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Showing 1 to 5 of 5 for “"Chironomus spp."”.
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Macroscopic Benthos Populations and Taxonomy of the Family Chironomidae in Lake Poinsett, South Dakota
… in that all 19 genera were collected. Chironomus spp. (Chironomus plomosus, Chironomus attenuates and six unidentified species) was the most abundant group of organisms and occurred most frequently in the sapropel (mud) substrate. Forty percent (514.2/m2) of mean annual numbers and 77% …
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Food Selectivity of the Black Bullhead (Ictalurus melas, Rafinesque) in Lake Poinsett, South Dakota
… by adult bullheads while chronomid pupae (99% Chironomus spp.) were strongly selected (+0.75). Selectivity index for all organisms appeared to be dependent on their abundance, size, degree of exposure, and ability to avoid ingestion either by outmaneuvering their predators or by retreating into …
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Macroinvertebrate Response to Management Strategies and Habitat Condition at Kealia Pond NWR, Maui, Hawaii
… of isopods, amphipods, crawfish, odonates, and Chironomus spp. Were highest in vegetated habitats with fresh ground water inputs. In contrast, corixids and Polypedilum nubifer were most common in habitats with patchy vegetation or bare substrate. Isopods and amphipods occurred in higher …
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Aquatic Macroinvertebrate Production in Predominant Habitats of a Warmwater Stream: The James River, South Dakota
… varied among the three habitats. Glyptotendipes spp. (Chironomidae), Cyrne/lus .fraternus (frichoptera), and Naididae predominated on snags while Caenis spp. ( Ephemeroptera), chironomids, and oligochaetes predominated in rock habitats. The mud benthos was dominated numerically by Dero spp. …
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Assessing long-term changes in chironomid assemblages linked to past fluctuations in Leach’s Storm-Petrel populations on islands in the Western Atlantic Ocean
Nutrient loading is an important factor that can indirectly deplete dissolved oxygen concentrations in lakes. In environments where seabirds nest and breed, guano is a prominent source of nutrients that can eutrophy waterbodies. Such external nutrient inputs may deplete bottom-water oxygen, …