No. 3 (1920) INSHORE FISHING EXPERIMENTS 



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May 

 June 



July 



August 



September. 



1918 ... Never sighted till 26th May and continued to be 

 found till 31st May. After which no data are 

 available, till their appearance (adult 8" — 

 II" long) on 20th December 1918 was noted: 

 and they continued to be found till the end 

 of December 1918. 



1919 ... January ... Throughout found. 

 February--. Disappeared on 26th February 1919. 

 April ... Re-appeared only for one day 



(only a small quantity) on 13th 

 April 1919, never seen from the 

 next day till 2lst April 1919 but 

 these were young ones (4" — 7° 

 long). 

 Found throughout. 



Do- 

 Disappeared on 5th July 1919. 

 Not found throughout. 

 Re-appeared on 16th September 

 1 919. (Young ones f— Q" long) 

 and continued on in large num- 

 bers till the close. 

 October ... Throughout found- 

 November... Do. 



December ••• Disappeared on 3rd December 

 1919 but very sparingly found 

 occasionally till the end. 

 During this year the mackerel were invariably found in com- 

 pany with Clupea kanagurta till September and thence with 

 Clupea melanura. 



Spawning season. — The spawning season for mackerel appears to 

 be October to December and the minimum size for maturity so far 

 noted is 7*5" in length. 



The maximum length found here is 9'5", 



As during the year 1919 no young ones below 4" in length were 

 found in our catches, it is to be inferred that they go elsewhere, 

 perhaps farther out in deeper parts of the sea, for spawning. 



2. Clupea kanagurta. — This clupeid was found throughout the 

 year except March and November. The maximum catch was in 

 June ; i.e., December to February in north-east monsoon and April 



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