Avances en el desarrollo del cultivo de la mojarra (Cheirodon interruptus) como alternativa a la explotación de poblaciones silvestres

Fil: Maiztegui, Tomás. IIB-INTECH. Instituto Biotecnológico Chascomús. UNSAM; ArgentinaFil: Campanella, Daniela. IIB-INTECH. Instituto Biotecnológico Chascomús. UNSAM; ArgentinaFil: Colautti, Darío César. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

A potential biocide for control of the golden mussel, Limnoperna fortunei

We assessed to response of larvae of the golden mussel (Limnoperna fortunei) to different concentrations of a quaternary ammonium polymer (Bulab 6002 ®) in order to estimate its effectiveness in controlling this invasive mussel. Mussels were collected along the coast of the Rio de la Plata, Argentina, and were tested in two laboratory trials. The estimated median lethal concentration for these 24-h exposures were 9.6 mg/L and 4, 6 mg/L, indicating that this biocide may be suitable as a control agent for this mussel.Facultad de Ciencias Naturales y MuseoInstituto de Limnología "Dr. Raul A. Ringuelet

A potential biocide for control of the golden mussel, Limnoperna fortunei

We assessed to response of larvae of the golden mussel (Limnoperna fortunei) to different concentrations of a quaternary ammonium polymer (Bulab 6002 ®) in order to estimate its effectiveness in controlling this invasive mussel. Mussels were collected along the coast of the Rio de la Plata, Argentina, and were tested in two laboratory trials. The estimated median lethal concentration for these 24-h exposures were 9.6 mg/L and 4, 6 mg/L, indicating that this biocide may be suitable as a control agent for this mussel.Facultad de Ciencias Naturales y MuseoInstituto de Limnología "Dr. Raul A. Ringuelet

Cambios en los indices biológicos de la tararira, hoplias malabaricus (bloch, 1794) en un ciclo anual en la Laguna Yalca, provincia de Buenos Aires, Argentina

Fil: Balboni, Leandro. Instituto Tecnológico de Chascomús, IIB-INTECH. Chascomús; ArgentinaFil: Colautti, Darío César. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Baigún, Claudio Rafael Mariano. Instituto Tecnológico de Chascomús, IIB-INTECH. Chascomús; Argentin

Ictiofauna de un ambiente lótico suburbano : EL arroyo Rodríguez (Buenos Aires, Argentina)

Fil: Remes Lenicov, Mauricio. Instituto de Limnología Raúl Ringuelet, La Plata, ArgentinaFil: Colautti, Darío César. Ecología y Producción Pesquera, Instituto de Investigaciones Biotecnológicas, Instituto Tecnológico de Chascomús, Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Universidad Nacional de San Martín, UNSAM, Camino Circunvalación Laguna, Km 6, CP 7130, Chascomús, Buenos Aires, ArgentinaFil: López, Hugo Luis. División Zoología Vertebrados, FCNyM, UNL

Estudio ictiológico del puerto de la ciudad de Buenos Aires

The port of Buenos Aires is located in the Rio de la Plata river on the riverside of the homonymous city. The fish community that inhabits the port water’s was studied in order to know the specific composition, relative abundance, spatial distribution and its relationships with the port activities. Ten sampling places were considered, seven inside the port and three in the access channels. The sampling was realised on August and September of 1998, using active and passive fishing gears. Diversity indices, Margalef' (Rl) and Shannon and Weaver (HO, were calculated. A cluster analysis was carried out with relative abundance of each taxa. In access channels, four species were captured and its relative abundance and diversity were similar for each stations. Contrarily inside the port twenty-seven species was registered, the relative abundance and specific composition were more fluctuate than out side. The heterogeneity observed in the distribution of the fish community would be linked to the design of the port and the activities that are developed in each place

Icthyological study from the port of Buenos Aires city

The port of Buenos Aires is located in the Rio de la Plata river on the riverside of the homonymous city. The fish community that inhabits the port water’s was studied in order to know the specific composition, relative abundance, spatial distribution and its relationships with the port activities. Ten sampling places were considered, seven inside the port and three in the access channels. The sampling was realised on August and September of 1998, using active and passive fishing gears. Diversity indices, Margalef' (Rl) and Shannon and Weaver (HO, were calculated. A cluster analysis was carried out with relative abundance of each taxa. In access channels, four species were captured and its relative abundance and diversity were similar for each stations. Contrarily inside the port twenty-seven species was registered, the relative abundance and specific composition were more fluctuate than out side. The heterogeneity observed in the distribution of the fish community would be linked to the design of the port and the activities that are developed in each place.Instituto de Limnología "Dr. Raúl A. Ringuelet"Comisión de Investigaciones Científicas de la provincia de Buenos Aire

Revisión de los temas del taller

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 de este planteo, se evalúan nuevas propuestas de manejo desde los enfoques adaptativo y ecosistémico, que se considera podrían ajustarse mejor a la dinámica de los ecosistemas acuáticos pampeanos y sus pesquerías.In this section, the presentations made by the workshop participants are analyzed. Based on its contents the matching points in terms of problems, reviews and interpretations about the current situation of the management of fisheries resources of Pampa Plain are identified and discussed. After this pose, new management proposals are evaluated from the adaptive and ecosystem approaches, considering that they could suit to the dynamics of these aquatic ecosystems and their fisheries.El taller al que se refiere el trabajo es el Taller de normas y criterios actuales para el manejo de recursos pesqueros pampeanos, dictado en el marco del VIII EMEAP.Instituto de Limnología "Dr. Raúl A. Ringuelet

Potencial control biológico del molusco invasor Corbicula fluminea (Müller, 1774) en el Río de la Plata

Hasta la fecha tres especies de bivalvos invasores ingresaron en Sudamérica, utilizando al Río de la Plata como vía de acceso: Entre fines de la década del ’60 y principios del ’70, Ituarte (1981), cita para el Río de la Plata y por primera vez para América del Sur, la presencia de dos especies de bivalvos infaunales originarios del sudeste de Asia, Corbicula fluminea (Müller, 1774) y C. largillierti (Philippi, 1811). En el año 1991, se registra por primera vez en América, sobre el litoral rioplatense a Limnoperna fortunei (Dunker, 1857), una especie de mitilido asiático, epifaunal, bisado (Pastorino, et al., 1993).Facultad de Ciencias Naturales y Muse

Estudio ictiológico del puerto de la ciudad de Buenos Aires

The port of Buenos Aires is located in the Rio de la Plata river on the riverside of the homonymous city. The fish community that inhabits the port water’s was studied in order to know the specific composition, relative abundance, spatial distribution and its relationships with the port activities. Ten sampling places were considered, seven inside the port and three in the access channels. The sampling was realised on August and September of 1998, using active and passive fishing gears. Diversity indices, Margalef' (Rl) and Shannon and Weaver (HO, were calculated. A cluster analysis was carried out with relative abundance of each taxa. In access channels, four species were captured and its relative abundance and diversity were similar for each stations. Contrarily inside the port twenty-seven species was registered, the relative abundance and specific composition were more fluctuate than out side. The heterogeneity observed in the distribution of the fish community would be linked to the design of the port and the activities that are developed in each place.The port of Buenos Aires is located in the Rio de la Plata river on the riverside of the homonymous city. The fish community that inhabits the port water’s was studied in order to know the specific composition, relative abundance, spatial distribution and its relationships with the port activities. Ten sampling places were considered, seven inside the port and three in the access channels. The sampling was realised on August and September of 1998, using active and passive fishing gears. Diversity indices, Margalef' (Rl) and Shannon and Weaver (HO, were calculated. A cluster analysis was carried out with relative abundance of each taxa. In access channels, four species were captured and its relative abundance and diversity were similar for each stations. Contrarily inside the port twenty-seven species was registered, the relative abundance and specific composition were more fluctuate than out side. The heterogeneity observed in the distribution of the fish community would be linked to the design of the port and the activities that are developed in each place