The Salmon Purse Seine Max Ledbetter Home Excerpts From The News Public Discussion Summary References To My Work Links More Links Old Version Of This Site Add Link Online Payments Greenzap.com

In partial summary, the question is one of fishing power--the ability of gear, boats, or fleets, in the B.C. and P.E.I. cases and others, to exploit or overexploit fish stocks. Without a historical perspective based on quantitative (and innovative) field research, we are doomed to repeat our work loads: In the absence of extensive (and often necessarily alternative) time series of fishing effort and effectivity (fishing power), stock assessment and fisheries management become absurd. Like they said on P.E.I., a fleet (or transient cluster) of purse seiners can wipe out a stock (anywhere in the world). Max Ledbetter References Ledbetter, M. 1986. Competition and information among British Columbia salmon purse seiners. Ph.D. diss., Univ. British Columbia, Vancouver, B.C. Hilborn, R. and M. Ledbetter. 1985. Determinants of catching power in the British Columbia salmon purse-seine fleet. Can. J. Fish. Aquat. Sci. 42: 51-56. Ledbetter, M. 1981. Guest editorial. Western Fisheries 103: 17. Ledbetter, M. and R. Hilborn. 1981. A numerical overview of salmon run timings in British Columbia catch areas. Cooperative Fisheries Research Unit (University of British Columbia), Report Number 1. Hilborn, R. and M. Ledbetter. 1979. Analysis of the British Columbia salmon purse-seine fleet: dynamics of movement. J. Fish. Res. Board Can. 36: 384-391.