Event Abstract

Pattern of movement of introduced pumpkinseed Lepomis gibbosus in artificial, post-excavation lake

  • 1 Department of Ecology & Vertebrate Zoology University of Lodz, Poland
  • 2 Salmon & Freshwater Team, Centre for Environment, Fisheries & Aquaculture Science, United Kingdom
  • 3 Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, United Kingdom

A mark-recapture study was conducted between May 2012 and September 2014 to estimate the home range, movement rate and habitat preferences of non-native pumpkinseed Lepomis gibbosus (Centrarchidae) in Emerald Lake, a deep former chalk pit in north-western Poland. Multiple (19, predominantly monthly) electrofishing runs through the lake’s littoral zone were made to determine the spatial distribution of 359 pumpkinseed fitted with passive integrated transponder (PIT) tags from two to 674 days after tagging. Of the 43 specimens re-captured (11 males, 11 females, 21 of undetermined sex), 11 pumpkinseed were detected twice and one three times. From the 56 separate detections, 39% were at the place of previous detection, which gives evidence of rather high site fidelity. The mean total for displacements was 43 m (max. = 156 m), especially males (mean = 60 m; min = 17 m, max = 119 m) and for females (mean = 44 m; min = 0 m, max. = 148 m), respectively. The highest rate of relocation was observed for autumn (49%), then consecutively for summer (36%) and for spring (15%). The most preferred sites for pumpkinseed were muddy, shallow underwater shelves overgrown with common reed (Phragmites australis), bulrush (Typha latifolia) and horsetail (Equisetum sp.) located on the east and south-east edges of the lake. This study was funded by the National Science Centre, Poland (decision No DEC-2011/01/D/NZ8/01807).

Keywords: Site fidelity, Movement rate, Home range, Non-native fish, mark-recapture, PIT-tag

Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015.

Presentation Type: Oral Presentation

Topic: Life Cycles, Migration and Connectivity

Citation: Zięba G, Janic B, Marszał L, Błońska D and Copp GH (2015). Pattern of movement of introduced pumpkinseed Lepomis gibbosus in artificial, post-excavation lake. Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.fmars.2015.03.00123

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Received: 24 Nov 2015; Published Online: 24 Nov 2015.

* Correspondence: PhD. Grzegorz Zięba, Department of Ecology & Vertebrate Zoology University of Lodz, Łódź, Poland, fringill@biol.uni.lodz.pl