| Pangasius krempfi | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Pangasiidae |
| Genus: | Pangasius |
| Species: | P. krempfi |
| Binomial name | |
| Pangasius krempfi Fang and Chaux, 1949 | |
Pangasius krempfi is a species of freshwater fish in the family Pangasiidae, which is commonly known as the pangas. This species is native to the Mekong river of Southeast Asia. [2] [3] [4] [5]
Pangasius krempfi was first described by Fang and Chaux in 1949. [3] It is a medium to large-sized fish characterized by its streamlined body typical of the genus Pangasius. [6]
The species has 1 dorsal spine, 6-7 dorsal soft rays, 4 anal spines, and 31-34 anal soft rays. The body depth is 4.5-5.0 times in standard length. The body of Pangasius krempfi is dark blackish-gray on the dorsal (top) and lateral (sides) surfaces, transitioning to silver-gray on the abdomen. The fins are lightly yellow in color. The dorsum (upper body) exhibits a sky-blue hue, but this species lacks the submarginal caudal-fin stripes typical of some other Pangasius species. Additionally, it does not feature a humeral spot, a characteristic found in certain other members of the genus. [7]
The teeth of Pangasius krempfi are notable for their arrangement: the vomerine teeth are separate at the midline but are joined to the palatine teeth on each side, forming long crescentic patches. The species also possesses 18-22 gill rakers on the first gill arch. [7]
Pangasius krempfi is found in the freshwater ecosystems of Southeast Asia, particularly within the Mekong river basin. The species inhabits rivers and streams, preferring environments with flowing water.
Pangasius krempfi like other species in the Pangasius genus, faces threats from habitat degradation, overfishing, and the expansion of commercial aquaculture. [8]
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Polynemus multifilis, the elegant paradise fish is a species of ray-finned fish, a threadfin from the family Polynemidae which is found in rivers in southeast Asia.
Polynemus aquilonaris, commonly known as the northern paradise fish, is a fish of the threadfin family Polynemidae. It is native to the large rivers of mainland Southeast Asia.
Datnioides undecimradiatus, the Mekong tiger perch is a species of freshwater fish belonging to the family Lobotidae, the triplefins and tiger perches. This species is endemic to the lower and middle Mekong basin in Indochina.
The giant red tail gourami is a large species of gourami belonging to the family Osphronemidae. This endangered fish is native to the Southeast Asian island of Borneo, where only known from the Kinabatangan and Segama river basins in Sabah, East Malaysia. First described in 1992 based on an aquarium specimen, its exact range was not entirely certain, leading some source to incorrectly also report it from Indonesia.
Diplodus prayensis, the two-banded seabream, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This species is endemic to the Cape Verde Islands.
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Johnius carutta, the karut croaker or purple jewfish, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is found in the western Indian Ocean.
