Overview

Comprehensive Description

Biology

Lives on the bottom and feeds on mollusks, crustaceans, and organic debris. Frequently occurs on sandy bottoms. Often escapes into the sediment where it hides among the anfractuosities of the submerged stocks (Ref. 35381). A juvenile in a stream of the rio Araguaia was recorded to clean the piscivorous characin Hoplias cf. malabaricus (Ref. 50806).
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Distribution

South America: Amazon, Tocantins, Parnaíba, Orinoco, Essequibo River basins and coastal drainages in French Guiana and Suriname (Ref. 37054). Reported from Argentina (Ref. 56308).
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occurs (regularly, as a native taxon) in multiple nations

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National Distribution

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Global Range: Native to South America, from Venezuela and Guianas to Argentina (Fuller et al. 1999). Has been collected in Florida but is not known to be established there (Robins et al. 1991).

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Amazon, Tocantins, Parnaíba, Orinoco and Essequibo River basins and coastal drainages in French Guiana and Suriname: Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Peru, Suriname and Venezuela. But perhaps only coastal drainages of Suriname
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Physical Description

Morphology

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Analsoft rays: 10 - 11
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Size

Maximum size: 220 mm TL
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Max. size

24.0 cm SL (male/unsexed; (Ref. 37054))
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Ecology

Habitat

Environment

demersal; freshwater; pH range: 5.8 - 7.5; dH range: 2 - 20
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Habitat Type: Freshwater

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Migration

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

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Trophic Strategy

Lives on the bottom and feeds on mollusks, crustaceans, and organic debris. Frequently occurs on sandy bottoms. Often escapes into the sediment where it hides among the anfractuosities of the submerged stocks (Ref. 35381). A juvenile in a stream of the rio Araguaia was recorded to clean the piscivorous characin Hoplias cf. malabaricus (Ref. 50806). The study indicated that the cleaning behavior is probably restricted to the juvenile phase. The species shifts its diet as it grows, facultative cleaner (Ref. 50806).
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Diseases and Parasites

Raphidascaroides Infection 1. Parasitic infestations (protozoa, worms, etc.)
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Platydoras costatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial; aquarium: commercial
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Wikipedia

Platydoras costatus

Platydoras costatus, the Raphael catfish, is a species of thorny catfish of the genus Platydoras widespread throughout northern South America down to Argentina.[1] Although long thought to be the striped raphael catfish, this is not the case; the striped raphael catfish is actually Platydoras armatulus.[2] This species grows to a length of 24.0 centimetres (9.4 in) SL.[1] This fish is a minor component of local fisheries and is also found in the aquarium trade.[1]

References[edit]

  1. ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2011). "Platydoras costatus" in FishBase. December 2011 version.
  2. ^ Piorski, Nivaldo M.; Garavello, Julio C.; Arce H., Mariangeles; Pérez, Mark H. Sabaj (2008). "Platydoras brachylecis, a new species of thorny catfish (Siluriformes: Doradidae) from northeastern Brazil". Neotropical Ichthyology 6 (3): 481–494. doi:10.1590/S1679-62252008000300021. 


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