Effects of runoff from land clearing and urban development on the distribution and abundance of macroinvertebrates in pool areas of a river

Hogg, Ian D.; Norris, RH

doi:10.1071/mf9910507

Cited by 54 publications

(38 citation statements)

References 23 publications

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“…In the Bega valley, deterioration in geomorphic condition is often associated with increased physical instability through channel incision and widening, and habitat simplification through the smothering of complex stony substrata with mobile sand sheets (Fryirs, 2001(Fryirs, , 2003. Instability is likely to be detrimental to sensitive macrophyte and macroinvertebrate species (Death and Winterbourn, 1995;Biggs et al, 2001), and simplification is likely to have an adverse effect on many macroinvertebrate species that favour complex stony substrata (Blyth et al, 1984;Hogg and Norris, 1991).…”

Section: Discussionmentioning

confidence: 96%

Linking geomorphic character, behaviour and condition to fluvial biodiversity: implications for river management

Chessman

Fryirs

Brierley

2006

Aquatic Conservation

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The River Styles1 framework is a geomorphic approach to the classification of river types, assessment of the physical condition of rivers, and planning of physical rehabilitation. However, the linkages between River Styles and aquatic biodiversity conservation are still only weakly developed.2. In this study, 41 sites in the Bega River basin in New South Wales, Australia, were classified according to River Style and geomorphic condition, and surveyed for four biological assemblages: diatoms, aquatic and semi-aquatic macrophytes, aquatic macroinvertebrates and fish.3. Each assemblage differed significantly among River Styles. However, in the case of diatoms and fish, these differences could be accounted for by geographic clustering of sites in the same River Style, and a tendency for River Styles to occupy particular altitudinal zones and sizes of streams. This result was attributed to the overriding influences of water quality on diatoms and of altituderelated variation in water temperature and distance from the ocean on fish. For macrophytes and macroinvertebrates, geomorphic river type appeared to exert a direct influence, probably via variation in physical habitat characteristics.4. Geomorphic condition, judged as good, moderate or poor by reference to the inferred natural condition of each River Style, was also significantly associated with differences in biological assemblages other than fish. Twice as many taxa appeared to favour sites in good geomorphic condition as favoured sites in poor condition. Many of the taxa associated with sites in poor condition are alien taxa introduced to Australia since European settlement.5. These findings imply that protection of reaches that are in good geomorphic condition is likely to be critical for the maintenance of indigenous biodiversity, and that rehabilitation of geomorphic condition can assist in the rehabilitation of native riverine biota.

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Section: Discussionmentioning

confidence: 96%

Linking geomorphic character, behaviour and condition to fluvial biodiversity: implications for river management

Chessman

Fryirs

Brierley

2006

Aquatic Conservation

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“…The effects of urbanisation on stream ecosystems are complex, and the study of urban stream ecology is still in its infancy (Campbell 1978;Hogg & Norris 1991;Grimm et al 2000;Suren 2000). Nevertheless, it is well known that urban streams are frequently subjected to three general kinds of impacts: inputs of pollutants (e.g., chemicals and sediments), altered hydrological regimes (e.g., reduced water tables and exaggerated flooding), and changes in riparian and in-stream habitat (e.g., channelisation and reduced habitat complexity and diversity).…”

Section: Introductionmentioning

confidence: 99%

“…Generally, benthic invertebrate communities in urban streams have relatively few taxa, with pollution-sensitive insect orders, such as Ephemeroptera, Plecoptera, and Trichoptera (EPT taxa) either absent or poorly represented (Campbell 1978;Pratt et al 1981;Hogg & Norris 1991;Roy et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Longitudinal patterns in benthic communities in an urban stream under restoration

Blakely¹,

Harding

2005

New Zealand Journal of Marine and Freshwater Research

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Okeover Stream, on the University of Canterbury campus in Christchurch, New Zealand, has been the subject of restoration efforts since 1998. Our study focused on quantifying the response of this urban stream to current restoration efforts. Initially, physico-chemical conditions and biological communities at three sites along the Okeover Stream were compared with three physically similar sites on each of nearby Waimairi Stream and Avon River. General physical and chemical parameters were similar in all streams with circum-neutral pH, specific conductivity ranging from 167 to 173 µS/cm, dissolved oxygen ranging from 9.0 to 9.2 mg/litre, low turbidity, and similar hydrological conditions. However, analysis of heavy metals in the sediment showed mean lead (Pb) communities. Taxonomic richness and caddisfly diversity increased downstream, with twice as many taxa at the most downstream site than the uppermost sampling site. In upper reaches, copper (Cu), Pb, and zinc (Zn) concentrations in sediments all exceeded ANZECC ISQG-low trigger values. Despite ongoing restoration efforts in Okeover Stream, sedimentation, the presence of high heavy metal concentrations, intermittent flows in headwaters, and possible barriers to adult recolonisation seem to be having a continuing negative impact on benthic communities, especially in the headwaters.

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“…Substrate dominated by fine fractions, as seen in the margins after filling, are inappropriate for the settlement of many Chironomidae taxa (Hogg and Norris, 1991;Shimizu et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Impact of damming on the Chironomidae of the upper zone of a tropical run-of-the-river reservoir

2016

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We examined the effects of the Mogi-Guaçu river damming (São Paulo State, Brazil) on the Chironomidae fauna. Pre, during, and post-filling sampling was carried out in the main channel and margins of one site in the upper zone of the reservoir, using a modified Petersen grab (325 cm 2 ). We evaluated the total, subfamily, and tribe densities and also their relative abundance. Analysis of genera included densities, relative abundance, richness, and dominance. The Rosso's ecological value index (EVI) determined the ecological importance of each genus. There was a tendency of decrease of the total Chironomidae density, increase in the percentage of Chironomini, and decrease in densities and percentages of Orthocladiinae and Tanytarsini. These changes in percentage were respectively related to Polypedilum, Lopescladius, and Rheotanytarsus, the genera with the highest EVI values. After-filling richness was lower in the margins and dominance of genera did not change significantly. Chironomidae in the margins was more sensitive to damming than in the main channel. This difference in sensibility sustains the use of Chironomidae as bioindicators. Damming impact was indicated by the reduction of both genera richness in the margins and relative abundance of groups typical of faster waters. The results have highlighted the need for multi-habitat analysis combined with a before-after sampling approach in the environmental impact studies concerning the damming impact on the benthic fauna.Keywords: bioindicators, taxocenose composition and structure, before after sampling design. Impacto de um represamento sobre Chironomidae do remanso de um reservatório fio d'água tropical ResumoEste trabalho teve como objetivo avaliar o impacto do represamento do Rio Mogi-Guaçu, em um ponto situado na zona de remanso do reservatório, através da utilização da taxocenose Chironomidae. A amostragem foi realizada antes, durante e após o represamento, no canal e nas margens, com o auxílio de um pegador Petersen modificado (área de 325 cm 2 ). Calculou-se a densidade total, de subfamílias, tribos e gêneros de Chironomidae, bem como sua abundância relativa. Estimou-se a riqueza e a dominância de gêneros. O índice de valor ecológico de Rosso (IVE) foi utilizado para avaliar a importância ecológica dos diferentes gêneros. Houve tendência de redução da densidade total de Chironomidae, aumento da abundância relativa de Chironomini e diminuição das abundâncias relativas de Orthocladiinae e Tanytarsini. Estas alterações de abundância relativa foram relacionadas respectivamente a Polypedilum, Lopescladius e Rheotanytarsus, gêneros que apresentaram os maiores valores de IVE. Após o represamento, houve decréscimo da riqueza de gêneros na margem, enquanto a dominância não apresentou alteração significativa. A taxocenose de Chironomidae das margens mostrou-se mais sensível ao represamento que a do canal. Esta diferença de sensibilidade confirma o potencial dos Chironomidae como bioindicadores. A ocorrência de impacto foi observada através da diminuição...

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Effects of runoff from land clearing and urban development on the distribution and abundance of macroinvertebrates in pool areas of a river

Cited by 54 publications

References 23 publications

Linking geomorphic character, behaviour and condition to fluvial biodiversity: implications for river management

Linking geomorphic character, behaviour and condition to fluvial biodiversity: implications for river management

Longitudinal patterns in benthic communities in an urban stream under restoration

Impact of damming on the Chironomidae of the upper zone of a tropical run-of-the-river reservoir

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