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John D. Fitzsimons

John D. Fitzsimons

D-Index & Metrics

Ecology and Evolution

D-Index
37
Citations
4408
World Ranking
6956
National Ranking
438

Overview

John D. Fitzsimons is affiliated with Fisheries and Oceans Canada in Canada. Their research primarily focuses on fish ecology and management, aquaculture nutrition and growth, with additional work in isotope analysis in ecology and physiological and biochemical adaptations. The main fields of study include environmental science as well as agricultural and biological sciences, with subfields in nature and landscape conservation, ecology, and aquatic science.

Recent publications by John D. Fitzsimons include detailed investigations into fish biology and conservation. Notable papers are:

  • Reduced thiamine utilization by Seneca Lake lake trout embryos and potential implications to restoration of lake trout in the Great Lakes, 2021, Environmental Biology of Fishes
  • Ontogenetic Dietary Changes and Thiamine Status of Lake Ontario Chinook Salmon, 2005-2006, 2021, North American Journal of Fisheries Management
  • Thiamine status of lake trout in lake Ontario and its relation to diet after the colonization of round goby, 2005-2006, 2021, Journal of Great Lakes Research

Frequent co-authors in Fitzsimons's publications include:

  • Dale C. Honeyfield
  • Scott A. Rush
  • Scott Brown
  • A. H. El-Shaarawi
  • Brian F. Lantry

Publication venues frequently featuring Fitzsimons's work are:

  • Environmental Biology of Fishes
  • North American Journal of Fisheries Management
  • Journal of Great Lakes Research

The scientist's research topics place strong emphasis on the ecological and nutritional factors affecting fish species. These topics are:

  • Fish Ecology and Management Studies
  • Aquaculture Nutrition and Growth
  • Isotope Analysis in Ecology
  • Physiological and biochemical adaptations

Best Publications

  • Lake Ontario: food web dynamics in a changing ecosystem (1970-2000)

    E L Mills;J M Casselman;R Dermott;J D Fitzsimons

  • A review of Early Mortality Syndrome (EMS) in Great Lakes salmonids. Relationship with thiamine deficiency

    J.D. Fitzsimons;S.B. Brown;D.C. Honeyfield;J.G. Hnath

  • Naturally Occurring Thiamine Deficiency Causing Reproductive Failure in Finger Lakes Atlantic Salmon and Great Lakes Lake Trout

    Jeffrey P. Fisher;John D. Fitzsimons;Gerald F. Combs;Jan M. Spitsbergen

  • Development of Thiamine Deficiencies and Early Mortality Syndrome in Lake Trout by Feeding Experimental and Feral Fish Diets Containing Thiaminase

    Dale C. Honeyfield;Joy P. Hinterkopf;John D. Fitzsimons;Donald E. Tillitt

  • Thiamine and Thiaminase Status in Forage Fish of Salmonines from Lake Michigan

    Donald E. Tillitt;James L. Zajicek;Scott B. Brown;Lisa R. Brown

  • The Effect of B-Vitamins on a Swim-up Syndrome in Lake Ontario Lake Trout

    John D. Fitzsimons

  • Implications of Thiamine Deficiency in Great Lakes Salmonines

    Scott B. Brown;John D. Fitzsimons;Dale C. Honeyfield;Donald E. Tillitt

  • Lake Trout Spawning Habitat in the Great Lakes — a Review of Current Knowledge

    J. Ellen Marsden;John M. Casselman;Thomas A. Edsall;Robert F. Elliott

  • Assessment of Lake Trout Spawning Habitat and Egg Deposition and Survival in Lake Ontario

    John D. Fitzsimons

  • Thiamine Status in Adult Salmonines in the Great Lakes

    Scott B. Brown;Dale C. Honeyfield;John G. Hnath;Martha Wolgamood

  • Thiamine analysis in fish tissues.

    S. B. Brown;D. C. Honeyfield;L. Vandenbyllaardt;G. McDonald

  • The Influence of the Niagara River on Contaminant Burdens of Lake Ontario Biota

    D.M. Whittle;J.D. Fitzsimons

  • Experimental Induction of Liver Tumours in Rainbow Trout (Salmo gairdneri) by Contaminated Sediment from Hamilton Harbour, Ontario

    C. D. Metcalfe;V. W. Cairns;J. D. Fitzsimons

  • Influences of Spawning Habitat Characteristics and Interstitial Predators on Lake Trout Egg Deposition and Mortality

    Randall M. Claramunt;Jory L. Jonas;John D. Fitzsimons;J. Ellen Marsden

  • Estimates of egg deposition and effects of lake trout (Salvelinus namaycush) egg predators in three regions of the Great Lakes

    Jory L Jonas;Randall M Claramunt;John D Fitzsimons;J Ellen Marsden

  • Carcinogenic and genotoxic activity of extracts from contaminated sediments in western Lake Ontario.

    C.D. Metcalfe;G.C. Balch;V.W. Cairns;J.D. Fitzsimons

  • Occurrence of a Swim-up Syndrome in Lake Ontario Lake Trout in Relation to Contaminants and Cultural Practices

    John D. Fitzsimons;Susan Huestis;Bill Williston

  • Egg Thiamine Status of Lake Ontario Salmonines 1995–2004 with Emphasis on Lake Trout

    John D. Fitzsimons;Bill Williston;Georgina Williston;Lisa Brown

  • Reduced egg thiamine levels in inland and Great Lakes lake trout and their relationship with diet.

    J. D. Fitzsimons;S. B. Brown;G. McDonald;D.C. Honeyfield

  • Sculpins and Crayfish in Lake Trout Spawning Areas in Lake Ontario: Estimates of Abundance and Egg Predation on Lake Trout Eggs

    John D. Fitzsimons;David L. Perkins;Charles C. Krueger

  • Thiamine Content and Thiaminase Activity of Ten Freshwater Stocks and One Marine Stock of Alewives

    John D. Fitzsimons;Bill Williston;James L. Zajicek;Donald E. Tillitt

  • Early life stage mortality syndrome in fishes of the Great Lakes and Baltic Sea

    D. G. McDonald;John D. Fitzsimons;Dale C. Honeyfield

Frequent Co-Authors

Donald E. Tillitt
Donald E. Tillitt United States Geological Survey
J. Ellen Marsden
J. Ellen Marsden University of Vermont
Timothy B. Johnson
Timothy B. Johnson Ministry of Natural Resources and Forestry
Michael T. Arts
Michael T. Arts Toronto Metropolitan University
Charles C. Krueger
Charles C. Krueger Michigan State University
John M. Casselman
John M. Casselman Queen's University
Chris D. Metcalfe
Chris D. Metcalfe Trent University
Lars G. Rudstam
Lars G. Rudstam Cornell University
Chris C. Wilson
Chris C. Wilson Ministry of Natural Resources and Forestry
Clifford E. Kraft
Clifford E. Kraft Cornell University

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