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Northern PikeEcology, Conservation, and Management History$
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Rodney B. Pierce

Print publication date: 2012

Print ISBN-13: 9780816679546

Published to Minnesota Scholarship Online: August 2015

DOI: 10.5749/minnesota/9780816679546.001.0001

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Recreational and Commercial Fishing

Recreational and Commercial Fishing

(p.71) Chapter 2 Recreational and Commercial Fishing
Northern Pike

Rodney B. Pierce

University of Minnesota Press

This chapter examines the effects of fishing on northern pike populations. In lakes where pike have good access to spawning and nursery habitat, overfishing generally leads to higher densities of small pike because long-term exploitation can result in compensatory recruitment, where fishing actually stimulates the addition of new small pike to the population. An 11-year study at Heming Lake, Manitoba, showed that although pike populations increased with growing fishing pressure, the average size of pike declined. Another study found that the age when pikes matured corresponded with their mortality rates. Increasing levels of fishing intensity seemed to induce higher total mortality rates and earlier ages at first reproduction.

Keywords:   overfishing, northern pike populations, spawning, nursery habitat, Heming Lake, Manitoba

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