Tracking the migratory success of stocked European eels Anguilla anguilla in the Baltic Sea.
Tracking the migratory success of stocked European eels Anguilla anguilla in the Baltic Sea.
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追踪波罗的海欧洲鳗鱼安圭拉的迁徙成功率。
DOI：
10.1111/jfb.12032
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发表时间：
2013
影响因子：
2
通讯作者：
R. Hanel
中科院分区：
文献类型：
--
作者：
E. Prigge;L. Marohn;R. Hanel
为了调查源自波罗的海支流放养方案的欧洲银鳗Anguilla anguilla对产卵种群的有效贡献程度，274只以前放养的A.安圭拉.从基尔，德国附近的Schwentine河移民，被贴上T形杆锚标签。共29个Anguilla spp。被抓（C。11%）释放后长达14个月。重新捕获A的储存历史。安圭拉.耳石微量化学证实了这一点。重新捕获的地点集中在波罗的海（丹麦带海）的出口，62%的重新捕获报告在这里或在卡特加特海峡。回收的安圭拉属显示L（T）和质量（平均值± s.d.）均减小。= -1.5 ± 0.9 cm和-125.3 ± 50.1 g），而平均总脂肪含量保持在先前报道的值的顺序，该值足够高以提供能量资源，从而允许成功完成产卵迁移（平均值± s.d. = 28.4 ± 4.4%）。但是，记录的平均移动速度（0.8公里/天）表明，定向迁移出现延迟，这可能被解释为向波罗的海出口方向迁移的初始阶段出现延迟。
To investigate the extent to which European silver eels Anguilla anguilla, originating from stocking programmes in the Baltic Sea tributaries, effectively contribute to the spawning stock, two hundred and seventy-four formerly stocked A. anguilla. emigrating from the Schwentine River near Kiel, Germany, were tagged with T-Bar anchor tags. A total of 29 Anguilla spp. were recaptured (c. 11%) up to 14 months after release. Stocking history of recaptured A. anguilla. was confirmed by otolith microchemistry. Recapture locations were concentrated around the outlet of the Baltic Sea (Danish Belt Sea) with 62% of all recaptures reported here or in the Kattegat. Recaptured Anguilla spp. showed a reduction in both L(T) and mass (mean ± s.d. = -1.5 ± 0.9 cm and -125.3 ± 50.1 g) while average total fat content remained in the order of values previously reported as high enough to provide energy resources to allow successful completion of the spawning migration (mean ± s.d. = 28.4 ± 4.4%). The documented mean rate of travel (0.8 km day(-1)), however, indicated a delay in the target-oriented migration that might be interpreted as a delayed initial migration phase of orientation towards the exit of the Baltic Sea.
欧洲鳗鲡在爱尔兰水域的栖息地利用
DOI：
--
发表时间：
2006
期刊：
Estuarine, Coastal and Shelf Science 67
影响因子：
--
作者：
Arai T;Kotake A;McCarthy TK
通讯作者：
McCarthy TK