250 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



that there is a correspondence between the abundance of 

 whiting and the temperature of the sea water. It must 

 be confessed that results like this are very tantalising and 

 make one wish for more extensive series of statistical 

 figures.* I think, too, that they indicate the value of 

 exact hydrographical investigations. 



The form of the curve for whiting should be noticed. 

 This curve is constructed from a great number of observa- 

 tions and probably yields a tolerably accurate picture of 



Jany. Feby. Mar Abnl. May June. Jul/ Avq. Sept. Oct Nov. Dec. 



Fig. 9. Relation between abundance of immature whiting and the 



temperature of the sea. 



the abundance of young whiting on the Mersey Shrimping 

 Grounds. There is a minor maximum of abundance of 

 whiting in the month of March. This is due to an 

 immigration of fish of the previous year's spawning. 

 Then in June the fish become scarce and immediately 

 begin to become more abundant, attaining the maximum 



* It ought to be possible bo obtain dailj temperature records 

 from the various lightships off the coasts of Lancashire and Wales. 

 I would BUggest that this be attempted. 



