A23 Seasonal abundance of chironomid larvae in slow sand filter bed
نویسندگان
چکیده
منابع مشابه
The function of haemoglobin in relation to filter feeding in leaf-mining chironomid larvae.
(With One Text-figure) Tendipes (= Chironomus) plumosus larvae are unique among species of Tendipes in employing a filter-feeding mechanism for obtaining their food (Walshe, 1947 a). The larva spins a sheet of salivary secretion across the lumen of its tube, after which, by rapid anteroposterior undulations of the body, it irrigates the tube. Plankton or other organic particles in the incoming ...
متن کاملCytotaxonomy and Morphology of Chironomid Larvae (Diptera, Chironomidae) in Armenia
In the study of chironomids in Armenia several species of Orthocladiinae subfamily of Cricotopus genus, Diamesinae subfamily of Diamesa genus, and Chironominae subfamily of Chironomus genus, have been identified. In the Cricotopus genus two sibling species were found, not distinguishable by larval morphological features, but clearly distinct cytogenetically. Keywords—Armenia, Chironomidae, kary...
متن کاملA survey on the performance of moving bed biofilm reactor and rapid sand filter in wastewater treatment
Moving bed biofilm reactor (MBBR) is a process in which attached growth is utilized for wastewater treatment. This process does not require sludge recycling or backwash. Activated sludge processes can be promoted to an MBBR by adding media to an aeration tank. Rapid sand filter is a physical method for the removal of total suspended solids (TSS) in advanced wastewater treatment. The purpose of ...
متن کاملAllergy to chironomid larvae (red migde larvae) in non professional handlers of fish food.
UNLABELLED Chironomids are insects which inhabit wetlands. In countries such as Sudan, The United States. Egypt and Japan they are the cause of serious environmental allergy. In Europe, and particularly in Spain, allergy to Chironomids is infrequent and has only been described in patients who handle Chironomid larvae which form part of certain fish foods. MATERIALS AND METHODS We report a cas...
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ژورنال
عنوان ژورنال: Medical Entomology and Zoology
سال: 2002
ISSN: 0424-7086,2185-5609
DOI: 10.7601/mez.53.41_1