100,000 adults to the fishery and about 45,000 to 75,000 

 spawners to Northwest Basin. 



Brooks Lake 



The known natural spawning area in tributaries to 

 Brooks Lake appears to be more than adequate for the 

 number of spawners required to fully stock the lake with 

 sockeye salmon fry (Table 11). Inadequate fry recruit- 

 ment in Brooks Lake appears to be the result of inade- 

 quate escapement of spawners to the system rather than 

 a lack of sufficient spawning area. 



The large terminal tributary to Brooks Lake, Head- 

 water Creek, is 80 km long and provides at least 15 ha of 

 spawning ground, all of which is accessible to salmon. 

 Escapements of sockeye salmon adults are typically 

 < 10,000 fish (see footnote 5), even though the stream 

 could easily accommodate 100,000 or more. Factors 

 limiting the capacity of Headwater Creek to produce fry 

 should be determined before plans are developed to in- 

 crease stocks of sockeye salmon in Brooks Lake through 

 artificial propagation. 



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Koo (editor), 

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Alaska Dep. 



tlOS Government Pnnlrng Ofdce 1979—698-005 112 



