相关实验视频

Updated: Jul 4, 2025

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

同时发生的入侵性和引入的鱼鱼类物种的跨和内部特异现象型变化

Can Mert Gören¹, Nehir Kaymak¹

¹Akdeniz University, Faculty of Science, Department of Bioogy, Antalya, Turkey.

Saudi journal of biological sciences

|February 8, 2024

概括

像普鲁士鱼和普通鱼这样的引入鱼类在新环境中显示出显著的身体形状和尺寸变化. 这些由位置和物种影响的变化表明,适应性和表型可塑性有助于入侵成功.

科学领域:

生态生态学生态生态学
进化生物学进化生物学
鱼类学鱼类学鱼类学

背景情况:

非本地物种面临着新的环境条件,可能导致适应性表型特征.
现型可塑性是非本地物种适应,健康和入侵成功的关键驱动因素.

研究的目的:

调查入侵的普鲁士鱼 (Carassius gibelio) 和引入的普通鱼 (Cyprinus carpio) 的体型和体型的特异性变异.
为了确定表型变异是否与土耳其杜登河流中的物种特异性特征和河流位置相关.
探索这两种鱼类物种之间表型变异模式的潜在相似之处.

主要方法:

身体尺寸和形状变化的比较分析.
多变量协变分析 (MANCOVA) 评估物种和河流位置的影响.
检查与环境因素和潜在的生态作用相关的表型特征.

主要成果:

观察到物种特异性特征和河流位置对身体形状和尺寸变化的显著影响.
头部形状,身体形态和的差异表明了游泳和养行为的适应.
内部变异表明潜在的快速局部适应或表型可塑性,以应对环境压力.

结论:

环境因素和物种身份在很大程度上影响了引入鱼群的表型变异.
观察到的表型差异可能反映了适应利基划分的情况,从而减少了种类间的竞争.
种内变异突出了这些物种通过局部适应或表型可塑性的适应能力.

关键词:

卡拉西乌斯·吉贝利奥 (Carassius gibelio) 是一个古老的科学家.鱼类 (Cyprinidae) 是一个鱼类.鱼 (Cyprinus carpio) 是一个有趣的植物.几何形态仪表的几何形态仪表.跨和内特定变化的变化.现象类型差异的差异

更多相关视频

Gamete Collection and In Vitro Fertilization of Astyanax mexicanus

Gamete Collection and In Vitro Fertilization of Astyanax mexicanus

Published on: May 25, 2019

Protocol for Acute and Chronic Ecotoxicity Testing of the Turquoise Killifish Nothobranchius furzeri

Protocol for Acute and Chronic Ecotoxicity Testing of the Turquoise Killifish Nothobranchius furzeri

Published on: April 24, 2018

相关概念视频

Speciation Rates

Speciation Rates

Hybrid Zones

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.

Formation of Species

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.

What is a Species?

What is a Species?

Background and Environment Affect Phenotype

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.