Fertilization strategies for winter flounder: effects of spermatozoa density and the duration of gamete receptivity

Aquatic Biology

关键词: Marine fish;    Reproduction;    Sperm;    Egg;    Fisheries;    Aquaculture;    Segmented regression;   

DOI  :  10.3354/ab00439

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Winter flounder is one of the most commonly used models for studying fish biology in North America; however little is known about their reproductive ecology, especially during the spawning event. The objectives of this research were to determine the optimal number of spermatozoa required to fertilize eggs and to explore how long spermatozoa (30 to 240 s post-activation) and eggs (30 to 7680 s post-activation) are receptive to fertilization after exposure to seawater. We conducted experiments using gametes from wild-caught fish and measured fertilization success by examining eggs at 5 to 6 d post-fertilization. On average 34038 sperm cells per egg were required to fertilize 81.3% of the eggs. Duration after spermatozoa activation had an effect on the proportion of eggs fertilized (

【 授权许可】

CC BY