Fish fauna from the Langueyú basin, Argentina: a prairie stream in a heavily modified landscape
Latest version published by Biodiversity Data Journal on 31 August 2021 Biodiversity Data Journal

On the Pampa plain, one of the most productive modified areas of Argentina, important changes in land uses have drastically altered the landscape during the last decades. This has led to an increased deterioration of surface waters affecting fish that inhabit them. We provide a list of fish species inhabiting an unsurveyed prairie stream of this region. Environmental variables were measured and fish samplings were conducted in 3 sites of the Langueyú stream. A total of 15 species belonging to 10 families and 6 orders were collected. Characiformes and Siluriformes were the richest orders. Characidae was the most representative family. Species richness was highest when compared with other similar regional environments without connection with the Salado river basin. Most of the fish species collected are typical of the region but others are species which typically do not progress beyond the Salado river basin. The role of human intervention in fish species distribution is discussed.

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Researchers should cite this work as follows:

Bertora A, Grosman F, Sanzano P, Rosso JJ (2018) Fish fauna from the Langueyú basin, Argentina: a prairie stream in a heavily modified landscape. Check List 14 (2): 461–470.


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Checklist List of species; freshwater; richness; Pampean Plain; Langueyú stream; Inventoryregional


Who created the resource:

Andrea Bertora
Doctoral student
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires

Who can answer questions about the resource:

Andrea Bertora
Doctoral student
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires

Who filled in the metadata:

Geographic Coverage

Pampean Plain, Argentina

Bounding Coordinates South West [-41.443, -63.281], North East [-32.843, -56.514]
Taxonomic Coverage

Fish sampling yielded a total of 15 species belonging to 10 families and 6 orders. Characiformes and Siluriformes were the richest orders with 5 (33% of species collected) species each. Characidae was the most representative family with 4 species. The remaining fish families all contained 1 species except for the Heptapteridae and Loricariidae, which were represented by 2 species each. All fish species collected are native, with the exception of Cyprinus carpio.

Class  Actinopterygii
Superorder  Ostariophysi
Species  Astyanax pampa,  Bryconamericus iheringii,  Cheirodon interruptus,  Oligosarcus jenynsii,  Cyphocharax voga,  Australoheros facetus,  Cyprinus carpio,  Jenynsia multidentata,  Cnesterodon decemmaculatus,  Corydoras paleatus,  Pimelodella laticeps,  Rhamdia quelen,  Hypostomus commersoni,  Loricariichthys anus,  Synbranchus marmoratus
Temporal Coverage
Start Date / End Date 2016-11-21 / 2018-02-07
Project Data


Title Environmental status of the Langueyú stream, its relationship with land use and the influence on fish communities.
Identifier -
Funding Comisión de Investigaciones Científicas de la Provincia de Buenos Aires

The personnel involved in the project:

Juan José Rosso
Fabián Grosman
Pablo Sanzano
Sampling Methods


Study Extent The Langueyú stream has its headwaters in the Tandilia hills (elev. 50–250 m) in southeastern Buenos Aires province. Water flows in a southwest to northeast direction without receiving tributaries of relevance (Ruíz de Galarreta et al. 2013). An artificial channel connects the lowland reaches of this small stream with Samborombón Bay (Río de la Plata estuary). The climate is temperate semi-moist to moist (Thornthwaite and Mather 1957), with annual average rainfall of 838 mm and an average temperature of 13.8 °C. As for many basins in temperate latitudes of the globe (Allan 2004), drastic changes in land uses have been occurred in the Langueyú basin during the last decades (Vásquez and Zulaica 2011).
Quality Control -

Method step description:

  1. Three sites (1: 37°11ʹ15ʺ S, 059°08ʹ W; 2: 37°05ʹ47ʺ S, 059°06ʹ29ʺ W; 3: 36°55ʹ38ʺ S, 058°56ʹ 08ʺ W) were sampled bimonthly in the Langueyú stream during 2 different periods from November 2016 to March 2017 and from October 2017 to February 2018. Field samplings were conducted under scientific fishing permit issued by the Ministerio de Agroindustria of Buenos Aires Province (Permission No. 409). Fish sampling was performed using different nets and fishing devices: trammel nets (12 m), beach seine net (12 m), artisanal tramps and long-lines (9 m). Fish captured were euthanized by an overdose in benzocaine solution, fixed in 10% formalin solution and preserved in 70% ethanol. Fish species were identified following Ringuelet et al. (1967), López et al. (1987), Casciotta et al. (2005), Rosso (2006), Miquelarena et al. (2008), and Almirón et al. (2015).Valid species names, their authorities, year of publication and synonyms are listed following Eschmeyer et al. (2017) and Mirande and Koeber (2015). Tolerance to diverse environmental variables, ecology, and behavior aspects for all collected species were summarized by Rosso (2006). Voucher specimens were deposited at the fish collection of the Instituto de Investigaciones Marinas y Costeras (UNMDP), in Mar del Plata, Argentina. Environmental variables measured in situ included: dissolved oxygen, water temperature, water specific conductance, and pH. Total suspended solids were quantified after processing water samples in the laboratory. Depth of water column and fine sediment substrate and wet channel width were also reported.
Collection Data
Collection Name Voucher specimens were deposited at the fish collection of the Instituto de Investigaciones Marinas y Costeras (UNMDP), in Mar del Plata, Argentina.
Collection Identifier A. Astyanax pampa, UNMDP 4853, 60 mm SL. B. Bryconamericus iheringii, UNMDP 4854, 53 mm SL. C. Cheirodon interruptus, UNMDP 4855, 40 mm SL. D. Oligosarcus jenynsii, UNMDP 4857, 120 mm SL. E. Cyphocharax voga, UNMDP 4856, 193 mm SL. F. Australoheros facetus, UNMDP 4858, 73 mm SL. G. Cyprinus carpio, UNMDP 4859, 350 mm SL. H. Jenynsia multidentata, UNMDP 4860, 38 mm SL. I. Cnesterodon decemmaculatus, UNMDP 4861, 25 mm SL. J. Corydoras paleatus, UNMDP 4862, 58 mm SL. K. Pimelodella laticeps, UNMDP 4863, 86 mm SL. L. Rhamdia quelen, UNMDP 4864, 345 mm SL. M. Hypostomus commersoni, UNMDP 4865, 280 mm SL. N. Loricariichthys anus, UNMDP 4866, 205 mm SL. O. Synbranchus marmoratus, UNMDP 4867, 430 mm SL.
Specimen preservation methods Alcohol
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