Over-wintering growth and losses in a small population of the threespine stickleback, Gasterosteus aculeatus (L.), in mid-Wales

Robert J. Wootton

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15 Citations (SciVal)

Abstract

Mark-recapture was used to estimate the population abundance of threespine stickleback, Gasterosteus aculeatus, in a backwater of Afon Rheidol in mid-Wales in autumn and early spring, from 1984 to 1998. For the 0+ cohort, there was no evidence of density-dependent losses (mortality and emigration) or growth in the over-wintering period. No systematic size-dependent loss was detected. There was an inverse relationship between autumn abundance and the annual rate of change in abundance of the 0+ cohort.
Original languageEnglish
Pages (from-to)476-481
Number of pages6
JournalEcology of Freshwater Fish
Volume16
Issue number4
DOIs
Publication statusPublished - 02 Mar 2007

Keywords

  • density-dependence
  • stochastic
  • backwater
  • size-structure

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