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| Changes in Fishery Production and Structure in Lakeside Region of Poyang Lake |
| ZHAO Dandan,LIU Junguo |
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Abstract In this study ,the structure characteristics of fishery production were analyzed in lakeside region of Poyang Lake from 1996 to 2008 by sector Kuzenets K value and Moore structure value .The results showed that fish gross production was increased steadily by 6% ,of which culture was main section ,and catching production was nearly steady with a little decrease . There was obviously difference in fish production between different counties in lakeside region under the natural conditions .The fish production in Nanchang county was leading among all the counties , accounting for over 1/6 of the gross fish production in lakeside region due to exceptionally natural resources .In the w hole period ,the adjustment of fishery resource structure speeded up in speed and rate ,higher than Jiangxi provinces at the same period . There was significant difference in speed and rate between different counties in lakeside region .Before 2000 ,Xinjian County had the maximal K value (6 .2) and e value (4 .1°) .After 2001 ,however ,the maximal K value and e value were observed in Poyang County ,indicating that difference in the studied counties reflected the special trait on fishery policy and natural condition .To keep the sustainability of fishery resources in Poyang Lake ,fisheries and agricultural department should speed up to adjust the sector structure additionally ,to improve the area of fish farming and rice‐fishing and to decrease the use of artificial diet and organic fertilizer in the lake . We can create health water condition for fish to make economic profit and ecological benefit in Poyang Lake .
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Received: 25 June 2015
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