70 



Fishery Bulletin 97(1), 1999 



1.0- 



t 

 o 

 U 



1.0 n 



0.5- 



0.1 - 



1994 



Effort versus 

 temperatiire 



200 



Distance from port (km) 



100 



200 



Figure 7 



Fourth order polynomials as shown in the bottom of Figiire 5, but for catch per trap haul 

 and trap hauls separately, for the years in which significant correlations of daily tempera- 

 ture and catch per trap haul were found at Port Bickerton (199 1 , 1994 ). Also shown is the 

 polynomial curve for individual fishermen's daily effort versus daily average tempera- 

 tures in their area in 1994. Individual points have been omitted for clarity, but their dis- 

 tribution is similar to the bottom of Figure 5. 



ning of DFO's lobster logbook program. Their con- 

 tinuing efforts increase the value of this database 

 each year. The cooperation of Randy Baker, Sean 

 Smith, and fishermen of the Fishermen's and Scien- 

 tists' Research Society is gratefully acknowledged for 

 access to additional data for the 1994 season, includ- 

 ing temperatures. Ed Verge provided historical tem- 

 perature data collected by the Physical and Chemical 

 Sciences Branch, DFO, and Ron Duggan summarized 

 much of the data for analysis. Bob Roger and Steve 

 Smith provided statistical advice, and John Tremblay 

 and Doug Pezzack reviewed early versions. I am par- 

 ticularly indebted to three anonymous reviewers whose 

 suggestions significantly improved the manuscript. 



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