Spawning migrations of the chub in the River Spree, Germany

被引:61
作者
Fredrich, F [1 ]
Ohmann, S [1 ]
Curio, B [1 ]
Kirschbaum, F [1 ]
机构
[1] Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Biol & Ecol Fishes, D-12561 Berlin, Germany
关键词
homing; multiple spawner; spawning ground; spawning migration;
D O I
10.1046/j.1095-8649.2003.00184.x
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Out of 52 chub Leuciscus cephalus tagged with internal radio-transmitters, 46 migrated to spawning grounds in the River Spree, Germany. All chub started their first spawning migration on 21-22 May in both years of study, 1995 and 1996. They arrived at three different spawning grounds within a day and left after 1 to 6 days to return to their original sites. On 17 and 18 June 1995 and 1996 chub started their second spawning migration with the same pattern as the first. About 60% of all migrating chub moved between 1 and 13 km upstream to the nearest spawning ground. Some exceptions were observed: a few chub did not use the nearest spawning ground, some chub used different spawning grounds at first and second spawning or moved downstream to a spawning ground. Spawning grounds were characterized by 0.4 m s(-1) current velocity, shallow depth (0.1-0.8 m) and a stony bottom, where most eggs adhered. (C) 2003 The Fisheries Society of the British Isles.
引用
收藏
页码:710 / 723
页数:14
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