MARINE BIOLOGICAL STATION AT PORT ERIN. 37 



The pond was then re-filled, and the large plaice 

 successfully put back. Since that time our trammel nets 

 have brought the number up to over 200, and the 

 Lancashire and Western Sea Fisheries steamer " John 

 Fell " has (through the courtesy of the Committee and of 

 the Superintendent, Dr. J. Travis Jenkins) been enabled 

 to spend a day trawling for us, with the result that 110 

 plaice have been added, making the total of our stock in 

 the pond now somewhere about 320*. From these fish we 

 hope to get abundance of spawn in the coming season. 



A number of the young plaice, 4 to 5 months old, that 

 were kept in tanks have since been measured. Four 

 samples, caught by the laboratory boy, and taken as they 

 chanced to come, amounting to 80 fish in all, were of sizes 

 ranging from f -inch to 3^- inches ; only three of them were 

 over 3 inches, and the majority were between 1^ and 

 2-inches. A very considerable proportion had a certain 

 amount of dark pigmentation on the lower surface. Out 

 of one batch of 47, 25 showed this ambi-colouration, and 

 only 22 were normal. 



Easter Class for School Teachers. 



This subject has been referred to in former Reports, 



and now that the new buildings afford the necessary 



accommodation, the L.M.B.C. has, in consultation with 



the Mature-Study Association of Teachers in Liverpool, 



drawn up the following intimation which was circulated 



last spring, and is now repeated with a few changes : — 



Special Class in Marine Biology, or Nature-Study, 



for School Teachers, to be held at Port 



Erin, Isle of Man, during the Easter 



Holidays, 1905. 



The Liverpool Marine Biology Committee, in response 



* Of these 118 have been caught at Port Erin during the Summer 

 in our trammel nets. 



