Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates. / Brown, Sarah A.; Ruxton, Graeme D.; Pickup, Roger W. et al.
In: Freshwater Biology, Vol. 50, No. 1, 31.01.2005, p. 113-126.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Brown, SA, Ruxton, GD, Pickup, RW & Humphries, S 2005, 'Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates', Freshwater Biology, vol. 50, no. 1, pp. 113-126. https://doi.org/10.1111/j.1365-2427.2004.01311.x

APA

Brown, S. A., Ruxton, G. D., Pickup, R. W., & Humphries, S. (2005). Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates. Freshwater Biology, 50(1), 113-126. https://doi.org/10.1111/j.1365-2427.2004.01311.x

Vancouver

Brown SA, Ruxton GD, Pickup RW, Humphries S. Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates. Freshwater Biology. 2005 Jan 31;50(1):113-126. doi: 10.1111/j.1365-2427.2004.01311.x

Author

Brown, Sarah A. ; Ruxton, Graeme D. ; Pickup, Roger W. et al. / Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates. In: Freshwater Biology. 2005 ; Vol. 50, No. 1. pp. 113-126.

Bibtex

@article{0b34495c6c2f488d825f1f86df3f54c2,

title = "Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates",

abstract = "1. Suspension feeding by caseless caddisfly larvae (Trichoptera) constitutes a major pathway for energy flow, and strongly influences productivity, in streams and rivers. 2. Consideration of the impact of these animals on lotic ecosystems has been strongly influenced by a single study investigating the efficiency of particle capture of nets built by one species of hydropsychid caddisfly. 3. Using water sampling techniques at appropriate spatial scales, and taking greater consideration of local hydrodynamics than previously, we examined the size-frequency distribution of particles captured by the nets of Hydropsyche siltalai. Our results confirm that capture nets are selective in terms of particle size, and in addition suggest that this selectivity is for particles likely to provide the most energy. 4. By incorporating estimates of flow diversion around the nets of caseless caddisfly larvae, we show that capture efficiency (CE) is considerably higher than previously estimated, and conclude that more consideration of local hydrodynamics is needed to evaluate the efficiency of particle capture. 5. We use our results to postulate a mechanistic explanation for a recent example of interspecific facilitation, whereby a reduction of near-bed velocities seen in single species monocultures leads to increased capture rates and local depletion of seston within the region of reduced velocity.",

keywords = "Capture efficiency, Particle size, Seston, Suspension feeding, Trichoptera",

author = "Brown, {Sarah A.} and Ruxton, {Graeme D.} and Pickup, {Roger W.} and Stuart Humphries",

year = "2005",

month = jan,

day = "31",

doi = "10.1111/j.1365-2427.2004.01311.x",

language = "English",

volume = "50",

pages = "113--126",

journal = "Freshwater Biology",

issn = "0046-5070",

publisher = "Blackwell Publishing Ltd",

number = "1",

}

RIS

TY - JOUR

T1 - Seston capture by Hydropsyche siltalai and the accuracy of capture efficiency estimates

AU - Brown, Sarah A.

AU - Ruxton, Graeme D.

AU - Pickup, Roger W.

AU - Humphries, Stuart

PY - 2005/1/31

Y1 - 2005/1/31

N2 - 1. Suspension feeding by caseless caddisfly larvae (Trichoptera) constitutes a major pathway for energy flow, and strongly influences productivity, in streams and rivers. 2. Consideration of the impact of these animals on lotic ecosystems has been strongly influenced by a single study investigating the efficiency of particle capture of nets built by one species of hydropsychid caddisfly. 3. Using water sampling techniques at appropriate spatial scales, and taking greater consideration of local hydrodynamics than previously, we examined the size-frequency distribution of particles captured by the nets of Hydropsyche siltalai. Our results confirm that capture nets are selective in terms of particle size, and in addition suggest that this selectivity is for particles likely to provide the most energy. 4. By incorporating estimates of flow diversion around the nets of caseless caddisfly larvae, we show that capture efficiency (CE) is considerably higher than previously estimated, and conclude that more consideration of local hydrodynamics is needed to evaluate the efficiency of particle capture. 5. We use our results to postulate a mechanistic explanation for a recent example of interspecific facilitation, whereby a reduction of near-bed velocities seen in single species monocultures leads to increased capture rates and local depletion of seston within the region of reduced velocity.

AB - 1. Suspension feeding by caseless caddisfly larvae (Trichoptera) constitutes a major pathway for energy flow, and strongly influences productivity, in streams and rivers. 2. Consideration of the impact of these animals on lotic ecosystems has been strongly influenced by a single study investigating the efficiency of particle capture of nets built by one species of hydropsychid caddisfly. 3. Using water sampling techniques at appropriate spatial scales, and taking greater consideration of local hydrodynamics than previously, we examined the size-frequency distribution of particles captured by the nets of Hydropsyche siltalai. Our results confirm that capture nets are selective in terms of particle size, and in addition suggest that this selectivity is for particles likely to provide the most energy. 4. By incorporating estimates of flow diversion around the nets of caseless caddisfly larvae, we show that capture efficiency (CE) is considerably higher than previously estimated, and conclude that more consideration of local hydrodynamics is needed to evaluate the efficiency of particle capture. 5. We use our results to postulate a mechanistic explanation for a recent example of interspecific facilitation, whereby a reduction of near-bed velocities seen in single species monocultures leads to increased capture rates and local depletion of seston within the region of reduced velocity.

KW - Capture efficiency

KW - Particle size

KW - Seston

KW - Suspension feeding

KW - Trichoptera

U2 - 10.1111/j.1365-2427.2004.01311.x

DO - 10.1111/j.1365-2427.2004.01311.x

M3 - Journal article

AN - SCOPUS:12744274706

VL - 50

SP - 113

EP - 126

JO - Freshwater Biology

JF - Freshwater Biology

SN - 0046-5070

IS - 1

ER -

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