''Chromis abyssus'' is a species of
damselfish
Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about 30 ...
first discovered in 1997 and described in 2008.
The long fish only lives more than below the surface of the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contine ...
around the coast of the
Ngemelis Islands,
Palau
Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the Ca ...
. Adults have been observed living singly or in pairs, whereas juveniles tend to live in groups.
Etymology
Its
specific name, ''abyssus'', is a
Latinised form of the Greek noun ' (meaning "abyss"), in honour of the documentary film ''
Pacific Abyss'', produced by the
British Broadcasting Corporation #REDIRECT BBC
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, which funded the expedition on which the
type specimen
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the ...
s were collected. The vernacular name "deep blue ''Chromis''", a reference to both the life colour of this species and the relatively (within the context of the genus) deep-dwelling habits, is suggested instead of the more literally translated "abyss ''Chromis''", so as not to imply that the species inhabits depths commonly defined as
abyssal
The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. "Abyss" derives from the Greek word , meaning bottomless. At depths of , this zone remains in perpetual darkness. It covers 83% of the total area of the ocean an ...
.
ZooBank
''C. abyssus'' was the first species entered into the
ZooBank
ZooBank is an open access website intended to be the official International Commission on Zoological Nomenclature (ICZN) registry of zoological nomenclature. Any nomenclatural acts (e.g. publications that create or change a taxonomic name) need t ...
registry with a timestamp of 2008-01-01T00:00:02, and it was selected as one of "The Top 10 New Species" described in 2008 by The International Institute for Species Exploration at
Arizona State University
Arizona State University (Arizona State or ASU) is a public research university in the Phoenix metropolitan area. Founded in 1885 by the 13th Arizona Territorial Legislature, ASU is one of the largest public universities by enrollment in t ...
and an international committee of
taxonomists
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given ...
.
References
External links
*
AQUATAB.NET
{{Taxonbar, from=Q1823048
abyssus
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Fish of Palau
Fish described in 2008