A5026099149- Avian ecology and behavior
- Marine and fisheries research
- Marine animal studies overview
- Wildlife-Road Interactions and Conservation
- Isotope Analysis in Ecology
- Fish Ecology and Management Studies
- Microplastics and Plastic Pollution
- Wildlife Ecology and Conservation
- Marine and coastal plant biology
- Cephalopods and Marine Biology
- Marine Bivalve and Aquaculture Studies
- Environmental and Ecological Studies
- Effects and risks of endocrine disrupting chemicals
- Toxic Organic Pollutants Impact
- Wildlife Conservation and Criminology Analyses
- Marine Biology and Environmental Chemistry
- Rangeland and Wildlife Management
- Agricultural and Food Production Studies
- Fish Biology and Ecology Studies
- Water Resource Management and Quality
- Animal Behavior and Reproduction
- Coral and Marine Ecosystems Studies
Wildlife Conservation Society Argentina
2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2025
Centro Científico Tecnológico Patagónico
2013-2024
National University of Patagonia San Juan Bosco
2011-2023
National University of Mar del Plata
2019
Las aves marinas son uno de los grupos más amenazados a nivel global. Sin embargo, varias actividades humanas también proveen recursos que estas pueden utilizar en su beneficio. Se presenta una síntesis del conocimiento sobre el uso antrópicos por parte las se reproducen litoral patagónico argentino. investigaciones realizadas indican un total quince especies utilizan para alimentación y/o nidificación durante meses la temporada reproductiva. De diferentes alimento origen antrópico...
the high-sea ice trawlers of San Jorge Gulf, Chubut, Argentina
We evaluated seabird attendance and incidental mortality at coastal trawl vessels targeting Argentine red shrimp (Pleoticus muelleri) in the Isla Escondida fishing area, Argentina, during 2006–2007 2007–2008. Eight species attended vessels, most frequent abundant (percent occurrence, mean number per haul) two seasons was Kelp Gull (Larus dominicanus) (100%, 112.3 100%, 263.4, respectively), followed by Black-browed Albatross (Thalassarche melanophris) (85%, 17.6, 90%, 32.4, respectively)....
Abstract Seabird bycatch in fisheries, and the development of effective mitigation to minimize this, have been subject increasing research attention over past three four decades. Trawl fisheries represent a particular challenge, as bird mortalities (especially highly threatened albatrosses large petrels, Procellariforms) occur primarily through difficult-to-detect collisions with warp net monitoring cables. Effectiveness bird-scaring lines (BSLs) measure can be fleet-specific, studies...
We assessed the potential overlap in diet composition of kelp gull Larus dominicanus and threatened Olrog's L. atlanticus breeding syntopically at Bahía San Blas, Argentina, during two seasons (2006 2007). Diet was studied using regurgitated pellets (180 per species year) chick stomach samples obtained through water offloading technique (60 only Kelp gulls fed on least 18 prey types. Fish most important component (73.3–85%, depending stage year), mainly stripped weakfish Cynoscion guatucupa...
Kelp Gull (Larus dominicanus) foraging patterns were studied by deploying GPS loggers on 20 incubating individuals at their colony in the Bahía San Blas protected area, Argentina. Mean number of trips per day was 1.5 ± 0.5, and mean trip duration 272.6 165.2 min. maximum distance from 19.6 24.4 km. Incubating Gulls visited natural anthropogenic environments. Individuals switched between two or three different habitat types 47% time during a given trip. showed differential use feeding areas,...
Abstract We assessed Kelp Gull ( Larus dominicanus ) diet composition complementing conventional and stable isotope methods to determine the relevance of food derived from recreational fisheries. To achieve this goal, we quantified breeding at Bahía San Blas protected area, Argentina, between 2012 2014, assessing differences among four colonies, stages years. Diet analyses were based on pellets n = 1054), chick stomach content samples 351) analysis adult whole blood 20 40, respectively)....
The knowledge of seabird breeding distribution and abundance is important for their management conservation. We present information on the gulls terns gathered between 2006–2013 at Reserva Natural de Usos Múltiples Bahía San Blas, Buenos Aires Province. recorded nesting eight species, in most cases mixedspecies colonies. During 2013, we counted 3635 nests Kelp Gull (Larus dominicanus) distributed 4 colonies, 359 Olrog’s atlanticus) 2 6 Brown-hooded maculipennis), 841 Royal Tern (Thalasseus...
El desarrollo urbano e industrial puede tener un impacto negativo sobre las poblaciones de aves marinas, aunque muchas veces pueden aprovechar estructuras artificiales que podrían proporcionarles condiciones más estables para la reproducción y/o con una menor presión depredación. Este trabajo actualiza distribución colonias marinas en costa central del Golfo San Jorge, sector modificado desde hace décadas por actividades humanas, y el estado reproductivas puerto Comodoro Rivadavia, Chubut....
Resumen ∙ El consumo del descarte pesquero en el mar es actualmente un importante componente la ecología alimentaria de muchas especies gaviotas. Los estudios dieta son clave para evaluar contribución relativa su trófica, así como empezar a comprender los potenciales efectos actividad pesquera sobre sus parámetros reproductivos y dinámica poblacional. presente estudio analiza composición dietaria Gaviotas Cocineras (Larus dominicanus) que reproducen costa norte Golfo San Jorge, Chubut,...
Seabirds often have wide distribution ranges and may travel relatively long distances to breeding grounds, crossing jurisdictional boundaries. When engaged in foraging behaviour, seabirds are prone interact with different fisheries suffer incidental mortality. We assessed the spatial use of Magellanic penguins Spheniscus magellanicus at 3 colonies within Patagonia Austral Marine Park (San Jorge Gulf, Argentina) relation jurisdictions. also quantified their overlap trawl bycatch (incidental...
Several studies have applied induced regurgitations to characterize the diet of cormorants, but none presented quantitative information indicating complete stomach contents were obtained. Our goal was test value for assessment and monitoring Imperial Cormorant (Phalacrocorax atriceps) diet. Stomach samples obtained from male female breeding adults bringing food back colony during chick rearing stage (n = 22) at Isla Arce, Argentina. Samples through regurgitation, immediately afterward each...
We assessed differences in diet composition between Imperial Cormorants (Phalacrocorax atriceps) breeding at Isla Arce and Vernaci Este, Golfo San Jorge, Argentina. Both colonies are located within the Patagonia Austral marine park, commercial trawl fisheries operate adjacent waters, thus knowledge of their food requirement is fundamental to assess potential conflicts monitor interactions. obtained stomach samples from 63 adult during chick-rearing period 2014: 32 31 Este. recorded 27 30...
In the present work, regression equations were generated to estimate wet weight from total length, and length skull pectoral girdle bones of Odontesthes nigricans. All regressions statistically significant. No significant differences found in weight-total relationship between males females, showing a positive allometric growth length. The obtained are tool for research trophic ecology, allowing broader evaluation role lagoon silverside diet piscivorous predators.
Many closely related seabirds nest in mixed colonies, and this association may result interspecific interactions such as competition for common resources kleptoparasitism. Trophic were evaluated between the Kelp Gull (Larus dominicanus Lichtenstein, 1823) Royal Cayenne terns (Thalasseus maximus (Boddaert, 1783) Thalasseus sandvicensis eurygnathus (Saunders, 1876), respectively) nesting at a mixed-species colony an area with high availability of recreational fishery waste opportunistic Gull....