Ecology of the burrowing amphipod, Pontoporeia affinis, in Lake Michigan / by Wayne Paul Alley.

TABLE OF CONTENTS
Page
LIST OF TABLES..................... vi-vii
LIST OF FIGURES....................... v-iii-ii
ABSTRACT.............................................. xiii-xvi
INTRODUCTION...................................1
Research Plan................... 3
METHODS AND MATERIALS................. 9
Field Sampling Procedures................ 9
Long-Term Study Area.................... 9
Short-Term Study Area................ 16
Laboratory Procedures..................... 18
Long-Term Study Area................ 18
Short-Term Study Area...................... 20
RESULTS........................... 22
Life History and Reproduction..................... 22
Patterns of Spatial Distribution.............. 32
Short-Term Study Area................... 32
Long-Term Study Area................ 51
Interspecific and Intraspecific Associations...... 54
Environmental Relationships................54
Environmental Parameters Treated Individually... 66
Depth....................66
Time............................... 66
Bottom Temperature............... 66
Sediment Type.................. 70
Percent Carbon in the Sediment.......70
Distance from Shore.........77
Stepwise Multiple Regression Analysis of
Environmental Parameters.............. 77
Seasonal Distribution..................... 86
Patterns of Spatial Abundance............ 96
DISCUSSION............................ 101
Reproduction........................ 101

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