嘉庚蛸生殖系统结构观察  

Anatomy and histology observation on the reproductive system of Octopus tankahkeei

作　　者：许著廷[1] 李来国 王春琳[1] 母昌考[1] 

机构地区：[1]宁波大学应用海洋生物技术教育部重点实验室,浙江宁波315211 [2]舟山市水产研究所,浙江舟山316000

出　　处：《水产学报》2011年第7期1058-1064,共7页Journal of Fisheries of China

基　　金：国家"十一五"科技支撑计划项目(2007BAD43B05);王宽诚幸福基金

摘　　要：采用解剖和组织切片技术对嘉庚蛸生殖系统结构进行了系统研究。雄性生殖系统除已报道的精巢、输精管、精囊、摄护腺、精荚囊和阴茎等部分之外,新发现了盲囊结构。精巢属于小叶型精巢,由精巢壁和实质部分组成。精囊分为前、中、后3段,前段与输精管相连,后段与摄护腺相连。精囊壁组成复杂,有两个舌状突起伸入囊腔中,两个舌状突起结构从精囊中段渐行至精囊后段,一个逐渐膨大,另外一个逐渐缩小,精囊壁及舌状突起上密布腺体细胞,分泌作用旺盛。精荚及胶质尾巴均在摄护腺中形成,在精荚囊中浓缩、储存。雌性生殖系统包括卵巢、输卵管和输卵管腺等部分。输卵管较长,开口于漏斗口处。输卵管腺着生在输卵管上,结构复杂,内部有纳精囊结构。Carrying out artificial breeding of Octopus tankahkeei is imperative,because of decline of fishery resources and the increasing of market demand.So far,the structure and function of the reproductive system of O.tankahkeei is lack systematic and in-depth understanding.In this study,the reproductive system of O.tankahkeei was observed using anatomical and histological methods,in order to enrich the content of its reproductive biology and provide a theoretical basis for breeding protection.The male reproductive system is composed of spermary,spermaduct,vesicular seminalis,prostate gland,blind sac,spermatophore sac and penis.The lobular type of spermary consists of spermary wall and parenchyma.The vesicular seminalis is classified into three parts artificially：the forepart of vesicular seminalis,the middle of vesicular seminalis and the rear of vesicular seminalis.The forepart of vesicular seminalis is connected with the spermaduct,and the rear of vesicular seminalis is connected with the prostate gland.The spermaduct doesn＇t import vesicular seminalis directly,but moves side by side,and then the lumens merge gradually.The wall of the vesicular seminalis is very complex,with two lingulate processes fingering out into the cavity.From the middle of vesicular seminalis to the rear of vesicular seminalis,a lingulate process is getting bigger and bigger while the other one becomes smaller and smaller.A lot of glandular cells are located in the wall of vesicular seminalis and tonguelet.Spermatophore and colloid tail are both formed in the prostate gland,concentrated in the spermatophore sac,and are stored there.The female reproductive system is composed of ovary,oviduct and oviducal gland.Oviduct is long,opening at the funnel mouth.The structure of oviducal gland located on the oviduct is complicated,with a thelycum in it.The discovery of thelycum reveals the mechanism of fertilization which provides practical evidence for artificial breeding of O.tankahkeei.

关 键 词：嘉庚蛸 生殖系统 解剖学 组织学 

分 类 号：S917.4[农业科学—水产科学]