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The role of olfaction throughout juvenile development: Functional adaptations in elasmobranchs by Vera Schluessel; Michael B. Bennett; Horst Bleckmann; Shaun P. Collin is a Environmental Science article available to read on EtoBox.

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## Abstract Seven elasmobranch species, a group known for their highly‐developed sense of smell, were examined for developmental changes in the number of olfactory lamellae, the size of the surface area of the sensory olfactory epithelium and the mass of both the olfactory rosettes (primary input to the CNS), and the olfactory bulbs. Within each species, juveniles possessed miniature versions of the adult olfactory organs, visually not distinguishable from these and without any obvious structural differences (e.g., with respect to the number of lamellae and the extent of secondary folding) between differently sized individuals. The size of the olfactory organs was positively correlated with body length and body mass, although few species showed proportional size scaling. In __Aetobatus narinari__ and __Aptychotrema rostrata__, olfactory structures increased in proportion to body size. With respect to the growth of the olfactory bulb, all species showed allometric but not proportional growth. Olfaction may be of particular importance to juveniles in general, which are often subjected to heavy predation rates and fierce inter/intraspecific competition. Accordingly, it would be advant

Who reads The role of olfaction throughout juvenile development: Functional adaptations in elasmobranchs?

Author

Vera Schluessel; Michael B. Bennett; Horst Bleckmann; Shaun P. Collin

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0362-2525)

Published

2009

Language

EN

Field

Environmental Science (Physical Sciences)