quinquefasciatus larvae, chironomid
larvae and tubificid worms were added and were allowed to settle for 24 h.
Surveys by Pemberton (1980) and Markham (1985) in Lake Tanganyika found evidence of damage to hydrilla, and both studies concluded that the damage was caused by chironomid
midges in the genus Polypedilum Kieffer.
Summer oxygen content plays the main role among the factors that control the distribution of chironomid
larvae on the bottom; it is more important than the concentration of nutrients (Kansanen et al.
Alternatively, previous research indicated that rain events may inhibit emergence of chironomid
larvae, an important food source for Mallard ducklings (Nelson 1989).
Fly anglers on Crane Prairie Reservoir are reporting good success using chironomid
In two of the three collections made at Riverbend and Centreville, chironomid
numbers also rose, an expected result in these "big river" sites due to increasing enrichment downstream.
Ratio of the number of EPT individuals to the number of EPT + chironomid
individuals (EPT/[EPT + chi]): This metric can be viewed as the proportional abundance of macroinvertebrates in the mostly pollution sensitive taxa to the mostly pollution tolerant taxa (Lenat, 1993).
tigrinus were chironomid
larvae, the cockle Cerastoderma glaucum (Poiret), and the gastropod Theodoxus fluviatilis (L.
Studies of shorebird diet among interior stopover habitats indicate that chironomid
larvae are the dominant prey items (Helmers 1991, Mihue et al.
At Grafham, better quality over-wintered fish selected the chironomid
menu while more recently stocked fish fell for lures.
Interacting influences of density and preference on the emigration rates of some lotic chironomid
Glyptotendipes paripes and Goeldichironomus carus were the 2 predominant chironomid
species in the wetlands.