Salmon escapement

Salmon escapement is the amount of a salmon population that does not get caught by commercial or recreational fisheries and return to their freshwater spawning habitat.[1] Estimates of these amount are calculated with statistical analysis using data collected during that particular run season. These estimations help produce fishing quotas for the return year of the juveniles born for that years run, or can be used to determine the health of a salmon stock.

Estimating escapement for salmon can be done several ways: The most commonly used method is the area-under-the-curve model,[2] and other methods include the change-in-ratio method, carcass-counting surveys, and weir-count surveys.[3]

  1. ^ "What are Escapement Goals?, Alaska Department of Fish and Game".
  2. ^ Bue, B. G., Fried, S. M., Sharr, S., Sharp, D. G., Wilcock, J. A., & Geiger, H. J. (1998). "Estimating salmon escapement using area-under-the-curve, aerial observer efficiency, and stream-life estimates: The Prince William Sound pink salmon example". North Pacific Anadromous Fish Commission Bulletin. 1: 240–250.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2014-12-11. Retrieved 2014-12-06.{{cite web}}: CS1 maint: archived copy as title (link)