Porthole shovelnose catfish

Last updated

Porthole shovelnose catfish
Johann Natterer - Jurupoca (Hemisorubim platyrhynchos).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Pimelodidae
Genus: Hemisorubim
Bleeker, 1862
Species:
H. platyrhynchos
Binomial name
Hemisorubim platyrhynchos
(Valenciennes, 1840)
Synonyms

Platystoma platyrhynchos
Valenciennes, 1840

The porthole shovelnose catfish or spotted shovelnose catfish, Hemisorubim platyrhynchos, is the only species in the genus Hemisorubim of the catfish (order Siluriformes) family Pimelodidae. [1]

Contents

Taxonomy

This fish is considered one of the "sorubimine" catfishes, an informal group of catfish that includes genera such as Sorubim , Pseudoplatystoma , and Brachyplatystoma . [2] This genus forms a monophyletic group with Sorubim , Sorubimichthys , Pseudoplatystoma , and Zungaro . Of these genera, Hemisorubim is most closely related to Pseudoplatystoma. [3]

Distribution

This species is native to South America and originates from the Amazon, Maroni, Orinoco, and Paraná River basins. [4] It also occurs in the Pantanal. [5]

Appearance and anatomy

This fish reaches a length of 52.5 centimetres (20.7 in) SL and weighs up to 1,470 grams (3.23 lb). [4] It is the sixth largest Pimelodid in the Pantanal. [5] Its body shape and color pattern are perfectly adapted to the muddy bottom where they inhabit. [4] These fish have a relatively slow growth rate, except during the first year of life when growth is rapid. [5]

Ecology

This species is rather rare, confined to the deeper and slow-moving parts of large rivers together with some Loricaria and Potamotrygon . [4] The position of the eyes and the shape of the mouth of this piscivorous fish indicate its stalking mode of hunting; these fish feed on benthic organisms and other fish. [4] During the receding period, these fish migrate and leave the flooded areas and return to the river channel. [5]

Relationship to humans

An 1865 watercolor painting of a Brazilian spotted shovelnose catfish by Jacques Burkhardt. Hemisorubim platyrhynchos (Tocantins, Brazil, 21 September 1865).jpg
An 1865 watercolor painting of a Brazilian spotted shovelnose catfish by Jacques Burkhardt.

The meat of this species is highly valued. This animal is found in the fish market of Cuiabá River in March, April, September, and October. In the southern Pantanal, landing data, including professional and recreational fishing results for 1999, recorded 7.8 metric tons. The accumulated amount of fish landed from 1994 to 1999 was 50 metric tons. [5]

Related Research Articles

<i>Pseudoplatystoma</i> Genus of fishes

Pseudoplatystoma is a genus of several South American catfish species of family Pimelodidae. The species are known by a number of different common names. They typically inhabit major rivers where they prefer the main channels and tend to stay at maximum depth, but some species can also be seen in lakes, flooded forests, and other freshwater habitats. They have robust bodies, and are important food fish. Recently, their population size has been on the drastic decline due to a variety of factors including overfishing and habitat destruction due to the construction of hydroelectric dams.

<span class="mw-page-title-main">Pimelodidae</span> Family of fishes

The Pimelodidae, commonly known as the long-whiskered catfishes, are a family of catfishes.

<span class="mw-page-title-main">Redtail catfish</span> Species of fish

The redtail catfish, Phractocephalus hemioliopterus, is a pimelodid (long-whiskered) catfish. In Venezuela, it is known as cajaro, in Guyana, it is known as a banana catfish, and in Brazil, it is known as pirarara, stemming from the Tupi language words pirá and arara. It is the only extant species of the genus Phractocephalus. This fish is common in the aquarium trade, although its massive adult size makes it unsuitable for all but the largest aquariums. They feed on fish, crustaceans and fallen fruits. They are not evaluated by IUCN.

<i>Sorubim</i> Genus of fishes

Sorubim is a small genus of long-whiskered catfish native to tropical South America. A number of characteristics allows the differentiation of each species in the genus. Sorubim species are important food fish in South America and are highly significant to fisheries of some areas; however, harvests of these fish are not identified as much as other, more popular food fishes such as Colossoma, Arapaima, and Brachyplatystoma. Some species of this family are popular aquarium fish.

<i>Brachyplatystoma</i> Genus of fishes

Brachyplatystoma is a genus of catfish from the family Pimelodidae. As the occasionally used common name goliath catfishes indicates, this genus includes some of the largest species of catfish, including the piraíba, B. filamentosum, which reaches up to the region of 3.6 metres (12 ft) in length. Brachyplatystoma are found in the Amazon and Orinoco basins, and other tropical freshwater and brackish habitats in South America. Some species are migratory. These fish are important as food fish and, to some extent, aquarium fish.

Exallodontus aguanai is a catfish species of the monotypic genus Exallodontus of the family Pimelodidae. This genus and species was described in 1991. This species reaches 20 centimetres (7.9 in) SL. This species is native to the Amazon and Orinoco River basins of Brazil, Colombia, Peru and Venezuela. Exallodontus is classified under the "Calophysus-Pimelodus clade". Within this clade, it is considered a part of the "Pimelodus-group" of Pimelodids, which also includes Pimelodus, Duopalatinus, Cheirocerus, Iheringichthys, Bergiaria, BagropsisParapimelodus, Platysilurus, Platystomatichthys, and Propimelodus.

<i>Steindachneridion</i> Genus of fishes

Steindachneridion is a genus of South American pimelodid catfish.

<span class="mw-page-title-main">Gilded catfish</span> Species of fish

The gilded catfish or jau is a South American catfish of the family Pimelodidae. It is also known as manguruyu or black manguruyu.

<i>Platynematichthys</i> Genus of fishes

Platynematichthys notatus, the coroatá or striped catfish, is a species of catfish of the monotypic genus Platynematichthys of the family Pimelodidae. It is native to the Amazon and Orinoco basins in South America. In the Orinoco this distinctly spotted species reaches up to 1 m (3.3 ft) in standard length, but it reportedly only reaches about half that size in the Amazon.

<i>Pseudoplatystoma tigrinum</i> Species of fish

Pseudoplatystoma tigrinum, the tiger sorubim, tiger shovelnose or caparari is a species of long-whiskered catfish native to the Amazon Basin in South America.

<i>Pinirampus</i> Species of fish

Pinirampus pirinampu is a species of catfish of the family Pimelodidae. P. pirinampu is also known as the flatwhiskered catfish.

<i>Pseudoplatystoma fasciatum</i> Species of fish

Pseudoplatystoma fasciatum or barred sorubim or barred catfish is a species of long-whiskered catfish native to the Suriname, Corantijn and Essequibo. The nocturnal predator feeds mainly on other fish and crabs. Females reach a more notable size. They become sexually mature at 56 cm (22 in), males at 45 cm (18 in) and this species reaches a maximum length of 90 cm (35 in) TL. Fecundity seems to be estimated at 8 million eggs per kg, but was recently measured in aquaculture at a lower, and more likely number of 150,000 eggs laid per kg.

Proteocephalidae is a diverse family tapeworms with nearly 300 recognized species in 66 genera and 13 subfamilies, whose species are found in every continent. They are mainly parasites of siluriforms and other freshwater fishes, but also parasitize reptiles and amphibians. A typical proteocephalid life cycles include planktonic crustaceans, and small fish as intermediate hosts.

<i>Pseudoplatystoma punctifer</i> Species of fish

Pseudoplatystoma punctifer or spotted tiger shovelnose catfish is a species of long-whiskered catfish native to the Amazon basin, in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela. It is a commercially farmed species, and it is difficult to harvest as it appears to be highly selective with its diet and exhibits cannibalistic behaviors. Other behaviors and developmental patterns vary based on both diet as well as parental behaviors that influence the organisms development from the Larval stage.

<i>Pseudoplatystoma reticulatum</i> Species of fish

The barred sorubim is a species of long-whiskered catfish native to the Río de la Plata basin and Amazon basin in South America. It reaches up to about 60 cm (2.0 ft) in length.

Kritsky is a genus of digeneans in the family Aporocotylidae or blood flukes. The name of the genus honours the American parasitologist Delane C. Kritsky.

Brachyplatystoma tigrinum, the zebra shovelnose, or tigerstriped catfish, is a large species of catfish of the family Pimelodidae that is native to the Amazon basin in Brazil, Colombia and Peru. It is entirely piscivorous.

<i>Brachyplatystoma vaillantii</i> Species of fish

Brachyplatystoma vaillantii, the Laulao catfish or piramuta, is a species of catfish of the family Pimelodidae that is native to Amazon and Orinoco River basins and major rivers of the Guianas and northeastern Brazil.

Brachyplatystoma capapretum, the dark caped goliath catfish, also called Peru piraiba catfish or false piraiba, is a species of catfish of the family Pimelodidae that is native to watershed areas of Brazil and Peru.

<i>Brachyplatystoma rousseauxii</i> Species of catfish

Brachyplatystoma rousseauxii, the gilded catfish or dourada, is a species of catfish of the family Pimelodidae that is native to Amazon and Orinoco River basins and major rivers of French Guiana.

References

  1. "Hemisorubim platyrhynchos". Integrated Taxonomic Information System . Retrieved 1 February 2019.
  2. Lundberg, John G.; Akama, Alberto (2005). Buth, D. (ed.). "Brachyplatystoma capapretum: a New Species of Goliath Catfish from the Amazon Basin, with a Reclassification of Allied Catfishes (Siluriformes: Pimelodidae)" (PDF). Copeia . 2005 (3): 492–516. doi:10.1643/CI-04-036R1. S2CID   85923139.
  3. Buitrago-Suárez, Uriel Ángel (2006). "Anatomía Comparada y Evolución de las Especies de Pseudoplatystoma Bleeker 1862 (Siluriformes: Pimelodidae)" (PDF). Rev. Acad. Colomb. Cienc. 30 (114): 117–141. Archived from the original (PDF) on 2007-09-27.
  4. 1 2 3 4 5 Froese, Rainer; Pauly, Daniel (eds.) (2007). "Hemisorubim platyrhynchos" in FishBase . May 2007 version.
  5. 1 2 3 4 5 Penha, J. M. F.; Mateus, L. A. F.; Barbieri, G. (2004). "Age and Growth of the Porthole Shovelnose Catfish (Hemisorubim platyrhynchos) in the Pantanal" (PDF). Braz. J. Biol. 64 (4): 833–840. doi: 10.1590/S1519-69842004000500013 . PMID   15744424.