United States (contiguous states) country information

Common names: Brown hoplo
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: minor commercial | Ref: Orfinger, A.B., 2015
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: A population was discovered in ditches of the Indian River lagoon system of Florida in late 1995 (Ref. 74657). Populations have been found in the St. Johns and Kissimmee River drainages (Ref. 95869). Collected from Tosohatchee Wildlife Management Area (c. 28°29'56"N, 80°55'1"W), a protected area of the middle St. Johns River Basin spanning 12,424.25 hectares. Small-scale commercial fishery exists in peninsular Florida (Ref. 104645).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Bartley, D.M. (comp./ed.), 2006
National Database:

Common names from other countries

Cascudo, Cascarudo, 滨岸护胸鲶, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Callichthyidae (Callichthyid armored catfishes) > Callichthyinae
Etymology: Hoplosternum: Greek, hoplon = weapon + Greek, sternon = chest (Ref. 45335).

Issue
See Reis (1997) for phylogeny and Reis (1998) for detailed description.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; depth range 1 - ? m (Ref. 11225). Subtropical; 18°C - 26°C (Ref. 2060); 11°N - 37°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Most Cis-Andean South American river drainages north of Buenos Aires, Argentina (Ref. 37395). Introduced in the USA (Ref. 104645).

Length at first maturity / Size / Weight / Age

Maturity: L_m 16.7 range ? - ? cm
Max length : 26.3 cm TL male/unsexed; (Ref. 104645); max. reported age: 4 years (Ref. 51639)

Obligate air-breathing (Ref. 126274); Inhabits swamps (Ref. 11225). During the rainy season, adults consume a great quantity of chironomids associated with detritus. During the dry season, they feed mostly on terrestrial insects, micro-crustaceans, aquatic Diptera, and detritus. Absorbs a great quantity of anaerobic bacteria from the substrate (Ref. 27188). First reproduction occurs after one year (Ref. 35381). Used to be cultured commercially in Guyana (Ref. 7306). Cultured in Trinidad on a semi-commercial scale (Ref. 11225).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Reproduction begins with the rainy season (December-January). The male, at times helped by the female, builds a nest made of a cluster of mucus bubbles and vegetal matter. Responding to a nuptial parade, the female lays down her eggs (5,000 to 20,000, measuring1.8 mm in diameter) which are fertilized by sprinkling sperm previously collected in her mouth. The male guards the eggs during incubation and becomes very aggressive (Ref. 35381).

Main reference Upload your references | References | Coordinator : Reis, Roberto E. | Collaborators

Reis, R.E., 1997. Revision of the neotropical catfish genus Hoplosternum (Ostariophysi: Siluriformes: Callichthyidae), with the description of two new genera and three new species. Ichthyol. Explor. Freshwat. 7(3-4):299-326. (Ref. 26144)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 15 October 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquaculture: commercial; aquarium: commercial

FAO(Aquaculture systems: production; ; publication : search) | FishSource |

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Trophic ecology
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Ecology
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01950 (0.01418 - 0.02681), b=3.00 (2.91 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.7 ±0.0 se; based on diet studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4; K=0.6-1.3; Fec = 5,000).

Fishing Vulnerability (Ref. 59153): Low vulnerability (16 of 100).

Price category (Ref. 80766): Unknown.

Hoplosternum littorale (Hancock, 1828)