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白色海 (Atractoscion nobilis) 的耳孔老化:已知年龄验证,读者表现和性别特定的生长模式
Michael A Shane1, Ruairi MacNamara1, Lyall F Bellquist2
1Hubbs-SeaWorld Research Institute, San Diego, California, USA.
Journal of fish biology
|March 13, 2025
概括
这项研究验证了白海 (Atractoscion nobilis) 的年龄和生长,使用来自养殖计划的已知年龄的鱼类. 雌性比雄性生长更快,寿命更长,为管理这一重要的渔业提供了关键数据.
科学领域:
- 海洋生物学 海洋生物学
- 渔业 科学 渔业 科学
- 鱼类学 鱼类学 鱼类学
背景情况:
- 白海 (Atractoscion nobilis) 是加利福尼亚商业和休渔业的一个关键物种.
- 准确的年龄和生长数据对于有效的渔业管理至关重要,但对白鱼的了解仍然不完全.
- 以前的年龄和生长研究缺乏使用已知年龄的个体的验证.
研究的目的:
- 为了验证白海的年龄确定方法,使用已知年龄的化场养殖鱼.
- 为野生白色海种群建立性别特定的生长模型.
- 评估耳骨形态测量作为一种替代的衰老技术.
主要方法:
- 来自196个已知年龄的,化场养的白色海的切割的斜腰耳石被分析以验证读者年龄的解释.
- 来自355只野生雌性和381只野生雄性的耳石被用来开发特定于性别的·伯塔兰菲生长模型.
- 奥托利特形态学真实年龄回归是从365只化场养的鱼类中开发出来的.
主要成果:
- 读者年龄解释得到了验证,并在已知年龄的鱼中显示出高精度 (74.5%的同意率,5.1%的ACV).
- 性别特定的生长模型显示,雌性白海的生长速度比雄性更快,并且比雄性更长.
- 与读者解释相比,奥托利特基于形态测量的年龄预测显示出高度可变的一致性和精度.
结论:
- 这项研究提供了第一份经过验证的,性别特定的白海的年龄和生长数据.
- 养殖计划可以成为验证鱼群年龄和生长的宝贵工具.
- 了解性别特定的生长差异对于可持续管理白鱼渔业至关重要.
相关概念视频
Hair Cells
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
The Cochlea
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
The Auditory Ossicles
The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
Anatomy of the Ear
Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...

