Role of algae in the diet of Chironomus plumosus F. semireductus from the Bay of Quinte, Lake Ontario

Johannsson, Ora E.; Beaver, Janet L.

doi:10.1007/bf00036693

Cited by 17 publications

(14 citation statements)

References 19 publications

(2 reference statements)

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“…In hypertrophic systems cyanobacteria usually make up a substantial proportion of the planktonic community during late summer. These algae often form colonies and might therefore often be too large for ingestion (JOHANNSSON and BEAVER, 1983). Moreover, cyanobacteria have been shown to be only slightly digested by larvae of the midge Chironomus plumosus (L.), and are generally not regarded to be a good food source for profundal deposit-feeders (e.g.…”

Section: Discussionmentioning

confidence: 99%

Modelling the importance of sediment bacterial carbon for profundal macroinvertebrates along a lake nutrient gradient

Goedkoop

Johnson

1992

Netherlands Journal of Aquatic Ecology

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In dimictic, temperate lakes little is known about the quantitative importance of trophic coupling between pelagic and profundal communities. Although it is a generally accepted paradigm that profundal secondary production is dependent on autochthonous pelagic production (primarily diatoms), the importance of interactions between phytodetrital inputs, sediment bacteria, and macroinvertebrates are still not well understood. In this study, we used theoretical models to estimate macroinvertebrate carbon requirement (production + respiration) and bacterial production for lakes of different trophic categories. Comparisons of estimates show that the importance of bacterial production as a carbon source for benthic macroinvertebrates is inversely related to lake trophic state. Assuming that infauna assimilates 50% of ingested bacterial carbon, this food source could account for between 47% (oligotrophic lakes) and 2% (hypertrophic lakes) of their carbon demand. These calculations indicate that bacterial carbon should not be an important C-resource for profundal macroinvertebrates of eutrophic and hypertrophic lakes.

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Section: Discussionmentioning

confidence: 99%

Modelling the importance of sediment bacterial carbon for profundal macroinvertebrates along a lake nutrient gradient

Goedkoop

Johnson

1992

Netherlands Journal of Aquatic Ecology

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“…However, the nutritional value of detritus is questionable because much is refractory, and detritivorous macroinvertebrates typically lack the required enzymatic capacity to breakdown cellulose and other complex plant polysaccharides. Thus, the associated microbial flora is likely of greater nutritional importance, either directly as a food source, or via mineralisation of the detritus into more readily digestible forms (Johannsson & Beaver 1983). In fact, Chironomus plumosus and C. riparius are both capable of completing larval development on diets consisting solely of bacteria (Rodina 1971, Baker & Bradnam 1976.…”

Section: Introductionmentioning

confidence: 99%

Differential assimilation of methanotrophic and chemoautotrophic bacteria by lake chironomid larvae

Grey¹,

Deines²

2005

Aquat. Microb. Ecol.

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Bacteria play an important role in the nutrition of many lake-dwelling detritivorous macroinvertebrates, yet few studies have investigated the roles of differing groups of bacteria in freshwater systems. Recent stable carbon isotope analyses have revealed that methanotrophic bacteria help fuel lake food webs. We analysed individual larvae of co-existing Chironomus plumosus and C. anthracinus for stable sulphur isotopes as an alternative tracer for bacterial assimilation, and compared them with existing stable carbon isotope data. The combination of these 2 isotopes suggests that there are large inter-and intraspecific differences in the incorporation of bacteria rather than algae in the diet of both species. C. anthracinus appears to assimilate a greater proportion of chemoautotrophs relative to its congener, which is consistent with classical descriptions of C. anthracinus feeding mode relative to bacterial stratigraphy in the sediments. The higher intraspecific isotope variability of C. plumosus indicates variable proportions of methanotrophs, chemoautotrophs and phytoplankton to the diets of individuals.

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“…Phytoplankton sedimenting onto a reservoir bottom is a favorite food for Chironomus. The diatoms that, in spring, constitute a major proportion of the phytoplankton in rivers feeding Zegrzyński Reservoir (Bubień 1989) exhibit a very high nutritive value, because of high concentrations of unsaturated fatty acids (Johannson and Beaver 1983, Rasmussen 1984, Goedkoop and Johnson 1996, Ahlgren et al 1997, Goedkoop et al 2000. A continuous supply of sedimenting tripton, rich in diatoms, is probably the main cause of the high numbers of Chironomus observed during the spring peak.…”

Section: Discussionmentioning

confidence: 99%

The dependencies between the abundance of Chironomus f. l. plumosus and bream (Abramis brama) net catches in a lowland reservoir (Zegrzyński Reservoir, central Poland)

Prus

2009

Oceanological and Hydrobiological Studies

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Chironomus f. l. plumosus larvae, a valuable food of bream (Abramis brama (L.)), dominate in the benthos of the extra-littoral zone of the shallow, lowland, eutrophic Zegrzyński Reservoir. Bream is the dominant fish species in this reservoir, making up to 80% of total net catches. During eight years of studies, very regular Chironomus population dynamics were noted in the lotic part of the central, broad basin of the reservoir. There were usually two peaks of the abundance: the higher one in spring, and the much lower one in late summer. reservoir in particular years. The total bream catch per year in the reservoir studied also correlated positively with the average yearly abundance of Chironomus. The correlation between Chironomus abundance and bream occurrence (measured by commercial net catches) in the reservoir studied suggests that this environment is used by bream mainly as a feeding ground. In the years with a low spring Chironomus peak of abundance, the bream leave the reservoir, searching for food in its inflows -two large, lowland rivers. This corresponds to much lower catches noted in the reservoir in the years of low Chironomus abundance.

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Role of algae in the diet of Chironomus plumosus F. semireductus from the Bay of Quinte, Lake Ontario

Cited by 17 publications

References 19 publications

Modelling the importance of sediment bacterial carbon for profundal macroinvertebrates along a lake nutrient gradient

Modelling the importance of sediment bacterial carbon for profundal macroinvertebrates along a lake nutrient gradient

Differential assimilation of methanotrophic and chemoautotrophic bacteria by lake chironomid larvae

The dependencies between the abundance of Chironomus f. l. plumosus and bream (Abramis brama) net catches in a lowland reservoir (Zegrzyński Reservoir, central Poland)

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