Melanization of the alimentary tract in lizardfishes (Teleostei, Aulopiformes, Synodontidae)
Investigating the alimentary tract in several species of lizardfishes (Synodontidae, Teleostei) of the genera Saurida, Synodus and Trachinocephalus , from various sites of their distribution, revealed melanization of the tract wall. This phenomenon was observed in several species of the genus Saurid...
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Veröffentlicht in: | Environmental biology of fishes 2012-10, Vol.95 (2), p.195-200 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Investigating the alimentary tract in several species of lizardfishes (Synodontidae, Teleostei) of the genera
Saurida, Synodus
and
Trachinocephalus
, from various sites of their distribution, revealed melanization of the tract wall. This phenomenon was observed in several species of the genus
Saurida,
but not in the other two genera. This melanization is caused by layers of melanosomes rich in melanin granules and deposited within the connective tissue of the
submucosa,
between the muscular wall and the
muscularis submucosa
. From this site this black
submucosa
extends into the folds of the mucosa. In
S. tumbil
and
S. filamentosa
, the entire alimentary tract is black, whereas in S
. macrolepis
only the stomach is partially or entirely black. This phenomenon and its possible importance are discussed. |
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ISSN: | 0378-1909 1573-5133 |
DOI: | 10.1007/s10641-012-9982-8 |