![]() Pomatomus shares unique aspects of tooth replacement with barracudas and other scombroids and this supports the interpretation that Pomatomus is more closely related to scombroids than to carangoids. New tooth germs originate from a discontinuous dental lamina and migrate from the lingual (dentary) or labial (premaxillary) epithelium through pores in the bone of attachment into the resorption spaces beneath the existing teeth. Click here to find out the best hook size for bluefish. Bluefish have a lower jaw that juts out prominently, and both their upper and lower jaws host a single row of uniform, sharp teeth. While this is a problem with large bluefish, small bluefish also have very sharp teeth, and using a wire lead is usually practical. Remodeling of the attachment bone occurs continuously to accommodate growth. Not only do bluefish have teeth, but their teeth are well-suited to causing damage. ![]() Teeth increase in size with every replacement cycle. Tooth number increases ontogenetically, ranging from 15-31 dentary teeth and 15-39 premaxillary teeth in the sample studied. Bluefish are truly the cannibals of the sea. The much higher percentage of functional as opposed to eroding teeth suggests that replacement rates are low but that individual teeth are quickly lost once erosion begins. Note the clean razor-like cuts delivered by the teeth of the other bluefish. school with other bluefish of similar sizes, and use their razorlike teeth to feast. Replacement is intraosseus and occurs in alternate tooth loci with long waves of replacement passing from rear to front. Biology: Bluefish are found in temperate climates all over the world. The homodont oral teeth of Pomatomus are sharp, deeply socketed and firmly ankylosed to the bone of attachment. The oral teeth are located on the dentary and premaxillary bones, and we scored each tooth locus in the dentary and premaxillary bones using a four-part functional classification: absent (A), incoming (I), functional (F=fully ankylosed) or eroding (E). We examined the oral dentition of the bluefish, Pomatomus saltatrix, a pelagic and coastal marine predator, using a sample of 50 individuals. Although most vertebrate species have polyphyodont dentitions, detailed knowledge of tooth structure and replacement is poor for most groups, particularly actinopterygians. Tooth replacement poses many questions about development, pattern formation, tooth attachment mechanisms, functional morphology and the evolution of vertebrate dentitions.
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