Body Size Variation in Young of the Year (YOY) Brook Trout (Salvelinus fontinalis)

Questions

  1. What effect does Growth Rate have on Brook Trout YOY body size distribution?
  2. What effect does Emergence Date have on Brook Trout YOY body size distribution?
  3. Can we quantify the effects of these two variables?

Conceptual Model

Simulated Data

Same Emergence Date - Different Growth Rate

Same Emergence Date - Different Growth Rate

Simulated Data effect on Body Size

Growth Rate Vs Body Size

Emergence Date Vs Body Size

Stream Data

Obear Brook Size Distribution vs Emergence Date (2015-07-13)

Obear Brook Growth Rate vs. Size Distribution (2015-07-13)

Obear Brook Emergence vs. Size Distribution (2015-07-13)

Otolith Dimensions vs Body Size

Otolith Dimensions vs Body Size ( By River )

Predicted Fork Length vs Measured Fork Length

  • Compare
    • Fork Length Measured on date sacrificed.
    • Fork Length calculated from otolith size / fork length relationship.

  • Points are fork length measured on date sacrificed.

Somatic Growth Calculated from Otolith Growth ( By River )