Invertebrate Colonization Rates in the Tailwater of a Kentucky Flood-Control Reservoir

Swink, William D.; Novotny, Jerry F.

doi:10.1080/02705060.1985.9665089

Cited by 3 publications

(4 citation statements)

References 9 publications

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“…Fluctuating flows may result in lower invertebrate densities (Fisher & LaVoy, 1972;Gislason, 1985;Kroger, 1973;Trotzky & Gregory, 1974;Williams & Winget, 1979) although Armitage (1978) and Novotny (1985) found higher densities of invertebrates under this type of flow regime. In agreement with other authors, we found the Chironomidae and Oligochaeta to be tolerant of flow fluctuations (Fisher & Lavoy, 1972;Gersich & Brusven, 1981;Gislason, 1985;Henricson & Sjoberg, 1984;Novotny, 1985;Swink & Novotny, 1985;Williams & Winget, 1979). In addition, we corroborate the results of Henricson & Sjoberg (1984) that the polycentropodid caddisfly Neureclipsis sp.…”

Section: Discussionsupporting

confidence: 82%

Effect of hydropower peaking flow fluctuations on community structure and feeding guilds of invertebrates colonizing artificial substrates in a large impounded river

Troelstrup

Hergenrader

1990

Hydrobiologia

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Artificial substrates were used to monitor the invertebrate communities below a power peaking impoundment and a flow re-regulating impoundment on the Missouri River on northeastern Nebraska, USA. Invertebrate communities on shallow samplers subjected to exposure from diel fluctuations in flow averaged 3 taxa per sampler and 91 organisms per square meter. In the absence of diel fluctuations, number of taxa per sampler increased to 12 and mean densities increased to 743 per square meter. Fluctuating discharges had no significant effect on numbers of taxa or densities on continually submerged artificial substrates. However, greater numbers of taxa and total densities were observed on deep (107 cm) versus shallow (30 cm) samplers below both impoundments.Polycentropodidae (Trichoptera), Chironomidae (Diptera) and Oligochaeta were observed to tolerate diel fluctuations and exposure below Fort Randall Dam while Hydropsychidae (Trichoptera) and Heptageniidae (Ephemeroptera) were extremely intolerant.Collector-gatherers and predator-engulfers were the predominant functional groups colonizing samplers below both impoundments. Higher numbers of collector-gatherers, collector-filterers and scrapers were observed from samplers in the absence of diel flow fluctuations.This study corroborates results from a number of other investigations, separated in space and time. Examined collectively, these studies provide the framework for understanding power peaking as a stress to benthic stream communities.

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Section: Discussionsupporting

confidence: 82%

Effect of hydropower peaking flow fluctuations on community structure and feeding guilds of invertebrates colonizing artificial substrates in a large impounded river

Troelstrup

Hergenrader

1990

Hydrobiologia

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“…The first chironomid larvae appeared 2 weeks after ponds were filled, in accordance with the results of Swink and Novotny (1985), who stated that it took 14 d for chironomids to colonize open water; Matena (1990) also found larvae in newly filled ponds after 11 d. The filtered versus nonfiltered water yielded no differences in invertebrate numbers; each treatment had a few organisms. However, pools in the nonscreened treatment had numerically greater benthic densities compared with those pools that were covered with a screen.…”

Section: Discussionsupporting

confidence: 86%

“…Much of the chironomid literature focuses on colonization of streams or lakes (Swink and Novotny 1985;Tavcar 1993;Kadono et al 1999;Ruse 2002). Colonization rates of chironomid larvae in temperate shallow lakes have been investigated in various studies (McLachlan 1985;Moss and Timms 1989;Matena 1990;Jackson and McLachlan 1991;Bataille and Baldassarre 1993).…”

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confidence: 99%

Origin of Chironomid Larvae in Plastic‐Lined Culture Ponds: Airborne or Water Supply?

et al. 2010

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Twelve 0.26-m 3 , shallow, plastic pools at an Iowa fish culture facility were used as mesocosms to determine the mode (airborne versus water supply) and rate of colonization by benthic chironomid larvae without the predation pressure of fingerling walleyes Sander vitreus. Chironomid larvae have particular importance in the culture of walleye fingerlings. Concurrent with walleye hatchery operations in nearby plastic-lined production ponds, pools were filled and then fertilized using the same protocols as the production ponds. A 2 3 2 factorial experimental design was used that included screened (1,000-lm mesh over the top of the pools) and nonscreened pools and filtered (75-lm-mesh sock) and nonfiltered water in the pools. Chironomid larvae were sampled twice during the 5-week culture season with Hester-Dendy samplers. At the end of the walleye culture season, there were no significant differences in chironomid density between filtered (108 larvae/m 2 ) and nonfiltered (657 larvae/m 2 ) pools, but nonscreened pools (592 larvae/m 2 ) had larger densities of chironomid larvae than screened pools (174 larvae/m 2 ). These results suggest that airborne movement and egg deposition by chironomid adults, rather than transfer of organisms from the water supply reservoir to the culture facility, constitute the primary method of chironomid colonization in plastic-lined ponds.

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“…Chironomidae have been examined in regulated rivers together with other faunal groups (for example Brooker and Morris, 1980;Swink and Novotny, 1985;Gislason, 1985;Chauvet, 1983;Layzer et al, 1989) and on their own (Gazagnes and Laville, 1985) but none of these studies has followed the development of the lotic chironomid fauna after regulation.…”

Section: Introductionmentioning

confidence: 99%

Environmental stability and communities of chironomidae (diptera) in a regulated river

Armitage

Blackburn

1990

Regul. Rivers: Res. Mgmt.

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Changes in the faunal composition and density of communities ofchironomid larvae were studied over a four year period in a newly regulated stream and compared with those in an adjacent unregulated stream, with a view to examining 'stability' in contrasting environments. A total of 68 chironomid taxa were recorded from all sites. Faunal diversity was lowest closest to the dam and highest in the unregulated site. Within the study period values of H were highest in the fourth year of study (five years after dam closure). Species increments were tending to level out a t the three totally regulated sites whereas at the partially regulated and unregulated sites new taxa continued to be recorded in samples.Clustering techniques and similarity indices clearly separated the study sites based on the composition of the chironomid fauna and there were indications that the unregulated sites were more variable in faunal composition between years than the regulated sites. The data are used to develop a conceptual model of fluctuations in faunal parameters under steady or reduced flow regimes. It is suggested that environmental stability brought about by regulation has structured the composition of the chironomid community and further that the changes occur very rapidly after impoundment. The model identifies key areas of faunal change and the question of environmental stability is discussed in relation to the scale of observation. KEY WORDS Environmental stabilityChironomidae Regulation River

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Invertebrate Colonization Rates in the Tailwater of a Kentucky Flood-Control Reservoir

Cited by 3 publications

References 9 publications

Effect of hydropower peaking flow fluctuations on community structure and feeding guilds of invertebrates colonizing artificial substrates in a large impounded river

Effect of hydropower peaking flow fluctuations on community structure and feeding guilds of invertebrates colonizing artificial substrates in a large impounded river

Origin of Chironomid Larvae in Plastic‐Lined Culture Ponds: Airborne or Water Supply?

Environmental stability and communities of chironomidae (diptera) in a regulated river

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