MARINE BIOLOGICAL STATION AT PORT ERIN 



13 



years during which the hatchery has been in operation 

 to twenty-five and a half millions. 



Fig. 3. — Mr. T. Cregeen collecting fish eggs from the surface of the 

 spawning pond, from a photo by Edwin Thompson. 



"The numbers of eggs collected and of larvae set free 

 during the season were as follows: — 



*gs collected. 



Date. L 



arvae set free. 



Date. 



90,500 .. 



. February 22—26 



78,000 ... 



March 22 



253,500 .. 



February 27— March 3 



184,500 ... 



„ 27 



218,000 .. 



March 4 and 5 



148,000 .. 



„ 29 



179,000 .. 



,, 6 and 8 



146,000 .. 



„ 30 



196,000 .. 



„ 9 to 12 



126,000 ... 



„ 31 



957,000 .. 



„ 13 to 17 



766,500 .. 



. April 5 



737,000 .. 



„ 18 to 20 



609,000 .. 



„ « 



732,000 .. 



„ 22 and 23 



603,000 ... 



„ io 



545,000 .. 



„ 24 to 26 



400,000 .. 



„ 13 



391,500 .. 



„ 27 



286,500 .. 



„ H 



189,000 .. 



„ 2'.) 



117,000 ... 



„ 1 - r > 



990,000 .. 



,. 30- April :; 



754,000 .. 



„ 19 



