Chironomid Larvae and Pupae in the Diet of Brown Trout (Salmo Trutta) and Rainbow Trout (Salmo Gairdneri) in Rutland Water, Leicestershire

Brown, Alastair; Oldham, R. S.; Warlow, A.

doi:10.1016/b978-0-08-025889-8.50050-7

Cited by 11 publications

(7 citation statements)

References 8 publications

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“…There are differences in diet, however, and various studies have found that in sympatry with rainbow trout, brown trout consumed increased numbers of fish (Idyll, 1942;Phillips, 1984), bottom fauna (De Filby, 1976;McAuley, 1984) and deep-water chironomids (Brown et al, 1979) than rainbow trout. These analyses suggest that there may be a divergence in the feeding niches occupied by the two species, which allows them to co-exist.…”

Section: The Behaviour Of Escaped Fish and Their Impact On Inlandmentioning

confidence: 96%

“…The diet of rainbow trout and brown trout consists of a broad range of similar insect, crustacean, molluscan and fish species (Idyll, 1942;De Filby, 1976;Brown et al, 1979;McAuley, 1984;Phillips, 1984), indicating a broad basis for competition between the two species. There are differences in diet, however, and various studies have found that in sympatry with rainbow trout, brown trout consumed increased numbers of fish (Idyll, 1942;Phillips, 1984), bottom fauna (De Filby, 1976;McAuley, 1984) and deep-water chironomids (Brown et al, 1979) than rainbow trout. These analyses suggest that there may be a divergence in the feeding niches occupied by the two species, which allows them to co-exist.…”

Section: The Behaviour Of Escaped Fish and Their Impact On Inlandmentioning

confidence: 99%

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The environmental impact of salmonid cage culture on inland fisheries: present status and future trends

Phillips

Beveridge

Ross

1985

Journal of Fish Biology

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This paper briefly reviews the environmental impact of the cage culture of salmonids in fresh waters, and evaluates the effects of this fish farming practice on the growth, behaviour and diseases of inland fish populations, concentrating on relationships between rainbow trout cage culture and indigenous brown trout populations. Possible future developments in salmonid cagc culture are also discussed and the implications of this development for inland fisheries evaluated. The paper argues that the development of models should enable improved prediction of eutrophication from cage culture, to the benefit of the fish farmer, inland fisheries and other freshwater users, but also identifies a clear need for research in other areas of possible conflict.

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Section: The Behaviour Of Escaped Fish and Their Impact On Inlandmentioning

confidence: 96%

Section: The Behaviour Of Escaped Fish and Their Impact On Inlandmentioning

confidence: 99%

The environmental impact of salmonid cage culture on inland fisheries: present status and future trends

Phillips

Beveridge

Ross

1985

Journal of Fish Biology

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“…They utilise the vegetation as a substrate on which to build tubes, and also graze epiphytic algae . Each of the three taxa is an important component of brown and rainbow trout diet in Rutland Water (Brown et al 1980 ;Brown 1981) . Procladius (Tanypodinae) and most of the Chironominae were recorded throughout the depth range of the reservoir but these too showed their highest population densities in shallow water .…”

Section: Discussionmentioning

confidence: 99%

Bathymetric distribution of some Chironomidae (Diptera) in Rutland Water

Brown

Oldham

1982

Hydrobiologia

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The bathymetric distribution of the eight most abundant taxa of chironomid larvae is described from benthic grab samples collected in Rutland Water from May 1977 to April 1979 . Cricotopus, Psectrocladius and Endochironomus larvae were generally restricted to water less than 9 m deep . Procladius, Chironomus, Microtendipes, Polypedilum and Tanytarsini larvae were all recorded at depths down to 25 m . However, the highest population densities of the latter five taxa were recorded in shallow water . The results are discussed in relation to the diet of trout and certain management practices at the reservoir . Also described is the application of SPSS (Statistical Package for the Social Sciences) to the analysis of these data .

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“…Moreover, the ' concealment ' ability of an invertebrate (trait 14) can protect some invertebrates. Brown trout more frequently attack free-living than tubedwelling Chironomidae (Brown et al, 1980), and patterned v. solidly coloured caddisflies and stoneflies depending on the light intensity (Otto, 1984;Feltmate et al, 1992). These two traits influence the likelihood of being visually detected and act as a primary defence against predation.…”

Section: Morphological Traitsmentioning

confidence: 99%

Traits of brown trout prey in relation to habitat characteristics and benthic invertebrate communities

Billy¹

2002

Journal of Fish Biology

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A trait database based on habitat, behavioural and morphological characteristics of invertebrates enabled invertebrates known to have differential vulnerability to salmonid predation to be discriminated. Among all of these traits the most important were associated with invertebrate spatial proximity to salmonids (macrohabitat preference), potential conspicuousness and accessibility (e.g. flow exposure, mobility, tendency to drift, trajectory and agility) and handling efficiency (body flexibility and size). Data on benthos assemblages and brown trout salmo trutta diets collected over two consecutive summers in different macrohabitat types (e.g. pools, runs and riffles) of two Pyrenean streams demonstrated that: (i) decrease in torrential flow characteristics of habitats was associated with changes in invertebrate body shape and movement, and a decrease in body flexibility and tendency to drift; (ii) brown trout tended to feed on the most vulnerable invertebrates (e.g. those living in exposed microhabitats and with a high tendency to drift, agility and aggregation), except in faster flowing habitats. The results suggest that the potential vulnerability of benthic invertebrates increased with increases in flow (torrential) characteristics. Also, the database compiled on traits explained differences among brown trout diets, especially in slow flowing areas. 2002 The Fisheries Society of the British Isles

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Chironomid Larvae and Pupae in the Diet of Brown Trout (Salmo Trutta) and Rainbow Trout (Salmo Gairdneri) in Rutland Water, Leicestershire

Cited by 11 publications

References 8 publications

The environmental impact of salmonid cage culture on inland fisheries: present status and future trends

The environmental impact of salmonid cage culture on inland fisheries: present status and future trends

Bathymetric distribution of some Chironomidae (Diptera) in Rutland Water

Traits of brown trout prey in relation to habitat characteristics and benthic invertebrate communities

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