11-62 



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GILL NETS 



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IT 



IT 



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10— 



TRAWLS 



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 of OPERATIONAL 

 / NO SAMPLE 



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MONTHS 



Figure 11-22. 



Monthly mean abundance of Alosa aestivalis collected 

 by gill nets and otter trawls from 1971 through 1977. 

 New Haven Harbor Station Ecological Studies Summary 

 Report, 1979. 



