquito larvae. The effects of temperature, total hardness, DO, pH and feed on the growth of fish were also investigated. Excessive...
Assembly Bill 1982 provides funding to implement mosquito best management practices (BMPs) at wildlife areas managed by the California Department of Fish and Game. The first year of the program is 2005-2006. A protocol for sampling immature mosquitoes (larvae and pupae) is outlined in this document. The document is intended to focus on three wildlife areas, but is likely applicable to other wil...
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