Advances in the Study of Feeding Behaviors, Mechanisms, and Mechanics of Sharks

摘要: Sharks as a group have long history highly successful predatory fishes. Although, the number of recent studies on their diet, feeding behavior, mechanism, and mechanics increased, many areas still require additional investigation. Dietary sharks are generally more abundant than those activity patterns, most confined to relatively few species, being carcharhiniform sharks. These reveal that asynchronous opportunistic feeders prey item, which primarily other Studies natural behavior observations based anecdotal reports. To capture either ram, suction, bite, filter, or use combination these behaviors. Foraging may be solitary aggregate, while cooperative foraging has been hypothesized it not conclusively demonstrated. anatomy mechanism thorough, far exceed functional studies. Many investigated role morphological features such protrusible upper jaw, but only recently we begun interpret apparatus how affects behavior. Teeth represented in fossil record readily available extant Therefore much is known about morphology again theoretical await experimental analysis. Recent mechanistic approaches study revealed kinematic motor patterns conserved species ability modulate varies greatly among taxa. In addition, relationship jaw suspension clear was once believed, contrary previous interpretations protrusibility appears related jaw-chondrocranial articulation rather type suspension. Finally, propose set specific hypotheses including: (1) The specialization for suction hypothesis repeatedly arisen numerous elasmobranch lineages, (2) aquatic convergence similar hydrodynamic constraints bony fishes result convergent specializations both groups, (3) modulation events stereotyped therefore less modulated compared ram bite events, (4) independence whereby traditional categorization types good predictor mobility Together with questions help guide future research biology