An assessment of river channelization in England and Wales

Brookes, A.; Gregory, K. J.; Dawson, F.H.

doi:10.1016/0048-9697(83)90149-3

Cited by 101 publications

(49 citation statements)

References 15 publications

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“…Recent human activities, such as alterations to river channels and riparian land-use changes, have had a profound effect on the physical structure of many rivers in the UK (eg. Brookes et al, 1983;Raven et al, 1997). Many of these changes could seriously threaten surviving mussel populations.…”

Section: Introductionmentioning

confidence: 93%

Characterization of freshwater pearl mussel (Margaritifera margaritifera) riverine habitat using River Habitat Survey data

Hastie

Cooksley

Scougall

et al. 2003

Aquatic Conservation

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ABSTRACT1. The feasibility of using River Habitat Survey (RHS) data to describe freshwater pearl mussel (Margaritifera margaritifera) macrohabitat in the River Spey, north-east Scotland, was investigated.2. Mussels were found to be positively associated with a number of RHS variables. These included: boulder/cobble river bed substrates, broken/unbroken standing waves (channel flow types), aquatic liverworts/mosses/lichens and broadleaf/mixed woodland/bankside tree cover. Negative associations with gravel-pebble/silt substrates and emergent reeds/sedges/herbs were also found.3. Two binary logistic regression models, based on seven and four variables, respectively, were constructed in order to predict the presence/absence of mussels at any given site. Predictive success rates of 83% and 78% were achieved.4. Another binary logistic regression model, based on four variables, was constructed in order to predict the occurrence of 'optimal' M. margaritifera habitat (overall mussel densities 51 m À2 ). A predictive success rate of 83% was achieved.5. The results indicate two potentially important applications of RHS for the conservation management of M. margaritifera: (1) for monitoring the effects of physical changes on extant mussel beds (and predicting their effects on mussel populations), and (2) for determining the habitat suitability of historically occupied sites for re-introductions.

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Section: Introductionmentioning

confidence: 93%

Characterization of freshwater pearl mussel (Margaritifera margaritifera) riverine habitat using River Habitat Survey data

Hastie

Cooksley

Scougall

et al. 2003

Aquatic Conservation

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“…The extent of channel works in England and Wales between 1930 and 1980 is depicted by Brookes (1988) and Brookes et al (1983).…”

Section: Iv) Flood Banksmentioning

confidence: 99%

Channel Restoration Design for Meandering Rivers

Soar¹,

Thorne²

2001

148

136

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“…The precise description of habitat preferences of species through different parts of the life cycle is fundamental for protecting river fishes and facilitating their recovery (Brookes et al, 1983;Copp, 1990). We observed that the studied species had specific affinities for hydraulic and substrate variables and differed in abundance among the sampled stretches.…”

Section: Discussionmentioning

confidence: 82%

Habitat preferences of common native fishes in a tropical river in Southeastern Brazil

et al. 2013

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We determined in this study the habitat preferences of seven native fish species in a regulated river in Southeastern Brazil. We tested the hypothesis that fishes differ in habitat preference and that they use stretches of the river differing in hydraulic characteristics and substrate type. We surveyed fishes in four 1-km long river stretches encompassing different habitat traits, where we also measured water depth, velocity, and substrate type. We investigated preference patterns of four Siluriformes (Loricariichthys castaneus, Hoplosternum littorale, Pimelodus maculatus, and Trachelyopterus striatulus) and three Characiformes (Astyanax aff. bimaculatus, Oligosarcus hepsetus, and Hoplias malabaricus), representing approximately 70% of the total number of fishes and 64% of the total biomass. We classified fishes into four habitat guilds: (1) a slow-flowing water guild that occupied mud-sand substrate, composed of two Siluriformes in either shallow (< 4 m, i.e., H. littorale) or deep (> 8 m, L. castaneus) waters; (2) a run-dwelling guild that occurs in deep backwaters with clay-mud substrate, composed of the Characiformes A. aff. bimaculatus and O. hepsetus; (3) a run-dwelling guild that occurs in sandy and shallow substrate, composed of T. striatulus; and (4) a fast-flowing guild that occurs primarily along shorelines with shallow mud bottoms, composed of H. malabaricus and P. maculatus. Our hypothesis was confirmed, as different habitat preferences by fishes appear to occur in this regulated river.Determinamos neste estudo a preferência de habitat de sete espécies de peixes abundantes em um rio regulado do Sudeste do Brasil. Testamos a hipótese de que peixes diferem na preferência de habitat e usam trechos do rio com diferentes características hidráulicas e tipos de substratos. Realizamos amostragens de peixes, utilizando redes de espera e tarrafas em quatro trechos do rio de 1 km de extensão, compreendendo diferentes características do habitat, onde também obtivemos medidas de profundidade, velocidade da água e tipo de substrato. Quatro Siluriformes (Loricariichthys castaneus, Hoplosternum littorale, Pimelodus maculatus e Trachelyopterus striatulus) e três Characiformes (Astyanax aff. bimaculatus, Oligosarcus hepsetus e Hoplias malabaricus) que juntos compreenderam aproximadamente 70% do número total e 64% do peso total de peixes foram estudados. Classificamos os peixes em quatro guildas: (1) peixes que ocorrem em trechos com baixa velocidade de fluxo e substrato constituído predominantemente de lama e areia, compreendendo dois Siluriformes, um de áreas rasas (< 4 m, i.e., H. littorale) e outro de áreas profundas (> 8 m, i.e., L. castaneus); (2) peixes que utilizam rápidos de áreas laterais mais profundas com substrato lamoso, representados pelos pequenos Characiformes, A. aff. bimaculatus e O. hepsetus; (3) peixes que utilizam rápidos que ocorrem em áreas rasas e substrato arenoso, representado por T. striatulus; e (4) peixes de corredeiras que utilizam as margens rasas com fundo lamoso, representados por H. ...

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An assessment of river channelization in England and Wales

Cited by 101 publications

References 15 publications

Characterization of freshwater pearl mussel (Margaritifera margaritifera) riverine habitat using River Habitat Survey data

Characterization of freshwater pearl mussel (Margaritifera margaritifera) riverine habitat using River Habitat Survey data

Channel Restoration Design for Meandering Rivers

Habitat preferences of common native fishes in a tropical river in Southeastern Brazil

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