Lecture 4.1 Manipulating Fish and Wildlife Resources: Harvest Management

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Lecture 4.1Manipulating Fish and Wildlife
Resources Harvest Management

• Natural Resources 250
• Michael J. Hansen
• Professor of Fisheries

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Outline

• Introduction.
• Fish vs. wildlife.
• Participation.
• Gear.
• Species.

• Numbers.
• Sex.
• Size.
• Seasons.
• Areas.

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Introduction

• Biological goals
• Exploitation
• Spawning
• Growth
• Sociological goals
• Satisfaction
• Allocation
• Separation

• Informational goals
• License holders
• Federal Aid allocations

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Fish versus Wildlife

• Fish may be caught and released
• Wildlife must be harvested
• Fish growth is indeterminate
• Wildlife growth is more fixed
• Fish may be managed by water body
• Wildlife are managed more regionally

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Participation

• Annual licenses
• Special use stamps
• Short-term licenses
• Commercial licenses
• Tribal rights

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Gear Restrictions

• Angling.
• Hunting.
• Spearing.
• Commercial fishing.

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Species Restrictions

• Individual species.
• Groups of species.

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Numerical Restrictions

• Daily or nightly limits.
• Aggregate limits.
• Possession limits.
• Annual limits or quotas.
• Catch and release.

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Sex Restrictions

• Different plumage.
• Presence of horns or antlers.
• Different size.

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Size Restrictions

• Minimum length limits.
• Maximum length limits.
• Slot length limits.

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Closed or Open Seasons

• Closed spawning season.
• Open hunting season.
• Closed periods of day.

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Closed Areas

• Refuges.
• Restricted use areas.
• Geographic management areas.

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