TRANSPORT OF OVA AND FRY. 83 



both fish and spawn might render their numbers, to 

 an extent, harmless. 



The larger fish are, the more difficult it becomes 

 to transport them. Fish so tenacious of life as eels, 

 tench, carp, and even jack, may be transported with 

 tolerable ease. The salmonidse require more care 

 and attention. In Holland,, tench and carp are con- 

 veyed to market in wet moss, are put into tanks, and 

 if not sold are re-consigned to the wet moss, and taken 

 home again. Young salmon, trout, or grayling are 

 more difficult to transport, particularly salmon. The 

 best apparatus for moving the larger fish is Mr. Eyre's, 

 fish-carrier. This is a large vessel, with a force- 

 pump attached, by means of which air can be driven 

 through the water. 1 Thus the water is kept aerated 

 and wholesome. When this apparatus is put in 

 action, fish that have previously appeared sickly, and 



1 The following description of the Fish-carrier is from the pen of 

 Mr. Eyre himself : 



" The apparatus consists of a zinc cylinder, about three feet high 

 and two feet diameter, with a strong iron handle running round 

 the middle. To the top a small force-pump is attached, and by this 

 fresh air is forced through a star-shaped distributor at the bottom 

 of the cylinder. A ring-net, to bring the fish up for inspection, 

 and a loose concave rim, to prevent splashing over, completes it." 



The reader can extemporize a fish-carrier from a nine-gallon or 

 smaller cask ; this must be thoroughly sweetened in the first place. 

 Fasten a small force-pump down the inside, and from the bottom of 



G2 



