{"refrec":{"BRefID":2017,"RR":"<b>Peters, R.C.; Loos, W.J.G.; Bretschneider, F.; Heijmen, P.S.</b> (1995). Psychophysical assessment of catfish electro-sensitivity <i>versus</i> temperature and electric field frequency. <i>Neth. J. Zool. 45(1-3)</i>: 347-361","BEntID":2017,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Neth. J. Zool. 45(1-3)</i>: 347-361","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Peters, R.C.; Loos, W.J.G.; Bretschneider, F.; Heijmen, P.S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Peters, R.C. <i>et al.</i>","Englishabstract":"The detection thresholdof the electrosensory system in catfish, <i>Ictalurus nebulosus</i>, was assessed psychophysically with the 'staircase method' in two-alternative forced-choice experiment over a period of 6 months.Detection tresholds were assessed at stimulus frequencies of 0.03, 0.1, 1, 3, 10, 30, and 100 Hz at temperatures of 5, 10, 15, 20, and 25 °C. The water conductivity was kept between 0.23 and 0.27 mS/cm. The behavioural response curve hass a band pass filter shape with maximum transfer at frequencies in the range from 1 to 3 Hz. The lowest value of the treshold was 0.8 µV/cm at 1 Hz, 25°C, and 0.26 mS/cm. At lower frequencies, e.g. 0.03 Hz, the mean trashold ranged from 500 to 1000 µV/cm. The overall preformance of the fish improved during the course of the experiment as was demonstrated by the mean treshold at 1 Hz from 35 to 10 µV/cm. Treshold-temperature curves were incongruous with electro-physiologicallymade sensitivity recordings of electroreceptor organ primary afferents. At frequencies above 3 Hz temperature effects were most noticeable, mainly as an increased sensitivity. Temperature effects at frequencies less than 3 Hz were negligible.                                          The results serve as reference values for future studies on water pollution where the electric sense serves as a biomonitor system. We conclude that such stdies should be conducted at stimulus frequencies between 0.1 and 3 Hz.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Psychophysical assessment of catfish electro-sensitivity <i>versus</i> temperature and electric field frequency","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1995,"MonPub":null,"DateUpdate":"2001-11-14","DateCreate":"2000-08-24","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":2017,"PubliDate":1995,"Pagination":"347-361","XtraPublOfAnaID":null,"ISBN":null,"Volume":"45","Issue":"1-3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43566,"SerRR":"Netherlands Journal of Zoology. E.J. 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