当前位置：
X-MOL 学术
›
Hydrol. Process.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Coupled influence of flow velocity and water temperature on grass carp swimming behaviour and gonad development
Hydrological Processes ( IF 2.8 ) Pub Date : 2021-01-20 , DOI: 10.1002/hyp.14052 Hongrui Liu 1 , Xin‐An Yin 1 , Xintian Qiu 1 , Jinglan Qin 1 , Wei Yang 1 , Jun Zhang 1
Hydrological Processes ( IF 2.8 ) Pub Date : 2021-01-20 , DOI: 10.1002/hyp.14052 Hongrui Liu 1 , Xin‐An Yin 1 , Xintian Qiu 1 , Jinglan Qin 1 , Wei Yang 1 , Jun Zhang 1
Affiliation
|
Reproductive migration is an essential phase in the life of many fish. During this process, swimming behaviour and gonad development are key factors related to the migration quality, and both factors are strongly influenced by water temperature and flow velocity. Many studies have explored the separate effects of these variables on fish swimming ability or gonad development, but researchers have seldom investigated the simultaneous effects of low flow velocity and water temperature on the fish swimming behaviour and gonad development. To provide that knowledge, we conducted laboratory experiments that explored the coupled effects of low water temperature and flow on warm water fish swimming behaviour and gonad development. At five temperatures (16, 18, 20, 22, and 24°C), we observed the movement of migratory warmwater grass carp (Ctenopharyngodon idellus) at seven flow velocities (0.15, 0.2, 0.25, 0.3, 0.35, 0.40, and 0.45 m/s), then explored their gonad development by comparing the level of plasma 17β‐estradiol and testosterone in fish travelling through a simulated fish way (flow stimulation) and in a fish tank (no flow stimulation). We used Bayesian networks to explore the acceptable hydrological condition for fish migration. We found that the minimum flow velocity for acceptable migration quality is a function of the water temperature, and that increasing water temperature improves fish movement success and increases the movement distance, especially at a low flow velocity. In addition, increasing water temperature (between 16 and 24°C in this experiment design) can enhance the effect of flow stimulation on gonad development. Overall, our results can broaden the understanding of reducing water temperature and flow velocity in fish swimming behaviour and gonad development, provide basic data to support hydrological process controls and the development of measures to protect fish migration.
中文翻译：
流速和水温对草鱼游泳行为和性腺发育的耦合影响
生殖迁移是许多鱼生命中必不可少的阶段。在此过程中，游泳行为和性腺发育是与迁移质量有关的关键因素，并且这两个因素都受到水温和流速的强烈影响。许多研究探索了这些变量对鱼类游泳能力或性腺发育的单独影响，但研究人员很少研究低流速和水温对鱼类游泳行为和性腺发育的同时影响。为了提供这些知识，我们进行了实验室实验，探索了低水温和低流量对温水鱼游泳行为和性腺发育的耦合影响。在五个温度（16、18、20、22和24°C）下，我们观察到了迁徙的温水草鱼（ten鱼）在七个流速下（0.15、0.2、0.25、0.3、0.35、0.40和0.45 m / s），然后通过比较通过模拟鱼道航行的鱼中血浆17β-雌二醇和睾丸激素的水平来探索其性腺发育（水流刺激）和鱼缸中（无水流刺激）。我们使用贝叶斯网络来探索鱼类迁移的可接受水文条件。我们发现，对于可接受的迁移质量而言，最小流速是水温的函数，并且提高水温可以提高鱼的运动成功度并增加运动距离，尤其是在低流速下。另外，升高水温（在此实验设计中为16至24°C之间）可以增强流动刺激对性腺发育的影响。全面的，
更新日期：2021-01-20
中文翻译：
流速和水温对草鱼游泳行为和性腺发育的耦合影响
生殖迁移是许多鱼生命中必不可少的阶段。在此过程中，游泳行为和性腺发育是与迁移质量有关的关键因素，并且这两个因素都受到水温和流速的强烈影响。许多研究探索了这些变量对鱼类游泳能力或性腺发育的单独影响，但研究人员很少研究低流速和水温对鱼类游泳行为和性腺发育的同时影响。为了提供这些知识，我们进行了实验室实验，探索了低水温和低流量对温水鱼游泳行为和性腺发育的耦合影响。在五个温度（16、18、20、22和24°C）下，我们观察到了迁徙的温水草鱼（ten鱼）在七个流速下（0.15、0.2、0.25、0.3、0.35、0.40和0.45 m / s），然后通过比较通过模拟鱼道航行的鱼中血浆17β-雌二醇和睾丸激素的水平来探索其性腺发育（水流刺激）和鱼缸中（无水流刺激）。我们使用贝叶斯网络来探索鱼类迁移的可接受水文条件。我们发现，对于可接受的迁移质量而言，最小流速是水温的函数，并且提高水温可以提高鱼的运动成功度并增加运动距离，尤其是在低流速下。另外，升高水温（在此实验设计中为16至24°C之间）可以增强流动刺激对性腺发育的影响。全面的，
京公网安备 11010802027423号