相关实验视频

Updated: Jul 1, 2026

Necropsy-based Wild Fish Health Assessment

Necropsy-based Wild Fish Health Assessment

Published on: September 11, 2018

保存对黄形状和大小的时间影响:对形态分析的含义

Tyler J Hoyt¹, Carl R Ruetz¹

¹Annis Water Resources Institute Grand Valley State University Muskegon Michigan USA.

Ecology and evolution

|September 29, 2025

概括

在乙醇中保存黄会随着时间的推移引起小的形状和尺寸变化,主要是由于背部曲. 研究人员建议只比较新鲜或同样保存的标本进行准确的鱼类研究.

科学领域:

鱼类学鱼类学鱼类学
鱼类学和标本的保存.

背景情况:

长期保存鱼类通常使用甲固定,然后保存乙醇.
这种方法可以诱导标本形状和大小的物种和特定阶段的变化.

研究的目的:

评估甲固定和乙醇保存对成年黄 (Perca flavescens) 的形状和体型的时间效应.

主要方法:

从密歇根湖的支流收集了42只黄.
测量新鲜的鱼 (长度,质量,形状通过摄影) 和再次在 21,47 和 61 天后在乙醇中.
使用几何形态测量分析了形状变化.

主要成果:

观察到显著的形状变化,尤其是背部曲,特别是在新鲜和21天保存的标本之间.
随着时间的推移,总长度 (<1%) 和质量的轻微变化被检测出来.
中心肌大小在47至61天之间显示了适度 (~5%) 的矛盾变化.

结论:

虽然大多数保存的黄的形状和尺寸变化都很小,但时间差异很大.
建议仅将新鲜标本与新鲜标本进行比较,并将保存的标本与类似保存的标本进行比较,以进行形状和尺寸分析.

关键词:

鱼类的保存鱼类的保存几何形态形态测量是几何形态的.形态学形态学形态学黄色的座座座是一种黄色的座.

更多相关视频

Raising the Mexican Tetra Astyanax mexicanus for Analysis of Post-larval Phenotypes and Whole-mount Immunohistochemistry

Raising the Mexican Tetra Astyanax mexicanus for Analysis of Post-larval Phenotypes and Whole-mount Immunohistochemistry

Published on: December 28, 2018

Spatially Compact Arrangement of Larval Zebrafish Sections for Spatial Transcriptomic Analysis

Spatially Compact Arrangement of Larval Zebrafish Sections for Spatial Transcriptomic Analysis

Published on: May 16, 2025

相关概念视频

Derivatives: Problem Solving

Derivatives: Problem Solving

Temperature-Dependent Growth of Brook TroutThe growth of brook trout is closely influenced by water temperature. Experimental data demonstrate how trout weight changes over a 24-day period in response to varying water temperatures. At lower temperatures, such as 15.5 degrees Celsius, brook trout show significant weight gain. However, as the temperature increases, the amount of weight gained steadily decreases. At the highest temperature measured, 24.4 degrees Celsius, trout experience a net...