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Foraging behaviour and capture success in perch, pikeperch and pike and the effects of prey density

Turesson, Håkan LU and Brönmark, Christer LU (2004) In Journal of Fish Biology 65(2). p.363-375
Abstract
The effect of school size on capture success in three different piscivores, perch Perca fluviatilis, pikeperch Stizostedion lucioperca and pike Esox lucius, was investigated. Roach Rutilus rutilus were used as prey in a pool experiment where individual predators were presented prey at densities of one, two, four, eight and 16 prey, respectively. Treatments were replicated seven times for each predator species. Perch was at first virtually unable to capture a prey from a school and suffered a significant confusion effect with increasing prey density. The effect, however, was limited in the long run, as the perch was a very effective predator in its hunting strategy where it singled out and repeatedly attacked single prey irrespective of... (More)
The effect of school size on capture success in three different piscivores, perch Perca fluviatilis, pikeperch Stizostedion lucioperca and pike Esox lucius, was investigated. Roach Rutilus rutilus were used as prey in a pool experiment where individual predators were presented prey at densities of one, two, four, eight and 16 prey, respectively. Treatments were replicated seven times for each predator species. Perch was at first virtually unable to capture a prey from a school and suffered a significant confusion effect with increasing prey density. The effect, however, was limited in the long run, as the perch was a very effective predator in its hunting strategy where it singled out and repeatedly attacked single prey irrespective of prey density or school size. Pikeperch and pike were able to attack and capture prey at any prey density equally successfully and thus did not suffer from a confusion effect. Neither did these predators receive any apparent advantages from increasing prey density. (C) 2004 The Fisheries Society of the British Isles. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Fish Biology
volume
65
issue
2
pages
363 - 375
publisher
Wiley-Blackwell
external identifiers
  • wos:000223364400007
  • scopus:4143106824
ISSN
0022-1112
DOI
10.1111/j.0022-1112.2004.00455.x
language
English
LU publication?
yes
id
0ad824cd-cea7-46de-9c6d-db0f0c112a71 (old id 136635)
date added to LUP
2007-06-29 08:15:51
date last changed
2017-10-22 03:46:40
@article{0ad824cd-cea7-46de-9c6d-db0f0c112a71,
  abstract     = {The effect of school size on capture success in three different piscivores, perch Perca fluviatilis, pikeperch Stizostedion lucioperca and pike Esox lucius, was investigated. Roach Rutilus rutilus were used as prey in a pool experiment where individual predators were presented prey at densities of one, two, four, eight and 16 prey, respectively. Treatments were replicated seven times for each predator species. Perch was at first virtually unable to capture a prey from a school and suffered a significant confusion effect with increasing prey density. The effect, however, was limited in the long run, as the perch was a very effective predator in its hunting strategy where it singled out and repeatedly attacked single prey irrespective of prey density or school size. Pikeperch and pike were able to attack and capture prey at any prey density equally successfully and thus did not suffer from a confusion effect. Neither did these predators receive any apparent advantages from increasing prey density. (C) 2004 The Fisheries Society of the British Isles.},
  author       = {Turesson, Håkan and Brönmark, Christer},
  issn         = {0022-1112},
  language     = {eng},
  number       = {2},
  pages        = {363--375},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Fish Biology},
  title        = {Foraging behaviour and capture success in perch, pikeperch and pike and the effects of prey density},
  url          = {http://dx.doi.org/10.1111/j.0022-1112.2004.00455.x},
  volume       = {65},
  year         = {2004},
}