BACKGROUND & OBJECTIVES The predatory potential of the larvivorous fishes can be affected by the presence of alternative preys. In the present study the predation pattern of the sewage dwelling Poecilia reticulata (Peters 1872) on the larvae of Culex quinquefasciatus Say 1823 (Diptera: Culicidae) was evaluated in the presence of alternative preys. METHODS The predation of Cx. quinquefasciatus...

A new genus, Nubensia Spies, is proposed for N. nubens (Edwards, 1929), n. comb., based on morphological evaluation of both adult sexes, the pupa and larva. The material studied includes name-bearing syntype specimens and the first reared associations linking three life stages for individual members of this species. The larva represents a unique morphotype previously described incompletely only...

The mouthpart deformities of chironomid larvae are considered as indicators of environmental stress caused by water pollution such as heavy metals, pesticides, but as well by organic contamination. In the present study larvae from the side channels of the Ciénaga Grande de Santa Marta were investigated. The chironomid community of the channels are dominated by species of the genera Goeldichiron...

Abstract The Younger Dryas-Holocene transition represents a period of significant thermal change, comparable in magnitude to modern warming, yet colder context and without the effect anthropogenic disturbance. This is useful as reference tackle how biodiversity affected by temperature natural conditions. Here, we addressed change during this southern Baltic coastal lake (Konarzewo Lake, Poland)...

The occurrence and mass development of macroinvertebrates in drinking water networks is a challenge for pipe management. A current problem the larvae chironomid Paratanytarsus grimmii (mosquito), so-called pest organism that can have severe impacts on quality due to accumulation from parthenogenic reproduction, biofouling other aesthetic reasons. aim this study was develop new practical method ...

A chironomid midge, Cricotopus lebetis (Sublette) (Diptera: Chironomidae), was discovered attacking the apical meristems of Hydrilla verticillata (L.f. Royle) in Crystal River, Citrus Co., Florida in 1992. The larvae mine the stems of H. verticillata and cause basal branching and stunting of the plant. Temperature-dependent development, cold tolerance, and the potential distribution of the midg...