Laura Prieto

Laura Prieto
Spanish National Research Council | CSIC · Departamento de Ecología y Gestión Costera

PhD in Marine Sciences

About

109
Publications
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1,726
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Publications

Publications (109)
Article
Full-text available
In 2010, the Mediterranean basin experienced Portuguese Man-of-War (Physalia physalis) swarms that had dramatic consequences, including the region’s first recorded human fatality attributed to a jellyfish sting. Despite the impact of jellyfish on coastal economic activity and the importance of the tourism industry for the Mediterranean region (acco...
Article
Full-text available
We present reports of sightings of living and stranded specimens of Rhizostoma luteum on the Atlantic coast of Morocco and along the south shore of the Iberian Peninsula in June-July 2012 and in January-February 2013. During summer 2012 and following the dominant currents, the jellyfish first appeared in the Gulf of Cadiz west of the Strait of Gibr...
Article
Full-text available
Bio-optical characteristics of phytoplankton and carbon assimilation were measured in the NW Atlantic Ocean near the continental shelf break South of New England (40 degrees N/70 degrees W) in August 2002. Discrete samples included: chlorophyll a (Chl a), phytoplankton absorption (a(ph)), the photosynthetic versus irradiance (P versus E) response u...
Article
Full-text available
The spatial and temporal distribution of physical, chemical and biological variables of the NE continental shelf of the Gulf of Cadiz were analyzed monthly during almost three annual cycles. This analysis was performed with the aim of deriving the main forcing factors controlling variability at inter-annual, seasonal and short-time scales. Meteorol...
Article
Full-text available
A number of causes have been proposed to account for the occurrence of gelatinous zooplankton (both jellyfish and ctenophore) blooms. Jellyfish species have a complex life history involving a benthic asexual phase (polyp) and a pelagic sexual phase (medusa). Strong environmental control of jellyfish life cycles is suspected, but not fully understoo...
Article
Full-text available
A search of records from different kinds of sources namely, scientific and grey literature, social media, and zoological museum collections, has been carried out to review the incidence of Physalia physalis (Linnaeus, 1758), the Portuguese man-of-war, in the Mediterranean Sea. The temporal frame of the records, considered valid if documented with i...
Article
Full-text available
The photosymbiosis with host-specific dinoflagellates is a widespread relationship in marine organisms. Despite the evidenced biodiversity of this kind of mutualism, most research focuses on the study of scleractinian corals, and there is a lack of knowledge about other symbiotic cnidarians such as jellyfishes. The Mediterranean jellyfish Cotylorhi...
Article
During recent years, the oceanic siphonophore Physalia physalis has repeatedly entered the Mediterranean Sea through the Strait of Gibraltar, being successively transported and distributed to different regions of that basin. When these floating colonies arrive to coastal areas during peak tourism periods there are large economic and health costs. T...
Chapter
The productive eastern boundary current (EBC) systems provide significant sources of global marine protein and have been subject to intense research over the last 50 years. Yet large jellyfish, which are present in all four major systems, have seldom been included in otherwise comprehensive reviews. This undoubtedly reflects their lack of intrinsic...
Article
Understanding processes occurring in the different life stages of jellyfish is key to advance knowledge on their trophic interactions and population dynamics. We describe four developmental stages of Pelagia noctiluca ephyrae and metaephyrae based on the progress of feeding structures and morphometric measurements on the central disc diameter and t...
Article
Understanding processes occurring in the di erent life stages of jellyfish is key to advance knowledge on their trophic interactions and population dynamics. We describe four developmental stages of Pelagia noctiluca ephyrae and metaephyrae based on the progress of feeding structures and morphometric measurements on the central disc diameter and to...
Article
The presence of invasive species in the Mediterranean Sea is much higher than in other European seas, and understanding the reasons behind the range expansion of this invasive species is important for minimising any possible impacts to the already highly pressurised Mediterranean marine ecosystem. In this work, a brief description of sightings of t...
Book
Full-text available
Summary: https://marine.copernicus.eu/news/ocean-state-report-5-summary-now-available Full report: https://www.tandfonline.com/doi/full/10.1080/1755876X.2021.1946240
Article
Full-text available
Bluefin tunas across the world migrate long distances to spawn in particularly warm and oligotrophic areas constrained by oceanographic fronts. The low abundance of predators in these areas increases survival chances of their early life stages, but its importance for choice of spawning habitat is unknown. Here, we use estimated clearance rates and...
Article
Full-text available
Ocean acidification and warming are challenging marine organisms and ecosystems around the world. The synergetic effects of these two climate change stressors on jellyfish remain still understudied. Here, we examine the independent and combined effects of these two environmental variables on polyp population dynamics of the Mediterranean jellyfish...
Preprint
The hydrozoan Portuguese man-of-war (Physalia physalis) is distributed throughout the Havana littoral zone, which is one of the circulation points of the currents that form the North Atlantic Subtropical Gyre run. For the first time, a study was conducted monthly from May 2018 through May 2019 to better understand the temporal and spatial variation...
Article
The hydrozoan Portuguese man-of-war (Physalia physalis) is distributed throughout the Havana littoral zone, which is one of the circulation points of the currents that form the North Atlantic Subtropical Gyre run. For the first time, a study was conducted monthly from May 2018 through May 2019 to better understand the temporal and spatial variation...
Research
Full-text available
This topic intends to cover a wide range of interesting subjects related to the diversity and adaptation of phytoplankton communities across time and environments, by including original research papers, perspectives, and reviews. This topic welcomes content related to understanding phytoplankton’s strategies, associations and interactions between d...
Article
The Australian white-spotted jellyfish, Phyllorhiza punctata had not been previously recorded in the Northeast Atlantic Ocean. Here, we present the first record of this species in the southwestern Atlantic coast of Spain, Cadiz. Particularly, ten specimens including juveniles and adults were collected in August and October 2018 during five field su...
Article
Full-text available
Pelagia noctiluca is the most successful and well-studied jellyfish in the Mediterranean Sea. They tolerate a wide range of water temperatures and succeed in low to medium food regimes, but factors driving its distribution and population dynamics remain poorly understood. Here we applied a multiscale analytical approach using survey data and from a...
Article
Full-text available
Tintoré et al. Sustained Mediterranean Observing Forecasting System The Mediterranean community represented in this paper is the result of more than 30 years of EU and nationally funded coordination, which has led to key contributions in science concepts and operational initiatives. Together with the establishment of operational services, the commu...
Article
Two beaching events of the calycophoran siphonophore Abylopsis tetragona (Otto, 1823) were observed in two different areas of the Strait of Gibraltar during the cold season. The first was discovered on November 2014, on Getares Beach (Algeciras Bay, Mediterranean part of the Strait of Gibraltar), where more than 700 colonies were found deposited al...
Article
Full-text available
Jellyfish is a compartment in the marine food web that often achieves high increases of biomass and that it is starting to be explored for several human potential uses. In this paper, a recently rediscovered large jellyfish, Rhizostoma luteum, is studied for the first time to describe its organic compounds for the isolation and production of bioact...
Data
Table 1 List of parameters used to identify target species.
Article
Full-text available
Jellyfish blooms are a significant environmental problem that is increasing and may be influenced by anthropocentric practices such as overfishing, pollution, eutrophication, translocation, climate change, and ocean acidification. Many jellyfish have unknown life cycles leading to these blooms. We describe for the first time, the life cycle of scyp...
Data
Linear regression between time (days) and morphometric measures of Rhizostoma luteum ephyra. TBD total body diameter, CDD central disc diameter, TMLL total marginal lappet length, ML manubrium length. (PDF)
Data
Rhizostoma luteum scyphistoma, podocyst and ephyra count. Variable list: Initial (before temperature drop), Time (Weeks 8, 11 and 16). (PDF)
Data
Morphometric measures of Rhizostoma luteum ephyra. TBD total body diameter, CDD central disc diameter, TMLL total marginal lappet length, ML manubrium length. (PDF)
Data
Settlement preferences of Rhizostoma luteum planulae. BOTT bottom of the glass flasks: GS glass slides; LAT sides of glass flasks. (PDF)
Data
Morphological measures of young medusa Rhizostoma luteum. TOAL total oral arm length, UOAL unfrilled oral arms length, FOAL frilled oral arms length. (PDF)
Article
Full-text available
Larval dispersal mechanisms, although significantly studied, are far from being completely resolved. Local studies are needed to clarify key interactions between individual life cycles and transport processes. The Atlantic-Mediterranean connection through the Strait of Gibraltar is a particularly important area to explore these processes, as a hots...
Article
Full-text available
Diatoms constitute a widespread group of phytoplanktonic species that thrive in coastal waters and produce episodical blooms. During these blooms, these diatoms release several organic compounds into the environment. Two types of organic molecules released by diatoms are the polyunsaturated aldehydes (PUA) and exopolymeric substances (EPS). EPS can...
Article
Rhizostoma luteum was first described in 1827 by Quoy and Gaimard under the name Orythia lutea, based on nine specimens collected from the Strait of Gibraltar (southern Iberian Peninsula). After 60 years of no scientific records existing for this species, in 2013, a phylogenetic analysis confirmed that R. luteum differed from Rhizostoma pulmo and R...
Article
The large scyphozoan jellyfish Drymonema dalmatinum was first described by Haeckel (1880) from material collected off the Dalmatian coast of the Adriatic Sea (eastern Mediterranean).We report the sighting of single specimen observed on April 30, 2013, at the dive location known as Marina del Este, La Herradura, southern Spain (36.720278°N, 3.728333...
Conference Paper
The main aims of this study were to investigate the environmental parameters associated with blooming events of Carybdea marsupialis and to genetically compare the box jellyfish in Malta to other Mediterranean and Atlantic samples. The numbers of adult individuals, as well as abiotic and biotic factors were monitored in situ and analysed statistica...
Poster
Full-text available
Of all the gelatinous organisms species that usually appear on the Northern Alboran coast (Western Mediterranean), the most common and the one, which has the greatest negative impact on the ecosystem and on human coastal activities is the scyphozoa Pelagia noctiluca. This jellyfish has substantial socioeconomic consequences, causing major concern f...
Conference Paper
Rhizostoma luteum is a scyphomedusea that was first described in 1827 by Quoy & Gaimard under the name Orythia lutea based on nine specimens collected from the Strait of Gibraltar (Southern Iberian Peninsula). After 60 years of no scientific records of this species, in 2013 a phylogenetic analysis ratified that R. luteum differed from Rhizostoma oc...
Poster
Full-text available
Aurelia spp. are cosmopolitan scyphozoan species and probably the most studied jellyfish in the world. They inhabit nearshore waters, especially closed basins, such as coastal embayments, fjords and estuaries, occupying a great variety of habitats worldwide. Recent studies have addressed the biogeography of the genus Aurelia and reported that it co...
Technical Report
Full-text available
Jellyfish swarms in the Southern European Seas (SES: Mediterranean and Black Seas) are a recurrent phenomenon which is attracting a groundswell of scientific and societal interest, with potential repercussions for public health, recreation, tourism, fisheries, aquaculture and marine ecosystem health. But this phenomenon also occurs in other areas o...
Poster
The increasing pressure from anthropogenic disturbances that are currently disrupting the natural balance of the Mediterranean marine ecosystems may lead to more frequent and more pronounced jellyfish outbreaks/blooms. High jellyfish abundances that occur in the Mediterranean Sea have negative consequences for human welfare. It is therefore, necess...
Conference Paper
Full-text available
The connectivity between the Gulf of Cadiz (northeastern Atlantic) and the Mediterranean Sea has been regarded as an interesting oceanographic and ecological issue, especially considering the missing knowledge on the processes at play in the Strait of Gibraltar. Moreover, the spatial and vertical dispersal of organisms in this highly dynamic system...
Article
The microbiota associated to the gastric cavity of four exemplars of the jellyfish Cotylorhiza tuberculata has been studied by means of cultured-dependent and -independent methods. The pyrosequencing approach rendered a very reduced diversity of Bacteria with four major groups shared by the four exemplars that made up to 95% of the total diversity....
Conference Paper
Full-text available
Two mass stranding events of the calicophoran siphonophore Abylopsis tetragona (Otto, 1823) were detected in two different areas of the Strait of Gibraltar during the cold season. This case is a good example of citizen science and jellyfish scientific knowledge outreach in schools, thanks to that we received the warning of the event and collaborate...
Article
Full-text available
PERSEUS project aims to identify the most relevant pressures exerted on the ecosystems of the Southern European Seas (SES), highlighting knowledge and data gaps that endanger the achievement of SES Good Environmental Status (GES) as mandated by the Marine Strategy Framework Directive (MSFD). A complementary approach has been adopted, by a meta-anal...
Presentation
Diatoms constitute a representative and widespread group of phytoplanktonic species whose ecological success still constitute a matter of discussion. Modern hypothesis concerning this success include the possibility of a chemical defense system which affects predators and competitors. One type of organic molecules released by diatoms and proposed a...
Article
Full-text available
The southern Iberia regional seas comprise the Gulf of Cadiz and the Alboran Sea sub-basins connected by the narrow Strait of Gibraltar. Both basins are very different in their hydrological and biological characteristics but are, also, tightly connected to each other. Integrative studies of the whole regional oceanic system are scarce and difficult...
Article
This study examines the spatio-temporal variability of the turbidity plume and phytoplankton biomass (in terms of chlorophyll) in the marine region influenced by the Guadalquivir estuary using ocean colour images over a period of 11 years (2003-2013). The area of the turbidity plume was calculated using water-leaving radiance at 555 nm (nLw555). Cl...
Poster
Full-text available
Identification and distribution of the major mesozooplanktonic species in the estuarine part of the Guadalquivir estuary (southern Iberian Peninsula). Relationship with the environmental variables and ecological characterization of the mesozooplanktonic community.
Article
This study examines the spatio-temporal variability of the turbidity plume and phytoplankton biomass (in terms of chlorophyll) in the marine region influenced by the Guadalquivir estuary using ocean colour images over a period of 11 years (20032013). The area of the turbidity plume was calculated using water-leaving radiance at 555 nm (nLw555). Cli...
Poster
Full-text available
The massive outburst of jelly organisms on the Spanish coast is a phenomenon with relevant implications at the socio-economic level. The aim of this study is to combine the abundance variability of these organisms with the physical and oceanographic forcing. The interannual variations of gelatinous plankton by different sources of data at regional...
Preprint
La proliferación masiva de organismos gelatinosos es un fenómeno relevante tanto en el campo científico como en el socio-económico. El objetivo de este Trabajo Fin de Máster es combinar la variabilidad temporal de abundancia de organismos gelatinosos y su conexión con forzamientos meteorológicos y oceanográficos. Se analiza la variabilidad interanu...
Article
Estuaries are transition ecosystems connecting land and sea subjected to a large number of external forcings that make estuaries complex and highly variable. Models developed to simulate estuaries use to be also complex and, henceforth, difficult to constrain and parameterize. Here, we propose a simple biogeochemical model of the water column of te...
Conference Paper
The hydrodynamics and biogeochemical conditions of the Gulf of Cadiz (SW Iberian peninsula) is strongly influenced by the input of fresh, warm and nutrient-rich water from the main estuary in the region, the Guadalquivir River. This sea-river interaction favors the generation of surface retention structures that encompasses highly productive waters...
Article
Inter-annual variability of calculated barotropic (netflow) and simulated baroclinic (inflow and outflow) exchanges through the Strait of Gibraltar is analyzed and their response to the main modes of atmospheric variability is investigated. Time series of the outflow obtained by high resolution simulations and estimated from in-situ Acoustic Dopple...
Article
Full-text available
The temporal variability of hydrological variables in the Guadalquivir estuary was examined during three years through a real-time remote monitoring network (RTRM). The network was developed with the aim of studying the influence of hydrodynamical and hydrological features within the estuary on the functioning of the pelagic ecosystem. Completing t...