of the Fishery Board for Scotland. 327 



Table XIV. 



Ripe and Unripe Spent Mackerel. 





Clyde and Barra. 

 (June and July). 



Stornoway 

 (August). 



Aberdeen 

 (Aug. and 

 Sept.). 



Kilbrennan 



Sound 

 (October). 





Ripe. 



Unripe. 



Ripe. 



Unripe and 

 Spent. 



Unripe and 

 Spent. 



Unripe and 

 Spent. 



Length — 

 cm. 





2 





2 



? 



2 



6 



2 



y 



6 



2 



6 



2 



26 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 

 43 



1 

 1 



5 

 5 

 16 

 12 

 21 

 17 

 10 

 4 

 4 

 1 

 1 

 2 

 1 



i 

 i 



8 

 19 

 10 

 18 



25 



3 

 6 

 6 

 4 

 1 

 2 



9 



2 



1 

 1 



1 



i 

 i 

 i 

 i 



- 



2 

 2 



- 



i 



1 



4 

 1 



2 



I 



2 

 2 



- 



l 

 l 



3 



3 

 1 



- 



1 

 3 

 11 

 21 



32 

 31 



8 



3 



i 



5 

 15 

 32 

 19 

 20 



2 



1 



3 

 2 

 2 



- 



l 

 l 



2 

 1 



- 



Totals, 



105 



118 



5 



4 



4 



i 



9 



4 



9 



112 



95 



7 



5 



The Spaivning of the Mackerel. 



A certain amount of evidence bearing on the spawning season of the 

 mackerel has been afforded by the fishes examined during this research. 

 Among the mackerel got in Loch Fyne and at Barra in June and July 

 105 males and 118 females were ripe; four females were unripe, and five 

 males ripe or spent; four specimens of undetermined sex were unripe {vide 

 Table XIV.). The total of ripe females included seven spent fish. Twenty- 

 three mackerel were obtained from Stornoway on August 13th; of these, 



