Metal contaminants for modelling lobster ( Homarus americanus) migration patterns in the Inner Bay of Fundy, Atlantic Canada

A method, which uses metal compositions in lobster digestive glands as natural environmental tags, has been developed to trace lobster movements. Lobsters were collected from three selected sites, Minas Channel, Minas Basin, and Cobequid Bay, Inner Bay of Fundy, New Brunswick, Canada, that were know...

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Bibliographic Details
Published in:Marine pollution bulletin 2002-02, Vol.44 (2), p.134-141
Main Authors: Chou, C.L, Paon, L.A, Moffatt, J.D
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Biological and medical sciences
Canada, Fundy Bay
Environmental Monitoring
Fundamental and applied biological sciences. Psychology
Homarus americanus
Indicator species
Lobster
Marine
Metals
Metals, Heavy - analysis
Metals, Heavy - pharmacokinetics
Migration
Models, Theoretical
Movement
Nephropidae - physiology
Pollution monitoring
Sea water ecosystems
Seasons
Synecology
Water Pollutants - analysis
Water Pollutants - pharmacokinetics
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Summary:A method, which uses metal compositions in lobster digestive glands as natural environmental tags, has been developed to trace lobster movements. Lobsters were collected from three selected sites, Minas Channel, Minas Basin, and Cobequid Bay, Inner Bay of Fundy, New Brunswick, Canada, that were known to be contaminated with Cu. Five metal variables (Ag, Cd, Cu, Mn and Zn) were processed for principal component analysis (PCA). Metal concentration and burden models were investigated and PCA was able to differentiate lobsters from the respective catch sites. The method was applied to investigate the May and June lobsters collected at the three sites to determine the migration rate during this period of the fishing season. The results show a high level of mixing at Minas Basin and Cobequid Bay in June, and lobster movement inward toward the inner reaches of the bay, with very limited movement outward from the inner bay.
ISSN:0025-326X
1879-3363
DOI:10.1016/S0025-326X(01)00192-8