Monodactylus argenteus

Monodactylus argenteus
A juvenile
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Monodactylidae
Genus: Monodactylus
Species:
M. argenteus
Binomial name
Monodactylus argenteus
Synonyms
  • Chaetodon argenteus Linnaeus, 1758
  • Psettus argenteus (Linnaeus, 1758)
  • Scomber rhombeus Forsskål, 1775
  • Psettus rhombeus (Forsskål, 1775)

Monodactylus argenteus is a species of ray-finned fish in the family Monodactylidae, the moonyfishes. Its common name includes silver moonyfish, natal moony,[2] butter bream, and diamondfish.[3] It is native to the western Pacific and the Indian Ocean, including the Persian Gulf, Red Sea, and associated estuaries such as the Mekong Delta.[2]

Etymology

The specific epithet of this species, argenteus, is Latin for "silvery". This may be a reference to its silvery hue.

Description

This species reaches a maximum length of about 27 cm. It is of a bright shiny silver color with yellowish edges to the fins,[2] and the dorsal and anal fins have black tips.[3] Juveniles have more yellow coloration[2] and have two vertical black bands, one across the eye and the other just behind the operculum.[4]

A school of silver moony fish swimming above corals off the coast of Madagascar.

Habitat

This species occurs in a wide variety of habitat types, including the open ocean, brackish waters, and the freshwater habitat of rivers[2] (for instance, in Australia, it can be found in harbors and estuaries around piers[3]). Its ability to survive in a wide range of salinities makes it a model organism in the study of salinity tolerance.[4][5] Juveniles are especially tolerant to salinity changes, easily maintaining homeostasis in variable environments such as estuaries.[4]

Behavior

Although this species displays territorial behavior,[2] it can be kept in saltwater aquaria and is easy to rear in captivity.[5] It can remain solitary or form schools. It is a detritivore and planktivore.

Parasites

The myxozoan parasite Kudoa monodactyli is found on and named after this fish.[6]

References