Morphology Commons^™

Functional Morphology Of The Sphyrnid Shark Cephalofoil: An Assessment Of The Hydrodynamic Lift Hypothesis Using Computational Fluid Dynamics, Matthew K. Gaylord

Electronic Theses and Dissertations

The hammerhead sharks (Family: Sphyrnidae) are all characterized by a conspicuous lateral expansion and dorsoventral flattening of the head forming a structure known as a cephalofoil, however, there is substantial morphological variation within the clade. Many theories have been proposed regarding the functional aspects of this structure. One of these is that it may produce beneficial dynamic lift as the shark swims (in similar fashion to the cambered wings found on many modern-day aircraft). As sharks do not possess a swim bladder, part of their energy intake is expended on simply maintaining vertical station in the water column. If indeed …