14 



As showu by the table of the daily and monthlj' hauls of whelks, the 

 fishery was small iu the month of April, increasiug in May aud most abundant 

 in June, in whieh month 1045 half-bushels (»Skæpper«) of whelks were fished, It 



Thisted Bredning. Number of Buccinum. 34 stations with tbe 1,2 m" bottom-sampler. 

 The area fished with hive-traps is indicated at A. 



looked as if July would be a good month, but from the 19th to the 27th of July 

 the fishery was very bad; a phenomenon which occurred simultaneously with a 

 great mortality among the plaice caught in the nets; not that these were all attacked 

 by the whelks, but many, though untouched by the whelks, were nevertheless dead 

 in the nets. I imagine that both phenomena were connected with the specially 



