''Lutjanus indicus'', the striped snapper, is a species of marine

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or hor ...

, a snapper belonging to the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Lutjanidae Lutjanidae, or snappers are a family of perciform fish, mainly marine, but with some members inhabiting estuaries, feeding in fresh water. The family includes about 113 species. Some are important food fish. One of the best known is the red snapp ...

. It is native to the Indian Ocean.

Taxonomy

''Lutjanus indicus'' was first formally described in 2013 by Gerald R. Allen, William T. White and Mark V. Erdmann with the type locality given as

Trincomalee Trincomalee (; ta, திருகோணமலை, translit=Tirukōṇamalai; si, ත්‍රිකුණාමළය, translit= Trikuṇāmaḷaya), also known as Gokanna and Gokarna, is the administrative headquarters of the Trincomalee Dis ...

in Sri Lanka. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

''indicus'' refers to the Indian Ocean. Within the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

''Lutjanus'', ''L. indicus'' is closest to the Western Pacific '' L. russellii''.

Description

''Lutjanus indicus'' has a spindle shaped body with a steeply sloped forehead and a large mouth, the maxilla reaching the centreline of the large eyes. The upper jaw has two rows of teeth, the outer row of 14-16 smaller canines, plus a pair of enlarged canines being larger than the inner row of patches of tiny teeth, the lower jaw has 14-18 larger teeth in its outer row with inner rows made up of small bristle-like teeth. The

vomerine teeth The vomer (; lat, vomer, lit=ploughshare) is one of the unpaired facial bones of the skull. It is located in the midsagittal line, and articulates with the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxill ...

are arranged in a crescent-shaped patch with a rearwards extendion and there is a patch of grain-like teeth on the tongue. The incision and knob on the

preoperculum This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes. A B C ...

are weakly developed. The

dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through conv ...

has 10 spines and 13-14 soft rays while the

anal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as se ...

contains 3 spines and 8 soft rays. The

caudal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as se ...

is truncate. The maximum recorded

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...

for this species is . The overall colour is pale grey, shading to silvery white on the lower part of the body, there are seven dark brown to yellow horizontal stripes on the back of the head and flanks, there is an obvious black spot, larger than the eye, on the back underneath the first 6-7 dorsal fin rays, extending to just below the

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 ...

Distribution and habitat

''Lutjanus indicus'' is found in the Indian Ocean. It is known with certainty to occur in the

Persian Gulf The Persian Gulf ( fa, خلیج فارس, translit=xalij-e fârs, lit=Gulf of Persis, Fars, ), sometimes called the ( ar, اَلْخَلِيْجُ ٱلْعَرَبِيُّ, Al-Khalīj al-ˁArabī), is a Mediterranean sea (oceanography), me ...

and

Sea of Oman The Gulf of Oman or Sea of Oman ( ar, خليج عمان ''khalīj ʿumān''; fa, دریای عمان ''daryâ-ye omân''), also known as Gulf of Makran or Sea of Makran ( ar, خلیج مکران ''khalīj makrān''; fa, دریای مکرا� ...

, along the northern shores of the Indian Ocean to eastern India, the

Gulf of Mannar The Gulf of Mannar ( ) is a large shallow bay forming part of the Laccadive Sea in the Indian Ocean with an average depth of .

and to western Thailand. It appears to be the western sister species of ''L. russellii'' and records of that species from the

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; T ...

, Eastern Africa, Madagascar, the Seychelles and the

Mascarenes The Mascarene Islands (, ) or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of the islands belonging to the Republic of Mauritius as well as the French department of Réunion. Their ...

are likely to be of ''L. indicus'' but this needs confirmation. They have been observed in coral reef habitat at depths of between , although it has been trawled from as deep as . It is thought that like ''L. russellii'' the juveniles inhabit brackish habitats such as mangroves and estuaries, even reaching into the lower parts of freshwater streams.

Biology

''Lutjanus indicus'' is a newly described species and little is known about its biology. It has been encountered as single fish or in small groups of up to 5 individuals. It is a predatory species.

Fisheries

''Lutjanus indicus'' is frequently recorded in fish markets and is caught by commercial fisheries as both an intended quarry and as

bycatch Bycatch (or by-catch), in the fishing industry, is a fish or other marine species that is caught unintentionally while fishing for specific species or sizes of wildlife. Bycatch is either the wrong species, the wrong sex, or is undersized or juve ...

References

{{Taxonbar, from=Q21328234 Fish of Thailand Fish described in 2013 Fish of the Indian Ocean indicus