A5078993478- Ichthyology and Marine Biology
- Marine and fisheries research
- Fish biology, ecology, and behavior
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Coral and Marine Ecosystems Studies
- Marine Ecology and Invasive Species
- Diatoms and Algae Research
- Environmental DNA in Biodiversity Studies
- Plant and soil sciences
- Marine Bivalve and Aquaculture Studies
- Soil Management and Crop Yield
- Identification and Quantification in Food
- Soil Science and Environmental Management
- Marine animal studies overview
- Avian ecology and behavior
- Environmental and Cultural Studies in Latin America and Beyond
- Water Resource Management and Quality
- Amphibian and Reptile Biology
- Botany and Geology in Latin America and Caribbean
- Coastal Management and Development
- Aquatic Ecosystems and Phytoplankton Dynamics
- Indigenous Cultures and History
- Cephalopods and Marine Biology
- Soil Mechanics and Vehicle Dynamics
École Pratique des Hautes Études
2024
Centre d'Écologie Fonctionnelle et Évolutive
2024
Université de Montpellier
2024
Centre National de la Recherche Scientifique
2024
Institut de Recherche pour le Développement
2024
Université Paris Sciences et Lettres
2024
Universidad Nacional de La Plata
2012-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2007-2023
Centro Científico Tecnológico - San Juan
2018-2022
Centro Científico Tecnológico - Tucumán
2012
Knowledge of the three-dimensional movement patterns elasmobranchs is vital to understand their ecological roles and exposure anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses knowledge gap vertical movements by compiling first synthesis habitat use from data obtained deployment 989 biotelemetry tags 38 elasmobranch species. Elasmobranchs displayed high intra- interspecific variability in...
Summary The diet of seven fish species from the Rio de la Plata was studied to evaluate their behaviour as predators on invasive bivalves Corbicula fluminea and Limnoperna fortunei. It concluded that teleosts Pterodoras granulosus, Pimelodus maculatus, Paraloricaria vetula Ricola macrops prey upon C. fluminea, whilst Leporinus obtusidens, Rhinodoras dorbignyi Brochiloricaria chauliodon feed Lim. These had altered diets consume large amounts these molluscs. Three fishes recorded here were...
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This study provides the first detailed information on reproductive biology of lesser guitarfish Zapteryx brevirostris in south-western Atlantic Ocean between latitudes 34° and 42° S. A total 320 males (196-647 mm length, L(T)) 336 females (200-640 were analysed. No significant differences observed size at 50% maturity (499 (506 L(T)). Three seasonal patterns related to testes mass, development spermatocysts presence spermatozoa genital ducts. Females showed a 3 year cycle, with 2 years...
El Pescado (literally ‘the fish’) is a lowland stream in the pampean plain, entering Rio de La Plata at 35˚55¢S,57˚45¢W, 70 km SW of city Buenos Aires. The develops as potamon with variable flood frequency along its 36 length. water slightly soft, relatively high conductivity and dominance HCO–3 , Na + Cl – ions. Three fish families, Characidae (29%), Pimelodidae (14.6%) Loricariidae (12.8%) are most abundant among 55 species. Differences species composition four stations different...
This study provides information on the reproduction of spotback skate Atlantoraja castelnaui. A total 232 individuals (119 females and 113 males) were obtained from surveys carried out between 2003 2006, south‐west Atlantic Ocean, 34 42° S <50 m deep; another 514 specimens (241 273 2005 2007 commercial fishery operations in same area landings port Mar del Plata, Argentina. Males ranged 185 to 1250 mm length ( L T ) 243 1368 . Length at maturity was estimated be 980 for males 1089 females....
AbstractThe effects of different environmental variables on the fish community structure were evaluated in a small temperate estuary. The biological and data collected bimonthly between 2007 2009 along main estuarine axis. Multivariate analyses applied (CLUSTER, SIMPER, CCA) to determine spatial estimate influence it. A total 48 species "teleost" fishes observed, with families Characidae Sciaenidae presenting largest number species, 90% catches being juveniles. was overwhelmingly dominated...
We provide the first list of ichthyofauna from Ajó river, a water course situated at southward border Samborombón bay (36°20'12"’ S, 56°54'17" W), RAMSAR site in Argentina. These results were obtained bi-monthly along two years. Forty-five species belonging to 26 families and 11 orders identified. This fish fauna is composed by freshwater, euryhaline marine species. Richest groups Perciformes Characiformes, with 10 each. A single species, Micropogonias furnieri (whitemouth croaker),...
The Nile tilapia (Oreochromis niloticus) is a species widely cultivated worldwide. In recent decades it was an increasing development of fish farming this and the red variety in Argentina Uruguay. From January to March 2010, four specimens O. niloticus were captured south boundary Samborombón Bay (S 36° 17´- W 56° 46´), which external sector Río de la Plata. Probably collected released accidentally from hatcheries placed on banks aquatic environments communication with Bay. patterns...
We report the southernmost known occurrence in Atlantic Ocean of striped smooth-hound, Mustelus fasciatus (Garman, 1913). The shark, a female measuring 106 cm TL, was fished warm coastal waters, with salinity 33,189 PSU, central Argentina (40°52ʹ13ʺ S, 062°18ʹ42ʺ W). This increases by 205 km southward range this endemic and Critically Endangered species.
Tope sharks (Galeorhinus galeus) aggregate in large numbers during spring and summer closed gulfs bays northern Patagonia; these locations are considered the main nursery areas for species. However, little is known about spatial ecology or diel behaviour of this critically endangered The aim was to evaluate short-term diving habitat preferences tope using electronic tagging. Five female sharks, four adult one sub-adult, were tagged with pop-up satellite archival tags Natural Reserve Bahía...
We established the presence of Eucinostomus at Río de la Plata Estuary (36°17′74′′S–56°46′68′′W). The report is based on specimen 191.6 mm. total length, captured in shallow, warm and brackish water with sandy bottom. This southernmost record for Southwest Atlantic Ocean, appears related an event low discharge Plata.
Discopyge castelloi sp. nov. (Torpediniformes, Narcinidae), a new species of electric ray from the Argentine Sea. A family Narcinidae, castelloi, is described southwestern Atlantic off Argentina. Distinctive characters are form body, posterior position pelvic fins and manner as join caudal peduncle, morphology nasal curtain presence small but apparently functional eyes. fourth torpediniform reported area. It appears to be very rare on shelf, though type locality separated that paratypes by...
Pimelodella laticeps Eigenmann, 1917 is the most abundant siluriform in El Pescado Stream, located depressed region known as pampean (Buenos Aires, Argentina). To characterize its feeding habits this environment, we analyzed dietary contents on seasonal samplings from May 1991 through August 1993. evaluate relative contribution of different components, index importance (IRI) was used. preferred sectors with aquatic macrophytes, and predated mainly organisms periphytic benthic communities....
The trophic relationship between Torrent Catfish (Hatcheria macraei) and Rainbow Trout (Oncorhynchus mykiss) was studied in a lotic Andean system of Argentina to examine whether these fish compete for the same food resources. Fishes were sampled seasonally, autumn, spring, summer. Hatcheria macraei O. mykiss presented carnivorous generalist feeding strategy. diet dominated by aquatic macroinvertebrates, terrestrial invertebrates an important component Large-sized fed on Catfish, which turn...
1. Early detection is a crucial tool for identifying and managing the spread of invasive species. 2. In this study, we validated probe-based quantitative polymerase chain reaction (qPCR) assay Blue Crab, Callinectes sapidus, in Mediterranean Sea, using 22 initial eDNA environmental samples (eDNA) collected from three coastal lagoons. 3. A subsequent large-scale sampling campaign (61 31 sites), conducted collaboration with local stakeholders, was carried out to map distribution sapidus along...