246 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



G8. Do size of scales on carp indicate sex? — A. No. 



69. Are carp prolific? — A. Yes; if properly cared for. A five-year- 

 old carp ought to contain 500,000 eggs. 



70. How many young will a pair of carp produce annually ? — A. Very 

 few, if left to themselves ; a great number, if properly cared for — say 

 50,000. 



71. What arrangements are to be made at spawning time ? — A. Put 

 the spawners by themselves till tbe eggs are deposited, and then pro- 

 tect the eggs from other animals. A good way is to put hemlock 

 boughs in the pond to receive the eggs. These can be taken out cov- 

 ered with eggs and placed in water to hatch, where the eggs will not be 

 eaten or destroyed. Keep the young out of the way of enemies. 



72. Is it best to remove old fish from pond at spawning time? — A. It 

 is a good idea. See answer to last question. 



73. How long should young carp be kept in small pond before turn- 

 ing into larger pond with other fish? — A. Till large enough to defend 

 themselves. Say till they weigh a pound each. 



74. How distinguish carp spawn from frog or other spawn ? — A. Carp 

 spawn is deposited singly on branches, grasses, &c, and is about the size 

 of number 8 shot. Frog spawn is deposited in a. jelly-like mass. 



75. Do young carp resemble tadpoles? — A. No. 



XI. — ENEMIES OF CARP. 



76. Will carp destroy their young ? — A. Not if they can get any other 

 food. 



77. Will carp destroy other fish? — A. No. The carp does not injure 

 any other fish, but is injured by many kinds. 



78. Will dace hurt carp ! — A. The minnows will eat the carp eggs. 



79. Do frogs destroy the spawn offish ? — A. Yes ; they eat both spawn 

 and young fishes. 



80. Will goldfish destroy carp ami vice versa f — A. Yes. Besides they 

 will mix — hybridize. 



81. Will green frogs destroy carp ? — A. Yes; they eat eggs and young- 

 carp. 



82. Will minks destroy carp? — A. Yes; they will exterminate them. 



83. Will mud cat injure carp? — A. They will eat the eg^s and young 

 carp. 



84. Will mud-turtles eat carp ? — A. Yes, to extermination. 



85. Will roaches feed on the carp spawn? — A. Yes. 



86. Do snakes cat carpi — A. Yes. 



87. Will suckers injure carp ? — A. Yes. 



88. Will trout destroy carp?— A. Yes. 



80. How can one guard carp from frogs, , tadpoles, water rats, and 

 turtles ? — A. Kill the frogs, tadpoles, rats, and turtles. 

 01). How can 1 get tadpoles out of the pond? — A. Drain the pond. 

 91. How get rid of catfish in carp ponds? — A. Drain the pond. 



