相关实验视频

Updated: May 10, 2025

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Published on: October 29, 2021

挑战中的大西洋鱼 (Salmo salar):运动和压力期间的心率和加速动态

Wisdom E K Agbeti^1,2, Arjan P Palstra¹, Suzy Black²

¹Animal Breeding and Genomics, Wageningen University and Research, Wageningen, Netherlands.

Frontiers in physiology

|April 22, 2025

概括

大西洋鱼的心率 (HR) 在强度游泳期间保持稳定,这表明中风体积有助于氧气输送. 加速 (AC) 与氧气消耗相关,表明其作为能源支出预测器的潜力.

科学领域:

身体生理学身体生理学
动物行为动物行为
水产养殖是水产养殖的一种方式.

背景情况:

了解大西洋鱼对运动的生理反应对于水产养殖和保护至关重要.
以前的研究集中在鱼类的氧气消耗 (MO2) 和心率 (HR),但加速 (AC) 的作用不太清楚.

研究的目的:

为了研究心率 (HR) 和加速 (AC) 的动态在大西洋鱼在游泳健身测试期间.
确定HR,AC,氧气消耗 (MO2) 和运动行为之间的关系.
评估诱导的压力对HR和AC的影响.

主要方法:

大西洋鱼被手术植入数据记录器来测量HR和AC.
鱼在游泳道中从0.2到1.0米/秒进行了增量游泳测试,并监测了MO2和行为.
随后进行了压力挑战测试,以评估应激反应.

主要成果:

尽管游泳速度和MO2增加,HR仍然稳定 (82-84bpm),这表明中风体积在心脏输出中的作用.
AC随着游泳速度的增加而增加,并与MO2显示出强烈的正相关性 (∼40%),这表明它是能源支出指标.
尾部跳动频率 (TBF) 和头部宽度频率 (HWF) 与MO2相关,而HR没有有效地预测游泳期间的MO2.

结论:

在游泳大西洋鱼中增加的氧气需求不仅仅是通过增加HR来满足,这支持了冲击体积的重要性.
AC是大西洋鱼在游泳期间能耗的潜在可靠预测指标.
观察到HR对压力的反应,但仍低于90bpm,类似于游泳反应.

关键词:

水产养殖的水产养殖鱼的行为鱼的行为消耗氧气消耗氧气的时间.植入的传感器植入了传感器植入物.游泳生理学游泳生理学

更多相关视频

Implantation of a New Micro Acoustic Tag in Juvenile Pacific Lamprey and American Eel

Implantation of a New Micro Acoustic Tag in Juvenile Pacific Lamprey and American Eel

Published on: March 16, 2019

Effectiveness of the Air Stripping in Two Salmonid Fish, Rainbow Trout Oncorhynchus Mykiss and Brown Trout Salmo Trutta Morpha fario

Effectiveness of the Air Stripping in Two Salmonid Fish, Rainbow Trout Oncorhynchus Mykiss and Brown Trout Salmo Trutta Morpha fario

Published on: September 16, 2018

相关概念视频

Osmoregulation in Fishes

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?

Fixed Action Patterns

Fixed Action Patterns

A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.