波戈尼亚斯·库尔比纳 (Pogonias courbina) 在第一个繁殖季节的精子特征
Jhony Lisboa Benato1, Danilo Streit1,2, Nathalia Dos Santos Teixeira2
1Animal Science Research Program, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.
PeerJ
|July 24, 2023
概括
南方黑鼓精子分析揭示了生殖潜力,尽管不成熟指标. 这项研究有助于保护这种脆弱物种,并支持水产养殖的发展.
科学领域:
- 鱼类学 鱼类学 鱼类学
- 生殖生物学 生殖生物学
- 水产养殖是水产养殖的一种方式.
背景情况:
- 南方黑鼓 (Pogonias courbina) 是西大西洋的一种脆弱物种,捕鱼被禁止.
- 这种物种是最大的Sciaenidae在巴西里约格兰德杜苏尔州发现.
- 了解其生殖能力对于保护和水产养殖至关重要.
研究的目的:
- 为了确定Pogonias courbina的精子特征.
- 为了评估年轻男性的精子动态和形态.
- 确定影响生殖能力的因素.
主要方法:
- 从五只两岁的雄鱼通过腹部压力收集精子样本.
- 分析了精子运动率 (MOT),速度 (VCL,VAP,VSL),直度 (STR),摇摆 (WOB),节拍交叉频率 (BCF) 和进展 (PRG).
- 评估了精子形态学,形态学和参数之间的相关性.
主要成果:
- 精子运动率为10.7%,正常的精子是35.6%.
- 常见的异常包括尾部缺陷 (22.7%) 和细胞质液滴 (27.5%).
- BCF和正常精子之间的正相关性 (r=0.9269);观察到BCF,WOB和PROG与特定异常的负相关性.
结论:
- 南方黑鼓拥有精子特征,表明生殖能力.
- 异常的精子激活和高细胞质液滴的存在表明在第一个生殖季节的不成熟.
- 这些发现有助于理解P. courbina在物种恢复和水产养殖中的繁殖参数.
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