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盐度有什么区别-赛马海 (Pusa saimensis) 和波罗的海环状海 (Pusa hispida botnica) 的脏解剖学

Heini Nihtilä¹, Juha Laakkonen¹

¹Division of Veterinary Anatomy and Developmental Biology, Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland.

Anatomical record (Hoboken, N.J. : 2007)

|November 29, 2025

概括

赛马环状海的脏结构 (reniculi) 比波罗的海环状海少,这表明海适应了淡水. 这两种物种都比北极环状海显示出更少的.

科学领域:

比较解剖学的比较解剖学.
动物学动物学
海洋生物学海洋生物学

背景情况:

息地盐度在淡水赛马环状海 (Pusa saimensis) 和水波罗的海环状海 (Pusa hispida botnica) 之间显著不同.
以前关于环状海形态的研究主要集中在北极种群 (Pusa hispida hispida).

研究的目的:

调查赛马环状海和波罗的海环状海对不同息地盐度的反应中的脏的潜在形态适应.
为了比较这两种亚种之间的脏解剖学,特别是脏数和脏血管,以及之前报告的北极环状海数据.

主要方法:

通过剖析和造品检查脏解剖学.
标准组织学技术被用来分析脏组织.
记录了脏细胞数量和动脉分支模式.

主要成果:

与波罗的海环状海相比,赛马环状海表现出统计学上显著的较少的膜数量.
在两种研究的亚种中,脏细胞的平均数量明显低于北极环状海报告的数量.
确定了四种常见的动脉分支模式.
组织学检查显示,赛马海和波罗的海海两种环状海都有弧形和间叶静脉的存在,这与之前的一些发现相反.

结论:

赛马海和波罗的海环状海的数减少表明它们的形态适应于各自的水生环境.
这些亚种的形态与北极环状海不同,突出显示了亚种特有的适应性.
观察到的静脉结构有助于更全面地了解环状海血管系统.

关键词:

腐蚀造机具有腐蚀性的作用.淡水海是一种新鲜的海.松脚类动物松脚类动物脏循环脏循环

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