However, the family Chironomidae
(Diptera), commonly referred to as non-biting midges or chironomids, is the most widely distributed, most diverse, and often the most abundant of all families of benthic macroinvertebrates in aquatic ecosystems, including ECEs (Ferrington Jr., 2008).
Jorcin and Nogueira (2008) evaluated the composition, specific richness and abundance of benthic macroinvertebrates in eight reservoirs along the Paranapanema River (Sao Paulo State, Brazil), as well as in its major tributaries (Taquari, Pardo and Tibagi) and in the river mouth into the Parana River, and they also noted the predominance of Diptera (family Chironomidae
In the main channel, the ephemeropteran Family Baeticidae and the dipteran larvae of Family Chironomidae
were almost equally abundant, 22.46% and 22.94%, respectively.
Muller) Leonhardi Ulothrix flacca A (Dillwyn) Thuret Ulva intestinalis A 9 0.23 [+ or -] 1.14 Linnaeus Urospora A penicilliformis (Roth) Areschoug Amphibalanus S 30 0.55 [+ or -] 1.47 improvisus Darwin Asellus aquaticus H 5 < 0.01 (Linnaeus) Bithynia tentaculata H 7 0.04 [+ or -] 0.18 (Linnaeus) Cerastoderma glaucum S 25 0.28 [+ or -] 1.28 (Poiret) Family Chironomidae
D 55 0.05 [+ or -] 0.27 Order Coleoptera C 2 < 0.01 Cordylophora caspia S (Pallas) Corixa Geoffroy C Corophium volutator D 2 0.02 [+ or -] 0.11 (Pallas) Cyanophthalma C 11 < 0.01 obscura (Schultze) Order Diptera C Dreissena polymorpha S (Pallas) Ecrobia ventrosa H 14 0.01 [+ or -] 0.06 (Montagu) Gammarus duebeni H Liljeborg Gammarus juv.
Among insect larvae registered in stomachs, those belonging to the family Chironomidae
were the most abundant in the site 2, which is explained by the higher level of environmental degradation at this site (SOUZA; LIMA-JUNIOR, 2013), and because these larvae are considered r-strategist organisms, with high fecundity and hemoglobin to withstand low oxygen concentrations (BAXTER, 1977).
The family Chironomidae
was dominant or subdominant taxa at all sites (13% at sites 1 and 2 and 20% at site 3).
The orders Ephemeroptera, Diptera, and Odonata, along with the family Chironomidae
, were the most important macroinvertebrate groups in distinguishing the sites based upon the envfit thnction in program R (R Development Core Team, 2008; P < 0.01).
. In: Catalogue of Palaearctic Diptera Psychodidae- Chironomidae (eds.
The most common taxa found in all ponds were in the family Chironomidae
(Diptera) and the most diverse invertebrate group in the area was the family Dytiscidae (Coleoptera), which was composed of 20 genera.
For example, one of the dominant, and most diverse, groups in the Arctic is the Family Chironomidae
(Oliver and Dillon, 1997).
Some, like the tinted drawings used to illustrate structures of midges (family Chironomidae
) are simply superb.
Many other examples of preference for temporary water bodies exist in the family Chironomidae
(Frouz et al.