Jesus Souza Troncoso

Jesus Souza Troncoso
University of Vigo | UVIGO · Department of Ecology and Animal Biology

Professor, Dr.

About

330
Publications
73,528
Reads
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2,323
Citations
Additional affiliations
January 1995 - present
University of Vigo
January 1995 - present
University of Vigo
Position
  • Professor (Full)
October 1991 - January 1995
University of Santiago de Compostela
Position
  • Professor (Assistant)
Education
September 1985 - July 1990
University of Santiago de Compostela
Field of study
  • Marine Molluscs

Publications

Publications (330)
Article
Full-text available
Shellfish aquaculture needs the development of new tools for the improvement of good practices avoiding the reliance on natural spat collection to increase production efficiently. The aim of this work was to improve the cryopreservation protocol for Mytilus galloprovincialis larvae described in Paredes et al. (in: Wolkers, Oldenhof (eds) Cryopreser...
Preprint
Full-text available
Certain sacoglossan sea slugs can sequester and maintain photosynthetically active chloroplasts through algae feeding, a phenomenon called kleptoplasty. The period while these plastids remain active inside the slug's body is species- and environment-dependent and can span from a few days to more than three weeks. Here we report for the first time t...
Article
Full-text available
Climate change has been considered as the most serious threat to biodiversity, and therefore, it has been receiving increasing attention regarding its potential impacts on the coastal zone. According to IPCC forecasts, increase in CO2, sea and air temperature, sea level rise, and ocean acidification are expected. Thus, this study evaluated the syne...
Article
Full-text available
Seagrass carbon stocks are vulnerable to physical disturbance. We assessed the effect of clam harvesting on the organic carbon (Corg) stocks in surface sediments in four intertidal Zostera noltei meadows on the Iberian Atlantic coast (Spain and Portugal), by comparing undisturbed and harvested areas. We also monitored the spatial cover of the meado...
Article
Full-text available
DNA metabarcoding has great potential to improve marine biomonitoring programs by providing a rapid and accurate assessment of species composition in zoobenthic communities. However, some methodological improvements are still required, especially regarding failed detections, primers efficiency and incompleteness of databases. Here we assessed the e...
Article
Full-text available
Marine aquaculture releases mollusc shell debris which can accumulate on the seabed. Due to its low degradability, mollusc shell debris becomes integrated into the sediment, modifying both its structure and associated biogeochemical processes. These changes are expected to influence the biological assemblages within the sediment, which play a key r...
Article
Full-text available
Cryopreservation is the only reliable method for long-term storage of biological material that guarantees genetic stability. This technique can be extremely useful for the conservation of endangered species and restock natural populations for declining species. Many factors have negatively affected the populations of high economical value shellfish...
Article
Full-text available
Sampling impediments and paucity of suitable material for molecular analyses have precluded the study of speciation and radiation of deep-sea species in Antarctica. We analyzed barcodes together with genome-wide single nucleotide polymorphisms obtained from double digestion restriction site-associated DNA sequencing (ddRADseq) for species in the fa...
Article
Invasive macroalgae represent one of the major threats to marine biodiversity, ecosystem functioning and structure, as well as being important drivers of ecosystem services depletion. Many such species have become well established along the west coast of the Iberian Peninsula. However, the lack of information about the distribution of the invaders...
Article
Full-text available
Introduction: The exploitation of the sea cucumber (Holothuria (Panningothuria) forskali) in Ría de Vigo (NW Spain) is recent (2015) and it has been done until now with scarce or no information about some key biological aspects as reproduction, recruitment or growth. Objective: To describe the reproductive cycle of H. forskali in Ría de Vigo. Metho...
Article
Full-text available
The abundance and distribution of intertidal canopy-forming macroalgae are threatened by the increase in sea surface temperature and in the frequency and intensity of heatwaves caused by global warming. This study evaluated the physiological response of predominant intertidal macroalgae in the NW Iberian Peninsula (Bifurcaria bifurcata, Cystoseira...
Article
Full-text available
Marine hard-bottom communities are undergoing severe change under the influenceof multiple drivers, notably climate change, extraction ofnatural resources, pollutionand eutrophication, habitat degradation, and invasive species. Monitoring marinebiodiversity in such habitats is, however, challenging as it typically involves expensive,non-standardize...
Article
Full-text available
Marine hard-bottom communities are undergoing severe change under the influence of multiple drivers, notably climate change, extraction of natural resources, pollution and eutrophication, habitat degradation, and invasive species. Monitoring marine biodiversity in such habitats is, however, challenging as it typically involves expensive, non-standa...
Article
Full-text available
Marine hard-bottom communities are undergoing severe change under the influence of multiple drivers, notably climate change, extraction of natural resources, pollution and eutrophication, habitat degradation, and invasive species. Monitoring marine biodiversity in such habitats is, however, challenging as it typically involves expensive, non-standa...
Article
Cryopreservation of gametes, embryos and larvae of marine invertebrates has been investigated in many studies throughout the years. There are many favorable studies on sperm cryopreservation but oocytes are still under research as no successful results have been sustainably obtained for this type of cells. The preservation of both maternal and pate...
Poster
Selected 72 hold D larva and 10% Ethylene-Glycol + 0.4 M Trehalose in Sea Water. Cryopreservation protocol: equilibration of 60 min. Samples loaded into 0.25 mL straws. Using a programmable freezer: 2 min at 4°C,-1°C/min to-12°C, 2 min at-12°C (seeding),-1°C/min to-35°C, plunging into LN, thawing by immersion into a water bath at 35°C. Larval reari...
Article
Full-text available
DNA metabarcoding provides a rapid and effective identification tool of macroinvertebrate species. The accuracy of species-level assignment, and consequent taxonomic coverage, relies on comprehensive DNA barcode reference libraries, which, due to incompleteness, are currently a recognized limitation for metabarcoding applications. In this study, we...
Preprint
Full-text available
Sampling impediments and paucity of suitable material for molecular analyses have precluded the study of speciation and radiation of deep-sea species in Antarctic ecosystems. This knowledge may serve to establish the framework for evaluating future anthropogenic alterations, particularly in a highly susceptible region like Antarctica. Here, we anal...
Article
Full-text available
Microbial biofilms can be key mediators for settlement of macrofoulers. The present study examines the coupled effects of microbial biofilms and local environmental conditions on the composition, structure and functioning of macrofouling assemblages. Settlement of invertebrates over a gradient of human-impacted sites was investigated on local biofi...
Article
Mytilus galloprovincialis is one of the most farmed marine species worldwide. Several factors limit the global production, including the supply of natural seed. Cryopreservation can provide a stable resource of early larval stages avoiding seasonal limitations and enhancing selective breeding for inland seed production. The aim of this work was to...
Article
Due to the economic importance of the mussel Mytilus galloprovincialis in the Spanish aquaculture, there is a growing interest in developing alternative methods to ensure the supply of good-quality biological material and to minimize the uncertainty and variability that might be a source of economic risk for this sector. The aim of this work was to...
Article
Global aquaculture production of blue mussel has increased over last years. This work reaffirms the great potential of cryopreservation technique on mussel industry and overcome economic barriers a cause of a traditional and rudimentary management and continue growing. The aim of this work is to set some preliminary basis attending to toxicity of c...
Article
Temporal variation patterns and bioturbatory activity of polychaete assemblages have been insufficiently studied. Two subtidal fine-sediment sites have been sampled in order to describe and compare polychaete temporal variation patterns. In order to estimate bioturbation potential (BP), a new approach is proposed that aims maximum versatility for c...
Book
La nueva guía de los moluscos marinos de Galicia es una obra en la que se tratan un total de 630 especies de moluscos diferentes. Considerando que las conocidas en nuestras aguas rondan las 900, se puede decir que aparecen en esta guía prácticamente todas las que pueden encontrarse entre el nivel intermareal y los 200 metros de profundidad. Cuenta...
Presentation
Full-text available
Many species of sacoglossan sea slugs, especially those belonging to genus Elysia, are able to sequester functional plastids inside their digestive glands (keptoplastids) in different periods of time, depending on each species1. This phenomenon was explained for almost twenty years using the lateral gene transfer hypothesis i.e. “photosynthetic” se...
Poster
Full-text available
Mussel aquaculture production has increased worldwide during last years. Barriers associated to marine invertebrate breeding diminish economical benefits. Experimental lines try to develop a method to establish a sustainable broodstock reducing economic costs. Cryopreservation techniques are being studied due to potential application in aquaculture...
Article
Poor physiological acclimatization to climate change has led to shifts in the distributional ranges of various species and to biodiversity loss. However, evidence also suggests the relevance of non-climatic physical factors, such as light, and biotic factors, which may act in interactive or additive way. We used a mechanistic approach to evaluate t...
Preprint
Full-text available
Negative impacts of marine invasions include loss of genetic diversity, ecosystem functions/processes, and/or community structure and, consequently, a threat to global biodiversity through biotic homogenization. Recent studies indicate that invasive macroalgae make up a significant proportion of marine invasive species. Marine Protected Areas (MPAs...
Preprint
Full-text available
Negative impacts of marine invasions include loss of genetic diversity, ecosystem functions/processes, and/or community structure and, consequently, a threat to global biodiversity through biotic homogenization. Recent studies indicate that invasive macroalgae make up a significant proportion of marine invasive species. Marine Protected Areas (MPAs...
Preprint
Full-text available
Negative impacts of marine invasions include loss of genetic diversity, ecosystem functions/processes, and/or community structure and, consequently, a threat to global biodiversity through biotic homogenization. Recent studies indicate that invasive macroalgae make up a significant proportion of marine invasive species. Marine Protected Areas (MPAs...
Conference Paper
Full-text available
The Galician Rías Baixas, a set of elongated bays of tectonic origin located in the NW coast of the Iberian Peninsula, host a great marine biodiversity. They also host intense fishing and aquaculture activities, as well as 80 % of the fish canning industries in Spain, which produce 4300 million cans every year. These industries are characterized by...
Conference Paper
Full-text available
Temporal variation in benthic assemblages is influenced by a broad range of factors. The life cycles of each species, environmental factors such as changes in sediment features or hydrodynamism, jointly with human pressures, overlap to determine the structure and functioning of these assemblages. Furthermore, results are very dependent on the scale...
Article
Full-text available
In this paper we evaluated the composition and abundance of molluscs associated with beds of the red algae Gigartina, located in the South Shetland Islands (Antarctic Peninsula) and the Strait of Magellan (southern Chile). During the summer season of 2013, samples were obtained by scuba diving using a 0.25 m² quadrat, arranged randomly within the b...
Article
The consequences of physical disturbances to seagrasses depend on disturbance frequency relative to the capacity for recolonization and recovery following fragmentation. In a subtidal seagrass meadow of Zostera marina L., following a season of clam harvesting, we compared the temporal change of shoot density and biomass of this seagrass together wi...
Article
In the frame of the COST ACTION ‘EMBOS’ (Development and implementation of a pan-European Marine Biodiversity Observatory System), coverage of intertidal macroalgae was estimated at a range of marine stations along the European coastline (Subarctic, Baltic, Atlantic, Mediterranean). Based on these data, we tested whether patterns in macroalgal dive...
Article
A sampling effort carried out in the Northern coast of Portugal revealed the presence of two species of sea spiders that are recorded for the first time in Portugal: Anoplodactylus angulatus and Ammothella longioculata. While A. angulatus is widespread along the North East Atlantic coast, A. longioculata is recorded for the first time outside of th...
Article
Full-text available
Examining how variability in population abundance and distribution is allotted among different spatial scales can inform of processes that are likely to generate that variability. Results of studies dealing with scale issues in marine benthic communities suggest that variability is concentrated at small spatial scales (from tens of centimetres to f...
Article
Coastal ecosystems are highly complex and driven by multiple environmental factors. To date we lack scientific evidence for the relative contribution of natural and anthropogenic drivers for the majority of marine habitats in order to adequately assess the role of different stressors across the European seas. Such relationship can be investigated b...
Article
Full-text available
Within the COST action EMBOS (European Marine Biodiversity Observatory System) the degree and variation of the diversity and densities of soft-bottom communities from the lower intertidal or the shallow subtidal was measured at 28 marine sites along the European coastline (Baltic, Atlantic, Mediterranean) using jointly agreed and harmonized protoco...