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Spatial and temporal distribution of fish and zooplankton in a shallow lake

Romare, Pia LU ; Berg, Søren; Lauridsen, Torben and Jeppesen, Erik (2003) In Freshwater Biology 48(8). p.1353-1362
Abstract
1. We performed both a large- and a small-scale echo sounding study on the spatial and

temporal distribution of fish (mainly roach, Rutilus rutilus and perch, Perca fluviatlis), as

well as a small-scale study of zooplankton distribution in the small, shallow and eutrophic

Lake Hanebjerg in Denmark. In the small-scale study, sampling was conducted in open

water as well as in the edge zone immediately outside two different types of vegetation.

2. Fish daytime abundances differed between the northern and the southern parts of the

lake and, on a small scale, small fish aggregated in the edge zones during day, preferably

outside dense emergent vegetation. Copepods avoided emergent... (More)
1. We performed both a large- and a small-scale echo sounding study on the spatial and

temporal distribution of fish (mainly roach, Rutilus rutilus and perch, Perca fluviatlis), as

well as a small-scale study of zooplankton distribution in the small, shallow and eutrophic

Lake Hanebjerg in Denmark. In the small-scale study, sampling was conducted in open

water as well as in the edge zone immediately outside two different types of vegetation.

2. Fish daytime abundances differed between the northern and the southern parts of the

lake and, on a small scale, small fish aggregated in the edge zones during day, preferably

outside dense emergent vegetation. Copepods avoided emergent vegetation, while

cladocerans showed no habitat preference. Both small fish and cladoceran numbers were

found to be higher during night than day.

3. The relative abundance (number per sample) of cladocerans in the edge zone

immediately outside vegetation was negatively correlated with the relative abundance of

fish in that zone. There was no correlation between cladoceran and fish abundance in open

water, or between the relative abundance of copepods and fish.

4. The presence of pelagic piscivores in combination with avoidance behaviour of both fish

and zooplankton is a likely explanation for the observed distribution of small fish and

cladocerans in Lake Hanebjerg. Both small- and large-scale distribution patterns may be

dependent on the type and distribution of complex structure in the lake. Even in a small

lake, large-scale patterns may affect the interpretation of small-scale data. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cladocerans, distribution, littoral landscape, littoral–pelagic coupling, roach
in
Freshwater Biology
volume
48
issue
8
pages
1353 - 1362
publisher
Wiley-Blackwell
external identifiers
  • scopus:0042701441
ISSN
0046-5070
DOI
10.1046/j.1365-2427.2003.01081.x
language
English
LU publication?
yes
id
3fb94a41-efa2-4ff9-9288-0ff0472aecc7 (old id 941600)
date added to LUP
2008-01-22 13:39:56
date last changed
2018-07-15 03:35:11
@article{3fb94a41-efa2-4ff9-9288-0ff0472aecc7,
  abstract     = {1. We performed both a large- and a small-scale echo sounding study on the spatial and<br/><br>
temporal distribution of fish (mainly roach, Rutilus rutilus and perch, Perca fluviatlis), as<br/><br>
well as a small-scale study of zooplankton distribution in the small, shallow and eutrophic<br/><br>
Lake Hanebjerg in Denmark. In the small-scale study, sampling was conducted in open<br/><br>
water as well as in the edge zone immediately outside two different types of vegetation.<br/><br>
2. Fish daytime abundances differed between the northern and the southern parts of the<br/><br>
lake and, on a small scale, small fish aggregated in the edge zones during day, preferably<br/><br>
outside dense emergent vegetation. Copepods avoided emergent vegetation, while<br/><br>
cladocerans showed no habitat preference. Both small fish and cladoceran numbers were<br/><br>
found to be higher during night than day.<br/><br>
3. The relative abundance (number per sample) of cladocerans in the edge zone<br/><br>
immediately outside vegetation was negatively correlated with the relative abundance of<br/><br>
fish in that zone. There was no correlation between cladoceran and fish abundance in open<br/><br>
water, or between the relative abundance of copepods and fish.<br/><br>
4. The presence of pelagic piscivores in combination with avoidance behaviour of both fish<br/><br>
and zooplankton is a likely explanation for the observed distribution of small fish and<br/><br>
cladocerans in Lake Hanebjerg. Both small- and large-scale distribution patterns may be<br/><br>
dependent on the type and distribution of complex structure in the lake. Even in a small<br/><br>
lake, large-scale patterns may affect the interpretation of small-scale data.},
  author       = {Romare, Pia and Berg, Søren and Lauridsen, Torben and Jeppesen, Erik},
  issn         = {0046-5070},
  keyword      = {cladocerans,distribution,littoral landscape,littoral–pelagic coupling,roach},
  language     = {eng},
  number       = {8},
  pages        = {1353--1362},
  publisher    = {Wiley-Blackwell},
  series       = {Freshwater Biology},
  title        = {Spatial and temporal distribution of fish and zooplankton in a shallow lake},
  url          = {http://dx.doi.org/10.1046/j.1365-2427.2003.01081.x},
  volume       = {48},
  year         = {2003},
}