The Influence of Water Temperature on the Appearance of Common Carp Cyprinus carpio around a Set-Net in the Sounth Basin of Lake Biwa
The Influence of Water Temperature on the Appearance of Common Carp Cyprinus carpio around a Set-Net in the Sounth Basin of Lake Biwa
复制标题
琵琶湖南部流域定网周围水温对鲤鱼外观的影响
DOI：
10.18903/fisheng.44.2_113
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Masanari Matsuda
中科院分区：
文献类型：
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作者：
K. Komeyama;Y. Mitsunaga;T. Yamane;Masanari Matsuda
在琵琶湖，人们普遍认为，湖上盛行东北风或西南风时，定网渔业中鲤鱼 C}7prinus carpio 的渔获量会很好。为了研究这一现象，2003年6月25日至9月29日在琵琶湖南部流域监测了鲤鱼的出现情况、定网附近的水温和风向。通过外科手术将发射器植入到定网附近，并使用安装在定网上的接收器进行为期95天的监测。还连续记录了网附近两个深度（2.5和4.5m）的水温。温度记录仪 15 分钟。当温度升高时，标记的鱼从该区域消失，但当盛行风导致温度下降时，标记的鱼就会出现。我们的结果表明，夏季水温的变化可能会影响琵琶湖南部盆地鱼类的水平运动。
At Lake Biwa, It is commonly said that prevailing northeasterly or southwesterly wind on the lake brings good catch of common carp C}7prinus carpio in set-net fishery. In order to research this phenomenon, the appearance of comrnon carp, water temperature and winds near a set-net were monitored in the south basin of Lake Biwa from 25 June to 29 September 2003. Feur fish were surgically implanted with transmitters, released near the set-net and monitored for 95 days using receivers installed on the set-net, Water temperatures at two depths (2.5 and 4.5m) near the net were also recorded eontinuously every 15 minutes by temperature loggers. The tagged fish disappeared from the area when the temperature increased, but appeared when the temperature declined following prevailing wind occurred, Our results suggest that the change in water temperature may affect the horizontal movement of the fish in the south basin of Lake Biwa during summer.