Transactions of the American Fisheries Society, Bände 41-42American Fisheries Society, 1912 |
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Seite 68
... inches and perhaps more in depth . In fact , it was filthy all over the bottom of the ponds . But that condition has been entirely done away with at Blooming Grove . The ponds are kept clean and the food supply has been somewhat re ...
... inches and perhaps more in depth . In fact , it was filthy all over the bottom of the ponds . But that condition has been entirely done away with at Blooming Grove . The ponds are kept clean and the food supply has been somewhat re ...
Seite 83
... inches . Fortunately , we had begun our chemical determinations some time before this rise , and we continued them through it and for a considerable time thereafter , so that we were able to see what the effect of these flooding rains ...
... inches . Fortunately , we had begun our chemical determinations some time before this rise , and we continued them through it and for a considerable time thereafter , so that we were able to see what the effect of these flooding rains ...
Seite 85
... inches deep ; and a very considerable number of these rock bass made nests where more or less dead vegetation such as grass and leaves existed . The fish would hollow out a place and deposit their eggs on the dead leaves , grass , etc ...
... inches deep ; and a very considerable number of these rock bass made nests where more or less dead vegetation such as grass and leaves existed . The fish would hollow out a place and deposit their eggs on the dead leaves , grass , etc ...
Seite 86
... inches in length were placed in a pond during the spring with about 250 spawning bass . When the pond was drained early in September we found only four old goldfish . However , during the summertime we saw many young goldfish along the ...
... inches in length were placed in a pond during the spring with about 250 spawning bass . When the pond was drained early in September we found only four old goldfish . However , during the summertime we saw many young goldfish along the ...
Seite 87
... inches of the shore to spawn . They seemed to be afraid of the bass and observations went to show that they had good reasons for their fear , for the bass were seen swimming near the shores watching for them . When a goldfish was thrown ...
... inches of the shore to spawn . They seemed to be afraid of the bass and observations went to show that they had good reasons for their fear , for the bass were seen swimming near the shores watching for them . When a goldfish was thrown ...
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American Fisheries Society black bass bloodworms blue pike Bower breeding brook trout Bureau of Fisheries carp catch catfish caught cestode Colo Colorado Committee crappie cysts Denver disease ditches dogfish eggs Erie FEARING feeding Fish and Game Fish Commission fish culture fish culturist fish hatchery fishermen fishway flesh fresh-water Game and Fish gill goitre goldfish grayling grounds hatched hook Illinois River inches infection interest irrigation Kansas KOPPLIN Lake land large number larvæ license matter MEEHAN meeting miles Minn natural Non-resident number of fish Ohio oyster paper parasites Pennsylvania pike pike-perch plants ponds pounds PRESIDENT PROF PROFESSOR DYCHE propagation protection rainbow trout rock bass salmon screens seal season Secretary shad spawning species station streams striped bass supply taken THOMPSON tion trematodes U. S. Bureau WARD Warden Washington whitefish worms York City young fish