Ecology of the burrowing amphipod, Pontoporeia affinis, in Lake Michigan / by Wayne Paul Alley.
83 TABLE 5. The proportion of the multiple correlation coefficient (R) and the coefficient of determination, expressed as a percentage, (R2) that each statistically significant variable contributes to the multiple regression equation of the four depth zones in Lake Michigan. The dependent variable of the multiple regression equation (Y) is represented by the numbers of Pontoporeia affinis/m2. Variable R R2 10-35 m X10 Sphaeriidae.559 31.3 X2 Depth.084 10. 1 X3 Depth squared. 039 5. 1 X4 Surface temperature o 031 4. 5 X6 Sediment type. 028 3. 9 X8 Distance from shore. 015 2. 2.756 57. 1 Y =.756 + 7. 927X2 -. 122X3 + 1.485X4 - 7. 106X6 - 4. 074X8 + 3. 431Xo1 36-65 m X10 Sphaeriidae.556 30.9 X6 Sediment type. 043 5. 0.599 35.9 Y = 48. 104 - 3.804X6 + 2.757X10 66-105 m X10 Sphaeriidae.586 34.4 X3 Depth squared.033 5 2 X11 Chironomidae.034 3. 0 X9 Oligochaeta 024 3. 6.677 45.6 Y = 39. 592 -.009X3 + 1. 032X + 1.766X10 + 926Xl > 105 m X2 Depth.769 59. 1 X9 Oliogochaeta.037 5. 9 X10 Sphaeriidae o 020 3. 3.826 68. 3 Y = 49. 216 -. 133X2 + 1. 371X9+ 1. 732X10
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About this Item
- Title
- Ecology of the burrowing amphipod, Pontoporeia affinis, in Lake Michigan / by Wayne Paul Alley.
- Author
- Alley, Wayne Paul.
- Canvas
- Page 83
- Publication
- Ann Arbor, Mich. :: University of Michigan,
- 1968.
- Subject terms
- Amphipoda -- Michigan, Lake.
Technical Details
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- Great Lakes Digital Library
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https://name.umdl.umich.edu/4737944.0001.001
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"Ecology of the burrowing amphipod, Pontoporeia affinis, in Lake Michigan / by Wayne Paul Alley." In the digital collection Great Lakes Digital Library. https://name.umdl.umich.edu/4737944.0001.001. University of Michigan Library Digital Collections. Accessed May 18, 2025.