MARINE BIOLOGICAL STATION AT PORT ERIN. 143 



abundance of food, both animal and vegetable, in the 

 water of the pond ; and Copepoda, &c, have been found in 

 the stomachs of the young fish. 



Finally, in setting free the hatched larva?, we are 

 careful to place them in the water well off the land, in a 

 tidal current running clear of the Island, so that they 

 may be carried to regions where we find the naturally 

 hatched fish in similar stages, and from which they will 

 make their way gradually, after metamorphosis, inwards 

 to the shore, and appear in due course as young plaice in 

 the shallow waters of our sandy bays. There they ought 

 to be allowed to feed and grow in peace until such time 

 as they move further out again, to the off-shore grounds, 

 as adult fish which can legitimately be caught by the 

 fishermen for the supply of the markets. 



i \ 



Larva] Halibut, x 13. 



