| 年代：1945 |
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Volume 73 issue 1
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| 31. |
The Catfish Fishery of Virginia |
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Transactions of the American Fisheries Society,
Volume 73,
Issue 1,
1945,
Page 364-372
R.Winston Menzel,
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摘要:
The catfish fishery of Virginia is conducted mainly on the James River and its tributaries, and on the Potomac River. The approximate average sizes of catfish taken in the commercial catches are: Channel catfish, slightly over 1 pound; white catfish, about 1 pound; and bullheads, almost one-half pound. On the basis of catch records of individual fishermen of the James River, it is concluded that the amount of fishing effort has more than doubled since 1929. Although there has been a marked increase in the amount of gear used, the volume of catch has not increased proportionately. A decrease in the average size of fish in the commercial catch seems to have occurred.
ISSN:0002-8487
DOI:10.1577/1548-8659(1943)73[364:TCFOV]2.0.CO;2
出版商:Taylor & Francis Group
年代:1945
数据来源: Taylor
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| 32. |
Production of Indiana Hatcheries in 1942 |
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Transactions of the American Fisheries Society,
Volume 73,
Issue 1,
1945,
Page 373-376
WilliamE. Ricker,
HarrellF. Mosbaugh,
Maurice Lung,
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摘要:
Live weights of fish produced in three hatcheries of central and northern Indiana were about 75 pounds per acre of largemouth and smallmouth black bass, 105 pounds of spotted or Kentucky bass, and 210 pounds of bluegills and redear sunfish. An experimental pond of year-old bluegills and redear sunfish increased in weight by 366 pounds per acre. The total annual production of warm-water fish for stocking in Indiana is estimated as about 16 tons.
ISSN:0002-8487
DOI:10.1577/1548-8659(1943)73[373:POIHI]2.0.CO;2
出版商:Taylor & Francis Group
年代:1945
数据来源: Taylor
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| 33. |
The Effects of Various Fertilizers on Plant Growths and their Probable Influence on the Production of Smallmouth Black Bass in Hard-Water Ponds |
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Transactions of the American Fisheries Society,
Volume 73,
Issue 1,
1945,
Page 377-393
EugeneW. Surber,
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摘要:
The bass ponds supplied with hard water at the U. S. Fishery Experimental Station, Leetown, West Virginia, are naturally unproductive of fish, due to impenetrable growths of Chara which invade them soon after they are filled and persist throughout the period of their operation.
ISSN:0002-8487
DOI:10.1577/1548-8659(1943)73[377:TEOVFO]2.0.CO;2
出版商:Taylor & Francis Group
年代:1945
数据来源: Taylor
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| 34. |
Restoration and Management of the New England Alewife Fisheries with Special Reference to Maine |
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Transactions of the American Fisheries Society,
Volume 73,
Issue 1,
1945,
Page 394-424
GeorgeA. Rounsefell,
LouisD. Stringer,
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摘要:
To augment the fish supply in New England increased attention is being accorded to the alewife. Through neglect, obstructions to migration, overfishing, and other causes, the alewife populations have been reduced greatly. A survey of the coastal streams of Maine disclosed many streams that can be returned to production by building fishways or modifying present fishways, in conjunction with a program of restocking and proper management methods. During the 1943 season, barren spawning areas (lakes) on 13 streams were stocked with alewives and observations indicated successful production and survival of young. Recommendations are made for the removal of obstructions or the construction of fishways on 17 streams.
ISSN:0002-8487
DOI:10.1577/1548-8659(1943)73[394:RAMOTN]2.0.CO;2
出版商:Taylor & Francis Group
年代:1945
数据来源: Taylor
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