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相关概念视频

Osmoregulation in Fishes02:32

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?

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相关实验视频

Updated: Jul 7, 2026

Studying Diabetes Through the Eyes of a Fish: Microdissection, Visualization, and Analysis of the Adult tg(fli:EGFP) Zebrafish Retinal Vasculature
10:07

Studying Diabetes Through the Eyes of a Fish: Microdissection, Visualization, and Analysis of the Adult tg(fli:EGFP) Zebrafish Retinal Vasculature

Published on: December 26, 2017

瓶鼻海豚:双裂的瞳孔产生相当的空中和水下白天敏度.

L M Herman, M F Peacock, M P Yunker

    Science (New York, N.Y.)
    |August 22, 1975
    PubMed
    概括
    此摘要是机器生成的。

    玻璃鼻海豚在最佳距离的空气和水中看得同样好. 它们在空中的视力会随着距离的增长而改善,而在水下视力则会随着特殊镜头的帮助而改善.

    更多相关视频

    Behavioral Tracking and Neuromast Imaging of Mexican Cavefish
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    Behavioral Tracking and Neuromast Imaging of Mexican Cavefish

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    Visualization of the Superior Ocular Sulcus during Danio rerio Embryogenesis
    08:03

    Visualization of the Superior Ocular Sulcus during Danio rerio Embryogenesis

    Published on: March 27, 2019

    相关实验视频

    Last Updated: Jul 7, 2026

    Studying Diabetes Through the Eyes of a Fish: Microdissection, Visualization, and Analysis of the Adult tg(fli:EGFP) Zebrafish Retinal Vasculature
    10:07

    Studying Diabetes Through the Eyes of a Fish: Microdissection, Visualization, and Analysis of the Adult tg(fli:EGFP) Zebrafish Retinal Vasculature

    Published on: December 26, 2017

    Behavioral Tracking and Neuromast Imaging of Mexican Cavefish
    14:58

    Behavioral Tracking and Neuromast Imaging of Mexican Cavefish

    Published on: April 6, 2019

    Visualization of the Superior Ocular Sulcus during Danio rerio Embryogenesis
    08:03

    Visualization of the Superior Ocular Sulcus during Danio rerio Embryogenesis

    Published on: March 27, 2019

    科学领域:

    • 海洋生物学 海洋生物学
    • 动物视觉科学 动物视觉科学
    • 感官生态学 感官生态学

    背景情况:

    • 了解海豚视觉能力对于海洋哺乳动物研究至关重要.
    • 之前的研究表明,鱼在空气中可能存在视觉限制.
    • 不同媒体中的海豚视觉敏度仍然是积极研究的领域.

    研究的目的:

    • 为了比较瓶鼻海豚在空气和水中的视觉分辨率.
    • 在两种环境中调查视距离对海豚视力敏度的影响.
    • 评估一种新型光学装置在纠正空中近视方面的有效性.

    主要方法:

    • 在空中和水中环境中进行了视觉格子敏度测试.
    • 操纵标准观看距离以评估分辨率变化.
    • 采用双裂纹瞳孔装置来评估其对空中视力的影响.

    主要成果:

    • 玻璃鼻海豚在最佳距离的空气和水中显示出可比的视觉分辨率.
    • 空中视觉敏度随着视距离的增加而增加.
    • 水下视觉敏度随着视距离的减少而有所改善.
    • 双裂纹瞳孔装置成功地弥补了海豚的空中近视.

    结论:

    • 玻璃鼻海豚拥有强大的视觉系统,能够在空气和水中有效地运行.
    • 环境因素,特别是中等和观测距离,显著调节海豚的视觉表现.
    • 在特定的条件下,光学辅助器可以潜在地增强或纠正海洋哺乳动物的视觉缺陷.