Chemical and visual control of feeding and escape behaviors in the channel catfish Ictalurus punctatus

Skin extract from Rhamdia quelen(Siluriformes: Heptapteridae) does not promote stress in conspecifics

“…Ide et al (2003) observed that Brycon cephalus exposed to skin extract of conspecifics presented a brief initial phase of dashing or very rapid swimming, followed by a long-lasting period of immobility. Other reports in the same direction were described by Valentic & Caprio (1994) working with channel catfish Ictalurus punctatus, and Giaquinto & Volpato (2001), working with pintado catfish Pseudoplatystoma corruscans. In this study an opposite pattern was demonstrated -most of the fishes remained still on the bottom in the first minutes after alarm cue exposure and presented some swimming activity in the final observation periods.…”

“…In Characiformes, which features the largest number of species assessed in this context, alarm responses to alarm cells substances have been reported, for example, in Brycon amazonicus (Honda et al, 2008); Brycon cephalus (Ide et al, 2003); Gymnocharacinus bergi (Cordi et al, 2005); Leporinus macrocephalus (Alves et al, 2013); Leporinus piau ; Mimagoniates lateralis and M. microlepis (Duboc, 2007), and Piaractus mesopotamicus (Jordão & Volpato, 2000). In the Siluriformes, the second order most studied in this context, six species have been evaluated: Arius felis (e.g., Smith 2000), Clarias gariepinus (e.g., Guerra et al, 2006;van de Nieuwegiessen et al, 2008;van de Nieuwegiessen et al, 2009), Ictalurus punctatus (e.g., Chapman & Johnson, 1997;Valentic & Caprio, 1994), Pimelodella lateristriga (e.g., Damasceno et al, 2012), Pseudoplatystoma corruscans (e.g., Giaquinto & Volpato, 2001). However, only two studies were found about the role of epithelial alarm cells on behavioral responses in jundiá, R. quelen.…”

Taste-mediated behavioral and electrophysiological responses by the predatory fish Ariopsis felis to deterrent pigments from Aplysia californica ink

“…Gustatory receptor cells in the taste buds synapse onto primary gustatory fibers, with each fiber typically receiving input from cells in multiple taste buds. The majority of research on gustation in fishes uses amino acids as test stimuli because of the role of amino acids in detection and assessment of food (Caprio 1978;Kanwal et al 1987;Michel and Caprio 1991;Valentinčič and Caprio 1994;Kohbara and Caprio 1996;Sorensen and Caprio 1998;Derby and Sorensen 2008;Yamashita et al 2006). The gustatory system of sea catfish has relatively independent receptor types for the amino acids L-arginine, L-histidine, L-proline, L-alanine, D-alanine, glycine, and L-glutamate (Michel et al 1993;Kohbara and Caprio 1996) and has two major fiber types, one most sensitive to L-alanine and glycine and another most sensitive to D-alanine (Michel and Caprio 1991).…”

Changes in the olfactory mucosa of the black bullhead Ictalurus melas induced by exposure to sublethal concentrations of sodium dodecylbenzene sulphonate

“…Behavioural tests performed on fishes after removal of their olfactory organs have shown that their avoidance reaction to pollutants depends mainly on olfactory stimuli (Hidaka & Tatsukawa 1989). Teleost species of the family Ictaluridae have frequently been used for morphological (Caprio & Raderman-Little 1978, Theisen et al 1991, Zeiske et al 1994, and biochemical, physiological and behavioural studies (Goulding et al 1992, Restrepo 1993, Valentincic & Caprio 1994, Abogadie et al 1995 on olfaction. Only 1 study has documented the morphological alterations induced by a non-ionic detergent (Triton X-100) on Ictalurus punctatus olfactory mucosa (Cancalon 1983).…”