| 湖北省黄冈专区中小型湖泊渔业增产的初步经验 |
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| 引用本文： | 张幼敏.湖北省黄冈专区中小型湖泊渔业增产的初步经验[J].水产学报,1965,2(3):1-12. |
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| 作者姓名： | 张幼敏 |
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| 作者单位： | 黄冈专署水产局 |
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| 摘 要： | 一、绪说 黄冈专区共有湖泊453个,总面积185.7万亩,其中除4个“敞水湖”(面积90万亩)外,余者均可开展湖泊养殖。 本区的湖泊主要分布在长江两岸地区,多系沿江冲积平原的洼地,是自然或人工堰塞成的湖。常年水深在5米以下,一般在2～3米之间。湖底平坦,湖泥较厚。岸线曲折,港湾多。大部分湖泊与长江相通,并建有堤闸,起著调节和贮水的作用。
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PRELIMINARY EXPERIENCE IN IMPROVING FISH PRODUCTION OF SOME LAKES IN THE HUANG DISTRICT OF HU-BEI PROVINCE |
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| Zhang You-min.PRELIMINARY EXPERIENCE IN IMPROVING FISH PRODUCTION OF SOME LAKES IN THE HUANG DISTRICT OF HU-BEI PROVINCE[J].Journal of Fisheries of China,1965,2(3):1-12. |
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| Authors: | Zhang You-min |
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| Institution: | Burcau of Fisheries,Huang Gong District,Hu-bei Province. |
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| Abstract: | All the lakes of the Huang Gong District of Hu--bei Province had, prior to the time of the liberation of China, been improperly used in fish production, and nothing had been done for fish management. This led to a gradual depletion of the fish resource. At that time, the annual production of those most productive lakes never exceeded ten eattres Per mow, Since the time of lihcratioai, the prvviucial fishery bureau changed its policy, and adopted some fish management programme, suvlt as fish docking, the protection of spawners and spawning ground of some desirable fish populations, introduction of fiah fries and fingerlings fro m Yangtze Piver into the lakes. These operativns have cffcrtively raised ilre fish production of the lakes.Far example,Lakc Zhu Lin with a surface area of 6,600 maw, in 1963 the annual yield reached 124.5 vatties per mow, and Lake Zhang Du with a surface area of 110,000 mows, produced 29.2 eatties per mow in 1961. For yeaxs of experience and practice, same conditions arc recognised to be importans in increasing fish production in the lakes. (1) The composition of species and density of fish populations should be suitable to the feeding capacity of the lakes. (2)The size of fingerlings of the deairablc species (Mylophugodon piccus,Ctenophyryngodon idcllus,Hypophthalmiehthys molitrix,Aristriehthys nobilis,etc.)to be planted in the lakes must be as large as pvssibie. (3)To those lakes with favorable conditivns,it is desirable to slock the fingerlings in the bays or coves of the lakes for a short lime, and then release them into the lakes wilhin the months of January to March. This process is beneficial both to the survival and the growth of the fingerlins. (4)It is of great significance that the yield of native stacks in the lakes attain 37.5% of the total production. Therefore, pravtical regulations concerning the restriction of the catchahle sixe,creel limits, protection of the spawners and the apxwning ground axe necessary to be set up in order to protect the native stacks in the lakes. (5)Inflow and outflow through the locks between the lakes and the river will draw a certain amount of fishes into the lakes to increase the production o, the lakes. Prohlema concerned, with controlling and utilizing the predstaxy fishes, xeformotion of the lakes,and the efficiency of fishing effort are also briefly discussed. |
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