Movements of Cephalic Components during Feeding in Some Requiem Sharks (Carcharhiniformes: Carcharhinidae)

Fluid dynamics of feeding behaviour in white-spotted bamboo sharks

“…Modulation -in sensu consistent changes in feeding behaviour according to prey type or prey size (Frazzetta and Prange, 1987;Ferry-Graham, 1998) -is often observed in fish feeding studies, but the key point of preprogramming is that the appropriate behaviour is selected prior to the physical onset of the behaviour. Similar conditions should therefore result in a similar response.…”

“…In spite of this conservatism, most of these fishes are capable of modulating the kinematics of the feeding behaviour in response to prey type, prey size or stage (strike, process, transport, swallow) (Moss, 1972;Liem, 1978;Lauder, 1981;Frazzetta and Prange, 1987;Motta et al, 1997;Nemeth, 1997a;Nemeth, 1997b;Ferry-Graham, 1998;Wilga and Motta, 1998a;Wilga and Motta, 1998b;Friel and Wainwright, 1998;Pretlow-Edmonds, 1999;Ferry-Graham et al, 2001). In particular, suction strikes are typically shorter in duration than bite strikes, and suction transports are shorter than suction strikes (Gillis and Lauder, 1995;Wilga and Motta, 1998a;Wilga and Motta, 1998b;Motta et al, 1997;Westneat, 2006;Motta, 2004).…”

Feeding behavior of the Neotropical freshwater stingray Potamotrygon motoro (Elasmobranchii: Potamotrygonidae)

“…Investigations of the feeding mechanisms of elasmobranchs and their mechanics have been receiving growing attention -but despite rays comprise more than half of all elasmobranch species (Wilga & Motta, 1998b;Compagno, 2005), research has mostly been focused on shark species due to their voracity (Frazzetta & Prange, 1987;Wilga & Motta, 1998a;Wilga & Motta, 2000;Wilga, 2005). An extensive analysis of the ventral musculature in batoids was undertaken by Miyake et al (1992), and descriptive studies concerning the cephalic musculature and the cranialmandibular elements were carried out by González-Isáis (2003) and González-Isáis & Dominguez (2004) in Myliobatoid rays.…”

Miologia comparada dos arcos maxilar e hioide em Chondrichthyes e sua relevância nas hipóteses filogenéticas das espécies viventes

“…O palatoquadrado e a cartilagem mandibular fazem parte do chamado arco maxilar, enquanto as cartilagens hiomandibulares, as cartilagens ceratohiais, o basihial e os faringohiaisobservados em quimeras (Dean, 1906; Didier, 1996;Mickoleit, 2004) -formam o arco hioide (Moss, 1977;Compagno, 1999; Compagno, 2003 (Wilga, 2002). A projeção permite aos elasmobrânquios explorarem vantagens mecânicas durante a captura da presa como a melhoria na manipulação da presa, o aumento da precisão durante a captura de presas bentônicas através da sucção ou da investida (Moss, 1977) e o impacto simultâneo dos dentes superiores e inferiores com a presa (Frazzetta & Prange, 1987).…”

“…O palatoquadrado e a cartilagem mandibular fazem parte do chamado arco maxilar, enquanto as cartilagens hiomandibulares, as cartilagens ceratohiais, o basihial e os faringohiaisobservados em quimeras (Dean, 1906; Didier, 1996;Mickoleit, 2004) -formam o arco hioide (Moss, 1977;Compagno, 1999; Compagno, 2003 (Wilga, 2002). A projeção permite aos elasmobrânquios explorarem vantagens mecânicas durante a captura da presa como a melhoria na manipulação da presa, o aumento da precisão durante a captura de presas bentônicas através da sucção ou da investida (Moss, 1977) e o impacto simultâneo dos dentes superiores e inferiores com a presa (Frazzetta & Prange, 1987).Dados sugerem que a projeção do palatoquadrado varie tanto intraespecificamente como interespecificamente (Liem & Summers, 1999 (Gregory, 1904;Didier, 1995;Wilga, 2002). A condição orbitostílica, proposta por Maisey (1980), está reservada a alguns representantes do táxon Squalea que possuem o processo orbital articulado a parede orbital.…”