The Responses of the Catfish, Amiurus Nebulosus, to Metallic and Non-Metallic Rods

Abstract

The APS Journal Legacy Content is the corpus of 100 years of historical scientific research from the American Physiological Society research journals. This package goes back to the first issue of each of the APS journals including the American Journal of Physiology, first published in 1898. The full text scanned images of the printed pages are easily searchable. Downloads quickly in PDF format.

The functional roles of passive electroreception in non-electric fishes

“…Ampullary receptors are broadly tuned to low frequency elds (<0.1-25 Hz), while tuberous receptors are tuned to higher frequency elds from 50 Hz to over 2 kHz (New, 1997). Thought to be a primitive vertebrate character, the ability to detect weak electric elds in shes has thus far been found in agnathans (lampreys but not hag shes, Bullock et al, 1983), chondrichthyans (sharks, skates, rays and chimeras, Bullock et al, 1983;Bodznick and Boord, 1986;Fields et al, 1993;New and Tricas, 1997), cladistians (bichirs, Jørgensen, 1982), chondrosteans (sturgeons and paddle sh, Teeter et al, 1980;Northcutt, 1986) and a small number of species within the osteoglossomorph (knife shes, Braford, 1982;Bullock and Northcutt, 1982;Carr and Maler, 1986;Zakon, 1988) and three orders of teleosts; mormyrids (African electric shes, Lissmann, 1958;Bell and Szabo, 1986), gymnotids (South American electric shes, Lissmann, 1958;Carr and Maler, 1986;Zakon, 1988), and siluriform (cat sh, Parker and van Heusen, 1917;Roth, 1968;Finger, 1986;Whitehead et al, 1999Whitehead et al, , 2003 groups of shes ( g. 1). Electroreception has also been found within the sister group of the actinopterygian shes, the Sarcopterygii, which comprises the dipnoan lungshes (Northcutt, 1986;Watt et al, 1999) and the actinistian coelacanth (Bemis and Hetherington, 1982).…”

Refinement of bycatch reduction devices to exclude freshwater turtles from commercial fishing nets

“…These ictalurids possess sensitive barbels that may limit their willingness to pass through confined spaces (Ogawa et al 1997). In addition, the use of metal as a BRD in this study may have reduced the capture of bullheads as they are electrosensitive (Parker & van Heusen 1917, Peters & Bretschneider 1972. The use of a plastic device of the same dimensions may minimize this effect, but further study is needed to address this possibility.…”

Electro-communication in teleost fishes; behavior and experiments

“…The discovery of electroreception raised interest in an early observation of responses of an ictalurid catfish (which does not possess an electric organ) to weak electric fields (Parker and van Heusen 1917); the renewed interest led to the recognition that catfish possess lateral line electroreceptors of the ampullary organ type (see below; the long-known "small pit organs"; Roth 1968). The ampullae of Lorenzini of cartilaginous fishes, of which afferent nerve impulses were recorded as early as 1895 (review Murray 1974), were also regarded in light of a possible electroreceptive function after Lissmann's discovery.…”