Dario Cesar Colautti

Dario Cesar Colautti
Instituto de Limnología "Dr. Raúl A. Ringuelet" | ILPLA · Lab. Ecología de Peces

PhD

About

100
Publications
36,136
Reads
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1,164
Citations
Additional affiliations
April 2004 - November 2012
Instituto de Investigaciones Biotecnológicas Dr. Rodolfo A. Ugalde - Instituto Tecnológico de Chascomús
Position
  • Researcher

Publications

Publications (100)
Article
Full-text available
Headwater streams play an essential role in catchment ecosystem processes and are particularly vulnerable to land use degradation and anthropic hydrological alterations. Considering that fish assemblages are reliable indicators of the ecological integrity of streams, we evaluated the ichthyofauna structure in four headwater Pampean streams located...
Article
Full-text available
The Matanza Riachuelo Basin is one of the most polluted watersheds in the world. We assessed the relationships between land use, stream-water quality, and the structure of the fish assemblages on a subbasin scale from data obtained in 44 sampling sites. A gradient of change from the rural upper sector to the urbanized and industrialized lower basin...
Article
Full-text available
Análisis espacio temporal de las capturas de peces en el rio Uruguay en el tramo compartido entre argentina y Uruguay, mediante la utilización de redes agalleras, red de arrastre, trampa y espinel. Análise espaço tempo de capturas de peixes no rio Uruguai na seção compartilhada entre argentina e Uruguai, através do uso rede de emalhar, rede de arra...
Article
Riparian areas of riverine plains develop extensive floodable areas named riverine wetlands, which are essential to the water cycle balance and ecosystem dynamics. In this study, we contrasted the hydrological and physicochemical variables of riverine wetlands of both peri-urban areas impacted by intensive farming and those of rural areas with the...
Article
Full-text available
The relationship between water temperature and gonadal maturation of a landlocked ecophenotype of marine pejerrey (Odontesthes argentinensis) in La Salada de Pedro Luro lake was analysed during three spawning seasons. Mainly vitellogenic females were found in August (winter), some ovulating in October (mid-spring) and with atretic oocytes in Decemb...
Article
Ecological aquaculture promotes the development of sustainable farming systems, focusing on a wide range of ecosystem elements. The ecological aquaculture of the zooplanktivorous pejerrey (Odontesthes bonariensis) in floating cages in Pampean shallow lakes (Argentina) needs to be carried out considering the hydrological and chemical variations as m...
Article
Cochicó belongs to “Encadenadas del Oeste” system of lakes being a typical water body of the Pampas region. The most abundant fish species in this lake is the pejerrey (Odontesthes bonariensis) valued due to the quality of its flesh and as a game fish. The aim of this study was to compare the gonadal stages of pejerrey during two consecutive spawni...
Article
Full-text available
Gómez lake (34 ° 39 ‘S 61 ° 01’ W) is a typical shallow lake of Pampas region placed in the upper area of the Salado river. The most abundant fish species in this lake is the pejerrey (Odontesthes bonariensis) valued due to the quality of its flesh and its attractiveness as a game fish. The aim of this study was to describe for the first time in th...
Article
Full-text available
The age and growth of Pseudoplatystoma corruscans, is analyzed on specimens landed in Puerto Antequera, Province of Chaco, Argentina. The study is based on length frequency distribution of 1192 individuals and growth marks of 293 pectoral spines. Previously to age assignation based on spines readings, we performed analyses that ruled out age-associ...
Article
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Las actividades humanas en los sistemas naturales promueven cambios que ponen en peligro a las comunidades acuáticas por pérdida de nichos ecológicos generando disminución de la riqueza y diversidad. El objetivo de esta investigación fue analizar los ensambles de aves y peces asociados a cuatro bañados de arroyos pampeanos con usos del suelo periur...
Conference Paper
Full-text available
El Río de la Plata (RdlP) se caracteriza por su elevada inestabilidad ambiental, fuertemente influenciada por los vientos y las mareas. Esta situación ha condicionado históricamente desde lo logístico y económico a los estudios ictiológicos en este ambiente tan extenso. Con el objetivo de encontrar una alternativa para superar estas limitaciones y...
Article
In South America, the order Atheriniformes includes the monophyletic genus Odontesthes with 20 species that inhabit freshwater, estuarine and coastal environments. Pejerrey Odontesthes argentinensis is widely distributed in coastal and estuarine areas of the Atlantic Ocean and is known to foray into estuaries of river systems, particularly in condi...
Article
Full-text available
Sex-determining genes have been successively isolated in several teleosts. In Odontesthes hatcheri and O. bonariensis, the amhy gene has been identified as a master sex-determining gene. However, whether this gene is conserved along related species is still unknown. In this study, the presence of amhy and its association with phenotypic sex was ana...
Article
Full-text available
Common carp ( Cyprinuscarpio ) is a global invader that exhibits a wide distribution in Argentina, particularly in shallow lakes and wetlands of the Pampean region. The hydrological conditions of these environments are driven by variations in annual precipitation that determine inter annual changes in water levels leading to flood-drought cycles. T...
Article
Full-text available
Cheirodon interruptus is a ubiquitous small characid that inhabits the Pampean region and commonly used as bait. Its vast market is supplied from the wild population causing a significant environmental impact. In this study, we assess the effect of photoperiod on ovarian maturation in order to evaluate its potential as a tool to manipulate reproduc...
Article
Full-text available
Feeding of Gymnogeophagus meridionalis (Osteichthyes, Cichlidae) in an urban stream. The Martín stream is an urban water course with moderate anthropic impact located in La Plata (Buenos Aires). Gymnogeophagus meridionalis Reis & Malabarba, 1988 is a fish of Cichlids family that is common in natural environments or those modified by human. The pape...
Conference Paper
El pejerrey (Odontesthes bonariensis) es un pez zooplanctívoro de gran relevancia ecológica y económica, especialmente para la ecoregión Pampeana. En su cultivo extensivo en jaulas flotantes en lagunas pampeanas se ha identificado la disponibilidad de zooplancton como una variable clave. Con el objetivo de obtener información que permita desarrolla...
Technical Report
Full-text available
El sábalo es una especie de gran importancia ecológica y económica que se distribuye en ríos de la Cuenca del Plata, la segunda en importancia en Sudamérica. Es un eslabón crucial en los ecosistemas paranoplatenses ya que es sostén de su cadena trófica. Presenta alta fecundidad, alta longevidad (hasta 25 años) y comportamiento migratorio de alta mo...
Article
Recreational and artisanal fisheries are common activities in Latin America often interpreted as competitors due to the use of common-pool resources in coastal areas. Conflicts between the (historical) artisanal fisheries (AF) and recreational fisheries (RF) in Anegada Bay resulted in the prohibition of the former. This study addresses key fisherie...
Article
The presence of microplastics (MPs) in gut contents of coastal freshwater fish of the Rio de la Plata estuary was studied. Samples were taken in six sites where 87 fish belonging to 11 species and four feeding habits were captured. Presence of MPs was verified in the 100% of fish. The fibres represented the 96% of MPs found. The number of MPs in gu...
Article
Ecological aquaculture systems consider the natural and social environments in which they are situated in the search to contribute to environmental sustainability. In South America, the aquaculture of the native zooplanktivorous fish Odontesthes bonariensis (“pejerrey”) has some constraints that could be overcome by applying extensive culture syste...
Article
Full-text available
The Martín stream is an urban water course with moderate anthropic impact located in La Plata (Buenos Aires). Gymnogeophagus meridionalis Reis & Malabarba, 1988 is a fish of Cichlids family that is common in natural environments or those modified by human. The paper objective is to characterize the G. merdionalis diet at the mentioned stream. Fish...
Chapter
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Hydrological ecosystem services involve the regulation of water flows, the reduction of the flooding impact, the soil erosion and the sediment accumulation in the watercourses, also including the maintenance and improvement of the water quality, the aquiferous recharge and the aquatic habitats. The impermeability of the soil due to urbanization, th...
Chapter
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En esta sección, se analizan las presentaciones realizadas por los participantes del taller. Sobre la base de sus contenidos se elabora una discusión en la cual se identifican los puntos coincidentes en lo referente a problemáticas, críticas e interpretaciones acerca de la situación actual del manejo de los recursos pesqueros de la pampasia. Luego...
Article
Full-text available
This study documents the presence of Cyprinus carpio in 119 natural environments and 49 artificial habitats in Argentina, showing an exponential increment of invaded locations over time since it was introduced in the nineteenth century. Geographic expansion patterns revealed that since its initial introduction, species records demonstrate an increm...
Chapter
Full-text available
The La Plata River system can be defined as a funnel coastal plain tidal river with a semi-closed shelf at the mouth. La Plata River is both the world’s widest freshwater system and an estuary that drains the second largest basin in South America and the fifth largest in the world. The Rio de la Plata system is shared by Argentina and Uruguay and h...
Conference Paper
Full-text available
La Cuenca Matanza-Riachuelo se localiza al noreste de la provincia de Buenos Aires. El uso del suelo en la cuenca alta y media es predominantemente agrícola-ganadero con escasa urbanización, mientras que en la baja se encuentra la mayor urbanización e industrialización del país. El objetivo de este trabajo es describir y analizar la estructura de l...
Poster
Full-text available
The monitoring of fisheries landings help quickly characterize a fishery; long time series provide trends, essentials for the rational management of fishing. In the fluvial axis Paraná - Paraguay there are initiatives of monitoring of landings, carried out by provinces - such as Chaco and Santa Fe - and by the national Direction of Inland Fisheries...
Article
Full-text available
El pejerrey es la especie de mayor importancia deportiva en lagos someros templados y embalses de Argentina y el desarrollo de su acuicultura data de cien años atrás. Un impedimento común para el desarrollo de la acuicultura del pejerrey es el pobre crecimiento que manifiesta bajo cultivo intensivo. El objetivo de este estudio fue evaluar la posibi...
Article
Full-text available
Pampean lakes are characterised by the alteration of flood and drought periods which, in turn, influence the biotic communities; however, little is known about its effects on fish assemblage in an extended temporal scale. The aim of this work was to analyse the temporal variability of the fish assemblage in Chascomús Lake, the most studied shallow...
Article
Full-text available
The first list of fish species from the Río Pilcomayo National Park and Ramsar Site (RPNP), located in the Wet Chaco plains of northern Argentina is presented here. Samplings were carried out bimonthly from December 2006 to January 2008 in sites representative of the different landscapes, in both dry and wet seasons. A total of 77 species were coll...
Article
Full-text available
Odontesthes bonariensis is an inland water fish from the Pampas region, valued due to the quality of its flesh and its attractiveness as a game fish. Chasico´ Lake located in the south of the pampean region is apreciated by fishermen due to O. bonariensis abundance. However, in the last year, a reduction in their catches was recorded. In this work,...
Article
Full-text available
The theory of ecological stoichiometry holds that heterotrophs are mostly homeostatic and exhibit less variation in body stoichiometry than do autotrophs. Most studies of stream foodweb stoichiometry have been done in low-nutrient environments. Little is known about foodweb stoichiometry in nutrient-rich streams, in which a higher level of stoichio...
Thesis
Full-text available
La región del Delta viene siendo sometida a crecientes impactos antrópicos, obras hidrotécnicas y actividades productivas como ganadería y forestación sin que se haya evaluado aún adecuadamente su impacto sobre las comunidades de peces. Ello afecta los ambientes lénticos que se encuentran en tanto en las islas como en la llanura de inundación que a...
Technical Report
Full-text available
Durante el periodo comprendido entre los años 2012 a 2013, se llevaron a cabo seis campañas de muestreo en el marco del proyecto “Evaluación biológica y pesquera de especies de interés deportivo y comercial en el Río Paraná, Argentina”. El proyecto, que originalmente se denominó “Proyecto de Evaluación del Recurso Sábalo en el Río Paraná”, surge, e...
Article
Full-text available
The seasonal variation of the inshore fish assemblage of Anegada Bay, North Patagonia, Argentina is described here. Three areas were seasonally sampled from 2007 to 2009 by means of a gang of bottom gill-nets. We found 21 coastal fish species, but species richness and fish number and weight changed throughout the year. The six species classified as...
Article
An experiment was conducted for 80 days at La Salada de Monasterio Lake (Buenos Aires, Argentina) to assess the effect of stocking density and natural food availability on the growth and production of zooplanktivorous juveniles of pejerrey (Odontesthes bonariensis) in extensive cage culture. Ten cages were installed and stocked with 33-day-old fish...
Article
Full-text available
We assessed the effects of nutrient enrichment on three stream ecosystems running through distinct biomes (Mediterranean, Pampean and Andean). We increased the concentrations of N and P in the stream water 1.6–4-fold following a before–after control–impact paired series (BACIPS) design in each stream, and evaluated changes in the biomass of bacteri...
Data
Full-text available
Juvenis de pejerrey, Odontesthes bonariensis, foram expostos a Vermelho de Alizarina S (ARS) 0,1% de duas formas, sozinho ou com uma imersão anterior em 2,2% de solução salina (Indução osmótica, IO) para melhorar o método de marcação ARS. Os procedimentos foram realizados no campo e os peixes foram liberados em gaiolas (tanques-rede) de 1 m3 na lag...
Article
Full-text available
This study assesses for the first time the relationship between annual cycles of different biological indices with growth patterns of a marine pejerrey Odontesthes argentinensis population near its southern-distribution boundary in North Patagonia. The reproductive period is between September and November evidenced by an increase in the gonado-soma...
Article
Full-text available
The Lower La Plata River basin contains between 160 and 260 native species depending on the river segment, with a few stretches containing locally endemic species. Extinction risk analysis for 185 freshwater fish in the lower La Plata River basin is presented for the first time on the basis of regionally standardized International Union for Conserv...
Article
Full-text available
This work provides, based on data from roving creel surveys, the first quantitative analysis for a main recreational fishery of the southwestern Atlantic coast. Anglers interviewed were willing to accept minimum size limits but mostly did not approve the maximum daily catch, despite the fact that they considered that the fishery quality was decreas...
Article
Full-text available
The invasive freshwater bivalve Limnoperna fortunei is native to Chinese and Southeast Asian rivers and creeks. The impact of L. fortunei in South America involves both the human and the natural environments. Larvae and juveniles enter water systems of the drinking water plants and cooling systems of industries and power plants where they settle, m...
Article
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This note presents the first records of Astyanax pelegrini Eigenmann, 1907 and Triportheus pantanensis Malabarba, 2004 for the province of Formosa, Argentina from fish surveys conducted in the Río Pilcomayo National Park and Ramsar Site. In the case of T. pantanensis, this occurrence represents the first record of this species for Argentina.
Article
Full-text available
The trahira Hoplias aff. malabaricus is a top predator in pampean shallow lakes and is highly appreciated by recreational anglers and artisanal fishermen. Trahira growth from Yalca shallow lake was determined by lepidological analysis and age validated by marginal increment. When growth was fitted to the von Bertalanffy model, annual classes exhibi...
Article
Full-text available
The smooth-hound Mustelus schmitti is a commercially important and common target shark inhabiting the southwestern Atlantic coastal system and is usually found in shallow waters. Using experimental and artisanal fishing records, we assessed seasonal biological and demographic characteristics related to fishing of the smooth-hound and its potential...
Article
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La laguna Chascomús es un típico lago somero, eutrófico y turbio de la Pampa Deprimida. Se encuentra permanentemente mezclada y presenta un grado elevado de homogeneidad espacial. La alternancia entre períodos de déficit y de exceso de agua, característica de la región, determina que la laguna sufra ciclos periódicos de sequía e inundación. Las pri...
Article
Full-text available
Laguna Chascomús is an eutrophic, turbid, shallow lake typical of the Pampa region of Argentina. This shallow lake is permanently mixed and displays a high degree of spatial homogeneity. The cyclical periods of excess and shortage of rain, characteristic of this area, result in periodic drying and flooding events. According to newspaper articles pu...
Article
Pejerrey is an important zooplanktivorous native fish of the Argentinean inland waters. It has been traditionally propagated for stocking purposes by relatively costly semi-intensive and intensive methods. In this study, we evaluated the implementation of an extensive culture method by using floating cages in a shallow pampean lake. Four cages were...