''Nectamia annularis'', also known as the tailring cardinalfish, is a
marine fish belonging to the
family Apogonidae
Cardinalfishes are a family, Apogonidae, of ray-finned fishes found in the Atlantic, Indian, and Pacific Oceans; they are chiefly marine, but some species are found in brackish water and a few (notably ''Glossamia'') are found in fresh water. A h ...
or also called cardinalfishes.
Description
Tailring cardinalfish is a small sized
fish which grows up to 7 cm.
Its body has an elongate appearance, compressed laterally and with a round profile.
It has two translucide
dorsal fins, one
lateral line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial ...
, a large mouth and big round eyes.
[Lieske & Myers,''Coral reef fishes'',Princeton University Press, 2009, ]
Its body coloration is silver grey with a black ring around the
caudal peduncle.
Distribution & habitat
This
species is found in
tropical waters of the western part of the
Indian Ocean, including the
Red Sea, the
Gulf of Aden
The Gulf of Aden ( ar, خليج عدن, so, Gacanka Cadmeed 𐒅𐒖𐒐𐒕𐒌 𐒋𐒖𐒆𐒗𐒒) is a deepwater gulf of the Indian Ocean between Yemen to the north, the Arabian Sea to the east, Djibouti to the west, and the Guardafui Channe ...
and also the
Maldives.
[ They are found in shallow water near coral reefs up to depth.][
]
Feeding
''Nectamia annularis'' is a zooplankton-eater.[
]
Behaviour
Tailring cardinalfish is a nocturnal
Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite.
Nocturnal creatures generally have highly developed sens ...
species which when feeding, may be solitary or gather in small groups in shallow water above the coral reef. During daytime, they usually hide in reef crevices and caves.[
]
References
External links
*http://www.marinespecies.org/aphia.php?p=taxdetails&id=398503
*
annularis
Fish described in 1829
{{Kurtiformes-stub