检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]上海水产大学渔业学院,200090 [2]中国水产科学研究院北戴河中心实验站,066100
出 处:《海洋湖沼通报》1997年第3期46-51,共6页Transactions of Oceanology and Limnology
摘 要:本文对硬骨类中的5个目、8科、8属、8种鱼类的消化系统作了比较解剖研究。8种鱼类均为肉食性,但由于所摄取的动物种类不同,因此8种鱼类在消化系统各部分形态结构上各具特点。消化系统各部特点是与食性及食物种类相适的。This paper deals with the comparative anatomy of the digestive system of eight species of marine fishes belonging to five orders, eight families and eight genera.The eight species mainly feed on fishes, crustaceanes, mulluscses and so on.Their mouths are all smaller, with small or degenerated teeth, their stomaches show three varieties of pattern (i, e., l, U, and Y pattern). The eight species of fishes are all carnivores. Their stomaches and intestines obviously become divided.The small intestines of the eight species are all shorter. All the fishes, except Fugu Xanthopterus, possess pyloric caeca (ranging from 4 to over 600).
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3