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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.1, 2009³â, pp.58-66
Radio tagÀ» ÀÌ¿ëÇÑ ³«µ¿°­ »ó·ù¿¡ ¼­½ÄÇÏ´Â ¿­¸ñ¾îÀÇ À̵¿¾ç»ó
( Migration Patterns of Brachymystax lenok tsinlingensis Using Radio Tags in the Upper Part of the Nakdong River )
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The telemetry of eight adult manchurian trouts (Brachymystax lenok tsinlingensis) in the upper part of the Nakdong River, which is the southern limit of distribution of manchurian trout on the Korean peninsula, was used to examine migration patterns and evaluate characteristics of over-wintering and the spawning season between December, 2007 and May, 2008. Based on the tracking data, the tagged fish showed a limited migration between adjacent pools, moving only up to $8.6m;day^{-1}$ during the winter season (December to February). Hydraulic conditions of over-wintering pool areas were, ca. 1m depth, slow moving surface water with areas of sand and gravel. The migration of tagged individuals was successful, moving up to $96.2m;day^{-1}$ during the spawning season. Two tagged individuals (BL4, BL6) exhibited upstream migration, whereas others showed downstream movements. The timing of upstream migration of the two individuals was consistent with an increasing phases of water level and discharge. The fishes migrating toward the down stream moved to the wide pool areas downstream, where they spent the summer season for the growth.
 
Ű¿öµå
Brachymystax lenok tsinlingensis;radio telemetry;migration;spawning;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.1, 2009³â, pp.58-66
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912651518756)
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