检索结果-南通市图书馆

Use of electrosense in the feeding behavior of sturgeons

Integrative Zoology 2012年第1期7卷 74-82页

作者： Xuguang ZHANG Jiakun SONG Chunxin FAN Hongyi GUO Xiaojie WANG Horst BLECKMANN Institute for Marine Biosystem and Neuroscience Shanghai Ocean UniversityShanghaiChina College of Food Science and Technology Shanghai Ocean UniversityShanghaiChina Institute of Zoology University of BonnBonnGermany

The electro-receptive lateral line system appeared early in the evolutionary history of ***,members of the primitive Chondrostei group,are known for their electroreceptors(ampullae of Lorenzini)on the head,which are thought to be sensitive to weak electric fields in aquatic environments and involved in feeding,mating and ***,we report the results of a set of behavioral and electrophysiological experiments designed to determine the function and characteristics of the electrosense in cultured *** results showed Sibe-rian sturgeon(Acipenser baerii Brandt,1869)feeding striking at bio-electric fields produced by living feed-fish enclosed in a gel chamber and at the corrosion field produced by metal *** an electric stimulus that mim-ics the bio-electric fields produced by living prey,the relative discharge rate of electrosensory neurons in the dorsal octavolateralis nucleus(DON)was modulated by and phase-locked to sinusoidal stimulus and some units showed selectivity for dipolar direction in white sturgeon(Acipenser transmontanus Richardson,1836).This is the first study to provide the empirical evidence correlating with electrosensory behaviors and electrophysiolog-ical responses in cultured sturgeons,and suggesting that electrosense does play an innate role in feeding behav-ior of *** believe this will have important implications for protecting sturgeons in the wild.

关键词： behavior dipole electrosense hindbrain sturgeon

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Does sturgeon do use electrosense in predating?

Does sturgeon do use electrosense in predating?

引用

中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Hendrik Herzog Institute of zoology University of BonnPoppelsdorfer SchlossBonn 53115Germany

＜正＞Objective The electro-receptive lateral line system appears in the early evolutionary history of *** of the primitive Chondrostei fish group,sturgeon,is well known to have the electroreceptors（the ampullay Lourenzeni organs） on the *** were thought to be sensitive to weak electric fields in aquatic environment and being used in behaviors of prey detecting,mating,and migrating;however,there was little experimental evidence could find directly to support the *** Here we report our results of behavioral and electrophysiological experiments that are specifically designed to investigate the function and characters of the electrosensory in ***,we record the electronic characters of the bio-electrical field of their living ***,we investigate the behavioral pattern of the Siberian Sturgeon,Acipenser baerii in response to the identified bio-electrical field（produced by embedding the living prey fish in the gel chamber）.Third,we record the response properties of the electrosensory neurons in the hind brain from the dorsal octavolateralis nucleus（DON） of the White Sturgeon,Acipenser transmontanus with the simulating sinusoidal electric field according to the identified characters of the bio-electrical field produced by living prey. Results（1） The bio-electrical field of prey fish presented as direct current electric field of dipole type with negative potential on head and positive potential on tail and modulated into alternating electric field by respiration rhythm;（2） During the stimulation,DON units increased their firing rate and phase coupled the stimulation wave and showed the selectivity of dipolar *** These behavioral and electrophysiological results are first solid evidence to point out that the electrosense of Sturgeon does being used in predating（feeding） behavior.

关键词： electrosense sturgeon behavior dipole hindbrain

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Response properties of the electrosensory neurons in hindbrain of the white sturgeon,Acipenser transmontanus

引用

Neuroscience Bulletin 2011年第6期27卷 422-429页

作者：张旭光 Hendrik Herzog 宋佳坤王晓杰范纯新郭弘艺上海海洋大学海洋生物系统与神经科学研究所上海201306 波恩大学动物研究所

Objective The passive electrosense is a primitive sensory modality in the Chondrostei, which include sturgeon and paddlefish. Using electroreceptors, these fish detect the weak electric fields from other animals or geoelectric sources, and use this information for prey detection or other behaviors. The primary afferent fibers innervating the electroreceptors project to a single hindbrain target called the dorsal octavolateral nucleus （DON）, where the electrosensory information is first processed. Here, we investigated the electrophysiological properties of DON neurons. Methods Extracellular recording was used to investigate the response properties of DON neurons to dipole electric fields with different amplitudes and frequencies in the white sturgeon, Acipenser transmontanus. Results The DON neurons showed regular spontaneous activity and could be classified into two types： neurons with a low spontaneous rate （〈10 Hz） and those with a high spon- taneous rate （〉10 Hz）. In response to sinusoidal electric field stimuli, DON neurons showed sinusoidally-modulated and phase-locked firing. In addition, neurons showed opposite phase responses corresponding to the different directions of the dipole. Conclusion The response properties of DON neurons match the electrosensory biological function in sturgeon, as they match the characteristics of the electric fields of its prey.

关键词： electrosense sturgeon dipole single unit hindbrain

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：