作　　者： ; ; ;

机构地区： 汕头大学水生生物技术与环境资源保护研究所

出　　处： 《中国水产科学》 2003年第4期293-296,共4页

摘　　要： 从1999年11月至2002年4月,于福建及广东沿海采集方斑东风螺(Babyloniaareolata)和波部东风螺(B.formosaehabei)成年个体,活体解剖并显微观察,发现正常雌雄结构特征与以往报道一致。解剖观察显示,2种东风螺都有不同程度的性畸变,并且在性畸变的初期阶段有3种不同的发展方式。其中,波部东风螺的性畸变程度可以达到雌性不育的程度,同时其卵巢的发育也受到明显的抑制。性腺的切片观察表明,正常雌雄个体分别能形成成熟的卵细胞和精子,而性畸变严重的个体则无法生成成熟的卵细胞。本研究旨在探讨东风螺性畸变现象的特征及性畸变现象对东风螺的自然种群和人工养殖可能造成的影响。 A survey on imposex in Babylonia areolata and B. formosae habei (Buccinidae) was conducted from November 1999 to April 2002 along the southeast coastal line of China. The observation on the adult individuals showed that the normal ones shared the same anatomical and histological characters as those reported before. The imposex ones of both species, however, exhibited penis, vas deferens and prostrate, with three different pathways of imposex. Especially, the sterilization occurred in B. formosae habei due to the blockade of the opening of vagina, and the development of ovary was also suppressed obviously. All the results indicate that imposex also leads to sterilization of female Buccinidae as that happened in Muricidae. The purpose of this study is to supply basic test verification for assessment of imposex degree and characters in Babylonia spp., and to reveal the possible deleterious effects of imposex on the nature population and aquaculture of Babylonia spp.

关 键 词： 东风螺 性畸变 生殖

领　　域： [生物学]