Carolina Ocón

Carolina Ocón
National Scientific and Technical Research Council | conicet · ILPLA Instituto de Limnología `Dr. Raúl A. Ringuelet`

Dr

About

31
Publications
7,204
Reads
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451
Citations
Citations since 2016
14 Research Items
236 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Additional affiliations
April 1999 - present
Universidad Nacional de La Plata
Position
  • Ayudante diplomado
April 1996 - present
National Scientific and Technical Research Council
Position
  • Investigador Asistente

Publications

Publications (31)
Article
The aim of this study was to investigate the effects of agricultural land use and periods of hydrological variability on the environmental variables, as well as macrophyte and macroinvertebrate assemblages in lowland riverine wetlands. As a case study, we compared two periurban wetlands with intensive agricultural land use against two others with e...
Preprint
Full-text available
The aim of this study was to investigate the effects of agricultural land use and periods of hydrological variability on the environmental variables, as well as macrophyte and macroinvertebrate assemblages in lowland riverine wetlands. We compared two wetlands with intensive agricultural land use against two others with extensive livestock consider...
Article
Knowing the interactions between exotic and native species is essential to establish possible threats to the local fauna. In this study, we assessed the use of food resources and diet overlap between a recently introduced snail, Sinotaia quadrata, and a native species, Pomacea canaliculata. We analyzed the gut content and stable isotope of snails a...
Article
Full-text available
En este estudio se caracteriza el ensamble de macroinvertebrados en bañados de desborde fluvial de cuatro arroyos pampeanos bonaerenses con diferentes actividades en el uso del suelo (intensa horticultura y ganadería extensiva) desde un punto de vista estructural y funcional. Se aplicaron índices bióticos, ecológicos, análisis multivariados y se an...
Conference Paper
Full-text available
La importancia de conocer aspectos ecológicos de una especie exótica radica en el riesgo de que la biota regional se vea alterada por interacciones negativas como la competencia por los recursos. En este estudio se analizó la dieta de Sinotaia quadrata, gasterópodo asiático recientemente registrado para Buenos Aires, y de Pomacea canaliculata (espe...
Poster
Las especies exóticas representan posibles amenazas para la fauna nativa; su estudio es fundamental para generar herramientas de manejo. El objetivo de este trabajo fue comparar la densidad, biomasa y producción secundaria de Pomacea canaliculata (nativa) y de Sinotaia quadrata (de origen asiático), ambas de tamaño similar y con ciclos de vida simi...
Poster
Sinotaia quadrata (Caenogastropda, Viviparidae) es un caracol de origen asiático que fue hallado en 2015 en un sistema lótico pampeano. Este trabajo muestra la dinámica poblacional de esta especie en dos sitios del arroyo periurbano Carnaval (La Plata, Buenos Aires), uno aguas arriba (C4) y otro aguas abajo (C5). Se realizaron muestreos mensuales e...
Poster
Cuando una especie es introducida en un nuevo ambiente, es importante conocer, entre otros aspectos, su capacidad reproductiva para poder predecir si dicha especie tiene potencial invasor. Recientemente, el caracol asiático de agua dulce Sinotaia quadrata fue registrado en un arroyo periurbano bonaerense cercano a la ciudad de La Plata. Este estudi...
Article
Full-text available
Sinotaia quadrata is a snail native from Asia recorded for the first time in South America in 2009 in central Argentina. In 2015, this species was also found in a lowland stream with different water qualities. Our aims were to contribute to the knowledge of its population ecology and to compare the individuals from the two locations anatomically. S...
Article
Full-text available
The present study analyzes a battery of biomarkers in the water bug Belostoma elegans from a stream polluted with organic matter (OMS), and another one considered as reference site (RS) during spring-summer season (December to March). Biochemical parameters of glucidic, lipidic and oxidative metabolic pathways were analyzed in males and females of...
Article
Full-text available
Pomacea canaliculata is native to Rio de la Plata basin, and it is invasive in most of South and Southeast Asia after accidental introduction during unsuccessful attempts to establish commercial aquaculture of this species, and being present, the number one pest of rice crops in the region. Investigations in its native habitat are still needed beca...
Article
Full-text available
Pomacea canaliculata is native to Rio de la Plata basin, and it is invasive in most of South and Southeast Asia after accidental introduction during unsuccessful attempts to establish commercial aquaculture of this species, and being present, the number one pest of rice crops in the region. Investigations in its native habitat are still needed beca...
Poster
Sinotaia quadrata (Caenogastropoda) es una especie exótica proveniente de Asia recientemente citada para Argentina. Su estudio resulta de extrema importancia debido a que, como potencial especie invasora, existe el riesgo de que altere la biota regional e interactúe de forma negativa con las especies autóctonas (depredación, exclusión competitiva,...
Poster
Full-text available
Introducción. Los macroinvertebrados son un grupo bien representado en los ecosistemas de agua dulce y ampliamente utilizados en la evaluación de la calidad del agua. Problema. Muchos índices bióticos utilizados para tal fin se basan en valores de tolerancia estimados en ciertos casos a partir de información obtenida de la bibliografía, no siempre...
Article
Full-text available
ABSTRACT One of the most important effects derived from the intensive land use is the increase of nutrient concentration in the aquatic systems due to superficial drainage. Besides, the increment of precipitations in South America connected to the global climate change could intensify these anthropic impacts due to the changes in the runoff pattern...
Article
We investigated the responses of the assemblage of Oligochaeta and Aeolosomatidae to organic pollution; comparing taxonomic richness, diversity, abundance, and diet of the individuals inhabiting two lowland streams with different degrees of anthropic impact (the Rodríguez and the Carnaval) belonging to the Río de la Plata basin, Argentina. The phys...
Article
Full-text available
We investigated the responses of the assemblage of Oligochaeta and Aeolosomatidae to organic pollution; comparing taxonomic richness, diversity, abundance, and diet of the individuals inhabiting two lowland streams with different degrees of anthropic impact (the Rodriguez and the Carnaval) belonging to the Rio de la Plata basin, Argentina. The phys...
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...
Article
Full-text available
The diet and trophic relationships between the macroinvertebrates Phyllogomphoides joaquini Rodrigues Capítulo, 1992 and Coenagrionidae (Odonata), Chironomidae (Diptera), Diplodon delodontus (Lamarck, 1919) (Bivalvia: Hyriidae), and Pomacea canaliculata (Lamarck, 1822) (Gastropoda: Ampulariidae) and the fishes Pimelodella laticeps Eigenmann, 1917 (...
Article
The present continuous anthropogenic pressure has resulted in an enhancement of nutrient inputs into rivers and streams. This situation has worsened, mainly in agricultural areas, causing an accelerated eutrophication. Macroinvertebrate feeding strategies reflect the species’ adaptations to environments. For a characterization of the macroinvertebr...
Article
One of the possible consequences of climatic change for streams and rivers in the pampean region of South America is an increment in nutrient loads. To analyze this possible perturbation on a biological scale, the response of oligochaetes to an experimental eutrophication of the La Choza Stream, Argentina was studied. We proposed that the addition...
Article
The objective of this work was to analyse zoobenthic assemblages in the coastal sector of the Río de La Plata, Argentina, after a petroleum spill. Sampling stations were located in representative sites of various landscapes. Structure, composition, physico-chemical parameters and seasonal changes were recorded in order to assess taxocenosis evoluti...
Article
The ingress of an urban stream carrying high contaminant loads into a large coastal river originates a “dispersion plume” subject to the hydrological conditions of a river affected by tidal influences. In the present study 21 sites within the “contaminant plume” of the Riachuelo River in the Rio de la Plata were analysed on the same date in order t...
Article
The objective of this work was to analyse the presence and abundance of Ephemeroptera and other sensitive invertebrates in two streams in the pampean area of Argentina, which have different ecological conditions. Juan Blanco stream is a pristine system and a reference site for the area while Buñirigo stream is affected by industrial effluents comin...
Article
Full-text available
The present study shows the most important results in the sampling carried out in the Río de la Plata river from the year 1993. The main components of the zoobenthos in the studied area were the oligochaetes and nematods, particularly in sectors with high organic matter content and low dissolved oxygen. Tubificidae was very frequent, mainly Limnodr...
Article
Two invertebrate species (Hyalella curvispina and Palaemonetes argentinus) and one macrophyte (Egeria densa) from a naturally high nutrient content system (Pampean rivers of La Plata, Argentina) were evaluated for their potential use in situ assays aiming to assess changes in water quality. Invertebrates were individually placed in cylindrical cham...
Article
Full-text available
Macro-invertebrate communities and environmental variables were assessed seasonally for two years in seven streams in NorthEastern of Buenos Aires province (Argentina) in order to analyse changes in their structure and composition in relation with the quality of the water. The study includes pristine streams and others affected by urban and industr...
Article
Macro-invertebrate communities and environmental variables were assessed seasonally for two years in seven streams in North-Eastern of Buenos Aires province (Argentina) in order to analyse changes in their structure and composition in relation with the quality of the water. The study includes pristine streams and others affected by urban and indust...
Article
Full-text available
The Rio de la Plata river present along the south coastal fringe different invertebrate assemblages related with substrate type, size sediment grains and organic matter content into the bedsediments. Other important factors influencing the distribution of benthos community in this river are the salinity and suspended solids of the water and the pro...

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Projects

Project (1)
Project
We study the poorly known ecology of Sinotaia quadrata (population ecology, diet, tolerance to pollution). This asiatic snail was found in a lowland stream of Buenos Aires province in 2015. We aim to know its ecology to assess the potential risk of invasion. Does it represent a threat for the native snails?