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May 2002 - May 2011
June 2011 - present
June 2007 - May 2011
Publications
Publications (43)
El auge de la ciencia ciudadana en las últimas décadas demuestra su doble utilidad, útil a la ciencia y útil a la ciudadanía. Bioblitz es una actividad voluntaria de ciencia ciudadana que reúne a expertos y público en general para realizar un inventario biológico en un área urbana. El primer Bioblitz se organizó en Washington el 1996, y ya son dece...
We studied the horizontal and vertical distributions of marine cladocerans across the Catalan Sea shelf (NW Mediterranean) in July and September 2003, and in June and July 2004. At the seasonal scale, Penilia avirostris appears first in June in the southern region, where temperatures are warmer, and its populations develop northward during the summ...
The project BioBlitz Barcelona is held once a year. From 2010 up to now the BioBlitz BCN has assembled experts and citizens in order to survey the biodiversity in several areas of the city of Barcelona, mainly in urban parks. At the beginning the Natural History Museum of Barcelona and the University of Barcelona have coordinated the tasks. At the...
Massive occurrences of jellyfish can cause direct impacts on the economy, especially on tourism and commercial fisheries. Translocation of jellyfish species by humans has caused damaging blooms in new habitats. Aurelia aurita s.l. has been introduced in many locations around the world. To test the potential success of Au. aurita s.l. in various hab...
Jellyfish (Cnidaria, Scyphozoa) blooms appear to be increasing in both intensity and frequency in many coastal areas worldwide, due to multiple hypothesized anthropogenic stressors. Here, we propose that the proliferation of artificial structures — associated with (1) the exponential growth in shipping, aquaculture, and other coastal industries, an...
In recent decades, many areas worldwide have experienced mass occurrences of jellyfish. To determine how temperature may affect jellyfish populations in the northwest (NW) Mediterranean Sea, we maintained polyps of three scyphozoan species, Aurelia aurita, Rhizostoma pulmo, and Cotylorhiza tuberculata in the laboratory at three temperatures (14, 21...
21 Introducció Les relacions interespecífiques en els sis-temes marins estan regides per les relacions depredador-presa i per la competència per l'espai. Les defenses enfront de la depredació són molt variades: des de les pròpiament estruc-turals, mimètiques, de comportament gru-pal, moviment, etc., però molt especialment de caràcter químic (defens...
In recent decades, many areas worldwide have experienced mass occurrences of jellyfish. To determine how temperature may affect jellyfish populations in the northwest (NW) Mediterranean Sea, we maintained polyps of three scyphozoan species, Aurelia aurita, Rhizostoma pulmo, and Cotylorhiza tuberculata in the laboratory at three temperatures (14, 21...
In recent decades, many areas worldwide have experienced mass occurrences of jellyfish. To determine how temperature may affect jellyfish populations in the northwest (NW) Mediterranean Sea, we maintained polyps of three scyphozoan species, Aurelia aurita, Rhizostoma pulmo, and Cotylorhiza tuberculata in the laboratory at three temperatures (14, 21...
Jellyfish (Cnidaria, Scyphozoa) blooms appear to be increasing in both intensity and frequency in many
coastal areas worldwide, due to multiple hypothesized anthropogenic stressors. Here, we propose that the
proliferation of artificial structures – associated with (1) the exponential growth in shipping, aquaculture,
and other coastal industries, an...
Rhizostoma pulmo is one of the most abundant scyphomedusae along the Mediterranean coasts. To understand changes in the population densities
of the medusa stage and its relationship with the benthic stage, we describe all developmental stages from the life cycle
of R. pulmo, from the scyphistoma stage to young medusae reared in the laboratory. Matu...
An unusual bloom of the cubozoan Carybdea marsupialis occurred at some beaches located near Denia (south-western Mediterranean Sea, south-eastern Spain) during the summer of 2008. The bloom was first detected and recorded by the local Red Cross first aid services. Densities of C. marsupialis in the area were characterized by quantitative sampling....
eds.) Reservats tots els drets. El contingut d'aquesta obra està protegit per la Llei, que estableix penes de presó i/o multes, a més de les corresponents indemnitzacions per danys i perjudicis per a aquells que reproduïssin, plagiessin, distribuïssin o comuniquessin públicament, en la seva totalitat o en part, una obra literària, artística o cient...
Population density and feeding habits of Oreaster reticulatus (Linnaeus, 1758) (Echinodermata, Asteroidea) living in seagrass beds off Venezuela We determined the density and size ranges of individuals of the asteroid Oreaster reticulatus (Linnaeus, 1758) from three populations off the Venezuelan coast. Individuals were collected by hand, visually...
One of the main objectives of research on jellyfish is to determine their effects on the food web. They are voracious consumers
that have similar diets to those of zooplanktivorous fish, as well as eating microplankton and ichthyoplankton. Respiration
rates (RRs) can be used to estimate the amount of food needed to balance metabolism, and thereby e...
Blooms of the invasive ctenophore, Mnemiopsisleidyi, occurred in 2009 along the Mediterranean Sea coasts of Spain and Israel. This voracious zooplanktivore spread throughout
the Black Sea basin after its introduction in the early 1980s, throughout northern European coastal waters, and now occurs
throughout the Mediterranean Sea. M.leidyi occurred t...
Pelagic cnidarians are important consumers of zooplankton and ichthyoplankton in the world’s oceans, and thus harm fisheries
as competitors and predators of fish. This study examined the inshore-offshore distribution of pelagic cnidarians and the
trophic ecology of Pelagia noctiluca ephyrae (<12mm diameter) and larger medusae in late spring 1995 in...
L as analogías permiten comparar fenómenos en aparien-cia tan distintos como los que suceden en el medio terres-tre y el marino. Suele decirse que si no sentimos la necesidad de conservar los océanos es, en parte, porque no los conoce-mos. Si bien resulta difícil comprender un ambiente en el que no podemos vivir o habitar, sí podemos, mediante anal...
Els últims anys, la presència d'eixams de meduses a les costes mediterrànies s'ha convertit en un fet ben conegut pels banyistes a l'estiu i molt comen-tat pels mitjans de comunicació. Però, lluny de ser un fenomen exclusivament estival, les prolifera-cions es produeixen durant tot l'any, i, fi ns i tot, alguns episodis d'hivern han estat més massi...
peratura molt similar a les aigües costaneres. En canvi, això és molt més difícil que passi quan l'ai-gua costanera té una temperatura, i per tant també una densitat, diferent de la de mar oberta. Així, els factors climàtics que determinen que l'aigua costanera sigui més càlida al principi de la primavera són una causa indirecta, però important, de...
Una medusa invasora Els estius del 2008 i el 2009 es va produir una pro-liferació sobtada de la cubomedusa Carybdea mar-supialis en algunes platges de la costa d'Alacant, especialment a la zona de Dénia. Les meduses petites (d'1 a 3 cm) van produir picades a més de 2.500 persones que es banyaven a les platges als mesos d'estiu. Alguns dies es van r...
The comb jelly Mnemiopsis leidyi was first reported in July 2009 along the Spanish coast of the NW Mediterranean Sea and occurred throughout the summer (last report 26 September 2009). Large numbers of the ctenophore were reported by many participants of the "Medusa Project". The high concentrations of M. leidyi along the Spanish coast, together wi...
Mesozooplankton and 63–200 μm net-collected microzooplankton grazing on phytoplankton and protozoans was evaluated by 24-h incubations on a latitudinal transect in the Atlantic Ocean, from 35°N to 38°S (AMT-15; September–October 2004). The sampling area comprised contrasting ecosystems, including upwelling zones and oligotrophic subtropical gyres....
Penilia avirostris is a cosmopolitan marine cladoceran that inhabits coastal and shelf waters of most low and mid latitude ecosystems. In this study, we describe the life history and population dynamics of P. avirostris at a fixed coastal station in the NW Mediterranean Sea. This marine cladoceran was very seasonal, having population maxima in summ...
Zooplankton are key components of the structure and functioning of marine planktonic food webs. They are the main link of planktonic primary production towards top pelagic consumer levels (fish), and play a relevant role on the nutrient recycling in the water column and on the export of particulate matter out of the photic zone. In this paper, we r...
Marine cladocerans are important contributors to the zooplankton community of tropical and temperate coastal ecosystems during
the warmer months, when they show explosive population growth. Despite this fact, little information is available on their
ecology compared with the extensive studies on their freshwater relatives. The main objective of thi...
In this work we studied the trophic ecology and feeding impact of the cladoceran Penilia avirostris and the cyclopoid copepod Oithona nana, the two dominant zooplankters in the summer communities of the coastal NW Mediterranean, on the naturally occurring microbial communities. In order to ascertain carbon surplus for growth and reproduction and th...
Penilia avirostris is an important component of the mesozooplankton of shelf waters during the stratification period. This study investigates the feeding ecology of P. avirostris under natural dietary conditions in the NW Mediterranean during their summer appearance. The results indicate that P. avirostris feeds on particles in a wide size range, m...
Abstract We measured ingestion rates of Calanoides
acutus on different microbial components of the Gerlache
Strait (GE) and Bellingshausen Sea (BE) waters
during December 2002. At the time of the study the
abundance of both zooplankton (42–133 ind m�3) and
phytoplankton (0.76–1.5 lg chlorophyll a l�1) were low,
indicating that the spring phytoplank...
The phytoplankton [chlorophyll a (Chl a)], microzooplankton, mesozooplankton and macrozooplankton biomass and distribution were studied as part of a multidisciplinary
project (Tempano) along the Antarctic Peninsula during December 2002. Even though the summer phytoplankton bloom was not yet
developed in the area, autotrophs dominated the plankton b...
A new species of amphipod Crustacea (Gammaridea, Amphilochidae) of the genus Amphilochus Bate, 1862, is described. The species was collected in Phallusia nigra (Savigny, 1816) at depths between 0 and 2 m, in the pier piles of the Marina El Ancla and Los Manglares gas station in Morrocoy National Park (Falcón State, Venezuela), during the months of...
We determined the density and size ranges of individuals of the asteroid Oreaster reticulatus (Linnaeus, 1758) from three populations off the Venezuelan coast. Individuals were collected by hand, visually inspecting 100 m2 quadrates in the localities of Cano León (N = 10), Las Luisas (N = 24), and Mochima (N = 5). In the field, each individual was...
