Changes in species interactions of the Lake Superior fisheries system after the control of sea lamprey as indicated by time series models

J. N. Stone, Y. Cohen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Interactions of fish species in the Canadian commercial fisheries changed following control of Petromyzon marinus. These changes were detected by a multivariate time series (MVTS) analysis of monthly time series of catch-per-unit-effort for lake trout Salvelinus namaycush, lake whitefish Coregonus clupeaformis, lake herring C. artedii, chubs Coregonus spp., walleye Stizostedion vitreum, and yellow perch Perca flavescens. The identified MVTS models reflected known trophic relationship among fish species and indicated that significant intraspecific interactions were more numerous than interspecific interactions. Lake trout interactions with other species appear to have changed due to stocking and diet change. -from Authors

Original languageEnglish (US)
Pages (from-to)251-261
Number of pages11
JournalCanadian Journal of Fisheries and Aquatic Sciences
Volume47
Issue number2
DOIs
StatePublished - Jan 1 1990

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