Lates

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Lates
Temporal range: 33.9–0 Ma[1] Early Oligocene to present[2]
File:Latidae Lates calcarifer 3.jpg
Barramundi (L. calcarifer) displaying eyeshine
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Carangiformes
Suborder: Centropomoidei
Family: Latidae
Genus: Lates
G. Cuvier, 1828
Type species
Lates niloticus
Linnaeus, 1758[3]
Synonyms[4]
  • Luciolates Boulenger, 1914
  • Pseudolates Alleyne & W. J. Macleay, 1877

Lates is a genus of freshwater and euryhaline lates perches belonging to the family Latidae. The generic name is also used as a common name, lates, for many of the species.[5]

All species are predatory, and the Nile perch (L. niloticus), in particular, has become infamous as an invasive species introduced into the East African Lake Victoria, where many native Haplochromines were driven extinct. In contrast to the widespread Barramundi and Nile perch (though the fish does face threats from human activity), several members of the genus Lates with relatively restricted African or Asian distributions are themselves considered threatened.

Etymology

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The generic name Lates derives from the Latin latēre (to be hidden).

Description

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These fishes range in size from less than 30 to 200 cm (1 to 7 ft) in maximum overall length, the largest species reaching weights up to 200 kg (440 lb).[5] They all have the characteristic centropomid shape, with the two-part dorsal fin and general percoid form.

All species are carnivorous, preying on aquatic invertebrates and other fish in a wide variety of habitats.

Distribution and habitat

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File:Lates angustifrons (juvénile).jpg
The greatest species diversity is in the Rift Valley lakes, with four endemic to Tanganyika (L. angustifrons shown), one to Albert and one to Turkana

These fishes are native to freshwater and marine waters of Africa, Asia, the Indian Ocean, and the western Pacific Ocean. Several species are endemic to the Rift Valley lakes in Africa.

Taxonomy

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Extant species

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Currently, 11 recognized species are placed in this genus:[5]

Extinct species

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Extinct species within this genus include:[1][6][7]

Extinct species within this genus lived from the early Oligocene epoch to the present.[7] Fossils have been found in Africa (Libya, Egypt, Kenya, Tunisia, Chad, Uganda, the Democratic Republic of the Congo, Niger, and Sudan), Saudi Arabia, and Slovakia.[1] Earlier specimens from the Eocene are now placed in their own genus, Eolates.[9]

Prehistoric Lates appear to have had significant species diversity in the marine basins of the Mediterranean and Paratethys, but appear to have been significantly affected by salinity fluctuations, leading to their eventual extinction. In the present day, the only surviving Lates in this region are L. niloticus in estuarine habitats in North Africa.[7][8]

References

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  1. ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ Murray, A.M., Attia, Y.S. A new species of Lates (Teleostei: Perciformes) from the Lower Oligocene of Egypt, Journal of Vertebrate Paleontology, 2004, 24(2):299–308
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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  7. ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  8. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  9. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

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