Fishery Biology and Management 22'481

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Fishery Biology and Management - 22.481
Dr. D.M. Gillis Office Z305 Phone [phone]
Class T,Th 1130 -1300 Z319 Lab Th 1430
-1730 Z400 Office by appointment Hours
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Course Overview
For all methods of analyses to be examined
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Approach
Learn in doing
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Evaluation
Midterm 30 Paper Presentation 10 Final
Exam 40 Lab Quizzes (3) 15 Lab
Participation 5
Lab Quizzes - choose and perform the
appropriate calculation (from labs) to
answer a question about a data set or
model - use labs/text for reference
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Text Book
Modelling and Quantitative Methods in Fisheries
- M. Haddon, 2001
Other General References
Quantitative Fish Dynamics - T.J. Quinn II
R.B. Deriso, 1999 Quantitative Fisheries Stock
Assessment - R. Hilborn C.J. Walters,
1992 Computation and Interpretation
ofBiological Statistics of Fish Populations -
W.E. Ricker, 1975 Introduction to Mathematics
for Life Scientists - E. Batshcelet, 1971 Excel
for Dummies (or a similar book)
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Background
1. Name? 2. What is your background? 3. Why did
you take this course? 4. What do you plan to do
after graduation?
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Importance of Fisheries in Manitoba
A PROFILE OF MANITOBA'S COMMERCIAL
FISHERY Manitoba Conservation, Fisheries Branch,
May 26, 2003
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Manitoban Fish Species Valued Above 1,000,000
in 1992-93
A PROFILE OF MANITOBA'S COMMERCIAL
FISHERY Manitoba Conservation, Fisheries Branch,
May 26, 2003
Manitobas Quota Species Pickerel
Stizostedion vitreum vitreum Sauger
Stizostedion canadense Whitefish Coreginus
clupeaformis
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Review of Commercial Gear Types
- Most fish in Manitoba Caught by Gillnets -
Many other gears in world fisheries
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Fishing by hook line

• hand lines
• longlines
• trolling

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Creating nets from lines

• Allowed the development of more efficient (fish
  caught/person) gears
• date back to Neolithic times
• Woven flax nets with sinkers from Danish middens
  Swiss lake sites

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Fishing by nets

• containment
• mobile traps
• lift nets
• seines
• trawls
• entanglement
• gill nets
• fixed (temporarily)
• midwater set
• bottom set
• drift
• trammel nets

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Fishing by traps

• traps without nets
• pots
• stone traps
• some weirs
• traps with nets
• cod traps
• sablefish traps

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Fishing by Seine
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Fishing by Trawl
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Fishing by gillnet
- also set nets set from shore at low tide
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Fishing by other means

• cast nets
• lift nets
• harpoons
• divers
• poisons
• whatever works

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Current Issues in Fisheries
Different Perspectives
Industry Science