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Dive into the research topics where Alejandro Tagliafico is active.

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Featured researches published by Alejandro Tagliafico.


Hydrobiologia | 2009

Low natural repopulation of marginal coral communities under the influence of upwelling

Sebastián Rodríguez; Adriana Alvizu; Alejandro Tagliafico; Carolina Bastidas

The study of coral repopulation in marginal communities may provide a useful analog for understanding the dynamics of coral reefs subjected to deleterious environmental changes. Repopulation of scleractinian reef corals may strongly impact the community structure on tropical reefs; however, the extent of this process on coral communities influenced by upwelling is unknown, especially in the Caribbean. In this study, the potential for natural repopulation of coral communities subjected to wind-driven upwelling was evaluated at three sites on the island of Cubagua, Venezuela. Coral spawning behavior was recorded and both larval settlement and juvenile abundance were estimated. Upwelling did not appear to affect coral spawning behavior, since at this locality spawning occurred at dates and times similar to those reported for well-developed reefs in the Caribbean. Also, juveniles produced by brooding corals were six times more abundant than those of broadcasting species, similar to patterns on other Caribbean reefs that are not under the influence of upwelling. By contrast, mean larval settlement (4xa0settlersxa0m−2) and juvenile abundance (0.1xa0juvenilesxa0m−2) in Cubagua were both lower than those elsewhere in the Caribbean and on Pacific reefs. Thus, the potential for repopulation of these marginal communities seems lower than for well-developed coral reefs in other regions. These results suggest that more fully developed coral reefs also may have reduced repopulation potential, as they become influenced by suboptimal environmental conditions.


Revista De Biologia Marina Y Oceanografia | 2013

Aspectos biológicos de las rayas Dasyatis guttata y Dasyatis americana (Myliobatiformes: Dasyatidae) capturadas por la pesquería artesanal de la Isla de Margarita, Venezuela

Alejandro Tagliafico; Néstor Rago; María Salomé Rangel

Dasyatis guttata and D. americana are target species of some artisanal fisheries in Venezuela. Because there are directed fisheries for their catches and the...


Revista De Biologia Tropical | 2010

Distribución y densidad de dos especies de holoturoideos en la isla de Cubagua, Venezuela

Alejandro Tagliafico; María Salomé Rangel; Néstor Rago


Revista De Biologia Tropical | 2013

Composición y estructura de la macrofauna asociada con agregaciones de dos especies de bivalvos en Isla de Cubagua, Venezuela

Iván Hernández-Ávila; Alejandro Tagliafico; Néstor Rago


Revista De Biologia Tropical | 2013

Pesquería y biología de Rhinobatos percellens (Rajiformes: Rhinobatidae) capturados por la pesquería artesanal de playa La Pared, Venezuela

Alejandro Tagliafico; Néstor Rago; María Salomé Rangel


Revista De Biologia Tropical | 2012

Distribución, densidad y estructura de talla de Oreaster reticulatus y Luidia senegalensis (Echinodermata: Asteroidea) en isla de Cubagua, Venezuela

Alejandro Tagliafico; María Salomé Rangel; Néstor Rago


Revista De Biologia Tropical | 2015

Biology of Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae) captured by the artisanal fishery of Margarita Island, Venezuela

Alejandro Tagliafico; Néstor Rago; Michelle Barany; Salomé Rangel


Scientia Marina | 2011

Composition of decapod crustacean assemblages in beds of Pinctada imbricata and Arca zebra (Mollusca: Bivalvia) in Cubagua Island, Venezuela: Effect of bed density

Iván Hernández-Ávila; Alejandro Tagliafico; Néstor Rago; Jesús Marcano


Boletín de Investigaciones Marinas y Costeras - INVEMAR | 2016

ESTIMACIÓN DE LOS PARÁMETROS DE CRECIMIENTO Y REPRODUCCIÓN DE LA SARDINA (SARDINELLA AURITA) DEL SURESTE DE LA ISLA DE MARGARITA, VENEZUELA

Alejandro Tagliafico; Leo Walter González; Nora Eslava


Ciencia | 2012

Estructura de talla de 20 especies de peces capturados por la flota artesanal de La Isla de Margarita, Venezuela

Alejandro Tagliafico; Néstor Rago; Asdrúbal Lárez; Salomé Rangel

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Nora Eslava

Universidad de Oriente

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Carolina Bastidas

Simón Bolívar University

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