Report of the Commissioner for 1875-1876 . de a strict rule that, with the excep- 894 REPORT OF COMMISSIONER OF FISH AND FISHERIES. tion of the tench (Cyprinus tinea), no other kind of fish, however harm-less, is allowed in the pond. The tench is related to the carp, but itspawns 4 to 5 weeks later, so there can be no danger of cross-breeds. Great care should be taken that no gold-fish (Cyprinus carpio auratus)•r bream (brama) get in the pond, for these fish would soon mix withthe carp and tend to degenerate the breed. Such fish should thereforebe removed or killed at once. The goldfish, espec
Report of the Commissioner for 1875-1876 . de a strict rule that, with the excep- 894 REPORT OF COMMISSIONER OF FISH AND FISHERIES. tion of the tench (Cyprinus tinea), no other kind of fish, however harm-less, is allowed in the pond. The tench is related to the carp, but itspawns 4 to 5 weeks later, so there can be no danger of cross-breeds. Great care should be taken that no gold-fish (Cyprinus carpio auratus)•r bream (brama) get in the pond, for these fish would soon mix withthe carp and tend to degenerate the breed. Such fish should thereforebe removed or killed at once. The goldfish, especially the milter, swimsin spawning-schools like the carp, and at the very same season. It thusspoils the eggs of the carp, as all eggs which it impregnates will pro-duce spotted fish, having at least a silvery streak J to J inch long andJ inch broad, between the caudal and the dorsal fin. Such bastards(the cross-breeds of gold-fish and Carassius also resemble them) do notgrow larger than gold-fish, and have as many bones. They are unfit. B A Cross-section of pond through breeding-place. for table-use and entirely unsuited for ornament, as they are neithergenuine carp nor gold-fish, and are disagreeable objects in the eyesof the scientist or connoisseur. If such fish are not removed immedi-ately the consequence will be another cross-breed during the nextspawning-season, for such a hybrid spawns, like the gold-fish, when it isa year old, and the breed of carps would degenerate still more. It isbest to kill such worthless cross-breeds at once, as they are apt to givegreat trouble. I would embrace this opportunity to impress upon every carp-culturistwho intends to make breeding-experiments with any carp procuredthrough the United States Fish-Commission, the importance of hav-ing if possible only one of three above-mentioned kinds of carp, unlesshe can have every kind in a separate pond. Thus, the commoncarp (Cyprinus carpio communis) should never be placed in the samepond with th
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Keywords: ., bookauthorunitedstatescomission, bookcentury1800, bookdecade1870
