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Updated: May 9, 2025

Behavioral Approaches to Studying Innate Stress in Zebrafish
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Behavioral Approaches to Studying Innate Stress in Zebrafish

Published on: May 1, 2019

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尼罗河鱼 (Oreochromis niloticus) 暴露于烟花噪音的生理应激反应

Halit Kusku1, Murat Yigit1

  • 1Canakkale Onsekiz Mart University, Faculty of Marine Science and Technology, Department of Fisheries Industry Engineering, 17100 Canakkale, Türkiye.

Anais da Academia Brasileira de Ciencias
|April 29, 2025
PubMed
概括

烟花噪音会对尼罗河鱼造成生理压力,鱼类对重复暴露没有习惯. 这些发现突显了人为噪音对水生动物福利和压力恢复的影响.

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Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
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Testing a Claim about Mean: Known Population SD01:11

Testing a Claim about Mean: Known Population SD

A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
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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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Physiological Foundation of Stress

Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
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